籣戁 发表于 2013-5-27 21:45:49

18B20

    求 这个库<OneWire.h>，写18B20温度传感器。。。。急

mbird 发表于 2013-5-27 22:15:13

本帖最后由 mbird 于 2013-5-27 22:17 编辑

OneWire_lib:http://playground.arduino.cc/Learning/OneWire
请自取

籣戁 发表于 2013-5-27 22:57:39

谢谢了，我需要的是18B20库。。。。

mbird 发表于 2013-5-27 23:16:57

本帖最后由 mbird 于 2013-5-27 23:18 编辑

你~~~要不要往下拉(http://playground.arduino.cc/Learning/OneWire)
底下的這段CODE就是你要的.. for 18S20&18B20

放心用吧 我試過沒問題
=============================
#include <OneWire.h>

// DS18S20 Temperature chip i/o
OneWire ds(10);// on pin 10

void setup(void) {
// initialize inputs/outputs
// start serial port
Serial.begin(9600);
}

void loop(void) {
byte i;
byte present = 0;
byte data;
byte addr;

if ( !ds.search(addr)) {
      Serial.print("No more addresses.\n");
      ds.reset_search();
      return;
}

Serial.print("R=");
for( i = 0; i < 8; i++) {
    Serial.print(addr, HEX);
    Serial.print(" ");
}

if ( OneWire::crc8( addr, 7) != addr) {
      Serial.print("CRC is not valid!\n");
      return;
}

if ( addr == 0x10) {
      Serial.print("Device is a DS18S20 family device.\n");
}
else if ( addr == 0x28) {
      Serial.print("Device is a DS18B20 family device.\n");
}
else {
      Serial.print("Device family is not recognized: 0x");
      Serial.println(addr,HEX);
      return;
}

ds.reset();
ds.select(addr);
ds.write(0x44,1);         // start conversion, with parasite power on at the end

delay(1000);   // maybe 750ms is enough, maybe not
// we might do a ds.depower() here, but the reset will take care of it.

present = ds.reset();
ds.select(addr);   
ds.write(0xBE);         // Read Scratchpad

Serial.print("P=");
Serial.print(present,HEX);
Serial.print(" ");
for ( i = 0; i < 9; i++) {         // we need 9 bytes
    data = ds.read();
    Serial.print(data, HEX);
    Serial.print(" ");
}
Serial.print(" CRC=");
Serial.print( OneWire::crc8( data, 8), HEX);
Serial.println();
}

籣戁 发表于 2013-5-28 10:00:25

好吧。。。谢谢

籣戁 发表于 2013-5-28 10:32:24

能把这个《OneWire.h》库压缩发给我吗？
页: [1]
查看完整版本: 18B20