The KY-001 is a module that includes the DS18B20 digital temperature sensor. The DS18B20 is a programmable resolution digital thermometer that provides temperature readings with an accuracy of ±0.5°C in the range of -10°C to +85°C. It communicates over a 1-Wire bus, allowing multiple sensors to be connected to the same data line.

Here’s a basic overview of the KY-001 DS18B20 Temperature Sensor Module:

1. DS18B20 Sensor: The DS18B20 is a temperature sensor with a digital output. It uses the 1-Wire communication protocol, meaning that multiple DS18B20 sensors can be connected to a single data line.
2. Module Components: The KY-001 module typically includes the DS18B20 sensor along with a pull-up resistor and other necessary components for proper operation. It simplifies the use of the DS18B20 sensor in projects by providing a convenient package.
3. Pin Configuration:
   • VCC: Power supply (usually 3.3V or 5V).
   • Data (DQ): Data line for 1-Wire communication.
   • GND: Ground.
4. 1-Wire Communication: The DS18B20 sensor communicates using the 1-Wire protocol. Each sensor has a unique 64-bit address that allows multiple sensors to be connected to the same data line.
5. Resolution Configuration: The DS18B20 allows you to set the resolution of the temperature readings. The resolution can be adjusted between 9 to 12 bits, influencing the precision of the temperature measurements.