2 layers50 × 23.2 mm
Analog
hoglet67/RGBtoHDMI
Bare-metal Raspberry Pi project that provides pixel-perfect sampling of Retro Computer RGB/YUV video and conversion to HDMI
32 parts1kGPL-3.0
2 layers120.6 × 167.6 mm
VolumePad
kwint/VolumePad1Marcopad with volume control by motorized faders
- Size
- 120.6 × 167.6 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 32
- Nets
- 41
- Pads
- 138
- Tracks, vias
- 148, 0
- Routed
- Yes
- KiCad
- KiCad 6 (file 20211014)
- Created
- 5 Jan 2023
- Updated
- 28 Dec 2024
Overview
VolumePad is an open-source printed circuit board by kwint, from the kwint/VolumePad repository on GitHub. It is a 2-layer board of 120.6 × 167.6 mm with 32 parts on 41 nets, routed with 148 tracks and 0 vias.
Its parts include 6 resistors, 1 IC and 1 connector. It belongs with the AVR (ATmega, ATtiny) boards of this library.
README
README.mdVolumePad
Proof of concept of a numpad / macropad with motorized faders to control volume. Fader position is also updated if you change the volume on the pc.
The main problem it tries to solve is noisy friends in discord while you are trying to clutch a csgo match
Current state of the project; PCB needs a lot of work, the original motor driver uses to much power and the fingerprint of the faders is wrong. The microcontoller code fully works, it uses MIDI for communication with the host. On windows you can use MIDI Mixer. Haven't found a similar solution yet on linux, but shouldn't be hard to make. (The code in code/host is from before I moved the project over to MIDI).
https://user-images.githubusercontent.com/7907280/210675597-fe70f985-09b6-4afa-9840-3089a5ae9c90.mp4
TODO:
Code:
- Create code for host machine
- The capacitive button check needs work, might be electrical related
- Clean up
Electrical
- Use newer motor driver
- Fix footprint of faders
- I think something is wrong with the capacitive button wiring
Parts
32| Qty | Value | Footprint | References |
|---|---|---|---|
| 12 | MX-LED | Button_Switch_Keyboard:SW_Cherry_MX_1.00u_PCB | MX1, MX2, MX3, MX4, MX5, MX6, MX7, MX8, MX9, MX10, MX11, MX12 |
| 4 | 200 | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R3, R4, R5, R6 |
| 2 | 5M | Resistor_THT:R_Axial_DIN0207_L6.3mm_D2.5mm_P10.16mm_Horizontal | R1, R2 |
| 2 | motorized_fader | Quint:motorized_fader | MF1, MF2 |
| 1 | |||
| 1 | Pololu_Breakout_DRV8833 | Quint:Pololu_DRV8833 | U1 |
| 1 | QwiicProMicroUSBC | pcb:QwiicProMicroUSBC | PM1 |
| 1 | Screw_Terminal_01x02 | TerminalBlock:TerminalBlock_bornier-2_P5.08mm | J1 |
The 24 most common of 32 parts.
Questions
How big is the VolumePad PCB?
It measures 120.6 × 167.6 mm and has 2 copper layers, 1.6 mm thick.
What parts does the VolumePad use?
32 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 VolumePad KiCad files?
From the kwint/VolumePad repository on GitHub, at the commit this page was made from: the board is pcb/pcb.kicad_pcb and its schematic pcb/pcb.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the VolumePad design in my own project?
Its repository states no licence, so its author keeps all rights: ask kwint before reusing the design.
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