The Adafruit HDC1008 is an I²C digital temperature and humidity sensor breakout board, offering accurate environmental readings in a compact, easy-to-use package. With typical humidity accuracy of ±4% (optimised for 10–80% RH) and temperature accuracy of ±0.2°C across -20 to 85°C, it's a reliable choice for climate monitoring projects.

The sensor supports 3–5V power and logic levels with no external level shifters or regulators needed. Two address-select pins allow up to four HDC1008 sensors on a single I²C bus, making it easy to monitor multiple locations simultaneously.

Key Features

• ±4% Typical Humidity Accuracy – Optimised for 10–80% RH operating range
• ±0.2°C Typical Temperature Accuracy – Over -20 to 85°C range
• I²C Interface – Simple digital communication with your microcontroller
• 2 Address-Select Pins – Run up to 4 sensors on one I²C bus
• 3–5V Compatible – Works with both 3.3V and 5V microcontrollers without level shifting
• Compact Breakout Board – BGA sensor chip with supporting passives on a ready-to-use PCB

Ideal For

• Indoor climate and environmental monitoring
• Weather station projects
• HVAC and smart home sensor networks
• Multi-zone humidity tracking with up to 4 sensors on one bus

Package Contents

• 1× Adafruit HDC1008 Breakout Board – Fully assembled and tested
• 1× Header strip (unsoldered)

Resources

• Adafruit HDC1008 Learn Guide