采用1602做的带时钟的计价器，设置白天黑夜功能键，白天黑夜单价不同，在电机停止转动时，可以调节时钟，可以实时显示单价，里程，总价等，在车速低于5公里/时的时间如果超过5分钟，额外多收2元，在此基础上，每超过3分钟增加2元-1602 to do with using the meter clock, set the day and night function key, day and night Price is different when the motor stops rotating, you can adjust the clock, real-time display unit price, mileage, total, etc., in the speed below 5 km/h time if more than 5 minutes, an extra 2 yuan revenue, on this basis, every increase of more than 3 minutes 2 yuan