Sigfox is a French company founded in 2009 that builds wireless networks to connect IoT devices. Their original focus was on industrial/professional applications such as water meters. Sigfox has recently been applying their technology to consumer applications such as smart watches and home alarms. The key parameters for the application is the requirement to exchange continuously and securely small amounts of data.
A wireless base station is a transceiver that connects other devices to one another and/or to a wider area. In this particular application we are implementing a Sigfox base station.
The OL2385 device is a radio frequency transceiver with an embedded MCU designed for a wide range of industrial and home applications requiring a very high link budget for bi-directional RF communication.
The NX5P2190 is an advanced power switch with adjustable current limit. It includes under-voltage and over-voltage lockout, over-current, over-temperature, reverse bias and in-rush current protection circuits.