Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
Welcome to our site! Electro Tech is an online community (with over 170,000 members) who enjoy talking about and building electronic circuits, projects and gadgets. To participate you need to register. Registration is free. Click here to register now.
I have a 3 x 4 matrixed keypad and hope to design and build a circuit that will change the speed of the motor according to the number selected on the keypad.
1 = very slow
9 = very fast
A basic micro controller would do this easily. Matrix keypads are very easy to interface to micro controllers, and can also easily drive an h-bridge to your motor.
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