the sorcery of copper
The osmocom motorola automatic serial, or simply osmotoserial (aka. motoserial), is a simple board designed to control a phone. It is used to power, flash, and communicate with Motorola C1XX phones. The purpose is to use it for osmocomBB, and be able to directly flash the phone when calling osmocon.
The hardware source and export files are available in this git. A more detailed description is available in this README. You can downland the latest version here: motoserial_vF.