Light control
About the Light control PCB
Light control is an open source ESP32 PCB design by matthewlai, published on GitHub under the GPL-3.0 license. It is a 4-layer board measuring 59.7 × 48.3 mm, with 73 components from 24 distinct parts.
Its main chip is the ESP32-WROOM-32, from the ESP32 family. Other key parts include the AZ1117-3.3, CP2104 and DHT11. By type, the board carries 24 resistors, 14 diodes, 12 connectors, 10 transistors, 8 capacitors and 4 ICs.
From the project
Home automation
Main components on the Light control
Light control bill of materials (BOM)
73 components, 24 distinct parts — part numbers from the project's BOM.
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 1 | AZ1117-3.3 | SOT-223-3_TabPin2 | U1 |
| 1 | CP2104 | QFN-24-1EP_4x4mm_P0.5mm_EP2.6x2.6mm | U2 |
| 1 | ESP32-WROOM-32 | ESP32-WROOM-32 | U3 |
| 1 | DHT11 | Aosong_DHT11_5.5x12.0_P2.54mm | U4 |
| 2 | C2150 Q_NPN_BEC | SOT-23 | Q1, Q2 |
| 1 | C20917 Q_NMOS_GSD | SOT-23 | Q3 |
| 7 | C20917 Q_NMOS_GDS | SOT-23 | Q4, Q5, Q6, Q7, Q8, Q9, Q10 |
| 10 | Screw_Terminal_01x02 | TerminalBlock_Phoenix_PT-1,5-2-3.5-H_1x02_P3.50mm_Horizontal | J1, J3, J4, J5, J6, J7, J8, J9 +2 |
| 1 | USB_B_Micro | USB_Micro-B_Molex-105017-0001 | J2 |
| 1 | Conn_01x03 | JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | J12 |
| 1 | SW_Push | TS-1187A | SW1 |
| 10 | C8598 D_Schottky | D_SOD-123 | D1, D2, D3, D4, D5, D6, D7, D8 +2 |
| 2 | C72043 Green | LED_0603_1608Metric | D11, D12 |
| 2 | C2286 Red | LED_0603_1608Metric | D13, D14 |
| 1 | 1UF 1uF | R_0402_1005Metric | C1 |
| 3 | 0.1UF 0.1uF | R_0402_1005Metric | C2, C6, C8 |
| 1 | 4.7UF 4.7uF | R_0603_1608Metric | C3 |
| 1 | 1UF 1uF | R_0603_1608Metric | C4 |
| 1 | 22UF 22uF | R_0603_1608Metric | C5 |
| 1 | 10UF 10uF | R_0402_1005Metric | C7 |
Show 4 more
| Qty | Part | Footprint | Refs |
|---|---|---|---|
| 12 | 10KR 10kR | R_0402_1005Metric | R1, R2, R3, R16, R17, R18, R19, R20 +4 |
| 8 | 100R | R_0402_1005Metric | R4, R5, R6, R7, R8, R9, R10, R11 |
| 2 | 47R | R_0402_1005Metric | R12, R13 |
| 2 | 150R | R_0402_1005Metric | R14, R15 |
Light control design files
The KiCad project lives in the matthewlai/WiredHut repository on GitHub; these links point at the commit this page was built from.
Light control: common questions
What microcontroller does the Light control use?
The Light control is built around the ESP32-WROOM-32, from the ESP32 family.
How big is the Light control PCB?
The Light control measures 59.7 × 48.3 mm, has 4 copper layers and is 1.6 mm thick.
How many components are on the Light control?
73 components, from 24 distinct parts, with part numbers taken from the project's own BOM. The full bill of materials is listed on this page.
Where can I download the Light control design files?
From the matthewlai/WiredHut repository on GitHub, which has the KiCad layout and the BOM; the links under Design files point to each one.
Can I use the Light control design in my own project?
Yes, under the terms of its GPL-3.0 license, which matthewlai chose for the repository.
Can I test firmware for the Light control without the hardware?
Yes. HardLabs builds a simulation of the board from its netlist and BOM, so you can run and debug ESP32 firmware against it before you order a PCB.
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