How to drive digital outputs from an Arduino?

[Go4IT]

In this blog-post i will show you how to drive different output signals from an Arduino.

1. How to drive a relay to switch higher loads
2. How to drive a 12V signal for other car modules
3. How to additionally drive an existing 12V relay of the car
4. How to drive LEDs
5. How to drive bulbs
6. ... to be continued