Using the 555 Timer

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Learn how to use the classic 555 timer and build some simple projects with it. • Article with hookup diagrams: https://dronebotworkshop.com/555-timer • More articles and tutorials: https://dronebotworkshop.com • Join the conversation on the forum: https://forum.dronebotworkshop.com • Subscribe to the newsletter and stay in touch: https://dronebotworkshop.com/subscribe/ • Today we are looking at one of the most famous and useful integrated circuits ever produced - the 555 timer IC. Although this tiny device is over 50 years old it is still in use today, and for many applications, it is a better choice than using a microcontroller. • I’ll explain how the 555 works and how to use it in its three different modes - Astable, Monostable, and Bistable. • We’ll then build some simple, but useful, projects using the 555 timer, including a light chaser and a DC motor controller. They are easy to build and, unlike a microcontroller, don’t require any programming. • In fact, there are a lot of situations where the 555 is a better choice than a microcontroller, especially when you consider how inexpensive and easy to use it is. • Here is the Table of Contents for today's video: • 00:00 - Introduction • 01:40 - 555 Timer Operation • 10:28 - Astable Mode • 15:09 - Monostable Mode • 19:14 - Bistable Mode • 23:12 - Light Chaser • 28:15 - Latching Switch • 30:39 - DC Motor Controller • 34:36 - Touch Switch • 37:20 - Servo Motor Tester • 40:03 - Conclusion • If you’ve already used a 555 then you’re probably aware just how versatile it is. If you’ve never used one, then hopefully this video and article will inspire you to build a few projects with it. Hope you enjoy it!

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