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.
Board power pin. Adafruit Learn states the INA260 breakout requires 2.7V to 5.5V and Vcc should match the microcontroller logic level.
Common ground for power and logic.
I2C clock line with onboard 10K pullup, logic level same as Vcc.
I2C data line with onboard 10K pullup, logic level same as Vcc.
Positive current-sense input. Connect to supply for high-side sensing or load ground for low-side sensing.
Negative current-sense input. Connect to load for high-side sensing or board ground for low-side sensing.
Interrupt output for configured current, voltage, or power thresholds, also signals one-shot conversion ready.
Bus-voltage sense pin. Adafruit Learn notes it is tied to Vin+ by default and can be used for low-side measurement wiring.
| Pin | Position | 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 | signal | I2C clock line with onboard 10K pullup, logic level same as Vcc. | logic level same as Vcc | |
| SDA | signal | 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. |
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.
INA-series I2C monitors, Hall-effect sensors like the ACS723 and Gravity 20A/50A boards, and non-invasive CT clamps for everything from 3.3V rail telemetry to mains current sensing.
0.28 Inch LED Digital DC Voltmeter - Green visual preview0.28 Inch LED Digital DC Voltmeter - Green
4-ch Current/Voltage/Power Monitor HAT visual preview4-ch Current/Voltage/Power Monitor HAT
Adafruit INA219 FeatherWing visual previewAdafruit INA219 FeatherWing
Adafruit INA219 High Side DC Current Sensor Breakout STEMMA QT visual previewAdafruit INA219 High Side DC Current Sensor Breakout STEMMA QT
Adafruit INA228 I2C 85V 20-bit Power Monitor STEMMA QT / Qwiic visual previewAdafruit INA228 I2C 85V 20-bit Power Monitor STEMMA QT / Qwiic
Adafruit INA237 85V 10A DC Current Voltage Power Monitor visual previewAdafruit INA237 85V 10A DC Current Voltage Power Monitor
Adafruit INA238 DC Current Voltage Power Monitor STEMMA QT visual previewAdafruit INA238 DC Current Voltage Power Monitor STEMMA QT
Adafruit INA3221 Triple Power Monitor STEMMA QT / Qwiic visual previewAdafruit INA3221 Triple Power Monitor STEMMA QT / Qwiic
Gravity: Analog 20A Current Sensor (AC/DC) visual previewGravity: Analog 20A Current Sensor (AC/DC)
Gravity: Analog 50A Current Sensor (AC/DC) V1 visual previewGravity: Analog 50A Current Sensor (AC/DC) V1
Gravity: Analog AC Current Sensor (20A) visual previewGravity: Analog AC Current Sensor (20A)
Gravity: Analog Current Sensor 50A (AC/DC) V2 visual previewGravity: Analog Current Sensor 50A (AC/DC) V2
Biomedical Sensor Pad (10 pack) visual preview
BOSON: Heart Rate Monitor Sensor i20 visual preview
Capacitive Fingerprint Reader visual preview
Capacitive Fingerprint Reader (B) visual previewUART/I2C fingerprint modules, MAX30102 PPG breakouts, and analog ECG/EMG front-ends for access control and hobby biometric sensing.
Sensors · Biometric sensors · 25 parts
0.3M Pixel Serial JPEG Camera Module visual preview
100X Industrial Microscope Lens for Raspberry Pi HQ Camera visual preview
12.3MP Camera Module for NVIDIA Jetson Nano & Raspberry Pi CM3 visual preview
2.4G Wireless Video Transmission Module (640*480 Resolution) visual previewPi CSI modules, USB cameras, MCU-class OV2640/OV5640 boards, on-camera AI like HuskyLens and OpenMV, and thermal or ToF imagers — over 130 listings across very different pipelines.
Sensors · Cameras & vision · 141 parts
25m Long Distance ToF Laser Sensor (±3cm Accuracy, 100Hz, 100K LUX Resistant) visual preview
4-20HR-MaxSonar-WRMI MB7489 Waterproof Ultrasonic Distance Sensor (50~500cm, IP67) visual preview
4-20SC-MaxSonar-WRMI MB7789 Ultrasonic Distance Sensor visual preview
5.8GHz Microwave Radar Module visual previewAbout 180 listings spanning VL53-series ToF breakouts, HC-SR04 and MaxSonar ultrasonics, 360° triangulation LiDARs, IR proximity sensors, 24GHz mmWave presence detection and laser break-beam sensors.
Sensors · Distance sensors · 177 parts
4mm Mini Circular Force Sensor visual preview
Adafruit HX711 24-bit ADC for Load Cells / Strain Gauges visual preview
Adafruit Square Force-Sensitive Resistor (FSR) visual preview
Circular Force Sensor (Diameter: 18.3mm, 20g-6kg, Thickness: 0.4mm) visual previewInterlink-style FSRs, strain-gauge load cells with HX711 amplifiers, and ready-made kits like DFRobot's Gravity I2C 1kg scale — from simple touch detection to accurate mass measurement.
Sensors · Force & weight · 28 parts