Application: Internet of Things Wearable devices Health monitoring Education Color: white + black Material: PCB Low-Power(LP) networking Rapid prototyping Application 1: Smart Private Garage Description: This is a -to- WiFi communication application, since two XIAOs detect each other via Wifi, the garage door will open or keep opening, and . Improvement: It is to add an ultrasonic distance sensor to measure the car-to-door distance andanOLED screen to check the status of the garage. If you an onboardvoice sensor to the door to open with vocal instruction, try Sense. Application 2: Remote Tracker Description: Thanks to the size of the series, it is suitable to make the wearable devices, such as a small pet tracker. This wearable device can be used as a simple GPS-Tracker which will lock current location and publish other data via LoRa. Improvement: A compass that shows direction and distance is a great added value to the tracker that you could consider. Meanwhile, altitude, speed, or other parameters could bring more scenarios to this tracker. Besides, the chip ESP32-C3 allowsthis tracker to communicate over WiFi or , and therefore, upload the tracker's data or realize the Long Range-to-MQTT bridge as well. Package Contents: 1 x Development Board 1 x Antenna Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.