This is the USB controlled Atmega8 microcontroller based power supply. Starting with the Visual Basic and IOCOMP software. FT232RL for the USB connection. Source: Ben

A little bigger than a postage stamp, the Simple Servo Tester lets you control two digital or analog servos without using a transmitter or receiver, just plug in your battery pack to start testing. Use it to check your servos before installing them into your models or to center your servos when setting up linkages. [...]

Atmel does offer an adapter board to support this chip along with another one with slightly more I/O lines. The STK505 adapter, which is reasonably priced at US$75, would be a great solution. Unfortunately, I’m stuck in China and it’s not available over here. So… it’s time for a roll-your-own solution. While a lot of [...]

Schematic & layout for an updated JDM2 PIC Programmer. Includes clock & data filter, Vpp voltage divider for modern PIC microcontrollers (eg USB PIC 18F2455/4455). This programmer uses 6 common components. Though the link says ’16F84(a)’ only, I used it for the more modern (and cheaper) 16F628(a) processors without problems. This programmer has served me [...]

This single chip solution turns your TV into a digital storage oscilloscope with a sampling rate 160 Ksps. As a bonus, five voltages on the five analog inputs can be monitored. No additional video-controller and video-RAM are required. Main goal of this project is an implementation of a high-resolution (512×240 pixels) video generator inside the [...]