Build Season 2026 is live: Publish a build to win M5Stack hardwareBuild Season 2026 is live

Teensy LC

Teensy LC — PJRC — 0700161461633

Low-cost 32-bit ARM Cortex-M0+ microcontroller board (48 MHz) with native USB, 13 analog inputs, and hardware touch sensing. Arduino IDE compatible.

Pinout

Logical pinout · physical placement not verified
TEENSY LCVin (3.7-5.5V)13 (LED)GND17-5V (buffered)3.3V (100mA max)AREF0-12 (digitalanalog)

One grouped source record is expanded into separate logical pads where unambiguous; physical placement is not implied.

  • Vin (3.7-5.5V)power rail
    Type · Power
  • GNDmultiple
    Type · Ground
  • 3.3V (100mA max)power rail
    Type · Power
  • 0-12 (digitalanalog)0-12
    Type · Signal
  • 13 (LED)13
    Type · Signal
  • 14-23A10-A12 etc14+
    Type · Signal
  • 17-5V (buffered)special
    Type · Signal
  • AREF
    Type · Analog

Start wiring

USB · 3.3 V

Verify supply voltage and logic levels before powering up.

Module pins: Vin (3.7-5.5V), 3.3V (100mA max), GND, 0-12 (digital/analog), 13 (LED), 14-23 / A10-A12 etc, 17-5V (buffered), AREF. Schematik maps them to your board in the app.

Other MCUs

228 other options

Specialists: Teensy for high-clock audio and USB, Adafruit SAMD boards running CircuitPython or the Arduino IDE, proper STM32 eval kits, and the micro:bit classroom ecosystem. Schematik builds target ESP32, Arduino Uno, and Pico; come here when you have a specific reason to.

View all 228

Related groups

4 groups

Arduino

About 75 boards across every Arduino generation: 5V Uno/Mega/GIGA, 3.3V MKR and Portenta, plus DFRduino and Bluno compatibles. Confirm the voltage rail before stacking any shield.

Boards · Arduino boards · 77 parts

ESP32

Wi-Fi and Bluetooth on a single chip, in every shape from Espressif DevKitC to Adafruit Feathers with STEMMA QT, DFRobot FireBeetles tuned for battery life, and Seeed XIAOs under a thumbnail.

Boards · ESP32 boards · 159 parts

Add-ons

About 270 add-ons across Pi HATs, Arduino shields, and FeatherWings. The same function — motor control, PoE, display — usually ships once per host connector family. Get the host board right first.

Boards · HATs, Shields & add-ons · 270 parts

Pi Pico

The Raspberry Pi MCU line — Pico, Pico 2, and third-party boards on the same silicon — plus a deep bench of Pico-pinout displays, loggers, and radio modules that do nothing without a Pico plugged in.

Boards · Pico & RP2040 boards · 43 parts