小米加OTG加PL2303加山寨Arduino加18B20
本帖最后由 hxpasd 于 2013-11-17 00:21 编辑http://v.youku.com/v_show/id_XNjM1NzEyNzk2.htmlhttp://v.youku.com/v_show/id_XNjM1Njk4NTQw.html
<P>#include <OneWire.h>
// OneWire DS18S20, DS18B20, DS1822 Temperature Example
//
// http://www.pjrc.com/teensy/td_libs_OneWire.html
//
// The DallasTemperature library can do all this work for you!
// http://milesburton.com/Dallas_Temperature_Control_Library
OneWire ds(2); // on pin 10
void setup(void)
{
Serial.begin(9600);
//pinMode(2,OUTPUT);
//digitalWrite(2,HIGH);
}
void loop(void)
{
byte i;
byte present = 0;
byte type_s;
byte data;
byte addr;
float celsius, fahrenheit;
if ( !ds.search(addr))
{
Serial.println("No more addresses.");
Serial.println();
ds.reset_search();
delay(250);
return;
}
Serial.print("ROM =");
for( i = 0; i < 8; i++)
{
Serial.write(' ');
Serial.print(addr, HEX);
}
if (OneWire::crc8(addr, 7) != addr)
{
Serial.println("CRC is not valid!");
return;
}
Serial.println();
// the first ROM byte indicates which chip
switch (addr)
{
case 0x10:
Serial.println(" Chip = DS18S20"); // or old DS1820
type_s = 1;
break;
case 0x28:
Serial.println(" Chip = DS18B20");
type_s = 0;
break;
case 0x22:
Serial.println(" Chip = DS1822");
type_s = 0;
break;
default:
Serial.println("Device is not a DS18x20 family device.");
return;
}
ds.reset();
ds.select(addr);
ds.write(0x44,1); // start conversion, with parasite power on at the end
delay(2000); // 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(" Data = ");
Serial.print(present,HEX);
Serial.print(" ");
for ( i = 0; i < 9; i++)
{</P>
<P> // 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();
</P>
<P>// convert the data to actual temperature
unsigned int raw = (data << 8) | data;
if (type_s)
{
raw = raw << 3; // 9 bit resolution default
if (data == 0x10)
{
// count remain gives full 12 bit resolution
raw = (raw & 0xFFF0) + 12 - data;
}
} </P>
<P> else
{
byte cfg = (data & 0x60);
if (cfg == 0x00) raw = raw << 3; // 9 bit resolution, 93.75 ms
else if (cfg == 0x20) raw = raw << 2; // 10 bit res, 187.5 ms
else if (cfg == 0x40) raw = raw << 1; // 11 bit res, 375 ms
// default is 12 bit resolution, 750 ms conversion time
}
celsius = (float)raw / 16.0;
fahrenheit = celsius * 1.8 + 32.0;
Serial.print(" Temperature = ");
Serial.print(celsius);
Serial.print(" Celsius, ");
Serial.print(fahrenheit);
Serial.println(" Fahrenheit");
}</P>折腾成功，优酷视频审核中 沙发抢到了！ 这个，是高级货 高手救命，如何把arduino中的float数据通过串口，传到processing中，并还原为float？？？？？ 这个apk是什么诶 fuwen0202 发表于 2013-11-17 13:24
这个apk是什么诶
串口调试工具。 kingone 发表于 2013-11-17 11:45
高手救命，如何把arduino中的float数据通过串口，传到processing中，并还原为float？？？？？
我是纯手艺人，程序不行。我是手艺加百度。 PL2303插手机不需要驱动么？ 楼主可以上传你的手机端的程序apk文件吗，找了好几个都是蓝牙串口，或者发到我的邮箱[email protected]，十分感谢！ 呃，小米otg的串口号是啥。。4
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