Connecting to Cayenne with Sparkfun ESP8266

[vapor83]

What do you have running on your ESP? is it connected via UART Serial(i.e. Serial on a Uno, pins 0 & 1? You need to have AT firmware installed on it in order to use the shield with cayenne. See this post about installing AT firmware on your device if you need to.

Esp8266

So I’ve been using the ESP8266-01 & the new ESP8266-01S. I take a proto shield and mount the ESP to it or use a breadboard adapter if you want to be able to remove it (see pics). I basically make a ESP shield that goes to the Serial RX/TX with a switch on it for easy uploading to the arduino. [image][image] First you need to upload the AT firmware for the ESP so the arduino/cayenne can talk to it using AT commands. You need the following: ESP_download_tool_v2.4 & the ESP_IOT_SDK 1.0.0. I …