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NeoPixel RGB LED testing with Raspberry PI 3 without logic level shift

බුද්ධික - 11:14 AM 0 Edit
Recently, I learned that, there are RGB LEDs called NeoPixels with a kind of one wire interface built-in to change the colour of the LED by...

Sinhala font installation on Sony Xperia V (Android)

බුද්ධික - 7:13 PM 0 Edit
You can install any Sinhala font from your mobile itself and use it in any browser you like with following instructions. Preparation: 1)...

Experimenting Near Field Communication (NFC) with NXP MIFARE MF1S50 tags with Sony Xperia V

බුද්ධික - 10:56 PM 0 Edit
I have a Near Field Communication (NFC) capable Sony Xperia V mobile phone and I was able to communicate phone to phone.  Then, I found som...

Gerber viewer for your Android mobile phone

බුද්ධික - 10:29 PM 0 Edit
When we are working with PCB fabrication systems, " Gerber " files are widely used as the input to the fabrication device from the...

Interfacing sensors from Android mobile phone via Bluetooth

බුද්ධික - 10:16 PM 0 Edit
Most of the Android powered mobile phones have many in-built sensors. Android API gives us access to these sensors in API level without low...

Modifying cheap servo motor for continuous rotation

බුද්ධික - 9:59 PM 0 Edit
You can buy cheap servo motors from ebay for a price of less than a gear motor. But these servo motors can't be used for continuous moti...

Ultrasonic distance measurement using HC-SR04 ultrasonic module + Arduino Pro

බුද්ධික - 2:40 PM 1 Edit
Ultrasonic sensors (Ping sensors) are widely used in distance measurement as they are cheap and has a quite good accuracy. I got this cheap ...

Computer controlled automated guided vehicles (AGV) using Parellel port interfacing

බුද්ධික - 11:24 PM 0 Edit
As we built a relay board to interface with " parallel port " in my earlier post. Today I'm going to talk about the control s...

RS-485 Communication testing with MAX485

බුද්ධික - 10:47 PM 3 Edit
As we know about RS-232 communication protocol, I'm going to try RS-485 communication between two nodes. RS-485 can support multiple s...
Writing and testing Linux kernel modules for Android

Writing and testing Linux kernel modules for Android

බුද්ධික - 9:55 AM 0 Edit
We compiled and installed some modules in Linux kernel in previous post . Here I'm going to write my own kernel modules and do the same....
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