[简体中文]
First release
2017-6-1 public sale
Pinout diagram of V1
Schematic diagram of V1
2019-10-20 public sale
Change the RF switch from PE4259 to UPG2179.
Pinout diagram of V2.0
Schematic diagram of V2.0
2020-04-01 public sale
Added version number on the board silk print.
Pinout diagram of V2.2
Schematic diagram of V2.2
