Arduino UNO 3で温度センサー、Grove-Temperature_Sensorで遊ぶ

参考

結果

プログラム(サンプルそのまま)

/*
/* Grove - Temperature Sensor demo v1.0
*  This sensor detects the environment temperature,
*  Connect the signal of this sensor to A0, use the
*  Serial monitor to get the result.
*  By: https://www.seeedstudio.com
*/
#include <math.h>
int a;
float temperature;
int B=3975;                  //B value of the thermistor
float resistance;

void setup()
{
    Serial.begin(9600);
}

void loop()
{
    a=analogRead(0);
    resistance=(float)(1023-a)*10000/a; //get the resistance of the sensor;
    temperature=1/(log(resistance/10000)/B+1/298.15)-273.15;//convert to temperature via datasheet&nbsp;;
    delay(1000);
    Serial.print("Current temperature is ");
    Serial.println(temperature);
}