Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Chip Model	MAX31865
Sensor Type	RTD Platinum (PT100/PT1000)
Interface	SPI
Supply Voltage	3.0V to 3.6V
Temperature Range	-200°C to +850°C
Resolution	15-bit
Accuracy	±0.1% of reading
Fault Detection	Open/Short Circuit
PCB Dimensions	22mm x 18mm
Mounting Holes	4 x 3mm

6 reviews

Anonymous

Mar 31, 2026

Rating: 4/5

Works as expected

No complaints here. It reads PT100 sensors accurately. The only minor issue is that the documentation could be slightly clearer regarding the reference resistor selection, but online forums helped.

Anonymous

Mar 27, 2026

Rating: 4/5

Good accuracy, needs careful wiring

The sensor provides accurate data once set up correctly. You must ensure your wiring is short and shielded to avoid noise interference, which is standard for RTDs. The library support is excellent.

Anonymous

Mar 12, 2026

Rating: 5/5

Perfect for Arduino Projects

This module works flawlessly with my Arduino Uno. The SPI communication is stable, and the temperature readings are consistent when compared to my calibrated thermometer. Highly recommended for DIY electronics.

Anonymous

Mar 08, 2026

Rating: 5/5

Excellent for university projects

Bought this for my final year engineering project. It was easy to interface with Raspberry Pi and provided the precision needed for our thermal analysis experiments. Great value for money.

Anonymous

Mar 05, 2026

Rating: 5/5

Compact and reliable

Small form factor makes it easy to integrate into tight spaces on my robot chassis. The fault detection feature saved me when a wire came loose during testing. Solid build quality.

Anonymous

Mar 02, 2026

Rating: 5/5

Great for fermentation monitoring

I used this to monitor temperatures in my brewing setup. It handles the moisture well inside the enclosure and gives precise readings throughout the fermentation process. Very satisfied.

5 FAQ

Q: Does the package include the PT100 probe itself?

A: No, this listing is for the breakout board module only. The PT100 or PT1000 temperature probe must be purchased separately and wired to the terminal blocks on the module.

Q: Can I connect multiple modules to one SPI bus?

A: Yes, you can daisy-chain or select multiple modules by connecting their CS (Chip Select) pins to different GPIO pins on your microcontroller while sharing the CLK, MISO, and MOSI lines.

Q: Is a 5V logic level compatible with this board?

A: The module operates at 3.3V logic levels. If you are using a 5V microcontroller like an Arduino Uno, you should use a logic level converter or ensure your board has 3.3V tolerant SPI pins.

Q: What is the maximum cable length recommended for the RTD sensor?

A: For best accuracy, we recommend keeping the lead wires under 3 meters. If longer distances are required, please use shielded twisted-pair cables to minimize electromagnetic interference.

Q: Does this module support both PT100 and PT1000 sensors?

A: Yes, the MAX31865 chip supports both PT100 and PT1000 sensors. You simply need to configure the software library or jumpers according to the specific sensor type you are using.

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