Adafruit
MLX90632 FIR Remote Thermal Temperature Sensor
· MPN: ADA6403
This compact breakout uses Melexis' MLX90632 FIR sensor to read the temperature of a target without making contact. It's handy for checking surfaces that are...
This compact breakout uses Melexis' MLX90632 FIR sensor to read the temperature of a target without making contact. It's handy for checking surfaces that are hot, cold, moving, delicate or awkward to reach with a probe, and it can also report its own local on-chip temperature.
The fitted MLX90632SLD-DCB is the medical-grade version, factory calibrated for high accuracy in the 35 to 42˚C range for medical applications. You can also switch it into extended mode to measure object temperatures from -20 to 100˚C. With a 50˚ field of view, it works best when used only a few centimetres from the item being measured, rather than averaging a larger area from farther away.
Adafruit has mounted the sensor on a custom PCB in the STEMMA QT form factor, with JST-SH connectors on both sides for quick solderless I2C wiring. These connectors are compatible with SparkFun Qwiic, so it's easy to add into an existing I2C chain with a suitable cable. A strip of header is also included if you'd prefer to solder it into breadboard or perfboard.
On-board voltage regulation and level shifting mean it can be used with both 3V and 5V microcontrollers or microcomputers over I2C, making it a neat fit for Arduino-compatible boards, Raspberry Pi and similar platforms.
Features:
- Non-contact sensing: Measures the temperature of an object it is pointed at without touching it.
- Medical-grade version: Breakout includes the MLX90632SLD-DCB sensor.
- Medical application accuracy: Factory calibrated with an accuracy of ±0.2˚C within the narrow object temperature range from 35 to 42˚C for medical applications.
- Extended measurement mode: Can measure object temperatures from -20 to 100˚C.
- Local temperature reading: Can also measure the local temperature on chip.
- STEMMA QT form factor: Custom PCB makes interfacing quick and tidy.
- Qwiic compatible: STEMMA QT connectors on either side are compatible with SparkFun Qwiic I2C connectors.
- Header included: Includes a bit of header for breadboard or perfboard installation.
- 3V and 5V compatible: On-board level shifting and voltage regulation support use with any 3V or 5V microcontrollers / microcomputers that have I2C.
Specifications:
- Calibration: Factory calibrated
- Temperature calculation: External ambient and object temperature calculation
- Standard measurement resolution: 0.02°C
- Medical measurement resolution: 0.01°C
- Power: Supply voltage of 3.3V, supply current 1mA (sleep current less than 2.5uA)
- Interface: I2C compatible digital interface
- I2C address: Software definable I2C address with 1 LSBbit external address pin
- Field of View: 50°
- Refresh rate: Default refresh rate 0.5s, configurable between 16ms and 2s
- Post-calibration: Integrated post-calibration option
- Product Dimensions: 25.5mm x 17.7mm x 4.7mm / 1.0" x 0.7" x 0.2"
- Product Weight: 1.7g / 0.1oz
A compatible STEMMA QT or Qwiic cable is needed for plug-and-play use and is not included. This board is a good fit for non-contact surface temperature checks, compact instruments, appliance monitoring and medical or lab prototypes where a touch probe isn't practical.
Jargon buster
Plain-language definitions for the technical terms used above.
- breakout
- A breakout is a small circuit board that makes a tiny or hard-to-solder component easier to connect to with standard pins. It matters because this OLED module can be wired into a microcontroller project without needing to solder directly to the display’s fine contacts.
- I2C
- I2C is a two-wire communication bus used by many sensors and small modules. It matters because several I2C devices can share the same two wires, but each device needs a compatible address and your controller must support I2C.
- I2C address
- An I2C address is the number a device uses so a microcontroller can tell it apart from other devices on the same I2C bus. It matters because two devices with the same fixed address may conflict if used together.
- PCB
- A printed circuit board is a rigid board with copper tracks that connect electronic parts without loose wires. For this kit, the PCBs also form the airplane shape, so they are both the circuit base and part of the finished model.
- Qwiic
- Qwiic is a plug-in connector system for I2C devices that uses small 4-pin cables, so you can connect compatible sensors without soldering. It matters because your controller or adapter also needs Qwiic, or you will need a cable or breakout to wire it up.
- STEMMA
- A plug-and-cable connection system used on some maker electronics boards to make wiring simpler. If a product uses STEMMA, you need the matching cable or connector type to plug it in without soldering.
- STEMMA QT
- A small plug-in connector system for I2C boards that lets you connect compatible sensors and controllers without soldering. It matters because it can make wiring faster and less error-prone, especially when adding several small modules to a project.
Find this product in
Sensors & Input
MLX90632 Datasheet
Datasheet · 1.1 MB · Click any page to view full size
Supplier page — adafruit.com
Supplier Description · 1.1 MB · Click any page to view full size
