4 layers61 × 46 mm
PD PowerSupply
zainahm3d/PDSupply-Solo-PCB
Dual channel USB PD power supply with bluetooth and configurable voltages
83 parts3
4 layers53.3 × 63.5 mm
Board lights
etanase/board-lightsSchematic for Meepo V3S Skateboard Lights
- Size
- 53.3 × 63.5 mm
- Copper layers
- 4
- Thickness
- 1.61 mm
- Parts
- 44
- Nets
- 59
- Pads
- 170
- Tracks, vias
- 100, 200
- Pours
- 29
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 13 Nov 2024
- Updated
- 13 Nov 2024
Overview
Board lights is an open-source printed circuit board by etanase, from the etanase/board-lights repository on GitHub. It is a 4-layer board of 53.3 × 63.5 mm with 44 parts on 59 nets, routed with 100 tracks and 200 vias.
It is built around the 74LVC2G17GW, LMR38025SQDRRRQ1 and LM1117LD-3.3. Its parts include 15 capacitors, 15 resistors, 5 ICs, 4 connectors and 2 diodes. It belongs with the ESP32 boards of this library.
Main components
3
74LVC2G17GW
SOT-363-40℃~+125℃ 1 1.65V~5.5V 10uA 2 24mA 24mA 5.4ns@3.3V,50pF 74LVC Schmitt trigger Unidirectional SOT-363 Buffers, Drivers, Receivers, Transceivers ROHSTECH PUBLICBuffers, Drivers, Receivers, Transceivers
LMR38025SQDRRRQ1
WSON-12-EP(3x3)-40℃~+150℃@(TJ) 1 1V~75V 2.5A 4.2V~80V 40uA 525kHz Adjustable Buck Built-in Overcurrent Protection、Light load efficient mode、Operating status indication、Cycle-by-cycle current limiting、Frequency synchronization、Hiccup current limiting、EMI optimization (spread spectrum) Step-down type Yes WSON-12-EP(3x3) DC-DC Converters ROHSTexas InstrumentsDC-DC Converters
LM1117LD-3.3
WSON-8-EP(4x4)0℃~+125℃@(Tj) 1 1.2V@(800mA) 15V 3.3V 5mA 75dB@(120Hz) 800mA 99uVrms Fixed Over Current Protection、Thermal Shutdown Positive WSON-8-EP(4x4) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
README
README.mdMeepo V3S ARGB Power & Control PCB
Schematic for Meepo V3S Skateboard Lights. Meant to power these 24V WS2811 COB Leds using the Meepo V3S 36V Battery and wled firmware.
https://github.com/user-attachments/assets/10e10ca3-55f4-4bfa-9f18-f33567d93a93
Known issues
This was my first real PCB project, so there were many (easily fixable) issues, but it still works as-is.
- Did not pull EN high (whoops). Bridge the two upper pins of the connector after the board is powered on.
- ESP-Prog connector is mirrored (whoops again).
- The output capacitor I planned to use did not support 24V. There is a capacitor with the same footprint and lower capacitance but higher max voltage that I used instead. Let me know if you want the full BOM.
- There is no power switch. I intented to use an inline waterproof switch on the connector, but it would have been nice to be able to disable the board without unplugging it or pulling the fuse.
- There are no holes (or space for them) to connect it to a mount.
- Level shifter did not work. I just bridged the pins and it works fine.
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 5 | 0.1uF | Capacitor_SMD:C_0402_1005Metric | C3, C5, C6, C13, C14 |
| 3 | 470 | Resistor_SMD:R_0402_1005Metric | R3, R6, R8 |
| 2 | 100k | Resistor_SMD:R_0402_1005Metric | R9, R12 |
| 2 | 10K | Resistor_SMD:R_0402_1005Metric | R4, R5 |
| 2 | 10uF | Capacitor_Tantalum_SMD:CP_EIA-3216-18_Kemet-A | C8, C10 |
| 2 | 2.2uF | Capacitor_SMD:C_0805_2012Metric | C11, C12 |
| 1 | 0.1uF | Capacitor_SMD:C_0603_1608Metric | C2 |
| 1 | 1.25A | KiCad stuff:FUSE_65600001009_LTF | F1 |
| 1 | 1000uF | KiCad stuff:CAP_EEEFT1C102AP | C9 |
| 1 | 100uF | Capacitor_Tantalum_SMD:CP_EIA-7343-31_Kemet-D | C7 |
| 1 | 10k | Resistor_SMD:R_0402_1005Metric | R11 |
| 1 | 10uH | KiCad stuff:IND_IHLP-3232DZ_VIS | L1 |
| 1 | 11.5k | Resistor_SMD:R_0402_1005Metric | R13 |
| 1 | 19.1k | Resistor_SMD:R_0402_1005Metric | R15 |
| 1 | 1K | Resistor_SMD:R_0402_1005Metric | R7 |
| 1 | 2.1M | Resistor_SMD:R_0402_1005Metric | R10 |
| 1 | 200k | Resistor_SMD:R_0402_1005Metric | R2 |
| 1 | 22uF | Capacitor_SMD:C_0805_2012Metric | C4 |
| 1 | 232k | Resistor_SMD:R_0402_1005Metric | R14 |
| 1 | 33uH | KiCad stuff:IND_IHLP-3232DZ_VIS | L2 |
| 1 | 4.02M | Resistor_SMD:R_0603_1608Metric | R1 |
| 1 | 4.7uF | Capacitor_SMD:C_2220_5750Metric | C1 |
| 1 | 4.7uF | Capacitor_SMD:C_1206_3216Metric | C15 |
| 1 | 74LVC2G17 | KiCad stuff:SOT95P280X145-6N | U4 |
| 1 | BLUE | LED_SMD:LED_0805_2012Metric | D2 |
| 1 | Conn_01x04_Pin | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | Conn_02x03_Counter_Clockwise | KiCad stuff:TE_1761681-1 | J5 |
| 1 | ESP32-WROOM-32E__16MB_ | KiCad stuff:XCVR_ESP32-WROOM-32E__16MB_ | U1 |
| 1 | LM1117LD-3.3 | Package_SON:WSON-8-1EP_4x4mm_P0.8mm_EP2.2x3mm | U7 |
| 1 | LMR38025SQDRRRQ1 | footprints2:WSON12_DRR_TEX | U5 |
| 1 | LMR51610XDBVR | KiCad stuff:SOT95P280X145-6N | U2 |
| 1 | RED | LED_SMD:LED_0805_2012Metric | D1 |
| 1 | Screw_Terminal_01x02 | KiCad stuff:TE_282841-2 | J2 |
| 1 | Screw_Terminal_01x03 | KiCad stuff:TE_282841-3 | J1 |
Questions
How big is the Board lights PCB?
It measures 53.3 × 63.5 mm and has 4 copper layers, 1.61 mm thick.
What parts does the Board lights use?
44 parts, built around the 74LVC2G17GW, LMR38025SQDRRRQ1 and LM1117LD-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 Board lights KiCad files?
From the etanase/board-lights repository on GitHub, at the commit this page was made from: the board is BoardLights.kicad_pcb and its schematic BoardLights.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Board lights design in my own project?
Its repository states no licence, so its author keeps all rights: ask etanase before reusing the design.
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