| 摘要 |
PROBLEM TO BE SOLVED: To provide an electronic device with high interest in which a special instruction can be simply and easily inputted. SOLUTION: An electronic device comprise an electronic device main body 3 and a belt body 5. The electronic device main body 3 has a liquid crystal display device for displaying a rotor and a guide part. The belt body 5 is provided with a plurality of through holes 6a, 6b and 6c. When a photodetecting part (photocoupler) calculates the moving speed of the belt body 5 on the basis of detection interval for detecting the respective through holes 6a, 6b and 6c and 6c, a rotation control means controls the rotating speed of the rotor on the basis of the calculated speed. |
