I hate Christmas tree lights. Well not really, I just don’t enjoy having to climb under the tree every time I want to plug in or unplug the lights. In the interest of saving my sanity, I decided to build a motion activated switch that can power the lights for me. It has an integrated
Motion Activated AC Switch Continue Reading
In this project, we will use the chipKIT Uno32 board to build a digital stopwatch capable of timing minutes, seconds, and 1/10th of seconds, and with a basic start and stop control feature. A MAX7219-driven 8-digit seven segment LED display is used to display the time elapsed. The Reset switch on the Uno32 board will be used
chipKIT Project 5: Digital stopwatch on seven segment LED display Continue Reading
minDUINO v1.5 minDUINO v1.5 – A Small Footprint, Educational Arduino™ clone. This webpage holds all the design files and information to make and program the minDUINO v1.5 board. The design is released under Creative Commons Attribution Share-Alike. This means that you can freely copy the design and adapt it for your own purposes provided you
minDUINO v1.5, a small footprint, educational Arduino clone Continue Reading
This simple, robust, and low-cost signal generator, based on the LM386 power amplifier IC, provides a trio of audio-band signals with three different simultaneous outputs at the same frequency: square/rectangle (SQW), triangle (TRG), and sine (SS). Related Ramp Generator Uses Microcontroller Emulation Of Unijunction Transistor Generate A Differential Signal Using A Transformer Plus Signal Splitter
(Phys.org) —A group of Korean researchers have turned their focus on supplying a reliable, efficient power source for wearables. Professor Byung Jin Cho of the Korea Advanced Institute of Science and Technology (KAIST) and his team, recognizing that supplying power that is stable and reliable is critical to the successful commercialization of wearables, have come
Power arm band for wearables harvests body heat Continue Reading
Another quick project for today! How all started? A few hours ago I took a delivery box with few high resolution LCD’s on it. The box was made of foam material and was covered with dirty (from the delivery across two continents) yellowish tape. To begin with, in order to open the box I had
Rescuing a foam box Continue Reading
0-5V voltmeter using arduino. This article is about a simple 3 digit voltmeter using arduino. The circuit can measure anything between 0 to 5V at an accuracy of 50mV. The circuit uses minimum number of external components and can be easily modified for different voltage ranges. The display device is a common anode multiplexed seven
Voltmeter using arduino Continue Reading
Military and aerospace, where rugged operation and reliable performance in a confined, hostile environment are paramount, have long been the most dominant markets for thermoelectric energy harvesting. Typically, thermoelectric devices exploit heat from engines and motors and use it to power sensors and wireless sensor networks for condition monitoring applications. Recent innovations are generating growth
Another Arduino GPS Project – Mini GPS Device Garlow is a mini GPS Watch that is based on the Arduino Nano board. It’s not really that “mini” compared to other commercial GPS watch like the Garmin, but I really made a great effort to bring the size down. In fact it looks more like a
A Small GPS Arduino Watch / Clock Continue Reading
USB Stepper Motor Driver In this project we are going to drive a single unipolar Stepper motor M35SP-8 (5 wire) using USB interface from a PC Computer. This project is an application of the USB Interface circuit PIC18F4550 which was published here in the past. You can run other stepper motors too.It is quiet easy
USB Stepper Motor Driver Continue Reading
