FrSky's X4R receiver features 4 PWM outputs (normal servo) and now includes an option for CPPM output for feeding to flight controllers or other uses. CPPM carries 8 channels on a single servo wire. Smart Port and a traditional A2 port are all located on the side of the receiver and allow you to connect all sorts of great sensors to send data back to your FrSky radio.
A FrSky FBVS can be connected to the A2 port for simple voltage monitoring as well as all of the Smart Port based sensors.
Smaller than the X6R, but still packing the new Smart Port that works with the new hubless digital sensors.
Note: This version of the X4R does not include the Sbus output. This is only a 4 channel receiver. No SBus output.
Dimension: 24mm x 41mm x 8mm (.944" x 1.6" x .315")
Weight: 5.2g (.183 oz)
Operating Voltage Range: 4V-10.0V
Operating Current: 100mA@5V
Operating Range: >1.5km (Full Range)
CPPM Output option
FrSky Taranis, Taranis Plus, & XJT module