GrundigRGBESP8266

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Grundig RGB lamp with ESP8266
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Participants User:buzz
Skills Electronics, Programming
Status Planning
Niche Electronics
Purpose Infrastructure
Tool No
Location
Cost
Tool category

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.

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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.