README.md
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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 362.5 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:
<![CDATA[]]>https://github.com/patrickjahns/esp_rgbww_controller_fw<![CDATA[]]>

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


<![CDATA[]]>ESP RGB Project<![CDATA[]]>
<![CDATA[]]>H801 Wifi Controller Hack<![CDATA[]]>


Thread in Fhem Forum


<![CDATA[]]>Entwicklung/Sammelbestellung RGBWW Wifi Led Controller<![CDATA[]]>


Credits

Thanks to RiRomain for his excellent documentated <![CDATA[]]>ESP RGB Project<![CDATA[]]>