2 layers164 × 100 mm
2 layers73.7 × 57.1 mm
LightDudu4Lila
AleBerta311/LightPCBA simple PCB schematic for USB LED light that turns on when it's dark.
- Size
- 73.7 × 57.1 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 36
- Nets
- 47
- Pads
- 134
- Tracks, vias
- 234, 34
- Pours
- 4
- Routed
- Yes
- KiCad
- KiCad 7 (file 20221018)
- Created
- 15 Jan 2025
- Updated
- 2 Apr 2026
Overview
LightDudu4Lila is an open-source printed circuit board by AleBerta311, from the AleBerta311/LightPCB repository on GitHub, published under the GPL-3.0 licence. It is a 2-layer board of 73.7 × 57.1 mm with 36 parts on 47 nets, routed with 234 tracks and 34 vias.
It is built around the STM32F103C8T6 and AMS1117CD-3.3. Its parts include 14 capacitors, 6 resistors, 3 ICs, 3 diodes and 2 connectors. It belongs with the STM32 boards of this library.
Main components
2
STM32F103C8T6
LQFP-48(7x7)-40℃~+85℃ 12bit 20KB 2V~3.6V 32 Bit 37 64KB 72MHz ARM Cortex-M3 Built-in FLASH LQFP-48(7x7) Microcontrollers (MCU/MPU/SOC) ROHSSTMicroelectronicsMicrocontrollers (MCU/MPU/SOC)
AMS1117CD-3.3
TO-252-40℃~+125℃ 0.003%Vout 1 1.1V@(800mA) 15V 1A 3.3V 5mA 72dB@(120Hz) Fixed Over Current Protection、Short Circuit Protection、Thermal shutdown Positive TO-252 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSAdvanced Monolithic SystemsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.md
This PCB uses USB voltage to control a sensor that turns light on when its dark. The switch and debug pins are used to transfer the code for the microprocessor which controls the sensor and turns on/off the light.
Parts
36| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 100n | Capacitor_SMD:C_0402_1005Metric | C1, C2, C3, C4, C9 |
| 4 | MountingHole | MountingHole:MountingHole_2.2mm_M2 | H1, H2, H3, H4 |
| 3 | 22u | Capacitor_SMD:C_0805_2012Metric | C12, C13, C14 |
| 2 | 100R | Resistor_SMD:R_1206_3216Metric | R5, R6 |
| 2 | 1k5 | Resistor_SMD:R_0402_1005Metric | R2, R3 |
| 2 | 1u | Capacitor_SMD:C_0603_1608Metric | C7, C8 |
| 2 | 8p | Capacitor_SMD:C_0402_1005Metric | C10, C11 |
| 2 | LED | LED_SMD:LED_0805_2012Metric | D2, D3 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R1 |
| 1 | 10n | Capacitor_SMD:C_0402_1005Metric | C6 |
| 1 | 10u | Capacitor_SMD:C_0603_1608Metric | C5 |
| 1 | 120R | Inductor_SMD:L_0603_1608Metric | FB1 |
| 1 | 16 MHz 8pF | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | X1 |
| 1 | 50k | Resistor_SMD:R_0805_2012Metric | R4 |
| 1 | ALS-PDIC15-21B_TR8 | SamacSys_Parts:ALSPDIC1521BTR8 | IC1 |
| 1 | AMS1117CD-3.3 | Package_TO_SOT_SMD:TO-252-3_TabPin2 | U3 |
| 1 | Conn_01x04_Pin | Connector:FanPinHeader_1x04_P2.54mm_Vertical | J2 |
| 1 | LOGO | LOGO | G*** |
| 1 | RED | LED_SMD:LED_0603_1608Metric | D1 |
| 1 | STM32F103C8T6 | Package_QFP:LQFP-48_7x7mm_P0.5mm | U2 |
| 1 | SW_SPDT | Button_Switch_THT:SW_E-Switch_EG1224_SPDT_Angled | SW1 |
| 1 | USB_A | Connector_USB:USB_A_Molex_67643_Horizontal | J1 |
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Questions
How big is the LightDudu4Lila PCB?
It measures 73.7 × 57.1 mm and has 2 copper layers, 1.6 mm thick.
What parts does the LightDudu4Lila use?
36 parts, built around the STM32F103C8T6 and AMS1117CD-3.3. 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 LightDudu4Lila KiCad files?
From the AleBerta311/LightPCB repository on GitHub, at the commit this page was made from: the board is LightDudu4Lila.kicad_pcb and its schematic LightDudu4Lila.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the LightDudu4Lila design in my own project?
Its repository publishes it under the GPL-3.0 licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).