I am looking for ready-made devices for building a Zigbee network.
1) Please tell me if there are any end devices (door opening sensors, temperature / humidity sensors, motion sensors, etc.) based on Digi XBee Zigbee modules on sale?
2) If you make your device based on Digi XBee Zigbee modules, what firmware is flashed into the module? Or is the firmware proprietary and you yourself flash it at the production stage?