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For eps8266 AT firmware

  • httpPost A simple demo for http post.
  • hardwareSerialMonitor this demo is same with serialMonitor. It's based HardwareSerial Serial1.
  • searchBaudRate this comes handy if you forgot the correct baud rate of your ESP8266. It loops through the common baud rates, sends an empty AT command, the detects the correct baud rate by checking the result. Thanks ray for the sketch.

For espduino library from Tuan PM

The espduino library works perfectly with Cactus Micro Rev2. You should upload the espduino firmware to the esp8266 module.

Please follow the wiki How to made Cactus Micro R2 as ESP8266 programmer.


  • TOI firmware It turns an Arduino into a tiny integrated web server within its own wifi network, or within an existing one.