TMP117 - I2C temperature sensor - high accuracy - STEMMA QT / Qwiic - Adafruit 4821

High precisiontemperature sensorfrom Adafruit. It has an embeddedTMP117chip that provides accurate measurement in the range of-55°C to 155°C, with an accuracy of0.1°C to 0.3°C(depending on the temperature value). It is powered from 3 V to 5 V DC. The sensor is compatible with Arduino and Raspberry Pi, it can be programmed usingArduino IDEenvironment or usingPythonlanguage.

Connection diagram of temperature sensor from Adafruit using STEMMA QT / Qwiic connector andMetro board.

The sensor can be connected in two ways. The first is via the solder pads, to which agoldpinstrip with a 2.54 mm pitch must be soldered. Alternatively, the sensor is also equipped withSTEMMA QT /Qwiicconnector, which allows for quick and convenient connection of the module without soldering. The picture on the right shows how to connect the sensor using STEMMA QT / Qwiic connector and Metro board -equivalent of popular Arduino board.

• VCC- power supply pin from 3V to 5V DC
• GND- system ground pin
• SCL- I2C logic pin, communication interface clock line pin
• SDA- I2C logic pin, communication interface data line pin
• ADDR/AD0jumper - configurable I2C address pin, allows to change interface address from 0x48 to 0x49
• INT- interrupt pin

• Module: high precision temperature sensor
• Chip: TMP117
• Compatible with Arduino and Raspberry Pi
• Supply voltage: from 3 V to 5 V
• Temperature measurement range: from -55°C to 155°C
• Measurement accuracy:
  • ± 0.1°C (maximum) from -20°C to +50°C
  • ± 0.15°C (maximum) from -40°C to +70°C
  • ± 0.2°C (maximum) from -40°C to +100°C
  • ± 0.25°C (maximum) from -55°C to +125°C
  • ± 0.3°C (maximum) from -55°C to +150°C
• Resolution: 16 bits
• Communication interface: I2C
• Interface address: 0x48
• Connectors:
  • STEMMA QT / Qwiic
  • Soldering fields for goldpin leads
• Dimensions: 25.5 x 17.7 x 4.6 mm

• TMP117 temperature sensor
• Goldpin strip - 2.54 mm pitch

• Manufacturer website: Adafruit 4821
• User guide
• Library for Arduino environment
• TMP117 technical documentation
• EagleCAD files to download on GitHub
• Schematics