School project

how to make a delay timer circuit: This is a delay circuit diagram. we can set the time. because this circuit has an adjustable variable, we use 1 mega adjustable variable to set the time. sometimes we need 5 seconds. sometimes we need 10 seconds. It’s needed according to our …

Motor speed controller circuit diagram: This is a motor speed controller circuit diagram for 12 voltage motor. we also can use it for other work. This is a simple DC motor variable speed controller circuit. The circuit makes up of a timer IC NE555. power motor driver transistor IRFZ44N. This …