Max30205 Module

🔹 MAX30205MTA Digital Temperature Sensor Module – CJMCU-30205

The MAX30205 is a high-accuracy digital temperature sensor optimized for human body temperature monitoring, delivering clinical-grade ±0.1°C precision in the 37°C–39°C range . This CJMCU-30205 breakout board provides a compact I2C interface for health monitoring, fever screening, and wearable devices .

✅ Specifications:

Sensor IC: MAX30205MTA+ (Maxim Integrated / Analog Devices)

Temperature Range: 0°C to +50°C (with ±0.1°C accuracy in human body range)

Accuracy: ±0.1°C (35.8°C–41°C)

Resolution: 16-bit (0.00390625°C/LSB)

Interface: I2C (400kHz)

I2C Address: 0x48 (default)

Supply Voltage: 2.7V – 3.3V DC

Operating Current: 600µA

Board Dimensions: ~15.5mm x 11mm (module)

IC Package: 8-TDFN (3x3mm)

📦 Features:
✔️ ±0.1°C clinical-grade accuracy in human body temperature range
✔️ I2C digital interface – no ADC required
✔️ Programmable overtemperature alarm/shutdown output
✔️ Ultra-low power (600µA) – suitable for battery-powered devices
✔️ 16-bit resolution for high precision measurements
✔️ One-shot temperature capture and shutdown modes
✔️ CJMCU breakout with 4-pin header (VCC, GND, SCL, SDA)

📦 Applications:
✔️ Medical-grade thermometry and patient monitoring
✔️ Wearable health devices and smart patches
✔️ Fever screening systems (e.g., COVID-19)
✔️ IoT health tracking and remote patient monitoring
✔️ Skin temperature and contact measurement devices
✔️ Industrial temperature monitoring (within 0°C–50°C range)

⚠️ Important Note:

3.3V logic only. Connecting to 5V may damage the sensor . Use a level shifter with 5V logic microcontrollers.

Proper thermal contact is essential for accurate body temperature readings; ensure good contact with the measurement surface .

I2C pull-up resistors (4.7kΩ recommended) may be required for stable communication .