XBee S2 pro are said to be obsolete. what is an alternative module that we can use? we need it for wireless switching. Thank you.
The XBee-PRO S2C ZigBee is what you are looking for: https://www.digi.com/products/xbee-rf-solutions/modules/xbee-zigbee
Farnell are running down stocks of Series 2 with no sign of S2C replacements.
RS have some S2C modules.
Digikey has the best stock of all XBees.