This compact four-channel multiplexer of hobby radio control pulses allows for easy switching between two independent signal sources. An auxiliary channel selects whether the output comes from the master or the slave source. The activation threshold and direction are configurable. Surface-mount components are pre-assembled on the PCB, but through-hole components are not installed and require soldering.
The Pololu 4-Channel RC Servo Multiplexer can be used with standard hobby radio control systems and servo controllers to allow easy switching of servo control between two independent sources using a separate auxiliary channel as the input selector. This makes it ideal for applications in which you have two possible control sources and want to be able to switch between them on the fly. For example, you could connect two RC receivers to the same set of servos or electronic speed controls (ESCs) and allow the master transmitter to decide whether the master or slave transmitter is in control, thereby setting up your own buddy-system training setup. Another possible application would involve multiplexing between an RC receiver and a servo controller, which would allow you to switch between autonomous and manual control of a set of servos.
More technical information at Pololu.
