This week we?ll be giving away nine of the Digi-International XBee 3 Cellular Smart Modem LTE-M/NB-IoT Development Kits for free, thanks to our sponsor DigiKey.
The XBee 3 Cellular LTE-M/NB-IoT modem is based on a u-blox SARA cellular chipset and AT&T Nano SIM, which are packed into a 24.38 mm x 32.94 mm form factor. And it supports a power-saving mode that reaches as low as 20 ?A, with a deep sleep state that operates at just 10 ?A.