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4 layers33.5 × 33.5 mmEsp32-led, the printed circuit board in 3D

The main goal of this project is to develop an OpenHardware board for controlling digital LED strips. The control shall be done via Homeassistant and esphome.The PCB is based around an ESP32-U4WDH microcontroller and…

Size
33.5 × 33.5 mm
Copper layers
4
Thickness
1.61 mm
Parts
29
Nets
68
Pads
181
Tracks, vias
203, 43
Pours
11
Routed
Yes
KiCad
KiCad 6 (file 20211014)
Created
23 Nov 2022
Updated
29 Jan 2023

Overview

Esp32-led is an open-source printed circuit board by t3mschm2d, from the t3mschm2d/esp32-tiny-led-controller repository on GitHub. It is a 4-layer board of 33.5 × 33.5 mm with 29 parts on 68 nets, routed with 203 tracks and 43 vias.

It is built around the ESP32-U4WDH, AMS1117-3.3 and MUN5211DW1, with the SP0503BAHTG among its other parts. Its parts include 9 capacitors, 7 resistors, 3 ICs, 3 connectors and 1 diode. It belongs with the ESP32 boards of this library.

Main components

4

README

README.md

ESP32-Tiny-LED-Controller

Overview

The main goal of this project is to develop an OpenHardware board for controlling digital LED strips. The control shall be done via Homeassistant and esphome.The PCB is based around an ESP32-U4WDH microcontroller and includes the following features:

  • 2,4GHz antenna for WLAN / Bluetooth
  • 5 pin screw terminal for external power and the LED-strip
  • USB-C connector
  • USB-to-UART converter
  • JST PH-S4B for connecting external sensors

board view

ToDos

This PCB is a work in progress. The latest design is not tested and verified.

Parts

29
QtyValueFootprintReferences
2100kResistor_SMD:R_0402_1005MetricR1, R2
2100nCapacitor_SMD:C_0402_1005MetricC3, C9
24.7uCapacitor_SMD:C_0402_1005MetricC4, C8
2MountingHole_PadMountingHole:MountingHole_2.2mm_M2_PadH1, H2
10RResistor_SMD:R_0805_2012Metric_Pad1.20x1.40mm_HandSolderR5
110nCapacitor_SMD:C_0402_1005MetricC5
110pCapacitor_SMD:C_0402_1005MetricC2
110uCapacitor_SMD:C_0402_1005MetricC7
110uCapacitor_SMD:C_0603_1608MetricC6
11kResistor_SMD:R_0402_1005MetricR3
11nInductor_SMD:L_0402_1005MetricL1
1499RResistor_SMD:R_0402_1005MetricR4
15.11KResistor_SMD:R_0402_1005MetricR7
15.11kResistor_SMD:R_0402_1005MetricR6
18pCapacitor_SMD:C_0402_1005MetricC1
1AMS1117-3.3Package_TO_SOT_SMD:SOT-223-3_TabPin2U2
1CP2102N-Axx-xQFN24Package_DFN_QFN:QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mmU1
1ESP32-U4WDHESP32-U4WDH:QFN35P500X500X90-49N-DIC1
1JST-PH-4Connector_JST:JST_PH_S4B-PH-SM4-TB_1x04-1MP_P2.00mm_HorizontalJ3
1MUN5211DW1Package_TO_SOT_SMD:SOT-363_SC-70-6Q1
1SP0503BAHTPackage_TO_SOT_SMD:SOT-143D1
1SW_PushButton_Switch_SMD:SW_SPST_B3U-1000PSW1
1Screw_Terminal_01x05TerminalBlock_Phoenix:TerminalBlock_Phoenix_MKDS-1,5-5-5.08_1x05_P5.08mm_HorizontalJ2
1USB_C_Receptacle_USB2.0Connector_USB:USB_C_Receptacle_JAE_DX07S016JA1R1500J1
1YAGEO_ANT3216LL00R2400ARF_Antenna:YAGEO_ANT3216LL00R2400AA1

Questions

How big is the Esp32-led PCB?

It measures 33.5 × 33.5 mm and has 4 copper layers, 1.61 mm thick.

What parts does the Esp32-led use?

29 parts, built around the ESP32-U4WDH, AMS1117-3.3, MUN5211DW1 and SP0503BAHTG. The full list of its parts is on this page, with links to each part's symbol and footprint where PCBKit's library has them.

Where can I download the Esp32-led KiCad files?

From the t3mschm2d/esp32-tiny-led-controller repository on GitHub, at the commit this page was made from: the board is pcb/v1.0/esp32-led.kicad_pcb and its schematic pcb/v1.0/esp32-led.kicad_sch. PCBKit opens the board in the browser, with nothing to install.

Can I use the Esp32-led design in my own project?

Its repository states no licence, so its author keeps all rights: ask t3mschm2d before reusing the design.

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