Adafruit Bluetooth® eInk Display Clock with Temperature Humidity Sensor

Experience seamless environmental monitoring with our Bluetooth®-enabled sensor and digital clock. This compact device, measuring just 110mm x 55mm, seamlessly integrates into any space with its sleek, minimal design.

Encased in durable ABS material, its 3.5" x 1.25" eInk display ensures clear visibility of room temperature and humidity. The sensor communicates with the Mijia "Mi Home" App on iOS and Android, transmitting data over a 10-meter Bluetooth® LE range.

Ideal for home automation projects, it offers dual modes: advertising mode for encrypted periodic data broadcasts and a BLE device mode for unencrypted, direct readings. Compatible with ESPHome and Home Assistant, it can function as a remote sensor node or an elegant E-Ink clock.

Setting the time is simplified via a web-bluetooth page, and the package includes 2x CR2032 coin cell batteries, a magnet, and adhesive stickers, allowing flexible mounting options throughout your living space.