GrundigRGBESP8266

Grundig RGB lamp with ESP8266
Participants	User:buzz
Skills	Electronics, Programming
Status	Planning
Niche	Electronics
Purpose	Infrastructure
Tool	No
Location
Cost
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Grundig RGB lamp with ESP8266 Property "Tool Image" (as page type) with input value "File:" contains invalid characters or is incomplete and therefore can cause unexpected results during a query or annotation process.

{{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost:: | }}

control mcu pinout

This is the unmarked IC labelled U1 on the silkscreen. , vcc is 4.24-4.3 volts

               -------------
              |   o         |
 vcc      ----| 1         5 |----  gnd
 red pwm  ----| 2         6 |----  blue pwm
 ?        ----| 3         7 |----  green pwm
 ir rx    ----| 4         8 |----  ?
               -------------

Funny bit is, the PWM signal is actually inverse. So they output a high signal to turn off the LED, and a low signal to turn on the LED. This can be proven by grounding one of the pwm output pins, which turns on the respective color of LED.