Due to overexposure, it is not very clear. The circuit part uses MC34063 as the power supply, and the main chips are DS1302, 74hc373, and AT89C51. The circuit board is made of a universal board, as follows:
Using DS1302 can effectively prevent the trouble of adjusting the time when the motorcycle battery is powered off. Since the voltage is high when the motorcycle starts, it is estimated that it is difficult to trust the 7805 power supply, so the MC34063 switching power supply is used. The remote control uses the following remote control, and the remote control code is: mode: 00-ff-00-ff, vol+: 00-ff-09-f6, vol-: 00-ff-0c-f3. The buzzer will sound if the remote control decoding is normal. Mode is the menu key. Press mode once to adjust the hour by flashing, press vol+ to add numbers, press vol- to subtract numbers, and then press mode once to adjust the minute by flashing, and press again to exit.
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