test 4D7S + HC-SR04 + NUCLEO-F103RB
Dependencies: ArduinoFB SRF05 mbed
main.cpp
- Committer:
- fblanc
- Date:
- 2015-02-12
- Revision:
- 0:fac6c6a73e5f
- Child:
- 1:0f0f31f25bbd
File content as of revision 0:fac6c6a73e5f:
#include "SRF05.h" #include "Arduino.h" SRF05 srf(D6, D5);//trig;echo //******************************************************************************* //----------------本例程仅供学习使用,未经作者允许,不得用于其他用途。----------- //------------------------版权所有,仿冒必究!----------------------------------- //----------------1.开发环境:Arduino IDE----------------------------------------- //----------------2.测试使用开发板型号:Arduino Leonardo or Arduino UNO R3------- //----------------3.单片机使用晶振:16M------------------------------------------ //----------------4.淘宝网址:http://xmdzpj.taobao.com--------------------------- //----------------5.作者:真红炎神--------------------------------------------- //*******************************************************************************/ int latchPin = 4; int clockPin =7; int dataPin = 8; //这里定义了那三个脚 unsigned char Dis_table[] = {0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0X80,0X90}; //LED状态显示的变量 unsigned char Dis_buf[] = {0xF1,0xF2,0xF4,0xF8}; unsigned char disbuff[] = {0, 0, 0, 0}; void setup () { pinMode(latchPin,OUTPUT); pinMode(clockPin,OUTPUT); pinMode(dataPin,OUTPUT); //让三个脚都是输出状态 } void display() { for(char i=0; i<=3; i++)//扫描四个数码管 { digitalWrite(latchPin,LOW); //将ST_CP口上面加低电平让芯片准备好接收数据 if(i==1) { shiftOut(dataPin,clockPin,MSBFIRST,Dis_table[disbuff[i]]&0x7F); //发送显示码 } else shiftOut(dataPin,clockPin,MSBFIRST,Dis_table[disbuff[i]]); shiftOut(dataPin,clockPin,MSBFIRST,Dis_buf[i] ); //发送通值 //串行数据输入引脚为dataPin,时钟引脚为clockPin,执行MSB有限发送,发送数据table[i] digitalWrite(latchPin,HIGH); //将ST_CP这个针脚恢复到高电平 delay(2); //延时2ms } } void loop() { float val; val=srf*100; /* unsigned char t=((val%1000)/100); disbuff[0]= (unsigned char)(val/1000); disbuff[1]= (unsigned char)((val%1000)/100); disbuff[2]= (unsigned char)((val%100)/10); */ disbuff[0]= (unsigned char)(val/1000); disbuff[1]= (val/100)-disbuff[0]*10; disbuff[2]= (val/10)-(disbuff[0]*100+disbuff[1]*10); disbuff[3]= 0; for(char time=0;time<30;time++) //显示30次,当作延时,以免读取过快 { display(); } } main() { setup(); while(1) { loop(); } }