The CUAV 7 Nano Flight Controller is a compact, high-performance autopilot designed for FPV drones and micro UAVs. Featuring an STM32H753 H7 dual floating-point processor, dual industrial-grade redundant IMUs, and a highly integrated stacked design, it delivers reliable flight control in a small, lightweight package—perfect for space-constrained platforms.
The SIYI UniRC 7 is a next-generation handheld ground station built for drones, vehicles, and robotics. With dual-band 2.4/5 GHz transmission reaching up to 40 km, 4K30 decoding, and a 7-inch 1600-nit ultra-bright display, it combines powerful communication capabilities with an intuitive control interface, including flight mode buttons and an auxiliary joystick.
In this Nano and RC7 connecting tutorial, we demonstrate how to connect the CUAV 7 Nano Flight Controller to the SIYI UniRC 7 Remote Controller, covering the wiring process, communication setup, and link verification to ensure smooth, stable, and reliable UAV operation.
Products and Components Used
The setup includes:
- CUAV 7 Nano power module
- RC7 receiver power cable
- RC7 S.Bus cable
- RC7 telemetry cable
- XT60 to JST adapter
- XT60 Y-splitter
Wiring Instructions
- Connect the UART1 port (GH1.25 3-pin) on the RC7 receiver to the TELEM1 port (GH1.25 6-pin) on the CUAV 7 Nano Flight Controller.
- Connect the battery to the XT60 Y-splitter:
- One end goes to the Power port on the 7 Nano via the power module. The other end goes to the XT60 to JST adapter.
- The RC7 receiver power cable uses an XT30 connector on one end and a JST2.54 connector on the other.
Ground Station Setup in UniGCS
Open UniGCS, click the upper right corner, go to the remote control settings page, click data connection, select UDP for Datalink1 and 57600 for Baud Rate1, and the ground station will connect automatically. If it does not connect, then click the flight control interface, select the connection method: UDPCI, and write the address as 192.168.144.20:19856. Once connected, you can view and set the flight control data. In the remote control calibration interface, you can see that the SBUS channel control is normal. Return to the flight interface, and the black disk in the middle can show the real-time status of the flight control.
Ground Station Setup in QGroundControl (QGC)
- Open QGC, go to Application Settings → Comm Links, and click Add.
- Name the link, set Type to UDP, Port to 0, and Address to
192.168.144.20:19856. - Click Add Address, then OK.
- Return to the Comm Links page, select the new link, and click Connect.
- Navigate to Settings → Radio and move the sticks to confirm the S.Bus connection.
- In Flight View, rotate the flight controller to observe the real-time status update.
Hi!
Thank you so much for this video; it’s very helpful.
I have a few questions you might be able to answer.
1. Why are you powering the air unit directly from the battery and not from the PDB? Isn’t that what it’s designed for?
2. Does the PDB measure the voltage/current ONLY of the devices powered through it, or does it measure the voltage/current directly from the battery terminal? For example, if the air unit isn’t powered from the PDB (as in the video), does the battery consumption recorded by the PDB include the battery drained by the air unit?
3. In my case, I want to control two 755 (100W) brushed motors for a small boat. I’m planning to use two Hobbywing Quickrun 1060 motors. Can I power them from the PDB?
Thank you very much!
1. This video simply introduces how to connect the 7 Nano Flight Controller to the RC7 receiver. If installed on an aircraft, the battery will prioritize powering the power distribution board, and then the power module will power the flight controller from the power distribution board.
2. The power distribution board measures the voltage/current of the devices powered through it.
3. Two Hobbywing Quickrun 1060 motors can be powered using the power distribution board.