土壤温湿度传感器c程序.pdf

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1、1/5/*turangwenshiduchuanganqi1.c *Created:2015/8/5 9:18:56 *Author:Administrator */*/*常用头文件及宏定义 */*/#include#include /延时文件#include /睡眠文件#include /中断文件#include /eeprom#define BIT(x)(1(x)#define uchar unsigned char#define uint unsigned int /*/*1602 */*/*8 位总线模式 */*引脚说明 */*PC 0 RS PC 1 RW PC 2 E PC 3 背

2、光 PB 0PB 7 数据 */*宏定义 */#define DDR_SHUJU DDRB#define PORT_SHUJU PORTB#define PIN_SHUJU PINB#define DDR_KZ DDRC#define PORT_KZ PORTC#define RS_H PORT_KZ|=BIT(0)#define RS_L PORT_KZ&=(BIT(0)#define RW_H PORT_KZ|=BIT(1)#define RW_L PORT_KZ&=(BIT(1)#define E_H PORT_KZ|=BIT(2)#define E_L PORT_KZ&=(BIT(2)

3、2/5#define BEIGUABG_H PORT_KZ|=BIT(3)#define BEIGUABG_L PORT_KZ&=(BIT(3)uchar lcd_read()/读忙函数 uchar bl;DDR_SHUJU=0;/输入 PORT_SHUJU=0 xff;/上拉电阻 RS_L;RW_H;E_H;_delay_ms(1);bl=PIN_SHUJU;E_L;RW_L;PORT_SHUJU=0;DDR_SHUJU=0 xff;return bl;void lcd_write_char(uchar shuju)/写字符函数 while(lcd_read()&BIT(7);RS_H;RW

4、_L;PORT_SHUJU=shuju;E_H;E_L;RS_L;void lcd_write_string(char*str)/写字符串函数 while(*str!=0)lcd_write_char(*str);str+;void lcd_write_zhiling(uchar zhiling)while(lcd_read()&BIT(7);RS_L;RW_L;PORT_SHUJU=zhiling;E_H;3/5 E_L;void chushihua_1602()PORT_SHUJU=0;DDR_SHUJU=0 xff;PORT_KZ=0;DDR_KZ=0 xff;lcd_write_zhi

5、ling(0 x38);/8 位总线 lcd_write_zhiling(0 x08);lcd_write_zhiling(0 x01);lcd_write_zhiling(0 x06);lcd_write_zhiling(0 x0c);/*/*水泵初始化函数 */*/#define DDR_ZT DDRA#define PORT_ZT PORTA#define PIN_ZT PINA#define ZT_H PORT_ZT|=BIT(1)#define ZT_L PORT_ZT&=(BIT(1)void shuibengchushihua()DDR_ZT|=BIT(1);PORT_ZT|=B

6、IT(1);/*/*土壤湿度检测函数 */*/void shidujiande()shuibengchushihua();if(PIN_ZT&BIT(2)lcd_write_zhiling(0 x80+6);lcd_write_char(1);ZT_H;4/5 else lcd_write_zhiling(0 x80+6);lcd_write_char(0);ZT_L;/*/*ADC */*/#define ADC_ON ADCSRA|=BIT(ADSC)/开始转换 void chushihua_adc()int shuju_0;ADMUX=BIT(REFS0);/vcc 参考电压，ADC0

7、通道 cli();/关中断 ADCSRA=BIT(ADEN)|BIT(ADIE)|BIT(ADPS0);/2 分频，中断，ADCSRA|=BIT(ADSC);/开始转换 while(!(ADCSRA&BIT(ADIF);shuju_0=ADCL;shuju_0+=ADCH8;ADCSRA|=BIT(ADIF);sei();/开中断 ISR(ADC_vect)int shuju=0;shuju=ADCL;shuju+=ADCH8;shuju=shuju*(5.0/1024)*1000;lcd_write_zhiling(0 x80+0 x40+8);lcd_write_char(shuju/10

8、00+0);lcd_write_char(.);lcd_write_char(shuju%1000/100+0);lcd_write_char(shuju%1000%100/10+0);lcd_write_char(shuju%10+0);_delay_ms(1000);/*/*主函数 */*/5/5 int main(void)chushihua_1602();chushihua_adc();char*s_0=humi:,*s_1=dianya:;lcd_write_zhiling(0 x80+0 x40);lcd_write_string(s_1);lcd_write_zhiling(0 x80);lcd_write_string(s_0);while(1)shidujiande();ADC_ON;_delay_ms(100);