2016年2月29日 (一) 16:54的版本

1 概述

2 示例

void setup()
{
  Serial.begin(115200);
}

void loop() {
  int vd = analogRead(A0);
  //Serial.println(vd);
  float vvd = 1.0*vd/1023;
  //Serial.println(vvd);
  float rtd = (3.3 - vvd) * 300 / vvd;
  //Serial.print("rtd = ");
  //Serial.println(rtd);

  Serial.print("temp = ");
  Serial.println(rtd * 20/1078);
  delay(1000);
}

3 资源

• http://martin.engineer/wp/?p=453

• http://openenergymonitor.org/emon/buildingblocks/rtd-temperature-sensing
• http://forum.arduino.cc/index.php?topic=16731.0
• http://stackoverflow.com/questions/21644642/how-to-connect-pt-1000
• http://41j.com/blog/2015/01/esp8266-analogue-input/