Attributes

Brand	-
Category	Robotics / STEM Teaching Tools / Sensors
Origin	-
Model Number	MAX30205MTA
Interface Type	I2C
Operating Voltage	3.3V
Temperature Range	32°C to 42.5°C
Accuracy	±0.1°C
Resolution	16-bit
Package Type	TDFN-8
Communication Speed	Up to 400 kHz
Application	Human Body Temperature Monitoring
Board Dimensions	15mm x 12mm

6 reviews

Anonymous

Mar 26, 2026

Rating: 4/5

Good value for money

Works as expected for the price point. It took me a little while to calibrate it correctly, but once set up, it provides consistent readings.

Anonymous

Mar 23, 2026

Rating: 5/5

Excellent documentation support

Found plenty of libraries online to get this running quickly. The data sheet is clear, and the module breaks out all necessary pins conveniently.

Anonymous

Mar 22, 2026

Rating: 5/5

Reliable for continuous monitoring

Running this 24/7 in a test rig. No drift observed over two weeks. Highly recommend for anyone building temperature logging systems.

Anonymous

Mar 19, 2026

Rating: 5/5

Perfect for DIY Health Projects

This module is incredibly accurate and easy to interface with an Arduino. The I2C communication is stable, and the readings match my clinical thermometer almost exactly.

Anonymous

Mar 18, 2026

Rating: 4/5

Great sensor, needs careful wiring

The sensor works well once you get the pull-up resistors correct on the I2C lines. Just make sure your microcontroller supports 3.3V logic levels.

Anonymous

Mar 14, 2026

Rating: 5/5

High precision as advertised

I used this for a wearable prototype. The low power consumption and high accuracy make it ideal for battery-operated devices.

5 FAQ

Q: Is there a library available for ESP32?

A: Yes, several open-source libraries are available on GitHub and the Arduino Library Manager that support the MAX30205 with ESP32, ESP8266, and standard Arduino boards.

Q: Does this come with a heatsink or thermal pad?

A: No, the module is designed for direct skin contact or air temperature measurement and does not include additional thermal accessories. You may add your own thermal interface material if needed for specific applications.

Q: What is the update rate of the temperature readings?

A: The conversion time is typically around 260ms, allowing for roughly 3 to 4 readings per second depending on your I2C bus speed and code efficiency.

Q: Is this module compatible with 5V Arduino boards?

A: Yes, but since the sensor operates at 3.3V, you should use a logic level converter or an I2C breakout board with built-in level shifting to avoid damaging the chip.

Q: Can I connect multiple sensors on the same I2C bus?

A: The MAX30205 has configurable address pins (A0, A1, A2), allowing you to connect up to 8 unique sensors on the same I2C bus by setting different address combinations.

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