Boardoza HDC3022 Humidity and Temperature Sensor Breakout Board
The Boardoza HDC3022 R1.0 is a compact breakout board built around Texas Instruments’ high-precision HDC3022 humidity and temperature sensor. With typical humidity accuracy of ±0.5% RH and typical temperature accuracy of ±0.1 °C, it delivers reliable performance far beyond most comparable sensors. Operating over a wide supply range of 1.8–5.5 V and offering ultra-low power consumption, the HDC3022 is especially suited for battery-powered IoT devices, industrial automation, and HVAC systems. Each unit is fully tested and NIST-traceable, ensuring consistent measurement quality and long-term stability.
Compared to similar products, the HDC3022 provides superior accuracy, better long-term stability, and condensation resistance, making it ideal for environments with rapidly changing humidity levels. This reduces the need for recalibration and ensures dependable operation even in challenging conditions, where many alternative solutions struggle to maintain precision.
The Boardoza sensor board design enhances ease of use by exposing a standard I²C interface with pins for VCC, SCL, SDA, ALERT, and GND. Address selection pads allow multiple devices on the same bus, while compact dimensions and clear silkscreen labeling make integration simple. Combined with its outstanding performance, this makes the Boardoza HDC3022 R1.0 a ready-to-use, robust, and field-proven solution for developers and engineers seeking precise environmental monitoring.

Key Features
- Access ALERT pin
- Low power: average current 0.4μA
- Output Short Circuit Protection
- Four selectable I2C addresses
- NIST traceability: relative humidity & temperature
- Available auto measurement mode
- Programmable interrupts Relative humidity (RH) sensor:
- Operating range: 0% to 100%
- Accuracy: ±0.5% typical
- Long-term drift: 0.19%RH/yr
- Condensation protection with integrated heater Temperature sensor:
- Operating range: –40°C to 125°C
- Accuracy: ±0.1°C typical
Technical Specifications
- Item
- Boardoza HDC3022 Breakout Board
- Voltage Supply
- 1.8V - 5.5V
- Power Input Type
- Molex 5 pin 2.50mm header
- Functions
- Automotive Digital Relative Humidity Sensor,
- Operating Temperature
- -40/+125 °C
- Board Dimensions
- 20x20mm
Support
For technical questions, documentation and issue reports, use the GitHub repository or write to us directly.
