Patent ID: 8149216
Filing Date: 2012-04-03
Classification: G05G,G06F

Abstract:
1. An electronic device with a joystick, comprising: a main body defining a first hollow receiving space, wherein a plurality of first conductive elements protrude out from the inner sidewall of the first receiving space and extend along the axis of the first receiving space, each of the first conductive elements has a resistance; a plurality of resistors, wherein each of the first conductive elements is electrically grounded via one of the plurality of the resistors; a chip comprising a plurality of input pins, wherein each of the pins is electrically connected to a node between a first conductive element and a resistor connected to the first conductive element; a joystick comprising a rotatable post, wherein the rotatable post is received in the first receiving space; a second conductive element protrudes out from the sidewall of the rotatable post and extends along the axis of the rotatable post; the second conductive element is electrically connected to a direct current power source; wherein when the joystick is rotated, causing the second conductive element to contact with a portion of one of the first conductive elements, a voltage value of the pin connected to the second conductive element is changed; the chip detects a change of the voltage value of the pins and executes corresponding functions according to the detected change of the voltage value of the pins.