温度湿度计
Language | English |
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目的将获取到的环境数据通过手机查看。 原理通过温湿度传感器和光敏传感器将获取到的环境数据结合mCookie-BT蓝牙传送到手机上。 设备
文档Android客户端:
注意:新版BT是蓝牙4.0,需要Android 4.3以上的系统才能支持。这里只提供Android的APP。
准备
软件调试
#include <Wire.h>
#include "I2Cdev.h"
#include <AM2321.h>
AM2321 am2321;
#include <SoftwareSerial.h>
SoftwareSerial mySerial(4, 5); // RX, TX
//#define Serial_com mySerial
#define Serial_com Serial1
float sensor_tem, sensor_hum, sensor_lux, sensor_light;
String dataToSend;
char buf[10];
void setup() {
Serial.begin(9600);
Serial_com.begin(9600);
}
void loop() {
//获取温湿度==============================================
am2321.read();
sensor_tem = am2321.temperature / 10.0;
sensor_hum = am2321.humidity / 10.0;
sensor_light = map(analogRead(A0), 0, 1023, 0, 255);
dtostrf(sensor_tem, 1, 1, buf);
dataToSend = "{T:" + String(buf) + "}";
Serial_com.print(dataToSend);
Serial.println(dataToSend);
delay(1000);
dtostrf(sensor_hum, 1, 1, buf);
dataToSend = "{H:" + String(buf) + "}";
Serial_com.print(dataToSend);
Serial.println(dataToSend);
delay(1000);
dtostrf(sensor_light, 1, 1, buf);
dataToSend = "{L:" + String(buf) + "}";
Serial_com.print(dataToSend);
Serial.println(dataToSend);
delay(1000);
dataToSend = "";
}
软件说明
#define my_Serial Serial1
dtostrf(sensor_tem, 1, 1, buf);
dataToSend = "{T:" + String(buf) + "}";
Serial_com.print(dataToSend);
Serial.println(dataToSend);
delay(1000);
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