263 [Complete Course Design] Design of voice alarm for blind guide based on 51 single chip computer-infrared obstacle avoidance

[Resource Download] The download address is as follows:
https://docs.qq.com/doc/DTlRSd01BZXNpRUxl

51 Voice Alarm Design for Blind Guide-Infrared Obstacle Avoidance-Voice

This design is made up of STC89C52 single-chip microcomputer + infrared obstacle avoidance sensor circuit + voice alarm circuit + power supply circuit.

1. Detect obstacles in front by infrared obstacle avoidance sensor, and the detection distance is adjustable from 3-80cm.

2. The infrared obstacle avoidance sensor detects the obstacle, and the voice alarm. Voice can be recorded by itself.

void Init_Timer0(void);
void uartSendStr(unsigned char *s,unsigned char length);
void UART_Init(void);
void uartSendByte(unsigned char dat);

void main (void)
{     
	Init_Timer0();        //定时器0初始化
	UART_Init();
	DelayMs(200);          //延时有助于稳定
	uartSendStr("reday ok!!",10);
	while (1)         //主循环