Car multi-function alarm circuit diagram Functional requirements: When the system detects various faults in the car, it will give a voice prompt alarm. 0AH "Ding Dong" + left rear wheel + please change the battery WENZHOU TENGCAI ELECTRIC CO.,LTD , https://www.tengcaielectric.com
Voice: front left wheel; front right wheel; rear left wheel; rear right wheel; tire pressure is too low; tire pressure is too high; please change the battery; Dingdong control mode: parallel port mode.
Voice corresponding address: (Add 200 subtle mute to each voice combination)
00H "Ding Dong" + left front wheel + tire pressure is too high
01H "Ding Dong" + right front wheel + tire pressure is too high
02H "Ding Dong" + left rear wheel + tire pressure is too high
03H "Ding Dong" + right rear wheel + tire pressure is too high
04H "Ding Dong" + left front wheel + tire pressure is too low
05H "Dingdong" + front right wheel + tire pressure is too low
06H "Ding Dong" + left rear wheel + tire pressure is too low
07H "Ding Dong" + right rear wheel + tire pressure is too low
08H "Dingdong" + front left wheel + please change the battery
09H "Ding Dong" + front right wheel + please change the battery
0BH "Ding Dong" + right rear wheel + please replace the battery power schematic as follows: 