hasenpups / wled_esp32_controller

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This work is licensed under a Creative Commons Attribution-NonCommercial-ShareAlike 4.0 International License.

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WLED ESP32 Controller

This board is designed to connect addressable LEDs/Neopixel strips and handle them with the WLED firmware. Other firmware can be used as well.

Features

• 5V/GND connector for input voltage
• 4 output lines for LED data or relais
• level shifter for all 4 outputs (3.3V -> 5V )
• resistor for data lines
• support for LED strips with clock signal
• connector for microphone sensor or button input (ADC1, GND, 3.3V, IN1, GND, IN2, GND)
• connector to flash firmware with CP2104 (3.3V, TX, RX, GND)

BOM

• 1 x WLED ESP32 Controller presoldered from https://jlcpcb.com/

Comment	Designator	Footprint	LCSC
10µ	C1,C3	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C15850
47µ	C2	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C16780
100n	C4,C5	Capacitor_SMD:C_0805_2012Metric_Pad1.18x1.45mm_HandSolder	C49678
MountingHole	H1,H2	MountingHole:MountingHole_3.2mm_M3_DIN965
Conn_01x06_Female	J1	TerminalBlock:TerminalBlock_bornier-6_P5.08mm
Conn_01x04_Female	J2	Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical
Conn_01x07_Female	J3	Connector_PinHeader_2.54mm:PinHeader_1x07_P2.54mm_Vertical
Jumper_NO_Small	JP1,JP2,JP3,JP4	Jumper:SolderJumper-2_P1.3mm_Open_RoundedPad1.0x1.5mm
330	R1,R2,R3,R4	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	C17630
10K	R5,R6	Resistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolder	C17414
Reset	SW1	Button_Switch_SMD:SW_SPST_CK_RS282G05A3	C354943
Flash	SW2	Button_Switch_SMD:SW_SPST_CK_RS282G05A3	C354943
AMS1117-3.3	U1	Package_TO_SOT_SMD:SOT-223-3_TabPin2	C6186
ESP32-WROOM-32	U2	RF_Module:ESP32-WROOM-32	C82899
SN74AHCT125D	U3	WLED_ESP32:SOIC127P600X175-14N	C155176

• 3 x 2-pin screw terminal (https://www.amazon.de/gp/product/B08JB6SSCJ)
• 1 x 4-pin header male
• 1 x 7-pin header male

Wiring diagram

• https://github.com/Hasenpups/WLED_ESP32_Controller/blob/main/WLED_ESP32_Controller.pdf

Software

• WLED: https://github.com/Aircoookie/WLED/releases
• Sound Reactive WLED: https://github.com/atuline/WLED/releases

How to flash software

• Connect USB-UART bridge to 3.3V, TX, RX and GND
  • https://de.aliexpress.com/item/1005002689033373.html
  • https://www.makershop.de/module/kommunikation-module/micro-usb-uart-ttl/
• Press and hold "Flash" button
• Press "Reset" button and release
• Release "Flash" button
• Open https://install.wled.me/
• Click "Install"
• Select COM port of USB-UART bridge
• Wait until finished

WLED configuration

• OUT1 - IO16
• OUT2 - IO17
• OUT3 - IO18
• OUT4 - IO19
• Microphone input - IO36
• Button input 1 - IO26
• Button input 2 - IO27

Case

• https://www.prusaprinters.org/prints/124223-wled-controller-base-housing
• https://www.printables.com/model/163438-housing-for-esp32-wled-controller