116 lines
2.6 KiB
C++
116 lines
2.6 KiB
C++
/*
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* @Author: dugulingping
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* @Date: 2022-04-17 16:00:40
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* @LastEditTime: 2022-05-23 16:57:11
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* @LastEditors: dugulingping
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* @Description:
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* @FilePath: \test\DHTdisplay\DHTdisplay.ino
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*/
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#include "DHT.h"
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// DHT11
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#define DHTPIN 4
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#define DHTTYPE DHT22 // DHT 11
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//LED
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#define SCLK 14
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#define RCLK 13
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#define DIO 15
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DHT dht(DHTPIN, DHTTYPE);
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//定义字库
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unsigned char LED_0F[] = {
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// 0 1 2 3 4 5 6 7 8 9 A b C d E F -
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0xC0,0xF9,0xA4,0xB0,0x99,0x92,0x82,0xF8,0x80,0x90,0x8C,0xBF,0xC6,0xA1,0x86,0xFF,0xbf
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};
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//定义位
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unsigned char LED_BIT[] = {
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// 1 2 3 4 1+2 3+4 1~4
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0x01,0x02,0x04,0x08,0x03,0x0C,0x0F
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};
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//定义dht数据
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int dhtdata[3] = {0};
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void setup() {
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Serial.begin(115200);
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dht.begin();
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//让三个脚都是输出状态
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pinMode(SCLK,OUTPUT);
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pinMode(RCLK,OUTPUT);
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pinMode(DIO,OUTPUT);
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}
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//定时
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int delay_date = 0;
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void loop() {
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if(delay_date < 2000){
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delay_date+=4;
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}else{
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delay_date = 0;
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DHT_Data();
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}
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if(!dhtdata[1]||!dhtdata[2]){
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LED_display(LED_BIT[6], 0xBF);
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return;
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}
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int num1 = dhtdata[0]%10;
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int num2 = dhtdata[0]/10;
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int num3 = dhtdata[2]%10;
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int num4 = dhtdata[2]/10;
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LED_display(LED_BIT[2], LED_0F[num1]-128);
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LED_display(LED_BIT[3], LED_0F[num2]);
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LED_display(LED_BIT[0], LED_0F[num3]-128);
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LED_display(LED_BIT[1], LED_0F[num4]);
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//LED_display(LED_BIT[2], LED_0F[data_split(dhtdata[0])[0]]-128);
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//LED_display(LED_BIT[1], LED_0F[data_split(dhtdata[2])[1]]);
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//LED_display(LED_BIT[0], LED_0F[data_split(dhtdata[2])[0]]);
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}
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void LED_display(unsigned char bit, unsigned char digit ){
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LED_OUT(digit);
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LED_OUT(bit);
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digitalWrite(RCLK,LOW);
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digitalWrite(RCLK,HIGH);
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delay(1);
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}
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void LED_OUT(unsigned char X){
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unsigned char i;
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for(i=8;i>=1;i--)
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{
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if(X&0x80)
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digitalWrite(DIO,HIGH);
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else
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digitalWrite(DIO,LOW);
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X<<=1;
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digitalWrite(SCLK,LOW);
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digitalWrite(SCLK,HIGH);
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}
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}
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int * data_split(int num){
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int res[2] = {0};
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for(int i = 0; num > 0; i++){
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res[i] = num%10;
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}
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return res;
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}
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void DHT_Data(){
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float h = dht.readHumidity();
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float t = dht.readTemperature(false);
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float hic = dht.computeHeatIndex(t, h, false);
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if (isnan(h) || isnan(t)){
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Serial.println(F("Failed to read from DHT sensor!"));
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dhtdata[0] = 0;
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dhtdata[1] = 0;
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dhtdata[2] = 0;
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return;
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}
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dhtdata[0] = h;
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dhtdata[1] = t;
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dhtdata[2] = hic;
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Serial.println(h);
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} |