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 layers65 × 56 mm
16DriverOutputHAT
RobertPHeller/RPi-RRCircuits24A collection of circuit designs for various MCUs, not just Raspberry Pis relating to Model Railroading
- Size
- 65 × 56 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 20
- Nets
- 62
- Pads
- 185
- Tracks, vias
- 192, 33
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 3
- Created
- 18 Dec 2016
- Updated
- 18 Jan 2026
Overview
16DriverOutputHAT is an open-source printed circuit board by RobertPHeller, from the RobertPHeller/RPi-RRCircuits repository on GitHub. It is a 2-layer board of 65 × 56 mm with 20 parts on 62 nets, routed with 192 tracks and 33 vias.
It is built around the MCP23017-E/SS. Its parts include 4 connectors, 3 ICs and 1 capacitor. It belongs with the ESP32 boards of this library.
Main components
1README
16LEDDriver23017SMD/README.md16LEDDriver23017SMD
This is a SMD variant of 16DriverOutputHAT.
Parts
20| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | RPi_Hat:RPi_Hat_Mounting_Hole | H1, H2, H3, H4 | |
| 2 | 1.5K Ohms | DIP-16__300 | RP1, RP2 |
| 2 | CA B CK | 3PosJumper | JP3, JP4 |
| 2 | CK A CA | 3PosJumper | JP1, JP2 |
| 2 | TBD62X83A | DIP-18__300 | U2, U3 |
| 1 | + 12V - | ScrewTerm2.54-2 | T1 |
| 1 | .1 uf | C1 | C1 |
| 1 | 0 1 2 | pin_array_3x2 | P3 |
| 1 | 10K Ohms | SIL-5 | RR1 |
| 1 | A7 A6 A5 A4 A3 A2 A1 A0 C | ScrewTerm_2.54-9 | P1 |
| 1 | C B0 B1 B2 B3 B4 B5 B6 B7 | ScrewTerm_2.54-9 | P2 |
| 1 | MCP23017 | DIP-28__300 | U1 |
| 1 | RPi_GPIO | RPi_Hat:Pin_Header_Straight_2x20 | J0 |
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Questions
How big is the 16DriverOutputHAT PCB?
It measures 65 × 56 mm and has 2 copper layers, 1.6 mm thick.
What parts does the 16DriverOutputHAT use?
20 parts, built around the MCP23017-E/SS. 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 16DriverOutputHAT KiCad files?
From the RobertPHeller/RPi-RRCircuits repository on GitHub, at the commit this page was made from: the board is 16DriverOutputHAT/16DriverOutputHAT.kicad_pcb. PCBKit opens the board in the browser, with nothing to install.
Can I use the 16DriverOutputHAT design in my own project?
Its repository states no licence, so its author keeps all rights: ask RobertPHeller before reusing the design.