Power Pins

  • VCC - this is the power pin. To power the board, give it the same power as the logic level of your microcontroller - e.g. for a 5V microcontroller like Arduino, use 5V
  • GND - common ground for power and logic

I2C Logic Pins

  • SCL - I2C clock pin, connect to your microcontroller I2C clock line. This pin is level shifted so you can use 3-5V logic, and there's a 10K pullup on this pin.
  • SDA - I2C data pin, connect to your microcontroller I2C data line. This pin is level shifted so you can use 3-5V logic, and there's a 10K pullup on this pin.
  • ADDR/AD0 Jumper - I2C Address pin. Pulling this pin high or bridging the solder jumper on the back will change the I2C address from 0x48 to 0x49


  • STEMMA QT - These connectors allow you to connectors to dev boards with STEMMA QT connectors or to other things with various associated accessories

Other Pins

  • INT -This is the primary interrupt pin. You can setup the TMP117 to pull this low when certain conditions are met such as new measurement data being available, or if high or low temperature alerts are triggered.
  • ADDR - The address pin can be used to change the I2C address from its default value of 0x48 to another value depending on the voltage it is tied to, according to the table below

You can solder the back jumper closed to change the address from 0x48 to 0x49

ADDR Pin Voltage

7-bit I2C address (hex)

Ground (Default)

0x48

VCC (Solder Jumper)

0x49

SDA

0x4A

SCL

0x4B

This guide was first published on Dec 02, 2020. It was last updated on Dec 02, 2020.

This page (Pinouts) was last updated on Dec 01, 2021.

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