Friday, May 8, 2020

Huawei/Honor car charger comparison - AP31 vs CP31 vs AP38 vs AP38C vs CP37 vs CP39S

Huawei produces several models of car charger under its own Huawei or Honor brand. Different model of the car charger looks about the same, but their maximum charging output is different, and their price is different too.

Let's take a look on their differences, so that if you want to buy one, you could buy the correct model at the right price tag.

Huawei CP39S


Technology: SuperCharge wireless
Maximum power output: 27W
15-layers safety protection
You won't get this wrong, as this model is a wireless charger which looks different from the other models. It can only charge handphones that support wireless charging, such as Huawei P20 Pro, P30 Pro, Mate 20 Pro, Mate 30 Pro 5G, Mate RS, Mate 20 RS, Mate 20 X, etc.


Huawei CP37

Technology: SuperCharge 2.0
Maximum power output: 40W
12-layers safety protection
Charging USB #1: 5V2A
Charging USB #2: 10V4A max


Huawei AP38

Technology: SuperCharge
Maximum power output: 27.5W
Charging USB #1: 5V1A
Charging USB #2: 4.5V5A / 9V2A
5-layers safety protection
This is the same as Honor AP38C, but under Huawei brand.


Honor AP38C

Technology: SuperCharge
Maximum power output: 27.5W
Charging USB #1: 5V1A
Charging USB #2: 4.5V5A / 9V2A
5-layers safety protection
This is the same as Huawei AP38, but under Honor brand.


Huawei CP31
Technology: QuickCharge
Power output: 18W + 5W
Charging USB #1: 9V2A
Charging USB #2: 5V1A
5-layers safety protection
This is the same as Honor AP31, but under Huawei brand.


Honor AP31
Technology: QuickCharge
Power output: 18W + 5W
Charging USB #1: 9V2A
Charging USB #2: 5V1A
5-layers safety protection
This is the same as Huawei CP31, but under Honor brand.

Thursday, May 7, 2020

Using Android phone's camera as webcam for PC and Mac with Iruin

Not long ago, I wrote about DroidCam which can turn the camera on your Android smartphone into webcam for your Windows or Linux computer, to be used in Skype, Zoom, and other applications that utilize a webcam.

The main limitation of DroidCam is that, right now, it does not work with Apple's product. You cannot use it to capture and stream video from iPhone or iPad, nor use it as webcam in iMac or MacBook.

Not to worry, because there are alternatives to DroidCam that can also work with Apple's product, such as Iruin.


Similar to DroidCam, in order to make use of the camera of your smartphone as webcam for your computer with Iruin, you will need to install the Iruin webcam app in your phone, and then install Iruin webcam software in your computer.
and then
Iruin is very easy and straightforward to use. It has a very clear-cut Settings page too.


It is simple, yet powerful. It's free version can support high resolution and even 4k video (3840 x 2160). I found its video brighter, clearer and finer than DroidCam too.


To use Iruin as your webcam, just select "Iruin Webcam" as your video camera source. Below is an example of how to set it in Zoom.



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Tuesday, May 5, 2020

Buying guide for electronic dance mat for TV / computer

Nowadays, particularly during the Movement Control Order (MCO) period, a kind of electronic dance mat that works together with TV or computer has become a hot selling item in many e-commerce platforms.


This kind of electronic dance mat is a kind of portable floor blanket with electronic sensors underneath, so that it can become an input device to its dancing/gaming console box, using TV or computer screen as its interactive screen display.

It is ideal for home aerobic exercise, and to have a fun interactive time with children.

Normally, the electronic dance mat system has 3 main functions:
  • Dancing with music by accurately stepping at the right region on the mat at the right timing, which could also include waving your hand at the right timing.
  • Aerobic exercise and yoga training by on-screen coaching.
  • Playing console games


Below are some of the key considerations when buying an electronic dance mat for your reference.

1. Dance mat for 2 persons

There are 2 variants of this kind of dance mat. The square single person mat, which is cheaper, and the rectangular 2 persons mat, which is double the size of the single person one.

Unless you are living alone and always using the dance mat alone, otherwise you won't be regret buying the 2 persons mat, so that you can dance together in 2 persons, and playing interactive console games in 2 persons mode.

2. PU surface material

Normally the dance mat surface material is made of either PVC or PU. PVC type is slightly cheaper, but less durable. The PU type is more robust and durable, and provides better touch with the foot. It is also water resistance, and easier to clean.

The PVC type comes with varies thickness, some can be as thick as 30mm to 50mm, depends on the filler foam inside it. The PU type is normally as thick as the thin PVC type without extra thickness. Anyhow, you can always achieve the same thickness effect by laying a layer of tatami foam tiles underneath the PU dance mat. The cost for tatami foam tiles as shown below is much cheaper too.

3. HDMI connection

Older version of the dance mat console box connects to the TV by composite RCA cables. Newer version connects to the TV by HDMI cable.

Unless your TV has limited number of HDMI ports, it is better to choose the dance mat which uses HDMI connection rather than composite RCA connection, as HDMI supports higher screen resolution.

4. Wireless connection

Older version of the dance mat is integrated with its console box. The distance between the dance mat and your TV will then be restricted by the length of the connecting cable.

Newer version of the dance mat connects wirelessly to a separate console box, which in turn connects to the TV with HDMI or RCA cable. In the way, you can place the dance mat anywhere within the wireless communication distance. The dance mat will need to operate using batteries.

5. Wireless hand controllers

Hand controller is another input device beside the dance mat. Beside buttons, it also has a gyroscope sensor inside to detect hand movement.


If your dance mat is for single person, your package will come with one hand controller; if your dance mat is for 2 persons, your package will come with two hand controllers.

There are 2 types of hand controller. The older version is wired to the console box, and the newer version is wireless. You should get the wireless one which provides you with freedom of movement.

Certain dance mat packages don't come with any hand controller. They are either having a console box with camera that can capture your body movement, eliminating the need of using gyroscope in the hand controller, or the package reduced the price by not supplying with the hand controller.

Hand controller is quite essential which playing console games. Without the hand controller, the games could become very difficult to play, less fun, or even totally unplayable.

6. SD-card external storage

SD-card makes it possible to add more games and music to the dance mat system.

More intelligent dance mats can automatically generate dance steps by analyzing on the new MP3 files you store in the SD-card, while other less intelligent dance mats (usually cheaper) will always generate the same set of dance steps regardless what MP3 file you store in the SD-card.

Some cheaper version of dance mat system is without SD-card slot, and you are confined with the games and dancing music provided in the internal storage of the system. You are not able to add more on top of the existing.

7. Language

Most of this kind of dance mat are made in China. Most of their system only come in Chinese language. Some of them have English user interface. If you need English, make sure you choose the correct one, which needs to be explicitly indicate it has English user interface.


Below are some of the optional features and functions that are nice to have, which you can consider as well. Usually these additional features and functions will raise up the price tag of the dance mat accordingly.

a. Dancing stage light

Some dance mat comes with a crystal ball dancing stage light, making it more fun to dance on it.


b. LED guiding lights

Some PU type dance mat comes with LED lights to guide you to step on the right place when dancing on it. Those dance mat with LED lights will consume more number of batteries.


c. Augmented reality

Some dance mat system with camera can make yourself appear in your TV screen as a character. You can then dance interactively together with animated character(s) in the TV. It is also more fun playing games in augmented reality.

d. Connect to computer

Most newer version of dance mat's console box is able to connect to your computer by using a USB cable.

After installing the correct device driver, your computer will then be able to recognize the dance mat and its hand controllers as input devices.

The dance program, exercise coaching program and games are of separate set from those in the console box, and need to be installed in your computer.

There are also third party dance program such as StepMania which you can download and install in your computer to work with the dance mat.

This feature is good to have, because your computer screen is usually much smaller than your TV, unless you use a projector screen. Normally, people will just use the dance mat with TV, and seldom with computer.

Monday, May 4, 2020

How to get 16GB free VPN every month from Windscribe

Windscribe defines itself as "a set of tools that work together to block ad trackers and web beacons, restore access to blocked content and help you safeguard your privacy online". Basically, it is a VPN service with some additional privacy and security protection features such as the R.O.B.E.R.T.

You should consider to use Windscribe if you are looking for a VPN provider that provides at least 10GB free monthly usage to you, without time limit (lifetime validity), without any ads annoyance, with reasonably fast and stable connection, and rapidly improving with new features and functions as well as servers coverage.


Previously, Windscribe used to provide promo code to provide as much as 50GB or even 60GB free monthly usage, but those promo codes are no longer valid. Anyhow, you can still get 16GB and more free VPN every month, by following the steps below.

Click here to create a new Windscribe account, and you will get 2GB free monthly VPN. Note that it is a referral link to give you an additional 1GB VPN per month. If your Windscribe account is opened without a referral, you will only get 8GB free monthly VPN in the next step, instead of 9GB.

Verify your email address with Windscribe, and you will get an additional 9GB free monthly VPN. That will add up to a total of 11GB free VPN per month.

Login to Windscribe website and go to your Account Overview page, click the "Tweet 4 Data" button and post the promotional info to your Tweeter account, you will get another 5GB free monthly VPN. That's how you can reach 16GB free VPN every month.

If you want additional free data, become a referral by following the instruction here. For each successful referral with confirmed email, you will get an additional 1GB per month together with your friend.

If you like Windscribe, you can also upgrade your account to Pro by paying subscription, which will provide you with unlimited VPN data usage, much more servers and locations availability, accessible with same account from unlimited devices, and full features. You can click here to upgrade to Windscribe Pro account with special discount.

Windscribe can be installed in:
  • Computers: Windows, Linux and Mac OS
  • Smartphones and tablets: Android and iOS
  • Web browsers: Chrome and Firefox (will only protect web browsing activity)
  • Routers that support OpenVPN connections
Windscribe supports the following VPN connection modes, and by default will automatically pick the best mode for you:
  • IKEv2
  • OpenVPN TCP
  • OpenVPN UDP
  • Stealth - encapsulates OpenVPN in a TLS tunnel via Stunnel
  • Wstunnel - encapsulates OpenVPN in a WebSocket
Why you need VPN? There are many reasons, to name a few:
  • Protect your privacy from the website or server you visit by masking your actual IP address and location.
  • Stay anonymous to the websites you visited by various privacy tools provided by Windscribe in addition to the VPN connection.
  • Block unwanted ads, malware, etc. with tools provided by Windscribe.
  • Hide your Internet activity from the network devices of public WiFi, company's network device, ISP network device, etc. which might have interest to log and trace your Internet activity.
  • Escape certain kind of data throttling imposed by WiFi provider, school, company, ISP, etc.
  • Escape certain kind of QoS bandwidth throttling imposed by WiFi provider, school, company, ISP, etc.
  • Bypass censorship imposed by WiFi provider, school, company, ISP, government, etc.
  • Access to website, service and/or content that only made available to certain region.
  • Enjoy discounted price available to certain region for online purchasing.
  • Securely access to your internal resources by using Windscribe Port Forwarding.
  • Manually route your network path to oversea server to achieve faster and/or more stable connection by selecting a strategic VPN location.
You might need to make use of Stealth or Wstunnel modes mentioned above in order to escape throttling and/or bypass censorship in certain tough situation.

Sunday, May 3, 2020

List of smart watches, bands, weighting scales and wearable devices that can be linked with Huawei Health

Huawei Health is an integrated mobile application for health management, physical activity journaling, professional exercise coaching and wearable device management. It is available for free download in Google Play Store, Apple App Store and also Huawei App Gallery.

 

Although Huawei Health can work as a standalone mobile app in the smart phone, its power is only unleashed when it is wirelessly paired with smart watch, smart band, weighting scale and/or other wearable devices with Bluetooth.

Huawei Health has a pedometer which can intelligently takes your step counts collected from the handphone and also from all the connected devices, and display the composite result.

It can display the total distance travelled by your body from combined activities of walking, running, climbing and other. It can also display the amount of calories burned from such activities. It can even display the height climbed by your body from the composite data recorded through the barometer in your smartphone and connected wearable devices.

It also provides dashboard for heart rate records, SpO2 blood oxygen saturation measurement, sleep quality analysis, stress level analysis, weight measurement, exercise records, and even menstrual cycle tracking for women (by using data from another mobile app called Huawei Cycle Calendar).

Huawei Health is also a wearable device management center for paired devices. You can use it to upload and change watch faces, upload and manage music in the wearable, configure device settings, and even perform firmware update to the wearable.

Currently, the list of officially supported devices that can work with Huawei Health are as below. Devices not in the list are not yet fully tested by Huawei for their compatibility with Huawei Health, which you can still try your luck to find out if their can successfully paired with Huawei Health without much problem.

Huawei Health supported smart watches:
  • Huawei Watch GT 2 (both 46mm and 42mm)
  • Huawei Watch GT 2e
  • Huawei Watch GT (both 46mm and 42mm)
  • Huawei Watch 2
  • Huawei Porsche Design Watch
  • Huawei Fit
  • Honor MagicWatch 2
  • Honor Watch Magic/Dream

Huawei Health supported smart bands:
  • Huawei Band 4 / 4 Pro
  • Huawei Band 4e
  • Huawei Band 3 / 3 Pro
  • Huawei Bend 3e
  • Huawei Band 2 / 2 Pro
  • Huawei TalkBand B5 / B5 Lite
  • Huawei TalkBand B3
  • Huawei Color Band A2
  • Honor Band 5i
  • Honor Band 5 / 5 Sport
  • Honor Band 4 / 4 Running Edition
  • Honor Band 3

Huawei Health supported weighting scales:
  • Huawei Body Fat Scale
  • Honor Scale 2
  • Honor Smart Scale
  • PICOOC S1 Pro Body Fat Scale

Huawei Health supported heart rate monitors:
  • Jabra Sport Pulse Wireless Headphones
  • Suunto Smart Belt Heart Rate Strap
  • Polar H7 Heart Rate Chest Strap

Wednesday, April 29, 2020

My Tx8 3.5mm AUX to Bluetooth 5.0 converter for audio transmitting / receiving

My Ruizu X02 MP3 player is without Bluetooth output function, and I think it would be good to add Bluetooth function to it, so that it can output audio to wireless earbuds, Bluetooth speaker, soundbar, etc.

There are cheap AUX to Bluetooth converters available, some even priced below RM20. Based on their product description and customer review, the follow shortcomings are quite common to them:

  • Single function of either Bluetooth receiving or transmitting only.
  • Poor and short distance connection.
  • Sound is lagging behind due to low transmission rate.
  • Battery only works for short hours before recharging needed.
  • Product quality not so good with high faulty rate after some times of use.
Anyhow, I managed to find this Tx8 2-in-1 Bluetooth transmitter and receiver, at the cost of below RM30, with the following features:
  • Supports Bluetooth 5.0 for better audio data transmission quality.
  • Can work for 8-12 hours before battery recharge is needed.
  • Transmission distance exceeding 33 feet.
  • Able to remember the paired devices.

It is very compact in size, easy to carry along. It even has a fixed folder design. It comes with USB charging cable, AUX cable, RCA cable, and a user manual.


I have purposely put my Logitech M590 mouse beside to give a better idea about its size.

By connecting the Tx8 with cable to the audio output of MP3 player, computer, handphone, tablet, TV, and any other devices with AUX audio output port, the Tx8 can transmit the audio wirelessly through Bluetooth connection to wireless earbuds, speaker, sound bar, Hi-Fi system, car audio system, etc.

On the other hand, by connecting the Tx8 with cable to the audio input of a speaker, radio, sound bar, and any other audio devices with AUX or RCA input, the Tx8 can receive the audio wirelessly through Bluetooth connection from handphone, tablet, computer, TV, media player, smart watch, etc.

The Bluetooth pairing is pretty fast, and the connection is pretty stable.

If you are looking for similar gadget with an affordable price, you can consider this one.

Saturday, April 18, 2020

Raspberry Pi - fully working computer at the cost of RM300++ (best for home use during and beyond MCO period)

During current Movement Control Order (MCO) period, there are quite a lot of schools have resorted into online teaching and learning mechanism. There are also quite a lot of companies practicing work-from-home (WFH) concept.

However, this raised a question: what if the family does not have a computer at home? And, what if the family only has one computer at home, but needs to be shared by parents who need to WFH and also multiple children who need to learn from home?

Well, you can buy a fully working computer online, including additional computers needed for all your family members, at the cost of RM300++ each, in the condition that you have a screen (either computer monitor or TV) at home, and Internet access (either phone's hotspot sharing or broadband Internet).

The full set Raspberry Pi (recommended for Version 4 model B with 2GB RAM) with all its required accessories, is a fully working computer at the cost of about RM300-RM360 only. Beside its low cost, it also consumes minimal amount of electricity and requires minimal storage space due to its small size.


It is good enough for normal online learning, doing assignments with office suite (word processor, spreadsheet, presentation slides, database, etc.), and some entertainment including games.

With about RM360, you can buy the following full set of computer:
  • Raspberry Pi 4 Model B with Quad core CPU and 2GB RAM - RM174
  • Casing for the Raspberry Pi 4 Model B - RM25  (*1)
  • Official Raspberry 15W power adapter - RM35
  • Micro-HDMI to HDMI cable - RM10
  • Wired earphone - RM15 (*2)
  • 16GB micro SD card preinstalled with NOOBS - RM36 (*3)
  • Logitech MK220 wireless keyboard & mouse - RM65 (*4)

*1: The casing is an optional item. Without the casing, the Raspberry Pi will be a naked computer board as shown in the image above. With the casing, it will look like below:

*2: If you connect the Raspberry Pi to your TV using HDMI cable, you can make use of the audio output from your TV. You need an earphone or speaker, either wired or Bluetooth, to listen to the audio from Raspberry Pi if you are using a monitor without audio output.

*3: Raspberry Pi makes use of micro SD card as its "harddisk". You can also buy a blank micro SD card, which is much cheaper, and download NOOBS for free from Raspberry's website. That will require some basic computer knowledge to download and install NOOBS into the micro SD card. NOOBS is an installer that will prepare the SD card for Raspbian (including partitioning, etc.), and automatically download and install the operating system into it.

*4: Alternatively, you can also use cheaper USB wired keyboard & mouse to further reduce the cost.

The recommended operating system will be Raspbian, a scaled down version of Debian Linux. It has fully functioning Chromium or Vivaldi web browser, LibreOffice resembling the Microsoft Office, and tonnes of installable free softwares in Raspbian repository. This is good enough to access to Google suite of applications (Gmail, Google Drive, Google Docs, Hangout, ...), watch online & offline video, listen to online & offline music, access to learning portal and other websites, attending audio/video conferencing, etc.

There are also programming tools and graphic design software available in Raspbian for learning purpose.

In fact, you can install a full LAMP stack in Raspbian and turn your Raspberry Pi into a web application server as well.

The Raspberry Pi 4 Model B also supports webcam and voice input with additional module, which will need additional cost to buy and some technical skill to assemble.

Beside Raspbian, there are other choices of operating system that works with Raspberry Pi too, including Microsoft Windows 10 IoT Edition, which you can explore if you are enthusiastic with them.

Thursday, April 16, 2020

Huawei Watch blood oxygen saturation (SpO2) measuring feature

Blood oxygen saturation (SpO2) is a feature in the latest Huawei and Honor smart watches.

Image from Huawei's website

This feature is available in the Huawei Watch GT2 sold in China, but had somehow been disabled in that model sold in the international market. Anyhow, this feature has now been enabled to Huawei Watch GT2 sold outside China as well, following its firmware update version 1.0.6.26 and above (latest firmware version as of now should be 1.0.6.32).


SpO2 represents an estimation of oxygen levels in a person’s bloodstream. According to description in Huawei's website, "blood oxygen saturation (SpO2) is one of the important vital signs that can reflect the oxygen supply of the body. Very low levels of SpO2 can result in serious symptoms such as lack of energy, fatigue and light-headedness."

Under normal conditions, a healthy person should have an SpO2 level between 90 and 100.

The heart of an average adult normally pumps about 5,000 ml of blood per minute to the tissues and organs of the body, delivering about 1,000 ml of oxygen per minute to the body. Body function will be affected if the oxygen is at low level, causing hypoxemia and even hypoxia problem.

There are 2 types of hypoxemia. Acute hypoxemia occurs over a relatively short period of time, while chronic hypoxemia is ongoing over a longer period.

Common symptoms of acute hypoxemia include: shortness of breath, rapid breathing, wheezing, cough, confusion, headache, fast heart rate, and bluish colour in skin, fingernails and/or lips.

Common symptoms of chronic hypoxemia include: pulmonary hypertension, cor pulmonale (enlargement of right-side of the heart), heart failure, and polycythemia.

People who are having a higher risk of hypoxemia should regularly check their SpO2 level. You are one of them if you are:
  • always on a busy work schedule
  • working or living in a stressful environment
  • working in a situation that needs to use a lot of brain everyday
  • located in a place of high-altitude (with low atmospheric pressure)
  • elderly people (with decreased body function)
  • snoring a lot or having sleep apnea problem (might cause respiratory obstruction)
  • having heart defects
  • having lung conditions, including asthma, emphysema, bronchitis, corona virus infection, etc.
Huawei SpO2 sensor technology makes it easy to measure SpO2 level, anytime, at any place. Clinically, SpO2 level is measured using arterial blood gas (ABG) test, pulse oximeter, etc.

To measure SpO2 with a Huawei / Honor watch or band that supports the feature, just keep your arm still, fasten the strap tightly, and make sure the screen is facing up. Then, swipe on the screen for the SpO2 function, and start your measurement. It will take about 1 minute to complete.

Sunday, April 12, 2020

Using Android phone's camera as webcam for computer with DroidCam

You need a webcam in order to do video conferencing, or to do vlogging, or to perform online talks, ...

You might have a desktop computer with a monitor that without a camera (which is usually the case), or you need a better camera than the one on your laptop (which usually has a low resolution), or you need a replacement for your malfunctioned laptop camera, or for whatever reason that you need a webcam for your computer, wait a minute and read this before you go and purchase a physical webcam, because you can turn your Android phone into one.

DroidCam is a solution to let you make use of the camera on your Android phone to become the webcam of your computer running on either Windows or Linux operating system.

It has a pretty low hardware requirement, so you can easily turn your old Android phone with a functioning camera into your webcam. Of course, it is even better when you run it on Android phone with better specs.

All you need to do is download and install DroidCam Wireless Webcam by Dev47Apps from Google Play Store, and then download and install DroidCam client into your computer.

Beside video, DroidCam is also able to optionally stream audio from the microphone of your phone to your computer.

DroidCam can connect and stream to your computer either through WiFi, USB or HTTPS connection. WiFi is the preferred one, as it is the easiest to setup and use.

When you run the DroidCam app in your phone, you should be able to see its connection information, including the internal IP address of your handphone, and the DroidCam server port.


By default, DroidCam is using the back camera of your phone (which usually has a better spec than the front camera). You can switch it to the front camera in DroidCam setting.


If you run the DroidCam Client in your computer with the IP address and port number as shown on the DroidCam app in your phone, and click the Start button, you should be able to see the video captured by your phone's camera in DroidCam Client.

For example, before clicking the Start button in DroidCam Client, there is no webcam video shown in Skype. It will show a blue or green background.


After clicking the Start button, Skype will immediately captures the webcam video.


Note that Skype install through Microsoft Store is not working with DroidCam. If you encounter this problem, just uninstall Skype and install the Skype desktop version from the URL given below. It should work then:
On your DroidCam screen in your phone, you can also find 2 HTTPS links.

The first link is accessible from your web browser such as Google Chrome, and it will open up the DroidCam web client.


The second link is accessible with video streaming client, such as VLC Media Player. The setting for VLC Media Player is as below:


DroidCam has a feature to allow you to protect your HTTPS access with username and/or password.


DroidCam is free for use, with in-app ads support. You can also buy DroidCamX Wireless Webcam Pro in Google Play Store to remove the ads and to get more features.

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Thursday, April 9, 2020

Logitech MK220 wireless keyboard and mouse combo - work well with Raspberry Pi Zero W

The Logitech MK220 is a combo of Logitech wireless keyboard K220 and Logitech wireless mouse M150, both sharing the same USB receiver communicating using 2.4 GHz band with effective connection range of up to 10 meters or 33 feet.


The keyboard is powered by 2 AAA size batteries, while the mouse is powered by 2 AA size batteries. The batteries in the keyboard can last as long as 24 months, while the batteries in the mouse can last for about 6 months.

The keyboard is very compact in size, makes it easy to carry around and also need less space to store. Despite its compact size, it has full size keys of the same size like normal keyboards, except for the first row of function keys which are only half the size of the other keys. This keyboard is pretty quiet. It is also spill resistant.

The mouse is of the same size like other normal mice. It doesn't have fancy features, just 2 buttons and a scroll wheel.

I can't find any power on/off switch on both the keyboard and mouse. I think they are designed to be always on, and will go into standby mode when connection is not made with the USB receiver.

This Logitech MK220 is plug-and-play to Windows, Linux and Android systems. I find this combo pretty ideal to be used as input devices for Raspberry Pi.


It works flawlessly with my Raspberry Pi Zero W, by connecting its USB receiver with a micro-USB to USB converter to the Raspberry Pi's micro-USB port.

Wednesday, April 8, 2020

Managing your SSPN-i account with Bank Islam - including money top-up, withdrawal and transfer (online website & ATM)

Do you know that if you have a savings/current account with Bank Islam (BIMB), you can link your SSPN-i account(s) to your ATM card that linked with your savings/current account, and then you can manage your SSPN-i account from Bank Islam's online banking website and/or ATM machine.

However, you cannot manage your SSPN-i account with Bank Islam's mobile app yet, as the function is not available in the app.

You can apply to link your SSPN-i account with your Bank Islam ATM card either at the teller counter or at the ATM machine.

After successful linkage with SSPN-i, you will be able to see the SSPN-i option in the My Accounts menu.


This function will display your up-to-date SSPN-i information, including:
  • Linked account number
  • Depositor's name
  • Beneficiary's name
  • Beneficiary's IC number
  • Available balance
  • Current balance
You can also see SSPN-i option in the Funds Transfer menu. Note that fund transfer involving SSPN-i will incur a bank service charge of RM0.50 per transaction.



 
The types of fund transfer you can do online including:
  • From your savings/current account to your SSPN-i account (top-up)
  • From your savings/current account to 3rd party SSPN-i account (top-up others)
  • From your SSPN-i account to your savings/current account (withdrawal)
  • From your SSPN-i account to 3rd party savings/current account (withdrawal to others)
  • From one SSPN-i account to another SSPN-i account (transfer)
 

Similar functions of SSPN-i top-up, withdrawal and transfer can also be done at Bank Islam's ATM machine.

This is a pretty convenient and useful service for you to manage the money in your SSPN-i account(s) by yourself using online method or visiting to the ATM machine, without the need to go for counter service (in the bank, PTPTN office/agent, UTC center, ...)

Friday, April 3, 2020

Using Vidmore video converter to convert MP4 / MKV / MOV / WMV / AVI / FLV video to AMV format

AMV is a kind of compressed motion JPEG (M-JPEG) video format, commonly used in MP3 and MP4 players.

For example, the Ruizu X02 MP3 player can only play one type of video file, which is AMV. I would need to convert music video (MV) in the format of either MP4, MKV, MOV, WMV, AVI, FLV, etc. into AMV before my Ruizu X02 MP3 player can play the video without any issue.

There are several websites in the Internet that claimed to be able to online convert uploaded video file into AMV format. There are also several video converting software that claimed to support conversion to AMV format. I have tried some of the popular one, but all of them failed as the AMV file produced by them end-up with "invalid video format" error when I tried to play in my Ruizu X02 MP3 player.

Finally, I managed to find one video conversion software that works, which is Vidmore video converter, and it is surprisingly very easy to use for AMV file conversion.


Vidmore is a freemium software, in which the free version only allows conversion of video of length not more than 5 minutes. This is good enough for music video conversion, because most of the songs are less than 5 minutes long.

Another restriction to the free version is that, you can only convert 1 file at a time. This is also OK for me, as I only need to convert a small amount of MV to put into my Ruizu X02 MP3 player.

To perform the conversion, set the "Convert All to" selection to "AMV AMV General" and leave all the settings as default. Leave the resolution setting to be 170x144.


Then, open the video file one at a time, and click on the Convert All button to perform the conversion.

The output AMV file should be able to be played in the Ruizu X02 MP3 player.

Thursday, April 2, 2020

How to update latest firmware to Ruizu MP3 player

I have mentioned that the default firmware in Ruizu X02 MP3 player is not so user friendly, as its navigation is a little bit weird. For certain function, you need to press its left and right button to navigate up and down on the screen. This has been fixed in its latest version of firmware. The new firmware also brings in additional functions to the Ruizu X02 MP3 player, such as the 3 additional games.

New firmware for Ruizu MP3 players, be it X02 or other model of their range of products, can be downloaded from their official website.

You can click here to reach the Ruizu X02 MP3 player product page, and the click on the Newest Firmware tab to download the latest firmware file.

Alternatively, you can also click here to reach the Manual & Firmware page of Ruizu range of MP3 player products, search for the right model of your MP3 player on the screen, click on its photo, and then select Firmware to download the latest firmware file.


In order to perform the firmware update to your Ruizu MP3 player, you will need a computer installed with the firmware update application called Actions Multimedia Product Tool v2.07 which you can click here to download it. After download, just uncompress the file and install it.

The steps to perform firmware update to Ruizu MP3 player is pretty easy.
  1. Download the latest firmware from Ruizu's website. Make sure the firmware file belongs to the matching model of your MP3 player.
  2. Uncompress the downloaded firmware file in your harddisk.
  3. Connect your Ruizu MP3 player to the computer with a USB data cable.
  4. Launch the Actions Multimedia Product Tool v2.07 application.
  5. The software should show 1 USB Device Detected on its screen. If there are more than one, make sure you select the correct destination, which is your MP3 player.
  6. Load in the uncompressed firmware file.
  7. Uncheck the FLASH_ERASE checkbox. If you didn't do this, the internal storage in your MP3 player will be formatted, and all the files you stored in it will be erased.
  8. Click on the firmware update button to perform the update.
  9. When finished, you can then safely disconnect your MP3 player from your computer.
 


Tuesday, March 31, 2020

My Ruizu X02 MP3 player with 8GB internal storage

I have bought a Ruizu X02 MP3 player for my kid who is studying in a boarding school. It is a budget MP3 player which cost around RM50.


This Ruizu X02 MP3 player is very lightweight, compact at the size of just 3.9cm x 9.0cm x 0.7cm, and surprisingly feature rich. Its only shortfall is not supporting Bluetooth audio. Anyhow, Bluetooth is supported in higher ranked models of Ruizu MP3 player, such as the X06 which cost about 50% more expensive than the X02.

It doesn't come together with a earphone. well, you can easily get a decent earphone that come with your handphone, or to purchase one from the market.

Its default firmware is not so user friendly, because for certain function, you need to press its left and right button to navigate up and down on the screen. There is a new firmware version available for download in Ruizu official website. After the firmware update, its UX screen navigation is much better now. You can click here to learn about how to perform the firmware update to Ruizu MP3 player.


This MP3 player has an internal storage of 8GB. It also supports using SD card as external storage, but I found that after plugged-in the SD card, there will be additional steps to access and play the music and files, making it less convenient. In the end, I find it much better without the SD card. After all, 8GB of storage is large enough to store in a lot of songs and files.

One of the unique selling points (USP) of this Ruizu X02 MP3 player is its built-in battery's run time, which is able to play music for as long as 80 hours for a full charge cycle.

Another USP is that it supports as many as 25 languages, not only able to display the menu text in different language, but also able to correctly display filename, tag info, lyrics, and text in Chinese, Japanese, Korean, Italian, French, and characters of other languages.

Among its functions are:

1. Music player

Its music player is able to play MP3, APE, AAC, OGG, M4A, WMA, WAV and FLAC.

It has a decent software equalizer, and able to play music with satisfactory quality when paired with a good stereo earphone, or a music speaker connected with AUX cable to it.

It supports display of song lyrics with LRC file, and also display of song album image when the music is playing.

2. Audio recorder

It has a built-in mic for audio recording. Supported audio recording file formats are MP3, WAV and ACT.

The effective sound recording distance is less than 8 meters.

3. FM radio

It makes use of the connected earphone wire or AUX cable as antenna for its FM radio. It is able to memorize up to 30 favourite stations, which is quite a lot. It is also able to perform FM radio recording.


4. Photo viewer

It is able to display JPG, JPEG and BMP files on its 1.8" TFT screen. Do not expect much, as the screen resolution is low.

5. Video player

It can also play video in AMV format of resolution 128x160. You can convert Music Video (MV) into this AMV format, and it will be able to play the MV.

6. E-book

It can display content of TXT files, and allow you to put a bookmark onto the reading file. Text files with Chinese, Japanese, Korean, etc. are supported.

7. Games

Its default firmware does not come with games, but after updated its firmware to latest version, there are 3 small games found in it, namely Snake, Sokoban and Tetris.

8. Other functions

Other functions include clock (as screen saver), calendar, stopwatch and alarm.

It would be nice if it could include a simple calculator as well, but that is lacking.


All in all, this is a feature rich MP3 player with very affordable price. A nice gadget for students in the situation that use of handphone is very restricted within the school compound, but MP3 player is allowed, particularly in the library area.

Thursday, March 26, 2020

Rakuten Trade - all-rounded stock trading platform with lowest brokerage fee

Rakuten Trade is a totally online Bursa Malaysia stock trading platform. It is a joint venture between Kenanga Investment Bank and Japanese-based Rakuten Securities. It has been in service since 2017.

If you haven't open a stock trading account with Rakuten Trade, now is a good time if you intend to do so, because there is promotion which going to end soon in 31 March 2020 worth RM60 upon account activation, and the best time to buy stocks is when the price of most stock counters were beaten down.

Opening account is just for preparation to trade with Rakuten Trade, hopefully in the near future, when you are mentally and financially ready to buy stocks. A good timing will be when good development of mitigating COVID-19 virus is announced (such as, proven vaccine is available) and the socio-economical traction is recovering from the damage made by the COVID-19 virus. That will be the time to ride on the rebounding wave of the stock market. Anyhow, if you are a risk taker, you might want to enter your position earlier too.

Why Rakuten Trade?

First of all, you can open account with Rakuten Trade totally online, without the need of filling and signing on any paper forms, and without the need of visiting to their office.

More importantly, opening CDS account(s) with Rakuten Trade is free of charge, while most other broking firms will charge you RM10 per CDS account.

You can click here to open your Rakuten Trade account at their website.

Remember to use the Referral Code Voyager8 during account opening to get 500 Rakuten Trade Points (RT Points) upon successful account activation.

If you open your account on or before 31 March 2020, remember to open both Cash Upfront and Contra accounts together, and key-in HelloGold as Promotion Code by following the instruction in this linked webpage, because you can get RM60 worth of gold in HelloGold, upon successful Rakuten Trade accounts activation. The RM60 will be emailed to you in the form of HelloGold promo code, which you can key-in under the Rewards > Enter Code section in HelloGold app to redeem as gold of equivalent price.

There are 3 kinds of accounts in Rakuten Trade. You can activate any one, two or three of them. Click here to learn more about the Cash Upfront, Contra and Margin accounts available in Rakuten Trade.

Among all the broking firms in Malaysia, Rakuten Trade is one of the one with the lowest brokerage fee (if and only if, there really exist another broking firm with cheaper brokerage than them).


Their brokerage is as low as RM7, and the maximum brokerage fee per stock per day is capped at RM100 only (while most other broking firm will charge brokerage unlimitedly).

Note that beside the cheaper brokerage fee, the clearing fee and stamp duty is at the same rate with the other broking firms.

You can earn RT Points while using Rakuten Trade, especially when you are first time user. Here are some of the ways to earn RT Points:
  • Open new account with Referral Code Voyager8 and successfully activate it: +500 points
  • Open Margin account with Promotion Code RakuMargin and successfully activate it: +1888 points
  • Deposit at least RM100 into new Cash Upfront account within 5 days upon activation: +500 points
  • Deposit at least RM100 into new Contra account within 5 days upon activation: +500 points
  • Deposit at least RM100 into new Margin account within 5 days upon activation: +500 points
  • Execute 1st trade successfully within 10 days upon Cash Upfront account activation: +1000 points
  • Execute 1st trade successfully within 10 days upon Contra account activation: +1000 points
  • Execute 1st trade successfully within 10 days upon Margin account activation: +1000 points
  • Refer new friends to Rakuten Trade with your own referral code: +500 points each
  • Trading stocks with Rakuten Trade: +1 point for every RM2 in brokerage
  • Transfer shares from other CDS accounts to Rakuten Trade CDS account: +500 points

What can you do with RT Points accumulated? You can perform 1-to-1 points conversion with AirAsia BIG, B Infinite or Bonuslink, which is a pretty good deal!


The Rakuten Trade web trading platform is pretty comprehensive and easy to use.

Beside the normal functions of stock buying, selling, monitoring, watch-listing, cash in, cash out, etc., Rakuten Trade provides a pretty comprehensive and up-to-date information and report about the stock counters under Stock Info section.



It also has a very nice Stock Screener to perform stock filtering at ease.


Beside the preset screening formula, you can also define your own screening formula as well, and there are many screening criteria for you to work with.


You can even go into detail analysis of the filtered result.


Beside web online trading platform, Rakuten Trade also has mobile trading platform called iSPEED.my which you can download from Google Play Store or Apple App Store. However, its user interface is very old style and has many rooms of improvement.


If you find that Rakuten Trade is better than your current online trading platform, just go ahead to open your Rakuten Trade account to enjoy its benefit. After all, open new CDS accounts in Rakuten Trade is free of charge. You can of course continue using your existing trading platform, if you want, even though you have opened new account in Rakuten Trade.


Hint: Click on the "Older Posts" link to continue reading, or click here for a listing of all my past 3 months articles.