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Arduino Radar Tutorial: Fading an LED With My Breath

Posted October 7, 2015 by Chris

"I built this Arduino radar project, where I control the brightness of an LED with my breath. In this tutorial, I will show you exactly how to do it. It was an experiment to get the XeThru radar to work with Arduino. I plan to expand on this later, and build more useful applications. And I will share with you how to connect the hardware, and how to create the Arduino code."

Programmable 8-character LCD module + DMM

Posted October 5, 2015 by Chris

"This new LCD module is basically an advanced version with a lot more capabilities. You can power it with the same voltage source that your signal is derived from. You can load your own code into this module but it has even some nice features for people who just need a voltmeter module and don’t want to play with C-code. "

Nintendo 64 controller on AVR

Posted October 1, 2015 by Chris

"I went on my regular trip to the dumpster the other day, and found no less than two Nintendo 64 controllers. It’s time to connect them to a microcontroller!"

FreshRoast SR500 Teardown

Posted September 29, 2015 by Chris

"This article will explain how to teardown a FreshRoast SR500 roaster and probably an SR300 as well. If you are looking to modify an SR500 the following content will be useful as well. It will include technical information about the components that make the SR500 work and suggestions of where modifications will need to take place if you wish to split fan and heater control to external dimmers, VARIAC devices, or otherwise control your SR500 with a Microchip PIC, Arduino, or other microcontroller or PID controller device."

Build A Simple Wireless Bluetooth Stereo Audio System

Posted September 27, 2015 by Chris

"This article describes how to build that wireless Bluetooth stereo audio system—one that’s also fairly low-cost—for outdoor use. The system, which maintains 20-WRMS output power, can be controlled either with a handset containing a Bluetooth connection and a music player or with an Apple iPod model."

FPGA Controlled Reflow Oven

Posted September 25, 2015 by Chris

"This FPGA Project was completed on Christmas Day 2013. I wanted to assemble surface mount components, and to do this I need a reflow oven. Everybody on the internet seems to build their own, so I set about building one using a FPGA. Everything has been implemented inside the FPGA, without there being any software in the control loop."

DIY – gForce 1.0

Posted September 23, 2015 by Chris

"Basically, the system uses an accelerometer to measure g-force and a SD card to store the data. An Arduino UNO is used to process the data coming from the accelerometer and save it on to a SD card. The system was originally developed for setup tuning and performance optimization in RC cars."

Converting an ATX Power Supply Into a DC Bench Supply

Posted September 21, 2015 by Chris

"This article is the first in the ‘Projects’ category. It’s a very inexpensive way to make a pretty good DC bench supply or dedicated 12 volt supply for working on projects or powering devices. As of this writing, a good quality and powerful ATX PSU (power supply unit) can be obtained online for about $20.00 or less. "

Mini Servo Grippers + Robotic Arm

Posted September 20, 2015 by Chris

"A little time ago I made a robotic arm, without the gripper. So last week I draw a gripper that is compatible with a mini servo, I made two versions because I had to chose between two kinds of gears, straight and rounded."

Matchbox Car v1 Build

Posted September 18, 2015 by Chris

"This build consists of a tiny DC motors ripped from a pair of 9g servos, a h-bridge motor controller, an el-cheapo 8 bit pic and a 100mAh 3.7V LiPo battery."