| 摘要 |
PURPOSE: A mouse pen using an accelerating sensor is provided to practice a test under a limited time by attaching three or more light emitting diodes and a push button on the case of a pencil. CONSTITUTION: A pencil is assembled with the front side of a mouse pen using an accelerating sensor. Three or more light emitting diodes are attached on the case of the pencil. According to the lapse of time, the light emitting diodes are successively turned on. In order to reset the time, a push button which is attached at the front side of the case is pressed. |
