Unfortunately, the XMEGAs don’t use the extremely common ISP programming header found on just about every AVR dev board making them a bear to program.

Like many of us who fiddle with microcontrollers, [Mike] and [Brian] often found themselves using an ISP programmer and a USB-to-serial adapter. But when they started working on the latest ...

The Program-O-Tron has been designed to provide users with an SD card based AVR Programmer at an affordable price. Watch the demonstration video below to learn more about its design and features.