Bitaxe test firmware

This firmware brings up all of the main components on the bitaxe v2.2.

• DS4432U+ current DAC for setting the TPS40305 output voltage
• EMC2101 fan controller for reading the ASIC die temp and controlling the fans
• INA260 power monitor for reading the bitaxe power consumption.
• OLED

Build and Flash

Enter idf.py -p PORT flash monitor to build, flash and monitor the project.

(To exit the serial monitor, type Ctrl-].)

See the Getting Started Guide for full steps to configure and use ESP-IDF to build projects.