The SP2UART is a little hard to explain, but it is basically a modem that can send and receive data using the FrSky radio link to your aircraft. We have had users using this function on robotics applications as well as a number of very interesting custom sensor packs onboard aircraft. The SP2UART allows you to transmit data without the need for yet another radio connection to the aircraft. We are sure there will be a lot of very interesting applications our customers will find for this unique FrSky capability.
Operational Voltage: 4 - 10 volts
Current Draw: 20mA @5V
Compatibility: FrSky Smart Port enabled receivers such as the X8R, X6R, X4R, etc.
Default Baud Rate is 300 bps, 8N1, no parity and can be reconfigured to 600, 1200, 2400, 4800 or 9600 bps (Note, the tool for adjusting the baud rate does not yet exist!)
Normal and high capacity modes available (high capacity limits Smart Port uses for other sensors):
To enable data transmission on Smart Port, the Host (Type A) and Remote (Type B) devices must be used as a pair and set to the same capacity mode.
There are also 2 ADC ports. ADC input voltage range 0 - 3.3V.