MAX31865 PT100-PT1000 RTD Platinum Resistance Temperature Detector Module

The MAX31865 PT100-PT1000 RTD Module is a precision temperature measurement interface board designed to work with platinum resistance temperature detectors (RTDs). It uses the MAX31865 RTD-to-digital converter IC to accurately measure resistance changes from PT100 or PT1000 sensors and convert them into precise temperature readings. The module provides stable digital output with high resolution and low noise.

This RTD interface board is ideal for industrial temperature monitoring, environmental sensing, HVAC systems, scientific instrumentation, and embedded thermal control applications requiring accurate and reliable temperature data.

KEY FEATURES

• Supports PT100 and PT1000 platinum RTD sensors
• Based on MAX31865 RTD-to-digital converter
• High precision temperature measurement
• SPI digital communication interface
• Configurable bias and filtering
• Compact module design

SPECIFICATIONS

• Converter IC – MAX31865
• Sensor Support – PT100 and PT1000
• Interface Type – SPI
• Measurement Range – Wide temperature range depending on sensor
• Accuracy – High precision RTD measurement
• Operating Voltage – 3.3V or 5V DC compatible
• Application – Temperature monitoring and control

INTERFACES

• VCC – Power supply input
• GND – Ground reference
• SCK – SPI clock
• SDI – SPI data input
• SDO – SPI data output
• CS – Chip select for SPI
• RTD+ – PT RTD positive sensor connection
• RTD- – PT RTD negative sensor connection