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LM75 Temperature Sensor Module

This LM75 Temperature Sensor Module is specifically designed for the Banana Pi but it can also be used with the Arduino. This module uses the NXP LM75 Temperature IC. The LM75 temperature sensor includes a delta-sigma analog-to-digital converter and a digital over-temperature detector.


Pin Configuration of LM75 Temperature Sensor Module

Pin Name




The Vcc pin powers the module, typically with +5V


Power Supply Ground


Over-temperature Shutdown Pin


Serial Clock Input. Open drain. Connected through a pullup resistor


Serial-Data Input/output Line. Open drain. Connect through a pullup resistor


LM75 Temperature Sensor Module Features & Specifications

  • Operating Voltage: 3.3V to 5V DC
  • Range: -25°C~125°C
  • LM75 based design
  • Low Operating Supply Current: 250µA
  • I²C Bus Interface
  • Easy to use with Microcontrollers or even with normal Digital/Analog IC
  • Small, cheap and easily available


Alternate Sensor Modules: IR Sensor Module, LDR Sensor Module, TP4056A Module, DS3231 RTC Module, TMC2209 Stepper Motor Driver Module, DRV8825 Stepper Motor Driver Module, A4988 Stepper Motor Driver Module, NEO-6MV2 GPS Module, Joystick Module, EM18 - RFID Reader ModuleADXL335 Accelerometer Module, HMC5883L Magnetometer Module, Soil Moisture Sensor

Related Components: LM75 IC, Capacitor, Resistor


Brief about the LM75 Temperature Sensor Module

This LM75 Temperature Sensor module consists of an LM75 IC, resistors, capacitor, Power LED in an integrated circuit. Temperatures sensing range for this module is from−25°C to +125°C

LM75 Temperature Sensor Module Description


LM75x Digital Temperature Sensor IC

The LM75 is an industry-standard digital temperature sensor with an integrated Sigma-Delta analog-to-digital converter and I2C interface. The LM75 provides 9-bit digital temperature readings with an accuracy of ±2°C from -25°C to 100°C and ±3°C over –55°C to 125°C.


How to Use the LM75 Temperature Sensor Module

LM75 Temperature Sensor Module consists of five pins i.e. VCC, GND, OS, SCL, and SDA. This module is pin-compatible with Banana Pi so you can directly mount it on Banana Pi. The internal circuit diagram of this module is given below. SCL and SDA pins are connected through 4.7K ohm pull-up resistors.

LM75 Temperature Sensor Module Internal Circuit Diagram


Applications of LM75 Temperature Sensor Module

  • Industrial controllers
  • Environmental monitoring
  • Smart home
  • Interactive devices

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