4 layers104.4 × 50.9 mm
ChristmasLight
bamnet/village
I have a collection of 1-2 dozen Department 56 lighted Christmas houses. The default lighting solution has a big problem though: a house is either lit or not.
56 partsApache-2.0
4 layers
kicad_learning
- Copper layers
- 4
- Thickness
- 1.58 mm
- Parts
- 42
- Nets
- 57
- Pads
- 195
- Tracks, vias
- 115, 26
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 2 Jun 2026
- Updated
- 5 Jun 2026
Overview
ESP32 is an open-source printed circuit board by lhaquoc, from the lhaquoc/kicad_learning repository on GitHub. It is a 4-layer board with 42 parts on 57 nets, routed with 115 tracks and 26 vias.
It is built around the ESP32-S3-WROOM-1-N16, SI7021-A20-GM and LM1117DT-1.8, with the USBLC6-2SC6 and BLM21PG220SN1 among its other parts. Its parts include 11 resistors, 8 capacitors, 6 diodes, 4 ICs and 4 connectors. It belongs with the ESP32 boards of this library.
Main components
5
ESP32-S3-WROOM-1-N16
SMD,25.5x18mm-103.5dBm -40℃~+85℃ 2.4GHz 20.5dBm 355mA 3V~3.6V 95mA Bluetooth5.0 ESP32-S3 On-board PCB Antenna UART、SPI、I2C、GPIO、I2S、USB SMD,25.5x18mm WiFi Modules ROHSEspressif SystemsWiFi Modules
SI7021-A20-GM
DFN-6-EP(3x3)DFN-6-EP(3x3) Temperature and Humidity Sensor ROHSSilicon LabsTemperature And Humidity Sensor
LM1117DT-1.8
TO-252-30℃~+125℃ 1 1.2V@(800mA) 1.8V 15V 5mA 75dB@(120Hz) 800mA Fixed Positive TO-252-3 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
USBLC6-2SC6
SOT-23-60.35pF、0.8pF 100nA 150W@8/20us 15V 2 5V 6A@8/20us 6V ESD SOT-23-6 ESD and Surge Protection (TVS/ESD) ROHSUMWESD And Surge Protection (TVS/ESD)
BLM21PG220SN1
08051 22Ω@100MHz 6A 9mΩ ±25% 0805 Ferrite Beads ROHSMurataFerrite Beads
README
README.mdkicad_learning
Parts
42| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | 1k | Morten_Library:R_0402_1005Metric | R5, R6, R7, R9 |
| 4 | MountingHole | Morten_Library:MountingHole_3.2mm_M3 | H1, H2, H3, H4 |
| 3 | 100n | Morten_Library:C_0402_1005Metric_Pad0.74x0.62mm_HandSolder | C1, C3, C8 |
| 3 | 10k | Morten_Library:R_0402_1005Metric | R1, R2, R8 |
| 3 | ESD3.3 | Diode_SMD:D_SOD-923 | D2, D4, D6 |
| 2 | 1u | Morten_Library:C_0603_1608Metric | C4, C7 |
| 2 | 22u | Morten_Library:C_0603_1608Metric | C5, C6 |
| 2 | 2k2 | Morten_Library:R_0402_1005Metric | R10, R11 |
| 2 | 5.1k | Morten_Library:R_0402_1005Metric | R3, R4 |
| 1 | 10u | Morten_Library:C_0603_1608Metric | C2 |
| 1 | 1N5817 | Morten_Library:D_SOD-123 | D1 |
| 1 | BLM21PG220 | Inductor_SMD:L_0805_2012Metric | FB1 |
| 1 | BOOT | Morten_Library:SW_SPST_B3U-1000P | SW2 |
| 1 | CLV1L-FKB | Morten_Library:LED_Cree-PLCC4_3.2x2.8mm_CCW | D5 |
| 1 | Conn_01x04 | Connector_JST:JST_SH_SM04B-SRSS-TB_1x04-1MP_P1.00mm_Horizontal | J4 |
| 1 | Conn_02x03_Odd_Even | Connector_PinHeader_2.54mm:PinHeader_2x03_P2.54mm_Vertical | J3 |
| 1 | ESP32-S3-WROOM-1-N16 | Morten_Library:ESP32-S3-WROOM-1 | U2 |
| 1 | GREEN | Morten_Library:LED_0603_1608Metric | D3 |
| 1 | LM1117DT-1.8 | Package_TO_SOT_SMD:SOT-223-3_TabPin2 | U3 |
| 1 | Pin_2x5 | Connector_PinHeader_2.54mm:PinHeader_2x05_P2.54mm_Vertical | J2 |
| 1 | Polyfuse 1A | Morten_Library:Fuse_1206_3216Metric | F1 |
| 1 | RESET | Morten_Library:SW_SPST_B3U-1000P | SW1 |
| 1 | Si7021-A20 | Morten_Library:DFN-6-1EP_3x3mm_P1mm_EP1.5x2.4mm | U4 |
| 1 | USBLC6-2SC6 | Package_TO_SOT_SMD:SOT-23-6 | U1 |
| 1 | USB_C_Receptacle_USB2.0 | Morten_Library:USB_C_Receptacle_HRO_TYPE-C-31-M-12 | J1 |
| 1 | USER_SW | Morten_Library:SW_Tactile_SPST_Angled_PTS645Vx31-2LFS | SW3 |
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Questions
What parts does the ESP32 use?
42 parts, built around the ESP32-S3-WROOM-1-N16, SI7021-A20-GM, LM1117DT-1.8 and USBLC6-2SC6. 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 KiCad files?
From the lhaquoc/kicad_learning repository on GitHub, at the commit this page was made from: the board is ESP32-board/ESP32.kicad_pcb and its schematic ESP32-board/ESP32.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the ESP32 design in my own project?
Its repository states no licence, so its author keeps all rights: ask lhaquoc before reusing the design.