GrundigRGBESP8266: Difference between revisions

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__NOTOC__
{{Project
{{Project
|Name=Grundig RGB lamp with ESP8266
|Name=Grundig RGB lamp with ESP8266
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|Niche=Electronics
|Niche=Electronics
|Purpose=Infrastructure
|Purpose=Infrastructure
|Picture=Grundig_RBG_Mood_Light_PCB.jpg
|Picture=Esp8266-breadboarded.jpg
|Tool=No
|Tool=No
|Location=
|Location=
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|Category=
|Category=
}}
}}
== the plan ==
== the plan ==


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* https://www.conrad.nl/nl/grundig-rgb-mood-light-grundig-rgb-led-verlichting-mood-light-meerkleurig-1000346.html
* https://www.conrad.nl/nl/grundig-rgb-mood-light-grundig-rgb-led-verlichting-mood-light-meerkleurig-1000346.html
[[Image:Grundig_RBG_Mood_Light_PCB.jpg|250px]]

Revision as of 21:30, 29 March 2015


Grundig RGB lamp with ESP8266
Esp8266-breadboarded.jpg
Participants User:buzz
Skills Electronics, Programming
Status Planning
Niche Electronics
Purpose Infrastructure
Tool No
Location
Cost
Tool category

Grundig RGB lamp with ESP8266

Esp8266-breadboarded.jpg {{#if:No | [[Tool Owner::{{{ProjectParticipants}}} | }} {{#if:No | [[Tool Cost:: | }}

the plan

  • Disable the shitty mcu inside the lamp (done)
  • Solder wires to the vcc, gnd and pwm pins (nearly done)
  • Connect a ESP8266 to it with nodemcu and some lua sauce
  • ????
  • Profit!

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.

consideration

  • Make wifi foolproof, webpage style config and 'robust'
  • Do fancy fades inside the ESP8266 ?
  • Lower voltage a bit (about 0.7V?) to power the ESP8266
  • Pray the pwm output has enough umpf


links



Grundig RBG Mood Light PCB.jpg