The Arduino bird boxes are fitted with a solar panel, rechargeable battery and a smoke sensor together with a 3G network connection. Allowing the bird box to send a geo-located signal to local ...

Most 3G/4G modems used in Russia, Europe, and probably elsewhere in the world, are made by Chinese hardware manufacturers Huawei and ZTE, and are branded with the mobile operators’ logos and ...

Pictured from left to right are Arduino's LoRa board, GSM board, Sigfox board, and Wi-Fi board. Then taking things to the extreme is the cellular 3G GSM.