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esp_rgbww_controller

★ 45 Open GitHub ↗

Custom Board to control RGB + WW channels via Wifi utziling ESP8266

// repository documentation

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# ESP8266 WiFi RGBWW LED Dimmer v1.5
Custom Hardware board for controlling 5 Led Channels via PWM (RGB + Warm/Cold White). It is designed for max current ~4.5A per Channel.

# Changelog

* 1.5 (31.01.2017)
  * DCDC wandler has been remeasured and provided for through hole mounting on pin headers
  * Jumper introduced for allowing for external 3,3V connections
  * measurements have been changed to 53mm*47mm with mounting holes tailored towards "Strapubox CO 4" casing
  * C1 has been replaced with a smaller form factor

* 1.3 (20.02.2016)
  * added another tact switch which can be used during boot to reset settings
  * silksceen naming updated

* 1.2 (16.02.2016)
  * improved the layout for better EMV
  * added buffer capacitor for dc converter
  * added filter capacitor close to ESP8266
  
* 1.1 (01.02.2016)
  * connected ADC 
  * some layout improvements

# Parts
- 1x ESP8266, ESP-12 format
- 1x XM1584 Power converter (set to 3.3v!)
- 5x IRLZ44N Mosfet (logic level gate threshold)
- 11x 10k resistors, 0805 (R1 - R11)
- 1x 1k resistors, 0805 (R12)
- 1x 330 µF Elko RM 2.5 mm (C1) 
- 1x 100 µF Elko RM 2.5 mm (C3)
- 1x 100 nF capacitor 0805(C2)
- 3x 5,08mm 2pin terminal block
- 1x 5,08mm 3pin terminal block
- 1x 2,54mm 4pin header
- 2x Micro SMD Tact Switch 2 pin 3*6*2.5 mm (optional)

# Assembly
Assembly of the PCB Board is straight forward, solder all parts to the PCB.

__Caution :__ before soldering the esp module to the PCB, set the output voltage of XM1584 converter  to 3.3v

### Recommended steps
- Start with soldering the smd resistors
- __Ensure the output voltage of XM1584 converter is 3.3v before continuing__. 
- Solder the XM1584 Power Board 
- Solder ESP8266 Module 
- Optional: solder SMD Tact Switch
- Solder Elkos
- Solder Terminal Blocks, 4pin header 
- Solder FETs

# Firmware
Firmware is still work in progress.

Latest can be found here:
https://github.com/patrickjahns/esp_rgbww_controller_fw

# Modifying
The schematic and board files are compatible with eagle 7.2+

## Ideas
Here are some ideas for future revisions
- see if we can clear some GPIOs and provide them via PIN Header for other enhancements (i.e. IR / Rotary Controller) 
- change layout for VCC/GND to be on the left side
- ~~connect ADC to detect power failure~~

# Resources
* [ESP RGB Project](https://github.com/RiRomain/esp-dimmer-hardware)
* [H801 Wifi Controller Hack](http://chaozlabs.blogspot.de/2015/08/esp8266-in-wild-wifi-led-controller-hack.html)

# Thread in Fhem Forum
* [Entwicklung/Sammelbestellung RGBWW Wifi Led Controller](https://forum.fhem.de/index.php/topic,48918.msg)

# Credits
Thanks to RiRomain for his excellent documentated [ESP RGB Project](https://github.com/RiRomain/esp-dimmer-hardware)

esp_rgbww_controller

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