esp_rgbww_controller's Introduction

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: 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

Thread in Fhem Forum

Entwicklung/Sammelbestellung RGBWW Wifi Led Controller

Credits

Thanks to RiRomain for his excellent documentated ESP RGB Project

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esp_rgbww_controller's Issues

High Amperage use

Hi. You made an great scheme, but i want to put about 20m strip to this controller. It will take about 25 ampers, but as i understand, maximum load is 4a.

What i need to change in this scheme to use this load?
Thanks

VCC des ESP zu gering

Hi,
Ich habe eure Platine mal nachgebaut und wollte jetzt den ESP flashen...
Doch leider bekomme ich sie nicht betriebsbereit.

An den VCC und GND Stiften (3er Leiste) bekomme ich saubere 3,3v. Der Spannungsregler ist also korrekt eingestellt.
Wenn ich aber direkt an den VCC und GND pins des ESP messe, kommen nur noch knappe 0,4v an.

Kann sich das jemand erklären?
Habe ich irgendeinen Denk- oder Lötfehler?
Anbei mal Fotos des Aufbaus.

Über eine Rückmeldung würde ich mich freuen!
LG
Tobi

power pads not fully connected

I would appreciate when all pads for the power supply module were connected. When I hand soldered the first controller, the inner ground pad on the 3.3V side of my module did not quite make contact - the outer one did. Troubleshoting took a bit but eventually I routed a wire to the gnd pin on the programming header and the whole thing worked.

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