ESP8266-PRO How to flash

The new esp8266-pro from robotdyn.com comes with no documentation on how to program or run. I used the USB Serial adapter CP2102 to program the unit.

It has a 3.3 and 5 volt output. It is important only using 3.3V or the board is likely to be damaged. You need the following connections to program the board.

CP2102 – ESP8266-Pro
DTR – RST
RXD – TXD
TXD – RXD
VCC – 3.3V
GND – GND

On the board the you need to add the following connections to be able to program it.
EN – VIN or 3.3V
IO15 – GND
IO0 – GND

In order for the board to run your sketch you must connect
EN – VIN
IO15 – GND
IO0 – VIN or 3.3V

I used no resistors, as it is not necessary.
The settings for Arduino IDE

If you want to run the board with a battery for years check out this post to make the necessary modifications.

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