Adafruit INA260 High or Low Side Voltage, Current, Power Sensor

I2C power monitor breakout (INA260) measuring high- or low-side DC voltage, current, and calculated power with better than 1% accuracy. Configurable alert outputs and wide operating range make it suitable for battery and load monitoring.

Logical pinout · physical placement not verified

Vcc
Board power pin. Adafruit Learn states the INA260 breakout requires 2.7V to 5.5V and Vcc should match the microcontroller logic level.
Type · PowerVoltage · 2.7V to 5.5V, logic level same as Vcc
GND
Common ground for power and logic.
Type · GroundVoltage · 0V
SCL
I2C clock line with onboard 10K pullup, logic level same as Vcc.
Type · I2CVoltage · logic level same as Vcc
SDA
I2C data line with onboard 10K pullup, logic level same as Vcc.
Type · I2CVoltage · logic level same as Vcc
Vin+
Positive current-sense input. Connect to supply for high-side sensing or load ground for low-side sensing.
Type · Power
Vin-
Negative current-sense input. Connect to load for high-side sensing or board ground for low-side sensing.
Type · Power
Alert
Interrupt output for configured current, voltage, or power thresholds, also signals one-shot conversion ready.
Type · SignalVoltage · logic level same as Vcc
VBus
Bus-voltage sense pin. Adafruit Learn notes it is tied to Vin+ by default and can be used for low-side measurement wiring.
Type · Power

Pin	Type	Function	Voltage
Vcc	Power	Board power pin. Adafruit Learn states the INA260 breakout requires 2.7V to 5.5V and Vcc should match the microcontroller logic level.	2.7V to 5.5V, logic level same as Vcc
GND	Ground	Common ground for power and logic.	0V
SCL	I2C	I2C clock line with onboard 10K pullup, logic level same as Vcc.	logic level same as Vcc
SDA	I2C	I2C data line with onboard 10K pullup, logic level same as Vcc.	logic level same as Vcc
Vin+	Power	Positive current-sense input. Connect to supply for high-side sensing or load ground for low-side sensing.
Vin-	Power	Negative current-sense input. Connect to load for high-side sensing or board ground for low-side sensing.
Alert	Signal	Interrupt output for configured current, voltage, or power thresholds, also signals one-shot conversion ready.	logic level same as Vcc
VBus	Power	Bus-voltage sense pin. Adafruit Learn notes it is tied to Vin+ by default and can be used for low-side measurement wiring.

Logical pinout · physical placement not verified

Pin details

8 connections

Vcc
Board power pin. Adafruit Learn states the INA260 breakout requires 2.7V to 5.5V and Vcc should match the microcontroller logic level.
PowerVoltage · 2.7V to 5.5V, logic level same as Vcc
GND
Common ground for power and logic.
GroundVoltage · 0V
SCL
I2C clock line with onboard 10K pullup, logic level same as Vcc.
I2CVoltage · logic level same as Vcc
SDA
I2C data line with onboard 10K pullup, logic level same as Vcc.
I2CVoltage · logic level same as Vcc
Vin+
Positive current-sense input. Connect to supply for high-side sensing or load ground for low-side sensing.
Power
Vin-
Negative current-sense input. Connect to load for high-side sensing or board ground for low-side sensing.
Power
Alert
Interrupt output for configured current, voltage, or power thresholds, also signals one-shot conversion ready.
SignalVoltage · logic level same as Vcc
VBus
Bus-voltage sense pin. Adafruit Learn notes it is tied to Vin+ by default and can be used for low-side measurement wiring.
Power

Start wiring

I2C · Analog · 3.3 – 5 V · Breakout

Confirm the data interface matches your host board.

Module pins: Vcc, Vin+, Vin-, VBus, GND, SCL, SDA, Alert. Schematik maps them to your board in the app.

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Pinout