ESP8266 Community Forum

- Fri Dec 12, 2014 11:57 am #4683 It's quite dry in my office, and walking across the rug and sitting down at my metal-frame desk frequently results in a static discharge. I've noticed that this frequently causes my ESP8266 module to reset, especially if it's a reasonably strong discharge. Note that I'm not touching the project - it's completely insulated. The module is connected to an Arudino which does not reset or otherwise experience any kind of issue.

Any suggestions for properly isolating the module from ESD without blocking the onboard antenna?

- Fri Dec 12, 2014 3:25 pm #4699 Try inserting series resitors in the wires from the Arduino to the ESP.
Try putting a 100nF cap at the ESP's reset line. Ceramic and as close as possible.

- Fri Dec 12, 2014 4:05 pm #4705 It's also been noted that the GPIO and reset lines don't appear to be pulled high by the device, and just float high.

Putting a 10k or even as low as a 1k resistor from RST to VCC may also help.