MAX31865 PT100/PT1000 RTD Temperature Sensor Module (SPI Platinum RTD Interface Board)

The MAX31865 PT100/PT1000 RTD Temperature Sensor Module is a high-precision temperature measurement interface designed for PT100 and PT1000 platinum Resistance Temperature Detectors (RTDs). Based on the MAX31865 RTD-to-Digital Converter IC, the module accurately converts RTD resistance changes into digital temperature data with excellent accuracy, high resolution, and low noise performance.

The module communicates through an SPI interface, allowing easy integration with Arduino, ESP32, STM32, Raspberry Pi, and other microcontroller platforms. It is ideal for industrial automation, HVAC systems, laboratory instruments, environmental monitoring, process control, and embedded temperature measurement applications requiring reliable and precise temperature sensing.

Key Features -

• Supports PT100 and PT1000 platinum RTD sensors

• Based on MAX31865 RTD-to-Digital Converter IC

• High-precision temperature measurement

• SPI digital communication interface

• Configurable 2-wire, 3-wire, and 4-wire RTD support

• Integrated fault detection and diagnostics

• Configurable bias voltage and noise filtering

• Low noise and high-resolution measurement

• Compatible with 3.3V and 5V systems

• Compact PCB module for embedded applications

Specifications -

• Product type - RTD Temperature Sensor Interface Module

• Converter IC - MAX31865

• Supported sensors - PT100 and PT1000 RTDs

• RTD wiring - 2-Wire, 3-Wire, and 4-Wire Compatible

• Communication interface - SPI

• Operating voltage - 3.3V to 5V DC

• Measurement range - Depends on Connected RTD Sensor

• Measurement accuracy - High Precision RTD Measurement

• Mounting type - PCB Module

• Application - Temperature Monitoring and Control Systems

Applications -

• Industrial temperature monitoring

• Process control systems

• HVAC equipment

• Environmental monitoring stations

• Scientific instrumentation

• Laboratory temperature measurement

• Industrial automation

• Embedded control systems

• Arduino and ESP32 projects

• DIY electronics projects