Hey Guys i need some advice.
How can i Control a 16 Ampere relay with my arduino max Output ist 5 V i guess so do i need an extra Power supply? Is IT enough to Connect my arduino and use an extern Power supply for the 24 V relay or do i need an Amplifier circuit?
Hi @Flo18 and welcome to our forum!
Usually, optocouplers are used for this. We use them to activate high voltage devices with Arduino.
Check out explanation here: https://howtomechatronics.com/tutorials/arduino/control-high-voltage-devices-arduino-relay-tutorial/