In this tutorial, we'll walk you through using the SparkFun Audio Player Breakout in combination with the Qwiic Twist to let you select and play tracks from a microSD card. It's a compact and powerful way to add audio interactivity to your prototype using simple I2C and serial connections.

Let’s take a look at how to use the analog-to-digital converter (ADC) in an STM32 microcontroller. To make conversions happen more quickly, we can use the direct memory access (DMA) controller to pipe data directly from a peripheral (like the ADC) to memory and vice versa.

Let’s look at how to connect a simple I2C device to a STM32 Nucleo board to read temperature data using the STM32 HAL API.

Use an Arduino to read temperature, humidity, and pressure data from a BME280 and send it over a simple LoRa connection to a Raspberry Pi server.

In the past couple weeks I've been experimenting with LuMini Rings and RGB Matrix Panels. Some interesting examples to make them really pop.

The latest iteration of the SparkFun Serial Basic Breakout takes advantage of USB-C and is an easy-to-use USB-to-Serial adapter based on the CH340C IC from WCH.