Raspberry Pi Pico

(www.raspberrypi.org)

Today, we’re launching our first microcontroller-class product: Raspberry Pi Pico. Priced at just $4, it is built on RP2040, a brand-new chip developed right here at Raspberry Pi. Whether you’re looking for a standalone board for deep-embedded development or a companion to your Raspberry Pi computer, or you’re taking your first steps with a microcontroller, this is the board for you.

But there are limits: even in its lowest power mode a Raspberry Pi Zero will consume on the order of 100 milliwatts; Raspberry Pi on its own does not support analogue input; and while it is possible to run “bare metal” software on a Raspberry Pi, software running under a general-purpose operating system like Linux is not well suited to low-latency control of individual I/O pins.

This version may not be for everyone, but for those who want to get started on Pi, it's a good get.