4 layers299 × 127 mm
2 layers
Led sign
3nt3/led-sign- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 58
- Nets
- 169
- Pads
- 409
- Tracks, vias
- 47, 6
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 27 Dec 2025
- Updated
- 4 Jan 2026
Overview
Led sign is an open-source printed circuit board by 3nt3, from the 3nt3/led-sign repository on GitHub. It is a 2-layer board with 58 parts on 169 nets, routed with 47 tracks and 6 vias.
It is built around the LP5907MFX-3.3 and TP4056-42-ESOP8. Its parts include 28 capacitors, 11 resistors, 7 ICs, 3 diodes and 2 connectors. It belongs with the nRF52 and nRF5x boards of this library.
Main components
2
LP5907MFX-3.3
SOT-23-5-40℃~+125℃@(Tj) 1 10uVrms 12uA 250mA 250mV@(250mA) 3.3V 5.5V 82dB@(1kHz) Fixed Positive Short Circuit Protection、Thermal shutdown、Enable control、Input under-voltage protection、Output discharge SOT-23-5 Voltage Regulators - Linear, Low Drop Out (LDO) Regulators ROHSTexas InstrumentsVoltage Regulators - Linear, Low Drop Out (LDO) Regulators
TP4056-42-ESOP8
ESOP-8-40℃~+85℃ 1 1A 2uA 4.2V 4V~8V Charging IC Lithium Battery Support ESOP-8 Battery Management ROHSTOPPOWERBattery Management
Parts
58| Qty | Value | Footprint | References |
|---|---|---|---|
| 10 | 100n | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C8, C9, C12, C14, C15, C16, C22, C25, C28, C31 |
| 7 | 1u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C3, C4, C11, C21, C24, C27, C30 |
| 6 | 10u | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C1, C2, C23, C26, C29, C32 |
| 4 | 10K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R6, R7, R8, R9 |
| 4 | LP5024 | 3nt3:LP5024 | U6, U7, U8, U9 |
| 2 | 12p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C5, C6 |
| 2 | 1K | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R4, R5 |
| 2 | 1M | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R10, R11 |
| 2 | 5K1 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R2, R3 |
| 2 | LED | kicad-lib:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder_Triangle | D1, D2 |
| 2 | SW_Push | easyeda2kicad:SW-SMD_4P-L5.1-W5.1-P3.70-LS6.5-TL_H1.5 | SW1, SW2 |
| 1 | 0.8p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C13 |
| 1 | 100p | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C10 |
| 1 | 1K1 | Resistor_SMD:R_0603_1608Metric_Pad0.98x0.95mm_HandSolder | R1 |
| 1 | 3n9 | Inductor_SMD:L_0603_1608Metric_Pad1.05x0.95mm_HandSolder | L1 |
| 1 | 4u7 | Capacitor_SMD:C_0603_1608Metric_Pad1.08x0.95mm_HandSolder | C7 |
| 1 | Battery | Connector_JST:JST_SH_SM02B-SRSS-TB_1x02-1MP_P1.00mm_Horizontal | BT1 |
| 1 | Conn_01x03_Socket | Connector_JST:JST_SH_SM03B-SRSS-TB_1x03-1MP_P1.00mm_Horizontal | J2 |
| 1 | Crystal_GND24_Small | Crystal:Crystal_SMD_3225-4Pin_3.2x2.5mm | Y1 |
| 1 | D_Schottky | Diode_SMD:D_0603_1608Metric_Pad1.05x0.95mm_HandSolder | D4 |
| 1 | LP5907MFX-3.3 | Package_TO_SOT_SMD:SOT-23-5 | U3 |
| 1 | PCB Antenna | RF_Antenna:Texas_SWRA117D_2.4GHz_Left | AE1 |
| 1 | PMOS | Package_TO_SOT_SMD:SOT-23_Handsoldering | Q1 |
| 1 | TP4056-42-ESOP8 | Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm_ThermalVias | U2 |
| 1 | USB_C_Receptacle | easyeda2kicad:USB-C-SMD_MC-311D | J1 |
| 1 | nRF52832-QFxx | Package_DFN_QFN:QFN-48-1EP_6x6mm_P0.4mm_EP4.6x4.6mm | U1 |
Questions
What parts does the Led sign use?
58 parts, built around the LP5907MFX-3.3 and TP4056-42-ESOP8. 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 Led sign KiCad files?
From the 3nt3/led-sign repository on GitHub, at the commit this page was made from: the board is pcb/led-sign/led-sign.kicad_pcb and its schematic pcb/led-sign/led-matrix.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Led sign design in my own project?
Its repository states no licence, so its author keeps all rights: ask 3nt3 before reusing the design.
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