2 layers40 × 30 mm
Esphome xiao base
0rax/esphome-xiao-base
XIAO base board PCB & configuration for ESPHome based sensors.
10 parts5CERN-OHL-S-2.0
2 layers88.4 × 58.6 mm
Hackpad
RishitJain-dev/HackpadA small macropad for Hack Club with a OLED display, rotary encoder dial and 6 Keys
- Size
- 88.4 × 58.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 18
- Nets
- 20
- Pads
- 58
- Tracks, vias
- 83, 9
- Pours
- 1
- Routed
- Yes
- KiCad
- KiCad 10.0 (file 20260206)
- Created
- 29 Aug 2026
- Updated
- 26 Sep 2026
Overview
Hackpad is an open-source printed circuit board by RishitJain-dev, from the RishitJain-dev/Hackpad repository on GitHub. It is a 2-layer board of 88.4 × 58.6 mm with 18 parts on 20 nets, routed with 83 tracks and 9 vias.
It is built around the XIAO ESP32C3. Its parts include 7 switches, 6 diodes and 2 ICs. It belongs with the keyboards and input and lEDs and displays boards and the ESP32 and RISC-V boards of this library.
Main components
1README
README.mdHackpad
A custom 6-key mechanical Macropad with rotary encoder, OLED screen and fully programmable shortcuts for your workflow.
1. Designing the macropad - 20 minutes
I used Figma to create initial designs before designing the PCB and schematic
2. Designing the schematic - 30 minutes
Components:
-ER_OLEDM0.91_1x-I2C
-RotaryEncoder_Switch_MP
-XIAO_ESP32C3
-Cherry MX Switches
-1N4001 Diode
3. Designing the PCB - 1 hour 30 minutes
I used KiCad to design the PCB, routing traces, and linking 3D models to each footprint to create a final 3D render of the PCB
4. Designing the CAD - 1 hour 18 minutes
I used Onshape to design the CAD, splitting the casing into 3 pieces, the body, top and bottom, all connected by nuts and bolts, and keycaps for the switches and a knob for the rotary encoder
4. Building the Macropad - 2 hours
I built and soldered the macropad in real life after waiting for 3 weeks to get the parts
Bill of Materials
6x Cherry MX Switches
6x Keycaps any colour (preferably black)
1x EC11 Rotary Encoder with switch and MP pins
1x Seeed XIAO RP2040
4x M3 Nut and Bolt, 2cm, Low profile top
4x M3 Spacers, 3mm diameter, 0.6cm, circular, non-threaded
1 Case (3 printed parts)
Parts
18| Qty | Value | Footprint | References |
|---|---|---|---|
| 6 | 1N4001 | Diode_THT:D_DO-41_SOD81_P10.16mm_Horizontal | D1, D2, D3, D4, D5, D6 |
| 6 | SW_Push | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_Plate | SW1, SW2, SW3, SW4, SW5, SW7 |
| 3 | MountingHole_2.2mm_M2 | MountingHole:MountingHole_2.2mm_M2 | M2, M2, M2 |
| 1 | ER_OLEDM0.91_1x-I2C | Display:ER_OLEDM0.91_1x-I2C | U2 |
| 1 | RotaryEncoder_Switch_MP | Rotary_Encoder:RotaryEncoder_Alps_EC11E-Switch_Vertical_H20mm_CircularMountingHoles | SW6 |
| 1 | XIAO_ESP32C3 | footprints:MODULE_XIAO_ESP32C3 | U1 |
Questions
How big is the Hackpad PCB?
It measures 88.4 × 58.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Hackpad use?
18 parts, built around the XIAO ESP32C3. 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 Hackpad KiCad files?
From the RishitJain-dev/Hackpad repository on GitHub, at the commit this page was made from: the board is PCB/Hackpad.kicad_pcb and its schematic PCB/Hackpad.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Hackpad design in my own project?
Its repository states no licence, so its author keeps all rights: ask RishitJain-dev before reusing the design.
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