3 Pcs Ds18B20 Single-Bus Digital Temperature And Humidity Sensor Module, 5.5V

Package includes 2 Pcs Temperature Module DS18B20 When the power is turned on,the power indicator light D1 will light up The serial number of a 64 bit read-only memory storage device. √Multiple DS18B20s to be connected in parallel √A microcontroller to control many DS18B20s covering a large area This feature is very useful ①HVAC Environmental Control ②Detecting the temperature of buildings ③Testing instrument or machine testing At most 8 can be connected in parallel to achieve multi-point temperature measurement. If there are too many, the power supply voltage will be too low, resulting in unstable signal transmission. High-speed memory area inside the device contains : ①Temperature Registers:Two bytes used to store the data output by the temperature sensor ②Upper and lower temperature alarm registers (TH and TL):One byte ③Configuration registers:One byte The configuration register allows the user to set the accuracy of temperature to 9-12 bits, corresponding to resolutions of 0.5 ° C, 0.25C, and 0.125 ° C. The TH, TL, and configuration registers are EEPROMs, and the stored data will not disappear when the device is powered down. Another feature of DS18B20 is its ability to operate without external power supply. When the bus is in a high level state, the DO is connected to the pull-up resistor to supply power to the device through a single bus.The bus signal in a high-level state charges the internal capacitor (Cpp), which provides energy to the device when the bus is in a low-level state.This form of energy supply is called a "parasitic power supply", and in the parasitic power supply mode, the VDD pin must be grounded.As an alternative, the DS18B20 can also be connected to an external power supply through the VDD pin. Built in pull-up resistor onboard power indicator light.

Product Features

  • 【Parameter Introduction】Working voltage: 3-5.5V；Temperature range: (-67°F~+257°F/-55°C~125°C) while leaving 3P round hole socket for easy insertion and removal of DS18B20 chip.
  • 【High-Quality Electronics Components】: With top-of-the-line electronics components, ensuring reliable and long-lasting performance.The chip pins Built in pull-up resistor onboard power indicator light.
  • 【Temperature Sensor Module】:The internal high-speed memory area of the DS18B20 single bus digital temperature sensor contains two bytes of temperature registers, one byte of upper and lower temperature alarm registers (TH and TL), and one byte of configuration registers.
  • 【Efficient Steps】:The Sensor Module Board is equipped with DS18B20 chips and a 3P circular socket for easy insertion and removal of DS18B20 chips
  • 【NOTE】:VCC:Connect the POSITIVE power supply.DQ:Sensor data output.GND:Connect the NEGATIVE power supply.Do not reverse the positive and negative connections for correct wiring



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