7、d can accuratelyreflectthetime youride on thespeedandmileage. Thespeedofthebicycle mileagedisplay systembasedonsingle-chipmicrocomputer asthecore, adoptsthenon-contactspeednon-contactsensor side Holz,whereinthesensor toreceivetheinformationdisplayedonthe LCD1602LC
8、D1602liquidcrystal displayspeed of uplink,downlink mileage display.The motorspeedisadjustable, becausetheconnectionofslidingrheostat motor circuit,throu