I have just finished a complete restauration of an old car.
Toyota bj40 from 1979
Now i want to add some automatition to the car.
First i want to change the heater blower.
The blower has only two speeds. Slow and fast.
Fast is 24vdc directly to the blower
Slow (1/2 fast speed) is a resistor 4 OHM 50 watt in serial with the blower engine.
I want to control the blower speed with an arduino.
What does i need betweeen arduino and blower engine?
Electronics is complete new for me!
Thans for the advice