Easiest Way to Upload Program in ESP8266-01 or ESP-12E

In this video, we will see how ESP-01 or ESP-12E can be programmed using NodeMCU. It is the easiest way to program esp modules.

Board URL:

visit blog for more details:

[reynolds]

Does it write the sketch to both boards?

[creativemind]

In your circuit diagram you controlled RX pin of esp 01 to RX pin of esp8266 and TX pin of esp 01 to TX pin of Esp8266 this connection type is incorrect