2 layers55 × 55 mm
Guitarray power
IIP-Group/polymap
Repository for the PolyMap Hardware and PolyMap Studio VST Plugin (prototype version).
58 parts4CERN-OHL-P-2.0
2 layers49.5 × 97.5 mm
Attiny switch
vektorious/attiny_switchRepository layout: - src/: ATtiny1614 firmware (PlatformIO project) - pcb/: KiCad project and gerbers
- Size
- 49.5 × 97.5 mm
- Copper layers
- 2
- Thickness
- 1.6 mm
- Parts
- 22
- Nets
- 22
- Pads
- 67
- Tracks, vias
- 91, 0
- Routed
- Yes
- KiCad
- KiCad 9.0 (file 20241229)
- Created
- 26 Feb 2026
- Updated
- 29 Oct 2026
Overview
Attiny switch is an open-source printed circuit board by vektorious, from the vektorious/attiny_switch repository on GitHub. It is a 2-layer board of 49.5 × 97.5 mm with 22 parts on 22 nets, routed with 91 tracks and 0 vias.
It is built around the ATTINY1614-SSN and ISP772T. Its parts include 6 connectors, 4 resistors, 3 capacitors, 3 ICs and 1 diode. It belongs with the AVR (ATmega, ATtiny) boards of this library.
Main components
2README
README.mdattiny_switch
Repository layout:
src/: ATtiny1614 firmware (PlatformIO project)pcb/: KiCad project and gerbers
Firmware target
- MCU:
ATtiny1614 PA1: ISP772TINcontrolPA0: dedicatedUPDI/RESETpin, reserved for programming/debug and not used for switch control
Current behavior:
- On reset, drive
PA1low immediately - Then loop forever: OFF 50 min, ON 10 min
- MCU sleeps in
STANDBYand wakes from RTC once per minute
PlatformIO
platformio.ini is configured for bare-metal register-level C (no Arduino framework).
Build:
pio runUpload over UPDI (PA0):
- Set your serial port in
platformio.ini(upload_port = COMx). - Run:
pio run -t uploadThe configured upload command uses avrdude with serialupdi.
Parts
22| Qty | Value | Footprint | References |
|---|---|---|---|
| 3 | MountingHole | MountingHole:MountingHole_3.2mm_M3 | H1, H2, H3 |
| 2 | 100nF | Capacitor_SMD:C_1206_3216Metric | C1, C2 |
| 1 | 100k | Resistor_SMD:R_1206_3216Metric | R3 |
| 1 | 10uF | Capacitor_SMD:C_1206_3216Metric | C3 |
| 1 | 12V in | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J1 |
| 1 | 12V out | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J2 |
| 1 | 1k87 | Resistor_SMD:R_1206_3216Metric | R2 |
| 1 | 4,7k | Resistor_SMD:R_1206_3216Metric | R1 |
| 1 | 7,5k | Resistor_SMD:R_1206_3216Metric | R5 |
| 1 | ATtiny1614-SS | Package_SO:SOIC-14_3.9x8.7mm_P1.27mm | U1 |
| 1 | Battery_Cell | Eagle-12BH212P-GR:Untitled | BT1 |
| 1 | ISP772T | Package_SO:SOIC-8_3.9x4.9mm_P1.27mm | U2 |
| 1 | LED | LED_SMD:LED_1206_3216Metric | D1 |
| 1 | Optocoupler | Package_DIP:DIP-4_W7.62mm | U3 |
| 1 | RPI Signal | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J6 |
| 1 | RPI Signal (OK) | TerminalBlock:TerminalBlock_MaiXu_MX126-5.0-02P_1x02_P5.00mm | J4 |
| 1 | SW_DPDT_x2 | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | SW1 |
| 1 | Serial Connector | Connector_PinHeader_2.54mm:PinHeader_1x04_P2.54mm_Vertical | J5 |
| 1 | UPDI Connector | Connector_PinHeader_2.54mm:PinHeader_1x03_P2.54mm_Vertical | J3 |
Questions
How big is the Attiny switch PCB?
It measures 49.5 × 97.5 mm and has 2 copper layers, 1.6 mm thick.
What parts does the Attiny switch use?
22 parts, built around the ATTINY1614-SSN and ISP772T. 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 Attiny switch KiCad files?
From the vektorious/attiny_switch repository on GitHub, at the commit this page was made from: the board is pcb/attiny_switch.kicad_pcb and its schematic pcb/attiny_switch.kicad_sch. PCBKit opens the board in the browser, with nothing to install.
Can I use the Attiny switch design in my own project?
Its repository states no licence, so its author keeps all rights: ask vektorious before reusing the design.
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