STM32 Thing Plus Hookup Guide

Contributors: Alex the Giant, Ell C
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What incorporates a high-performance Arm® Cortex®-M4 32-bit RISC core, a full set of DSP instructions, memory protection unit (MPU), high-speed embedded memories, up to 4 Kbytes of backup SRAM, and an extensive range of enhanced I/Os and peripherals? The new SparkFun STM32 Thing Plus has all this and more in the popular, Feather-compatible Thing Plus form factor.

Let's have a look at the details!

SparkFun Thing Plus - STM32

SparkFun Thing Plus - STM32


Required Materials

To follow along with this tutorial, you will need the following materials. You may not need everything though depending on what you have. Add it to your cart, read through the guide, and adjust the cart as necessary.

Suggested Reading

If you aren't familiar with the Qwiic system, we recommend reading here for an overview:

Qwiic Connect System
Qwiic Connect System

We would also recommend taking a look at the following tutorials if you aren't familiar with them.

Serial Communication

Asynchronous serial communication concepts: packets, signal levels, baud rates, UARTs and more!


An introduction to I2C, one of the main embedded communications protocols in use today.

ARM Programming

How to program SAMD21 or SAMD51 boards (or other ARM processors).