
MLX90614 non-contact IR temperature sensor measuring -70 °C to +380 °C over a 90° FOV via I2C. This is the 3 V variant; use the 5 V version for classic Arduinos.
Power input for the MLX90614 sensor; Adafruit states there is a 3V version and that the four pins are power, ground, I2C clock, and I2C data.
Ground reference; Adafruit states the four pins are power, ground, I2C clock, and I2C data.
I2C clock line; Adafruit states the sensor uses I2C and the four pins include I2C clock.
I2C data line; Adafruit states the sensor uses I2C and the four pins include I2C data.
| Pin | Position | Type |
|---|
I2C · SPI · Single data line · 3.3 – 5 V · Breakout
Confirm the data interface matches your host board.
Module pins: VCC, GND, SCL, SDA. Schematik maps them to your board in the app.
DHT/AHT sensors, SHT-series humidity chips, BMP and LPS barometers, BME combined sensors, DS18B20 probes, thermocouple amplifiers and non-contact MLX IR sensors — about 165 listings, very different accuracy classes.
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 · 24 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 · 139 parts
0.28 Inch LED Digital DC Voltmeter - Green visual preview
4-ch Current/Voltage/Power Monitor HAT visual preview
Adafruit INA219 FeatherWing visual preview
Adafruit INA219 High Side DC Current Sensor Breakout STEMMA QT visual previewINA-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.
Sensors · Current & voltage · 24 parts
VL53L1X Time of Flight (ToF) Sensor Breakout visual preview
Solid State TOF LiDAR - CE30-A visual preview
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 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 · 178 parts
| Function |
|---|
| Voltage |
|---|
| VCC | power | Power input for the MLX90614 sensor; Adafruit states there is a 3V version and that the four pins are power, ground, I2C clock, and I2C data. | 3V | |
| GND | ground | Ground reference; Adafruit states the four pins are power, ground, I2C clock, and I2C data. | 0V | |
| SCL | signal | I2C clock line; Adafruit states the sensor uses I2C and the four pins include I2C clock. | 3V logic | |
| SDA | signal | I2C data line; Adafruit states the sensor uses I2C and the four pins include I2C data. | 3V logic |
Gravity: Analog LM35 Temperature Sensor For Arduino
Analog temperature-only module. Useful when humidity is not needed and the controller has an ADC input.