<p>This is a peer-to-peerWiFicommunicationapplication,since two XIAOs detect each othervia Wifi, the garage door open or keep opening, and vice .</p> <p>Improvement:It is nice to add anultrasonic distance sensor to measure the car-to-door distance and an OLED screen to check the status of the garage. If you want an onboardvoice sensor to the door to open with vocal instruction,</p> <p>Thanks to the tiny size of the XIAO series, it is suitable to make the wearable devices, such as a small pet tracker. Thiswearabledevice can be used as a simple GPS-Tracker which willlock its currentlocation andpublishother datavia LoRa.</p> <p>Improvement:A compass that shows direction and distance is a great added value to the tracker that you could consider. Meanwhile, publishing altitude, speed, or other parameters could bring more scenarios to this tracker. Besides,the chip ESP32-C3 allowsthis tracker to communicate over WiFi or BLE, and therefore, upload the tracker's data or realizethe Long Range-to-MQTT bridge as well.</p> <p>Application</p> <p>Internet of Things</p> <p>Wearable devices</p> <p>Health monitoring</p> <p>Education</p> <p>Low-Power(LP) networking </p> <p>Rapid prototyping</p> <p>Colour:Black</p> <p>Material:plastic</p> <p>Package Contents:</p> <p>5 x Development Board</p> <p>5 x Antenna</p> <p>Only the above package content, other products are not included.</p> <p>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.</p>