Hi Everyone, I seen these on EBay USA site and ordered 2 for my throttle, thought I would post for others. Karl feel free to move this post if needed.www.ebay.comPro Micro ATMEGA32U4-AU 5V 16MHz Development Board for Arduino Windows Mac OS X | eBayThe powerful MICRO is the Arduino compatible board. It is based on Arduino Microdesign. SPI, COM, and IIC bus interrupts make bus connections easier. It has 20 digital input/output pins (7 of them can be used as PWM outputs and 12 are used as analog inputs), a 16 MHz crystal oscillator, a USB connection, a power jack, an ICSP plug and a reset Button.