Capacitive Touch Sensing using a Coin & ARM Cortex M4
Couple of years ago, I bought a Capsense add-on from Texas Instruments for MSP-430 Launchpad. It worked right out of the box as expected but a closer observation showed me that the board was nothing but a colored copper plate PCB with catchy SMD LEDS beneath. Curiosity drove me to internet and books which taught […]
Raspberry Pi based Monochrome Video Playback in Nokia 2760 caller ID LCD
Previously, I was successful in interfacing a Nokia caller ID LCD using MSP430 microcontroller. This time I wanted to drive it using the $35 single board computer – Raspberry Pi to display vital information like CPU temperature, IP address or any notifications. This idea then turned into something fun and better. I thought why not […]
Virtual Gesture Input Device Hack using Wiimote
This projects aims at designing a low cost gesture based input device for computers using a Nintendo Wii Remote(Wiimote). This work is inspired by the virtual whiteboard projects done by Johnny Lee of Carnegie Mellon University. He had used windows based bluetooth stack & wiimote interface library with Visual C#. Here I made use of […]
Hacking Nokia 2760 caller ID LCD with MSP430
For quite a long time, I had my Mom’s Nokia 2760 lying idle. So, when I thought of putting it into a good use, the LCDs caught my attention.Nokia 2760 caller ID screen is a 96×65 Monochrome LCD with a blue backlight. Here, I have written the driver code omitting graphic options […]
Gesture and Voice based computer control for differently abled
Many times, I had given a thought about the societal usefulness of my projects and seriously pondered upon an opportunity to implement one. The opportunity came in the form of “Texas Instruments’ Analog Design Contest ” in 2011. The contest required us to design a project of our wish which employs atleast three of Texas […]
AVR based Motion Sensing USB Joystick
Here, an AVR microcontroller (Atmega-8) is used to design a bare minimum motion sensing joystick for controlling games in computer. Components Used: ATmega-8 Microcontroller 2-axis accelerometer (MMA6361) Resistors,Capacitors & Zener diodes USB female connector and cable Headers, Connecting wires An Atmega-8L, overclocked at 12MHz runs virtual USB library and emulates an USB keyboard in HID […]
MSP 430 based Low Frequency Oscilloscope
A crucial equipment for any electronics enthusiast besides multimeter,soldering iron,etc is an Oscilloscope. Unfortunately these oscilloscopes come at a price which students or hobbyists couldn’t afford. Here, a low frequency oscilloscope is designed using TI’s MSP430G2231 microcontroller. The frequency range it could measure is few Khz but that is sufficient for most circuits […]