User Manual

Power Pins
The sensor on the breakout requires between a 2.7V and 5.5V, and can be easily used with most microcontrollers
from an Arduino to a Feather or something else.
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 micro like Arduino, use 5V
GND - common ground for power and logic
I2C Logic Pins
SCL - I2C clock pin, connect to your microcontrollers I2C clock line. The logic level is the same as Vcc and it has
a 10K pullup already on it.
SDA - I2C data pin, connect to your microcontrollers I2C data line. The logic level is the same as Vcc. and it has a
10K pullup already on it.
Other Pins
Vin+ is the positive input pin. Connect to supply for high side current sensing or to load ground for low side
sensing.
Vin- is the negative input pin. Connect to load for high side current sensing or to board ground for low side
sensing
Alert is the interrupt output pin. You can configure the interrupt to trigger for various 'reasons' such as going over
or under a configured current, voltage, or power setting. Also used to signal a one shot conversion being ready.
Voltage level is the same as Vcc.
VBus is the bus voltage. By default it is tied to Vin+ however for low side measurements you should cut the
VB jumper on the right side of the breakout and connect VBus to the power bus so it can accurately calculate
the bus voltage and total power (VBus * Current) draw.
© Adafruit Industries
https://learn.adafruit.com/adafruit-ina260-current-voltage-power-sensor-
breakout
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