2 layers68.6 × 53.3 mm
2 layers56 × 65 mm
OttoPi10-RPi3A HAT
ytani01/OttoPi2Otto like Robot for Raspberry Pi Zero
- Size
- 56 × 65 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 51
- Nets
- 68
- Pads
- 220
- Tracks, vias
- 343, 0
- Pours
- 2
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 4 May 2019
- Updated
- 12 Nov 2025
Overview
OttoPi10-RPi3A HAT is an open-source printed circuit board by ytani01, from the ytani01/OttoPi repository on GitHub. It is a 2-layer board of 56 × 65 mm with 51 parts on 68 nets, routed with 343 tracks and 0 vias.
It is built around the 2SK4017(Q). Its parts include 7 resistors, 2 capacitors, 2 diodes, 1 transistor and 1 switch.
Main components
1README
README.mdOttoPi: Otto DIY like biped robot for Raspberry Pi
see github pages
Power ON/OFF Button
Power ON button
GPIO 3 -> SW -> GND
Shutdown button
GPIO 4 -> SW -> GND GPIO 21 -> R(1K ohm) -> LED -> GND
dtoverlay=gpio-shutdown,gpio_pin=4
dtoverlay=gpio-poweroff,gpiopin=21,active_low=1Parts
51| Qty | Value | Footprint | References |
|---|---|---|---|
| 11 | PINHEAD-MA04-1 | I2C1, I2C2, I2C3, MTR_IN0, MTR_OUT0, SV1, SV2, SV3, SV4, SV5, SV6 | |
| 6 | PINHEAD-MA02-1 | JP1, JP2, OFF0, ON0, SP+0, VOL0 | |
| 4 | 10K | 0204_7_334 | R3, R4, R5, R6 |
| 3 | PINHEAD-MA01-1 | IO4, IO10, IO21 | |
| 2 | LED3MM_259 | LED1, LED2 | |
| 2 | RPI-PIN | RPI1, RPI2 | |
| 2 | 1K | 0204_7_334 | R1, R8 |
| 1 | PINHEAD-MA03-1 | MODE0 | |
| 1 | PINHEAD-MA03-1_30941153 | NEOPIXEL0 | |
| 1 | DCDC-SX1308-MOD1 | DCDC2 | |
| 1 | dummyfp3 | UNK_HOLE_3 | |
| 1 | DRV8835MOD | MD1 | |
| 1 | TP4056MOD1 | CHG1 | |
| 1 | dummyfp0 | UNK_HOLE_0 | |
| 1 | dummyfp2 | UNK_HOLE_2 | |
| 1 | SW3-1 | SW1 | |
| 1 | dummyfp1 | UNK_HOLE_1 | |
| 1 | JST-PH2 | BAT0+0 | |
| 1 | C025-024X044_334 | C1 | |
| 1 | 0.1uF | C025-024X044_334 | C2 |
| 1 | 2SK4017 | MOSFET-1_30941153 | Q1 |
| 1 | 330 | 0204_7_334 | R7 |
| 1 | 5V | PINHEAD-MA02-1 | +5V0 |
| 1 | AMP | PAM8012MOD-A | AMP0 |
| 1 | AMP | PINHEAD-MA01-1 | AUD0 |
| 1 | BAT+ | PINHEAD-MA02-1 | BAT+0 |
| 1 | BAT0+ | PINHEAD-MA02-1 | BAT0 |
| 1 | MCP3425MOD | MCP3425MOD_30941153 | ADC1 |
Questions
How big is the OttoPi10-RPi3A HAT PCB?
It measures 56 × 65 mm and has 2 copper layers, 1.6 mm thick.
What parts does the OttoPi10-RPi3A HAT use?
51 parts, built around the 2SK4017(Q). 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 OttoPi10-RPi3A HAT KiCad files?
From the ytani01/OttoPi repository on GitHub, at the commit this page was made from: the board is pcb/OttoPi10-RPi3A-HAT/KiCAD/OttoPi10-RPi3A-HAT.kicad_pcb and its schematic pcb/OttoPi10-RPi3A-HAT/KiCAD/OttoPi10-RPi3A-HAT.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the OttoPi10-RPi3A HAT design in my own project?
Its repository states no licence, so its author keeps all rights: ask ytani01 before reusing the design.
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