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Small green circuit board with black chips and a white wire attached

Graviton

Graviton MAX31865 V1.0 PT100 PT1000 RTD Temperature Sensor Module

SKU CH-QJG6-DF3KY

Converts PT100 or PT1000 resistance thermometers to digital readings for SKR MINI E3 boards

  • Supports PT100 and PT1000 RTD sensors for accurate temperature measurement
  • MAX31865 chip converts resistance to digital data with high precision
  • Compatible with two-wire, three-wire and four-wire sensor configurations
  • 5V power input simplifies integration with common microcontroller boards
  • Designed for SKR MINI E3 motherboards with integrated driver support

What this module does

The Graviton MAX31865 V1.0 converts PT100 and PT1000 resistance temperature detectors into digital readings for a 3D printer control board. It accepts two-wire, three-wire and four-wire sensor configurations and runs from a 5 V supply. The board is intended for makers adding high-accuracy temperature sensing to a printer electronics upgrade.

Compatibility check

Verify that your mainboard has an integrated driver compatible with the MAX31865 interface, such as the SKR MINI E3 mentioned by the supplier. Confirm the sensor wiring matches the two, three or four-wire option you plan to use. Ensure a stable 5 V source is available on the header you will connect to.

Build integration

The module plugs directly into the controller’s expansion header and requires a PT100 or PT1000 probe wired to the screw terminals. It frees the firmware from relying on less accurate thermistor tables and enables precise hot-end or chamber monitoring. The supplied wire harness simplifies the connection to the sensor.

Highlights

  • Supports PT100 and PT1000 RTD sensors for accurate temperature measurement
  • MAX31865 chip converts resistance to digital data with high precision
  • Compatible with two-wire, three-wire and four-wire sensor configurations
  • 5V power input simplifies integration with common microcontroller boards
  • Designed for SKR MINI E3 motherboards with integrated driver support

Specifications

No published specifications for this item yet.

Questions about this item

Does the module include the PT100 or PT1000 probe, or do I need to buy the sensor separately?

The box contains one MAX31865 V1.0 board and one wire. The PT100 or PT1000 RTD probe itself is not included and must be purchased separately.

Should I choose the PT100 or PT1000 version for use with a SKR MINI E3 motherboard?

The same MAX31865 V1.0 module supports both PT100 and PT1000 sensors, so you select the probe that matches your application and wire it to the board.

What temperature accuracy can I expect from the MAX31865 chip when it is installed in a 3D printer?

The MAX31865 converts RTD resistance to digital values with high resolution, enabling precise temperature control for the hot-end or heated bed on a SKR MINI E3 system.

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