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Introduction to DS18B20:
DS18B20, a digital temperature sensor manufactured by Dallas Semiconductor, USA, uses a highly thermally conductive sealant.
Potting ensures high sensitivity of the temperature sensor and minimal temperature delay. The temperature sensor supports "one-line bus"
Interface (1-Wire), the field temperature is directly transmitted in the digital way of "one-line bus", which greatly improves the system's resistance.
Interfering. Suitable for on-site temperature measurement in harsh environments. The DS18B20 digital temperature sensor has a unique number, and the temperature acquisition device identifies the corresponding temperature sensor by number.
The DS18B20 digital temperature sensor offers unique advantages:
(1) Two-way communication between the microprocessor and the DS18B20 can be realized by only one port line when the single bus interface is used to connect to the microprocessor. Single bus has good economy and strong anti-interference ability, suitable for the harsh environment
Temperature measurement, easy to use, etc., so that users can easily set up a sensor network to guide the construction of the measurement system.
Into a new concept.
(2) Wide measurement temperature range and high measurement accuracy The measurement range of DS18B20 is -55 °C ~ + 125 °C; in the range of -10~+ 85 °C, the accuracy is ± 0.5 °C.
(3) No external components are required in use.
(4) Multi-point networking function Multiple DS18B20s can be connected in parallel on a single single line to achieve multi-point temperature measurement.
(5) Flexible power supply mode The DS18B20 can obtain power from the data line through internal parasitic circuits. Therefore, when
When the timing on the data line meets certain requirements, the external power supply can be omitted, thereby making the system structure simpler and more reliable.
(6) Measurement parameters configurable The measurement resolution of the DS18B20 can be set by the program 9~12 bits.
(7) Negative voltage characteristics When the polarity of the power supply is reversed, the thermometer will not burn out due to heat, but it will not work properly.
(8) Power-down protection function The DS18B20 contains EEPROM internally. After the system is powered off, it can still save points.
The setting value of the resolution and alarm temperature.
DS18B20 has a smaller size, wider voltage, more economical, and a smaller package size, wider power
The range of pressure is suitable for building its own economical temperature measurement system, so it is also favored by designers.
| Registration Date | 2018/10/19(Year/Month/Date) |
|---|---|
| Buyer / Seller in EC21 | Seller |
| Business Type | Trading Company |
| Year established | 2012 |
| Employees total | 1 - 5 |
| Annual revenue | USD 100,000 - 500,000 |
| Company | Shenzhen Tuyu Trading Co., Ltd. |
|---|---|
| Address | Rm202, the 13rd Building, Honggang West Village, Honggang Road, Luohu District,ShenzhenGuangdong518029China |
| Phone | 86 - 755 - 44757812 |
| Contact | Nicole |