2 layers220 × 329.2 mm
Control Boards
nasa-jpl/open-source-rover
A build-it-yourself, 6-wheel rover based on the rovers on Mars!
148 parts9.8kApache-2.0
2 layers115 × 68 mm
StaircaseLight controller
Freimor/HRDW-StaircaseLightControllerA modular staircase LED light controller based on Raspberry Pico
- Size
- 115 × 68 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 98
- Nets
- 88
- Pads
- 477
- Tracks, vias
- 1,011, 174
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 21 Apr 2026
- Updated
- 10 May 2026
Overview
StaircaseLight controller is an open-source printed circuit board by Freimor, from the Freimor/HRDW-StaircaseLightController repository on GitHub, published under the MIT licence. It is a 2-layer board of 115 × 68 mm with 98 parts on 88 nets, routed with 1,011 tracks and 174 vias.
It is built around the PCA9685PW and AO4466. Its parts include 29 resistors, 21 transistors, 2 capacitors, 2 ICs and 2 connectors. It belongs with the RP2040 boards of this library.
Main components
2README
README.mdHRDW-StaircaseLightController
A modular staircase LED light controller based on Raspberry Pico
Parts
98| Qty | Value | Footprint | References |
|---|---|---|---|
| 18 | 1k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R1, R2, R14, R15, R16, R17, R18, R19, R20, R21, R22, R23, R24, R25, R26, R27 +2 |
| 16 | AO4466 | Package_SO:SOP-8_3.76x4.96mm_P1.27mm | Q6, Q7, Q8, Q9, Q10, Q11, Q12, Q13, Q14, Q15, Q16, Q17, Q18, Q19, Q20, Q21 |
| 16 | LED | LED_SMD:LED_0603_1608Metric_Pad1.05x0.95mm_HandSolder | 11, 12, 13, 14, 15, 16, 17, D2, D3, D4, D5, D6, D7, D8, D9, D10 |
| 5 | BSS138 (or AO3400) | Package_TO_SOT_SMD:SOT-23 | Q1, Q2, Q3, Q4, Q5 |
| 4 | 10k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R3, R11, R12, R13 |
| 3 | 10K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R6, R7, R8 |
| 2 | 1.8K | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R4, R5 |
| 2 | 1.8k | Resistor_SMD:R_0402_1005Metric_Pad0.72x0.64mm_HandSolder | R9, R10 |
| 1 | 1N5822 | Diode_THT:D_DO-201AD_P15.24mm_Horizontal | D1 |
| 1 | 220uF 10v | Capacitor_THT:C_Radial_D10.0mm_H12.5mm_P5.00mm | C2 |
| 1 | 330uF 50v | Capacitor_THT:C_Radial_D10.0mm_H16.0mm_P5.00mm | C1 |
| 1 | 3v3 | TestPoint:TestPoint_Pad_D2.0mm | 3V3 |
| 1 | 47uH (or 100uH from graph) | Inductor_SMD:L_7.3x7.3_H4.5 | L1 |
| 1 | 5v | TestPoint:TestPoint_Pad_D2.0mm | 5V |
| 1 | ADD_0 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP6 |
| 1 | ADD_1 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP5 |
| 1 | ADD_2 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP4 |
| 1 | ADD_3 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP3 |
| 1 | ADD_4 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP2 |
| 1 | ADD_5 | Jumper:SolderJumper-3_P2.0mm_Open_TrianglePad1.0x1.5mm_NumberLabels | JP1 |
| 1 | BOARD_IN | Connector_JST:JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical | Input |
| 1 | BOARD_OUT | Connector_JST:JST_XH_B5B-XH-A_1x05_P2.50mm_Vertical | Output |
| 1 | GND | TestPoint:TestPoint_Pad_D2.0mm | GND |
| 1 | LM2575-5.0BU | Package_TO_SOT_SMD:TO-263-5_TabPin3 | U1 |
| 1 | MountingHole_3.2mm_M3 | MountingHole:MountingHole_3.2mm_M3 | M3 |
| 1 | PCA9685PW | Package_SO:TSSOP-28_4.4x9.7mm_P0.65mm | U2 |
| 1 | PIR_1_conn | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | PIR |
| 1 | PIR_2_conn | Connector_JST:JST_XH_B3B-XH-A_1x03_P2.50mm_Vertical | PIR |
| 1 | POT_Brightness | _basic:POT_BOURNS_3306F | Brightness |
| 1 | POT_Timer | _basic:POT_BOURNS_3306F | Timer |
| 1 | PWR_IN | _conn:Conn_WAGO_2060-402 | PWR |
| 1 | PWR_SLV | _conn:Conn_WAGO_2060-402 | PWR |
| 1 | Photo | Connector_JST:JST_XH_B2B-XH-A_1x02_P2.50mm_Vertical | Light |
| 1 | ROW1 | _conn:Conn_Degson_DG141V-2.54-16P | J4 |
| 1 | ROW2 | _conn:Conn_Degson_DG141V-2.54-16P | J6 |
| 1 | RaspberryPi_Pico | Module:RaspberryPi_Pico_Common_Unspecified | A1 |
| 1 | VDD | TestPoint:TestPoint_Pad_D2.0mm | 12-24V |
The 95 most common of 98 parts.
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Questions
How big is the StaircaseLight controller PCB?
It measures 115 × 68 mm and has 2 copper layers, 1.6 mm thick.
What parts does the StaircaseLight controller use?
98 parts, built around the PCA9685PW and AO4466. 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 StaircaseLight controller KiCad files?
From the Freimor/HRDW-StaircaseLightController repository on GitHub, at the commit this page was made from: the board is KiCad/StaircaseLight_controller_v1/StaircaseLight_controller.kicad_pcb and its schematic KiCad/StaircaseLight_controller_v1/StaircaseLight_controller.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the StaircaseLight controller design in my own project?
Its repository publishes it under the MIT licence: you may reuse it on that licence's terms (keep the author's notice, and for a copyleft licence share your changes alike).