ESP8266 ESP-01 Debugging method

1, using AMS1117 to build a 3.3V output circuit

2, ESP8266 ESP-01 wiring

As long as you connect the UTXD, GND, CH_PD, VCC, urxd these five pins can be used directly.

Note that the CH_PD is to be connected to high level.

3, using the TCP232 serial function test

3.1 Open serial assistant, baud rate set to 115200

3.2 When the power is restarted, the Blue lantern flashes a few times, then the serial assistant also has the information output. After the output is complete, you can enter "at" and then click Send, you can return "OK".

ESP8266 ESP-01 Debugging method