Hello everybody, I have been banging my head against a wall trying to figure out a simple circuit to control a 50pm A load with no success. It is simple to say that I am pretty new to arduino.
I have an ultrasonic porcelain disk humidifier that I am trying to control using an arduino Uno. Just a simple on off for a certain amount of time.
My low volt circuit needs 5v which is no problem but it draws almost 500 mA which is way to much for the arduino pins directly.
Anyone know of a simple circuit that could fix my issue. Thanks
Using a MOSFET as a switch I still go back to this reference every time I need to put a MOSFET in a schematic. It's part of a larger tutorial covering all types of transistors.
Another simple way to do it is to buy a motor driver shield. This gives you more control.
The very simplest is a relay shield but I like to use solid-state components instead of mechanical relays.