🫑 Retrofit a wired doorbell to add WiFi and make it smart 🔔

🌳 Outdoor LoRa-GPS tracker with E-Ink display 🔑

🌲 Indoor Infrared receiver and transmitter with temperature sensor 🎐

🌴 Outdoor BLE-connected UV sensor keychain 🗝

🌵 Indoor WiFi-connected temperature and humidity sensor 🍶