2 layers156.2 × 168.9 mm
LPC176x MultiFunction
RobertPHeller/RPi-RRCircuits
A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
236 parts24
2 layers52 × 86 mm
OctalLEDDriver
RobertPHeller/RPi-RRCircuits24A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
- Size
- 52 × 86 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 44
- Nets
- 50
- Pads
- 147
- Tracks, vias
- 473, 24
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 18 Dec 2016
- Updated
- 18 Jan 2026
Overview
OctalLEDDriver is an open-source printed circuit board by RobertPHeller, from the RobertPHeller/RPi-RRCircuits repository on GitHub. It is a 2-layer board of 52 × 86 mm with 44 parts on 50 nets, routed with 473 tracks and 24 vias.
Its parts include 32 resistors and 4 transistors. It belongs with the ESP32 boards of this library.
README
16LEDDriver23017SMD/README.md16LEDDriver23017SMD
This is a SMD variant of 16DriverOutputHAT.
Parts
44| Qty | Value | Footprint | References |
|---|---|---|---|
| 8 | 10K Ohms | R4 | R2, R6, R10, R14, R18, R22, R26, R30 |
| 8 | 150 Ohms | R4 | R4, R8, R12, R16, R20, R24, R28, R32 |
| 8 | 15K Ohms | R4 | R1, R5, R9, R13, R17, R21, R25, R29 |
| 8 | 2K Ohms | R4 | R3, R7, R11, R15, R19, R23, R27, R31 |
| 4 | RPi_Hat:RPi_Hat_Mounting_Hole | , , , | |
| 4 | MPQ6002 | DIP-14__300 | Q1, Q2, Q3, Q4 |
| 2 | LED Power (5V) | ScrewTerm2.54-2 | T2, T2 |
| 1 | GPIO (3.3V) | ScrewTerm_2.54-10 | T1 |
| 1 | LEDs | ScrewTerm2.54-9 | T3 |
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Questions
How big is the OctalLEDDriver PCB?
It measures 52 × 86 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OctalLEDDriver use?
44 parts. 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 OctalLEDDriver KiCad files?
From the RobertPHeller/RPi-RRCircuits repository on GitHub, at the commit this page was made from: the board is OctalLEDDriver/OctalLEDDriver.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the OctalLEDDriver design in my own project?
Its repository states no licence, so its author keeps all rights: ask RobertPHeller before reusing the design.