Electronic bicycle bell, has connection for dubbing bell tone from computer, which is connected with microcontroller, where microcontroller is connected with jumper to change desired melody of bell tone

摘要

The electronic bicycle bell has a universal serial bus (USB) connection for dubbing a bell tone from a computer, which is connected with a microcontroller (5). The microcontroller includes an analog-digital-converter and a digital-analog-converter. The microcontroller is connected with a jumper (2) in such a manner to change desired melody of the bell tone, where current supply is provided to the bell via one or two mignon-batteries (6). A loudspeaker (3) is attached at the microcontroller. The microcontroller is steered from outside via a pushbutton (4).