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Measure Temperature with a Sensor Made for Embedded Builds

The MAX31865 RTD Platinum Resistance Temperature Sensor is a temperature sensor with analog and digital output designed for temperature logging, thermal control, and equipment monitoring. It is a practical fit for makers, students, and engineers who want reliable sensor data in embedded builds.

Key details include Interface: Analog and digital.

Important: Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.

Why you’ll love it

  • Easy wiring: Analog and digital
  • Maker-friendly build: Easy to use in prototypes, classroom projects, and custom electronics
  • Common controller support: Works well with Arduino, ESP32, Raspberry Pi, and similar boards
  • Project-ready sensing: temperature logging, thermal control, weather nodes, and equipment monitoring

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What you can build

This sensor is a good fit for thermostats, incubators, battery monitors, weather nodes, and thermal data loggers.

Starter bundles

Pair it with an Arduino-compatible board, ESP32, or Raspberry Pi, plus a breadboard and jumper wires for quick setup and testing.

Recommended add-ons

Useful add-ons include probe mounts, thermal paste if needed, and a data logger, depending on how you plan to power, mount, and log the sensor.

Technical specifications

Product MAX31865 RTD Platinum Resistance Temperature Sensor
Interface Analog and digital
Category thermal heat temperature sensors

Wiring & usage notes

Many modules in this style expose both analog and digital pins. Use the analog pin for raw readings and the digital pin for threshold-based switching, if available. Sensor response time depends on airflow, mounting, and thermal contact. Keep heat sources and self-heating from nearby parts in mind.

What’s in the box

1 × MAX31865 RTD Platinum Resistance Temperature Sensor

Frequently Asked Questions

What does the MAX31865 RTD Platinum Resistance Temperature Sensor measure? It is designed to measure temperature or heat.
Can I use it with Arduino, ESP32, or Raspberry Pi? Yes. It is well suited for common maker and embedded platforms, as long as you power it at the correct voltage and match the signal level to your controller.
How do I connect this Analog and digital sensor? This module may provide both analog and digital outputs, depending on how you wire and read it.
What affects accuracy? Power quality, wiring, mounting, target material, and the real environment can all affect the reading. It is best to test and calibrate in the final setup.
Is it good for prototyping? Yes. It is a practical choice for learning, proof-of-concept builds, and small automation projects.

Build with this board

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Notes from the bench

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