Anonymous
Apr 14, 2026
Rating: 5/5
Perfect for ESP32
Connected to ESP32 using 3.3V logic. No level shifters needed. SPI library works out of the box.
Description
Reviews
| Brand | - |
| Category | Electronic Components / Maker DIY / Computer Hardware, Monitors & Peripherals |
| Origin | - |
| Interface Protocol | SPI (4-Wire) |
| Supply Voltage | 3.0V to 3.6V |
| Supported RTD Types | PT100, PT1000 |
| Temperature Accuracy | ±0.5°C (Typical) |
| Digital Resolution | 0.0625°C |
| Wire Configuration | 2, 3, or 4-Wire Selectable |
| Operating Temperature Range | -40°C to +85°C |
| PCB Dimensions | 25.4mm x 15.2mm |
| Input Connector | 3-Pin Screw Terminal |
| Manufacturer Chip | Maxim Integrated MAX31865 |
Anonymous
Apr 14, 2026
Rating: 5/5
Perfect for ESP32
Connected to ESP32 using 3.3V logic. No level shifters needed. SPI library works out of the box.
Anonymous
Apr 03, 2026
Rating: 4/5
Good value
Works well with Arduino. Had to solder the jumpers carefully for 3-wire mode but otherwise solid.
Anonymous
Mar 31, 2026
Rating: 5/5
Better than thermocouples
For ranges under 500C, this is much more stable than K-type thermocouples. Highly recommend.
Anonymous
Feb 25, 2026
Rating: 5/5
Excellent precision
Used this for a fermentation monitor. Readings are stable and match my calibrated thermometer.
Anonymous
Feb 03, 2026
Rating: 3/5
Learning curve
Module works but requires understanding of RTD wiring. Not plug-and-play for absolute beginners.
Q: Is the library included?
A: We provide a link to compatible open-source libraries in the product description.
Q: What is the sampling rate?
A: The conversion time is typically around 60ms per reading.
Q: Does it support fault detection?
A: Yes, the MAX31865 chip includes RTD open-circuit and low/high voltage fault detection.
Q: Does this work with 5V Arduino Uno?
A: Yes, but you need a logic level converter since the module operates at 3.3V.
Q: Can I use a PT1000 sensor?
A: Yes, this module supports both PT100 and PT1000 sensors via configuration.