This guide explains serial connections between the Circuit Playground Express and other devices. This is very useful for making connections to other microcontrollers or single board computers like the Raspberry Pi. And some sensors require serial communications instead of other protocols like I2C or SPI.

An outbound serial connection can be used for applications like CNC, data logging, debugging code, and many other things.

You can program serial communications with Microsoft MakeCode and CircuitPython - examples will be shown in each.

Parts List

A Black woman's manicured hand holds a round microcontroller with lit up LEDs.
Circuit Playground Express is the next step towards a perfect introduction to electronics and programming. We've taken the original Circuit Playground Classic and...
$24.95
In Stock
USB to TTL Serial Cable With Type A plug and 4 wire sockets
The cable is easiest way ever to connect to your microcontroller/Raspberry Pi/WiFi router serial console port. Inside the big USB plug is a USB<->Serial conversion chip and at...
$9.95
In Stock
Angled shot of a blue rectangular converter.
Discontinued - you can grab Adafruit CP2102N Friend - USB to Serial Converter instead! Long gone are...
Out of Stock
Group of Small Alligator Clip to Male Jumper Wires
When working with unusual non-header-friendly surfaces, these handy cables will be your best friends! No longer will you have long, cumbersome strands of alligator clips. These...
$3.95
In Stock

This guide was first published on Aug 14, 2018. It was last updated on Aug 14, 2018.

This page (Overview) was last updated on Aug 08, 2022.

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