ESP8266 Community Forum

- Sun Dec 28, 2014 2:38 pm #5838 Hello,

I have an esp8266 connected to arduino without any level shifters for the tx/rx lines. The datasheet seem to say the digital pins are 5v tolerant even though the vcc is 3.3v. I created a REST library to help post Mqtt messages to a http bridge. Details found here if you are interested.

http://www.element14.com/community/grou ... mqtt-magic