1.Use The ESP32-Wrover Module.with external 4MB PSRAM
2.It has codec WM8978,using the GPIO0 as the mclk output
3.It has a mpu6050,3-axi acc and 3-axi gyro,which can make a amazing function
4.It has bq24075,which is a li-ion battery charge IC and powrt path manage
5.It expands all gpio
It's open source
Main site:https://www.whyengineer.com
Github:https://github.com/whyengineer/esp32_snow
Wiki:https://wiki.whyengineer.com
Taobao:https://item.taobao.com/item.htm?spm=68 ... 1537244126