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.
Learn about the Peltier Effect and how to use a common and inexpensive Peltier cooler to cool down your electronic projects. We will perform a few experiments with a Peltier module, including using it to make ice!
We will also hook up a Peltier Cooler assembly that you can get on eBay.
What do you do when you want to save data in your Arduino project and have it available even after the Arduino is powered down? One excellent way of doing this is by using EEPROM – Electrically Erasable Read-Only Memory.
In this article you will learn how to use both internal and external EEPROM with an Arduino.