Specification:
Product name: Digital Thermal / Temperature Sensor Module with Thermistor- for Arduino
Our company provide original DS18B20 digital sensor and its further assembly. The assemblied sensor use metal house( tubing type or screw type) and 3 screen wires to enhance ability of anti-noise.
The DSl8B20 digital thermometer provides 9-bit (binary) temperature readings indicating device temperature information via single-wire interface.
Into the DSl8B20 or sent from the DSl8B20 So from the host CPU to the DSl820 only one line (and ground) DSl8B20
The power supply can be provided by the data line itself without the need for an external power source because each DSl820 has been given at the factory
Bit is the only serial number of each device. The last 8 bits are the first 56 bits CRC (Cyclic Redundancy Check) code DSl8B20 also used for storage.
The measured temperature values of the two 8-bit memory RAM numbers are 0 and No. 1 memory stored in the temperature value of the symbol if the temperature is negative.Then No. 1 memory 8 is all 1 otherwise all 0. 0 memory for storage.Set the temperature value of the complement LSB (at least significant bit) of 1 to 0.5.
Each of the DS1820s can be set to two power supply modes.Bus power supply mode and external power supply mode to take data bus power supply can save a wire but complete the temperature measurement.
Product features:
DS18B20 sensor is digital temperature sensor. It is a usual temperature sensor with advantage of small body, accuracy measuring and strong noise screening sensor. It has good stability and can be macthed with other products.
DS18B20 pin definition:
DQ is the input/output of digital signal
GND is the power field
VDD is the input terminal of external power supply power supply (grounding when the parasitic power connection mode is connected)
Product Parameters:
| Product name |
Digital Thermal / Temperature Sensor Module with Thermistor- for Arduino |
| Electronic pressure range |
3.0~5.5v |
| Characteristics |
High accuracy of temperature measuring |
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The longer the time to take an external power supply is more than a wire but the measurement speed faster.
Single-bus technology, either through the serial port line, but also through other i / o port line interface, without passing through other conversion circuit, directly output measured temperature value.
1. Temperature range of -55 ºC ~ +125 ºC, the measurement resolution of 0.0625 ºC; -10 ~ +85 ºC when the accuracy of ± 0.5 ºC.
2. Available data lines, voltage range: 3.0 ~ 5.5V
3. Negative pressure characteristics: power polarity reverse, the thermometer is not good because of fever and burned, but can not work properly.
4. Programmable resolution of 9 to 12, the corresponding resolution of the temperature were 0.5 ºC, 0.25 ºC, 0.125 ºC and 0.0625 ºC, to achieve high-precision temperature measurement.
5. Contains 64-bit laser-corrected read-only memory.
6. Adapt to a variety of single-chip or system machine
7. Users can distinguish between the upper and lower limits of the temperature
8. Contains parasitic power supply
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