2 layers60 × 30 mm
Controller
google/mozc-devices
Circuit diagrams and firmware source code for Gboard DIY keyboards
11 parts3kApache-2.0
2 layers40 × 39 mm
Layered breakout pcb
narekb8/DQWalkerA Pokewalker/Tamagotchi inspired device that features Slime variants from Dragon Warrior Monsters II
- Size
- 40 × 39 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 11
- Nets
- 23
- Pads
- 45
- Tracks, vias
- 62, 8
- Routed
- Yes
- KiCad
- KiCad 8.0 (file 20240108)
- Created
- 23 Aug 2024
- Updated
- 14 May 2025
Overview
Layered breakout pcb is an open-source printed circuit board by narekb8, from the narekb8/DQWalker repository on GitHub. It is a 2-layer board of 40 × 39 mm with 11 parts on 23 nets, routed with 62 tracks and 8 vias.
Its parts include 3 connectors, 3 switches and 1 IC. It belongs with the interfaces and adapters boards and the SAM D and SAM boards of this library.
README
README.mdDQWalker
A small, Arduino based project to create a fully-fledged interactive pedometer inspired by toys from my childhood like Tamagotchis and Pokemon's Pokewalker, but instead based on the Slime from Dragon Quest and its variants from the game series. This was originally made as a birthday gift to my girlfriend which quickly spiraled out of control in its scope.
The code is essentially fully written aside from some small power-draw optimizations which cause clock errors on the MCU in their current implementations. PCB and 3D case designs are currently WIP, as I've never done designs before, but a working PCB module is complete. I hope to eventually port this over to the base SAMD21 SDK, but Arduino was used for the convenience of the available libraries (even if some of them don't work) and because this was technically my first foray into developing for microcontrollers.
Device List - "Breakout" PCB
- LSM6DSO (SparkFun Breakout Board)
- SHARP Memory LCD LS013B7DH06 (replacing the DH03 that is used on the Adafruit board)
- Seeed Studio XIAO SAMD21
- Adafruit USB-C LiPo Charger and 350mAh battery
TODO:
Implement Low Power mode to make the device more battery efficientWire up the board to work on battery with charging support (likely with a tiny Adafruit board to start)Create a functional PCB to at least wire up breakout boards to make a functioning device- Consolidate the above board to be a single, contained device (sans the XIAO)
- If I'm really feeling confident, include SAMD21 on the PCB
Parts
11| Qty | Value | Footprint | References |
|---|---|---|---|
| 4 | MOUNTINGHOLE3.0THIN | MOUNTINGHOLE_3.0_PLATEDTHIN | U$21, U$22, U$27, U$28 |
| 1 | Center | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW2 |
| 1 | Conn_01x02 | Custom:SolderWirePad_1x02_SMD_2x2mm | J2 |
| 1 | Conn_01x04 | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J4 |
| 1 | Display | Connector_PinHeader_2.54mm:PinHeader_1x09_P2.54mm_Vertical | J1 |
| 1 | Left | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW1 |
| 1 | Right | Button_Switch_THT:SW_PUSH_1P1T_6x3.5mm_H4.3_APEM_MJTP1243 | SW3 |
| 1 | SeeeduinoXIAO | MCU:Seeeduino XIAO-MOUDLE14P-2.54-21X17.8MM | U1 |
Questions
How big is the Layered breakout pcb PCB?
It measures 40 × 39 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Layered breakout pcb use?
11 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 Layered breakout pcb KiCad files?
From the narekb8/DQWalker repository on GitHub, at the commit this page was made from: the board is layered_breakout_pcb/layered_breakout_pcb.kicad_pcb and its schematic layered_breakout_pcb/layered_breakout_pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Layered breakout pcb design in my own project?
Its repository states no licence, so its author keeps all rights: ask narekb8 before reusing the design.
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