The Raspberry Pi Pico is a very powerful microcontroller, especially when compared to an Arduino Uno. Yet most of the time we reach for a board to test with, we pick an Uno! This is because the Uno is easier to prototype with.
Well, today we’ll change all that and build three different “Pico Uno” boards that have the power of the RP2040 and the ease of use of an Arduino Uno.
The 555 is one of the most popular integrated circuits ever created, with over a billion of them produced every year. In many cases, the 555 is a simpler and better choice than using a microcontroller.
Today we will learn how the 555 works, and then we will build five simple projects using a 555 timer.