称重压力传感器HX711AD模块电路+程序

称重模块电路+程序（测试通过）

总体电路

电源+串口通讯

单片机最小系统：

存储模块+下载模块+蜂鸣器+矩阵键盘

称重模块： 淘宝链接：

http://detail.tmall.com/item.htm?spm=a230r.1.0.0.tule1b&id=20046845949&ad_id=&am_id=&cm_id=140105335569ed55e27b&pm_id=&abbucket=5

主程序：

#include \#include \#include \

unsigned long HX711_Buffer = 0;

unsigned long Weight_Maopi = 0,Weight_Shiwu = 0; char Price_Count = 0;

unsigned char KEY_NUM = 0;

unsigned char Price_Buffer[3] = {0x00,0x00,0x00}; unsigned long Money = 0; bit Flag_OK = 0;

//****************************************************

//主函数

//**************************************************** void main() {

Init_LCD1602();

//初始化LCD1602

LCD1602_write_com(0x80); LCD1602_write_word(\ //指针设置

//开机画面第一行

Delay_ms(2000); //延时2s

loop:Price_Count = 0; Price_Buffer[0] = 0; Price_Buffer[1] = 0; Price_Buffer[2] = 0; Flag_OK = 0;

LCD1602_write_com(0x80); LCD1602_write_word(\ LCD1602_write_com(0x80+0x40); LCD1602_write_word(\ . | . \

Get_Maopi();

//称毛皮重量

//指针设置

//指针设置

while(1) { if( Flag_OK == 0) { Get_Weight();

}

//称重

//显示当前重量

LCD1602_write_com(0x80+0x40);

LCD1602_write_data(Weight_Shiwu/1000 + 0x30); LCD1602_write_data('.');

LCD1602_write_data(Weight_Shiwu00/100 + 0x30); LCD1602_write_data(Weight_Shiwu0/10 + 0x30); LCD1602_write_data(Weight_Shiwu + 0x30);

KEY_NUM = KEY_Scan(); if( KEY_NUM != 0x55) {

//当返回的不是初值时候，确认按键按下。 //数字A键，去皮功能 //去皮

if(KEY_NUM == 16) { Get_Maopi(); }

if(KEY_NUM == 15) { goto loop; }

//数字B键清除键，二次测量

if(KEY_NUM == 12) { Price_Count--; if( Price_Count < 0) { Price_Count = 0; } }

//数字C输入单价错误时返回上一步

Price_Buffer[Price_Count] = 0; //清除上一个输入的数据

switch(Price_Count) { case 0: LCD1602_write_com(0x80+0x40+6); LCD1602_write_data(' '); break; case 1: LCD1602_write_com(0x80+0x40+7); LCD1602_write_data(' '); break; case 2: LCD1602_write_com(0x80+0x40+9); LCD1602_write_data(' '); break; default : break; }

if(KEY_NUM == 13) {

//数字D键，计算总价