The kit includes one pair of transmitter and receiver modules and one pair of spring antennas for increasing the communication distance. And the frequency is 433MHz. It is very popular for remote control systems, such as Remote control rolling gates, smar
DTE Serial Card for XBee The DTE card for XBee can be connected to any serial device (DCE) equipped with a female DB9 connector such as servo and motor controllers, GPRS modems, GPS, etc.