Flickering with NodeMCU firmware

A project log for ESP8266 wifi light dimmer

Inexpensive ESP8266 wifi light dimmer.

RyanRyan 04/06/2015 at 00:590 Comments

My initial code was running on NodeMCU firmware. Unfortunately, when wifi was enabled there was a slight flickering (something like 5% or so) when dimming was enabled. I believe this was due to the wifi CPU cycles causing the TRIAC trigger delay to vary. If NodeMCU ever ports their code to the RTOS SDK, I will be curious to see if that corrects this issue.