DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout - I2C Interface
DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout - I2C Interface - Image 2
DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout - I2C Interface - Image 3
DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout - I2C Interface - Image 4
SKU: SENS-3054
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DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout - I2C Interface

₹889.00 (Inclusive of all taxes)
Out of Stock

The DFRobot Fermion STS35 breakout board integrates the Sensirion STS35 digital temperature sensor, providing factory-calibrated, high-accuracy (±0.1°C) temperature readings via I2C interface for Arduino, Raspberry Pi, ESP32, and other 3.3V/5V microcontroller platforms.

Features

  • High-precision digital temperature sensor with ±0.1°C typical accuracy.
  • Wide operating range from -40°C to +125°C with 0.01°C resolution.
  • Fast I2C communication up to 1 MHz and rapid 0.5 ms startup time.
  • Integrated heating element for reliable operation in humid environments.
  • Compact breakout board with pre-soldered headers and M2 mounting holes.

Out of stock

Description

The STS35 digital temperature sensor from Sensirion delivers fully calibrated, linearized, and supply-voltage-compensated digital output, ensuring exceptional measurement stability and accuracy. Its robust MEMS-based sensing element provides high reliability and long-term stability for demanding applications.

This Fermion breakout board simplifies integration by providing a standard I2C interface, level-shifted for compatibility with 3.3V and 5V logic systems. The onboard heater allows the sensor to actively dehumidify its sensing cavity, maintaining accuracy in environments with fluctuating humidity levels.

Key Features

  • Ultra-high accuracy digital temperature sensing with ±0.1°C typical error.
  • Wide supply voltage range from 2.15V to 5.5V for flexible system integration.
  • Fast-response I2C interface supporting communication rates up to 1 MHz.
  • Integrated heating element for condensation prevention and stable performance in humid conditions.
  • Factory-calibrated output eliminates the need for user calibration.
  • Excellent long-term stability and measurement repeatability.
  • Compact PCB design with standard 0.1" header spacing and M2 mounting holes.
  • Low heater power consumption, ranging from 3.6 mW to 33 mW.

Applications

  • Precision temperature control in laboratory instrumentation and thermal cyclers.
  • Environmental monitoring in greenhouses, grain storage bins, and agricultural facilities.
  • HVAC system feedback and climate control for industrial and commercial buildings.
  • Thermal management and condition monitoring in electronic enclosures and server racks.
  • Data logging and weather station applications requiring high-accuracy ambient temperature readings.

Technical Specifications

ManufacturerSensirion (via DFRobot)
ModelSTS35
Supply Voltage2.15 VDC to 5.5 VDC
Output InterfaceI2C Digital
Measuring Range-40°C to +125°C
Accuracy±0.1°C (typical)
Resolution0.01°C
Startup Time0.5 ms (typical)
Response Time> 2 s
Heater Power3.6 mW to 33 mW
Operating Temperature-40°C to 125°C
Board Dimensions20 mm x 17.5 mm x 2 mm
Mounting HoleM2 (2 mm), 15 mm pitch

Frequently Asked Questions

What is the operating voltage range for the STS35 breakout board?

The STS35 sensor module operates from 2.15V to 5.5V DC, making it compatible with both 3.3V and 5V microcontroller systems like Arduino, Raspberry Pi, and ESP32 without requiring a logic level shifter.

How do I connect and communicate with this sensor using I2C?

Connect the board's VCC, GND, SDA, and SCL pins to your microcontroller's corresponding I2C bus lines. The sensor supports standard I2C protocol up to 1 MHz. The default I2C address is 0x4A, but it can be configured to 0x4B using the ADDR pin on the breakout.

What is the purpose of the integrated heater on the STS35 sensor?

The onboard heater actively raises the sensor chip temperature slightly above ambient to prevent condensation and humidity from affecting the sensing element. This ensures measurement accuracy and long-term reliability in environments with high or fluctuating humidity levels.

What is the measurement update rate and response time of this sensor?

The sensor has a very fast startup time of 0.5 ms. The actual measurement response time to a temperature change is greater than 2 seconds for a full-scale step. The update rate via I2C is limited by your chosen communication speed and the read command cycle time.

Package Includes

  • 1 x DFRobot Fermion STS35 High Accuracy Digital Temperature Sensor Breakout Board

Additional Information

Weight 0.02 kg
Dimensions 6 × 6 × 2 cm

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