SB040252025 – HUMIDITY SENSOR SCHEMATIC BLOCK

This schematic block features the ENS210-LQFM, a compact digital sensor module that provides precise relative humidity and temperature measurements via an I²C interface. It integrates a calibrated capacitive humidity sensor and a thermistor-based temperature sensor into a single module, delivering stable and accurate readings suitable for environmental monitoring, HVAC systems, and smart-home applications.

Packaged in a small LQFM package, this breakout module exposes power, ground, and I²C lines, making it easy to prototype and integrate with microcontrollers. Its factory calibration ensures reliable measurements without additional external components or frequent recalibration.

The ENS210 family is widely adopted in indoor and portable devices for its low power consumption, fast response, and high measurement accuracy.

Key Features:

• Digital humidity and temperature sensor with I²C interface
• Relative humidity measurement: 0–100 % RH
• Temperature measurement: –40 °C to +85 °C
• Accuracy: ±3 % RH, ±0.3 °C typical
• Supply voltage: 1.7–3.6 V
• Low power consumption: <2 µA in idle mode, ~150 µA during measurement
• Fast response time: <5 s typical
• Compact LQFM package for embedded designs
• Factory calibrated for long-term stability

Typical Applications:

• Indoor air quality (IAQ) monitoring
• HVAC and climate control systems
• Smart home devices and environmental sensors
• Portable weather and environmental monitoring devices
• IoT and wearable environmental sensors
• Industrial and laboratory humidity/temperature monitoring

By integrating this Quickboards schematic block, engineers can quickly prototype humidity and temperature monitoring systems, simplify the analog interface, and leverage a factory-calibrated, low-power digital sensor ready for seamless integration.