On the web we can find differents ways to program a ESP-8266 but in this post I’ll show you what way it works for me.
- You will need a TTL to USB interface (for example FTDI FT232RL) or you could use the Arduino Uno. In this post we’ll use the Arduino UNO.
- The Arduino IDE configured for working with ESP-8266. There are a lot of tutorials about this.
ESP-8266 in programing mode
Steps to connect:
-Run the Arduino IDE and before upload the code you must change to programming mode:
- Connect and disconnect
-. You will can see a blue light in the ESP-8266 that will indicate that you are in programming mode.
With arduino you could use the 3,3V as
-, and the ports
TX for the transfer.
NOTE: It’s important that you connect permanently the
-in Arduino for program the ESP-8266.
I’ve built with a board a programmer with a reset button that will ease the steps indicated before. This is the result.