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pinch PCB Kit (PRE-ORDER)

pinch PCB Kit (PRE-ORDER)

SHIPPING STARTS SEPT 2026

$15.90 USD
$15.90 USD
Sale Sold out

This kit includes:

  • pinch Arduino-Compatible Board (SAMD11 based)
  • Breakout Board with 0.1" pitch
  • Male 0.1" pitch header pins (x3 unsoldered)

pinch is the World's Smallest 32-bit Arduino-compatible board. Small enough for tight builds and capable enough to run HID devices like keyboards and mice over native USB. Full spec sheet, pinout, and Arduino board options on GitHub.

Please review our return/warranty policy.

3D Files

Schematics PDF

PCB Files

  • Assembly PDF coming soon
View full details

Full Specs

Product Namepinch
ProcessorARM Cortex-M0+ processor running at up to 48 MHz (SAMD11)
RAM4 KB SRAM
Flash16 KB Flash (12 KB for sketches, 4 KB bootloader)
Interface
  • GPIO Pin x15 (D0–D14)
  • Header GPIO x12 (D0–D11)
  • Analog Pin x5 (A0–A4)
  • PWM Pin x11
  • DAC x1
  • I2C x1
  • UART x2 (USB & D5/D6)
  • SPI x1
USBUSB-C, native full-speed (CDC serial + HID)
Onboard
  • RGB LED (D12–D14)
  • Reset button
  • 3.3 V LDO
Header16-pin, 1.27 mm pitch
Power
  • 5 V (USB-C) @ 500 mA max output
  • 3.3 V (LDO) @ 300 mA max output
DebugSWD on D5 (SWCLK) / D6 (SWDIO)
Dimensions
  • 10.5 mm x 10.9 mm (±0.2 mm)
  • 0.413 in x 0.429 in (±0.008 in)

Pinout

pinch Arduino pinout diagram — 15 GPIO with analog, PWM, I2C, SPI, UART, DAC, and RGB LED labels
Arduino MCU pin Analog PWM Peripheral
D0 PA15 ✓ I2C SCL
D1 PA14 ✓ I2C SDA
D2 PA09 ✓
D3 PA08 ✓
D4 PA17 ✓
D5 PA30 ✓ Serial1 TX, SWCLK
D6 PA31 ✓ Serial1 RX, SWDIO
D7 PA07 A0 SPI MOSI
D8 PA06 A1 ✓ SPI MISO
D9 PA05 A2 SPI SCK
D10 PA04 A3 SPI SS
D11 PA02 A4 DAC0
D12 PA16 ✓ LED_R / LED_BUILTIN
D13 PA11 ✓ LED_B
D14 PA10 ✓ LED_G

PWM — ✓ marks pins usable with analogWrite(); the carrier frequency is set by Tools → Timer PWM Frequency (default 732 Hz). D11 is the DAC: analogWrite(A4) there outputs a true analog voltage, not PWM.