The reader initializes the conversation. The RF industry is activated, and several other reduced stage commands are exchanged to detect a suitable card. 1x GND 3V3 (P2 with two pins 2.54mm) connector can be employed to electricity externally the WCH CH569 MCU (it is suggested to remove the P4/SHUNT in https://roberti949riz5.vblogetin.com/profile