🫑 A retrofitted wired audio doorbell with added WiFi connectivity 🔔

🌳 An outdoor LoRa-GPS tracker with an E-Ink display 🔑

🌲 An indoor infrared receiver and transmitter with a temperature sensor 🎐

🌴 A BLE-connected outdoor UV sensor keychain 🗝

🌵 An indoor WiFi-connected temperature and humidity sensor 🍶