This is the Pro (higher-power) version of the popular XBee! This module is series #1 (802.15.4 protocol) 60mW wireless module, good for point-to-point, multipoint and convertible to a mesh network point. These are much more powerful than the plain XBee modules, great for when you need more range.What we like about the Series 1 modules is that they are so easy to get set up. If you have two in range, they will automatically form a serial link with no configuration, so you can send TTL serial data back and forth. You can also configure the baudrate, as well as sleep modes,...