I'm developing for my #iot project with a device, a Raspberry PI, positioned in places without any internet connectivity.
So I'm looking for a really cheap internet connectivity solution; using a cheap 3G USB dongle.
Googling here and there I read about the facts some (or all?) these kind of 3G modem dongles sometime SINK more current than that Raspberry PI circuit can supply... (with usual power-supply say 1.x Amp); and some people suggest to connect the dongle to a separated-powered USB HUB, If I understood that properly.
The point is that I possibly would avoid the hub-connection scenario because of costs (cases + connectors + hub + power supply) and anyway I read about people used successfully 3G dongles connected directly to the Raspberry USB port.
So my question is: Does someone experienced (cheap) 3G Dongles (Europe) that are "compatible" with the current amperage that Raspberry could supply ?
Does exist any list of "compatible" / tested 3G dongles that can be connected directly to the RPi USB port (without an USB hub) ?