基于51单片机的宠物自动猫粮狗粮喂养机proteus仿真原理图PCB
功能介绍：
0.本系统采用STC89C52作为单片机
功能简介：
1.LCD1602实时显示当前时间/温湿度/食物重量
2.当时间到达设定喂食时间，启动步进电机进行投喂，投喂量达到预先设定好的重量后停止投喂
3.按键可更改当前时间/喂食时间/喂食量
4.按键可手动控制喂食(手动控制时，不判断实物重量)
5.采用DC002作为电源接口可直接输入5V给整个系统供电
原理图：
PCB ：
主程序：
#include "main.h" char dis[16]; enum _MODE_DF_ dispMode; unsigned char setIndex = 0; bit refreshFlag = 1; unsigned long initialWeight = 0; //单位g float objectWeight = 0; //单位g unsigned char feedTime[3] = {18, 0, 0}; //投喂时间18:00:00 int feedWeight = 100; //100g bit feedFlag1 = 0; //自动喂食启动标志1 bit feedFlag2 = 0; //手动喂食启动标志2 void main(void) { BYJ48 = ((BYJ48 & 0xF0) | REV[0]); //取数据 ULN_DQ3 = BIT3; ULN_DQ2 = BIT2; ULN_DQ1 = BIT1; ULN_DQ0 = BIT0; Timer0_Init(); Timer1_Init(); DS1302_Init(); // DS1302_Write_Time(); DelayMs(10); LCD_Init(); LCD_DispStr(0, 0, " Welcome! "); DelayMs(200); initialWeight = HX711_GetInitialWeight(); LCD_Clear(); while (1) { if (refreshFlag == 1) //每400ms刷新一次屏幕 { refreshFlag = 0; if (dispMode == NORMAL) { DispNormal(); } } if (timeBufDec[4] == feedTime[0] && timeBufDec[5] == feedTime[1] && timeBufDec[6] == feedTime[2]) { feedFlag1 = 1; //启动喂食 } if (objectWeight >= feedWeight) //超过喂食重量 { feedFlag1 = 0; //停止喂食 } KeyProcess(); } } void DispNormal() { DS1302_Read_Time(); //读取实时时间 ET1 = 0; objectWeight = HX711_Read(); objectWeight = (objectWeight - initialWeight) / GAPVALUE; //读取实物重量 objectWeight = (objectWeight<0)?0:objectWeight; DHT11_0_ReadData(); //读取温湿度 ET1 = 1; sprintf(dis, "W:%6.3fkg %2d", objectWeight/1000, (int)U8T_data_H); LCD_DispStr(0, 0, dis); LCD_DispOneChar(13, 0, 0xdf); LCD_DispOneChar(14, 0, 'C'); sprintf(dis, "%02d:%02d:%02d Hm:%2d%%", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6], (int)U8RH_data_H); LCD_DispStr(0, 1, dis); } /************************* 设置当前时间 *************************/ void DispSetTime(unsigned char setIndex) { sprintf(dis, "%02d:%02d:%02d", (int)timeBufDec[4], (int)timeBufDec[5], (int)timeBufDec[6]); LCD_DispStr(0, 1, dis); switch (setIndex) { case 1: LCD_SetCursor(1, 1, 1); break; case 2: LCD_SetCursor(4, 1, 1); break; case 3: LCD_SetCursor(7, 1, 1); break; default:break; } } /************************* 设置喂食时间 *************************/ void DispSetFeedTime(unsigned char setIndex) { LCD_DispStr(0, 0, " Feed Time "); //LCD_DispStr(0, 0, " TIME 2 "); sprintf(dis, " %02d:%02d:%02d ", (int)feedTime[0], (int)feedTime[1], (int)feedTime[2]); LCD_DispStr(0, 1, dis); switch (setIndex) { case 1: LCD_SetCursor(5, 1, 1); break; case 2: LCD_SetCursor(8, 1, 1); break; case 3: LCD_SetCursor(11, 1, 1); break; default:break; } } /************************* 设置喂食量 *************************/ void DispSetFeedWeight(unsigned char setIndex) { LCD_DispStr(0, 0, " Food Weight "); sprintf(dis, " %6.3fkg ", (float)feedWeight/1000); LCD_DispStr(0, 1, dis); switch (setIndex) { case 1: LCD_SetCursor(8, 1, 1); break; default:break; } } void Timer0_Init() { TMOD &= 0xF0; TMOD |= 0x01; //T0 T1 均在工作方式1 PT0 = 1; //优先级设置 TR0 = 0; ET0 = 1; //T0开中断 EA = 1; //CPU开中断 } void Timer1_Init() { TMOD &= 0x0F; TMOD |= 0x10; //T0 T1 均在工作方式1 TH1 = (65536 - 18432) / 256; //定时20ms TL1 = (65536 - 18432) % 256; TR1 = 1; ET1 = 1; //T0开中断 EA = 1; //CPU开中断 } void Timer1(void) interrupt 3 //T1中断程序 { static unsigned int cnt = 0; static unsigned int motorCnt = 0;TL1 = 0x66;//设置定时初始值TH1 = 0xFC;//设置定时初始值 1ms cnt++; if (cnt >= 400) { refreshFlag = 1; cnt = 0; } if (feedFlag1 == 1 || feedFlag2 == 1) //启动喂食，正转 { if (motorCnt <= MAXCNT) { BYJ48 = ((BYJ48 & 0xF0) | REV[motorCnt % 8]); //取数据 ULN_DQ3 = BIT3; ULN_DQ2 = BIT2; ULN_DQ1 = BIT1; ULN_DQ0 = BIT0; motorCnt++; } } else //停止喂食反转 { if (motorCnt > 0) { BYJ48 = ((BYJ48 & 0xF0) | REV[motorCnt % 8]); //取数据 ULN_DQ3 = BIT3; ULN_DQ2 = BIT2; ULN_DQ1 = BIT1; ULN_DQ0 = BIT0; motorCnt--; } } } //程序结束
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https://www.bilibili.com/video/BV1F24y197J3/
实物演示视频：
https://www.bilibili.com/video/BV1fN4y1P7Yu/
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