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Temperature Sensor Module (DS18B20) Arduino Compatible

ARD2-2201
Arduino Compatible Temperature Sensor (DS18B20)

$6.45

QTY Price
1 $6.45

Description

The new DS18B20 Temperature Sensor Module is a fully compatible Arduino platform that allows users to easily set up sensor networks. It's suitable for most DIY projects that require accurate temperature data. This module uses a single-bus digital temperature sensor DS18B20 with an external power supply voltage range of 3.0V to 5.0V (no standby power).

The DS18B20 looks like a normal transistor but be careful not to reverse the power and ground lines in order to avoid damaging it.

Test Code

# 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[12];
byte addr[8];
int Temp;

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

Serial.print("R ="); // R = 28 Not sure what this is
for (i = 0; i < 8; i++) {
Serial.print(addr [i], HEX);
Serial.print("");
}

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

if (addr[0]! = 0x28) {
Serial.print("Device is not a DS18S20 family device. \ n");
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 [i] = ds.read();
}
}

Features

  • Fully digital temperature conversion and output
  • Advanced single-bus data communication
  • Detect temperature range of -55°C to +125°C
  • Detect temperature range of -55°C to +125°C
  • Built in EEPROM, limit temperature alarm function
  • 64-bit lasered ROM, built in unique product serial number, to facilitate multi-machine mount

Specifications

Operating Voltage

3.0 - 5.0V

Measurement Accuracy

±0.5°C

Output

Digital Sensor

Sensitivity

10mV per degree Celsius

Board Colour

Black

Weight

10g

Material

PCB

Resources

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Products may differ from pictured.
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