The Adafruit SHT41 Trinkey combines the functionality of a USB key with a high-accuracy temperature and humidity sensor, making it effortless to add environmental sensing capabilities to any device with a USB A port.
Features:
- Designed to fit seamlessly into any USB A port on computers or laptops, featuring an ATSAMD21 microcontroller with minimal circuitry for efficient operation.
- Supports CircuitPython or Arduino programming, offering serial, MIDI, or HID connectivity over USB.
- Integrated Components:
One RGB NeoPixel LED for visual feedback.
Capacitive touchpad for user input.
Reset switch for easy bootloader mode entry. - Features the Sensirion SHT41 sensor, renowned for its exceptional ±1.8% RH humidity accuracy and ±0.2°C temperature accuracy, ensuring precise environmental measurements.
- Comes pre-programmed with code to output temperature, humidity, and touch sensor data in CSV format over a serial/COM port, enabling immediate use without additional setup.
- Compact and durable design makes it suitable for various applications, while its keychain-friendly size adds to its portability.
Specifications:
- ATSAMD21E18 Microcontroller: 32-bit Cortex M0+ processor with 256KB Flash and 32 KB RAM, supporting native USB functionality for versatile connectivity options.
- SHT41 Sensor Specifications:
Relative humidity accuracy: up to ±1.8 %RH.
Temperature accuracy: up to ±0.2 °C.
Operating range: 0…100 %RH, -40…125 °C. - I2C fast mode plus with CRC checksum.
- Variable power heater for enhanced functionality.
- Power Requirements: Operates within a voltage range of 3.3 to 5V, with low average and idle bare sensor currents for efficient power consumption.
Package Includes:
1 x Adafruit SHT41 Trinkey – USB Temperature and Humidity Sensor
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