I am working on a project and need some help extremely bad.
The problem itself isn't so hard yet the fact that i cant solve it is upsetting me greatly and impeding on my work. I need to build a device that when you set a certain speed on the device, (its a number setting with an up and down button and a small LCD to display number), it wireless/Bluetooth moves a lever/switch to stop the motion of a rod when the device reaches that speed. Basically I need to know how to wire a small LCD to two buttons, and make it display numbers at least up to 75 with the ability to set the number to desired number aka 65.
I need to know how to wire the speedometer, switch/motor, Bluetooth/wireless receiver, all to an Arduino.