If you’re an RC hobbyist looking for ways to improve your VTOL (Vertical Take-Off and Landing) experience, using CAN bus is a great option. In this article, we’ll explore the benefits of using CAN bus for VTOL and how to get started.

What is CAN bus?

CAN bus is a communication protocol used in various industries, including the automotive and aerospace industries. It allows different electronic devices to communicate with each other, providing a seamless and efficient system.

Benefits of Using CAN bus for VTOL

Using CAN bus for your VTOL has several benefits. Firstly, it allows for better communication between the different electronic devices on your aircraft, resulting in smoother and more accurate flights. Additionally, CAN bus reduces the likelihood of interference, ensuring a safer and more reliable flight. Finally, CAN bus is easy to set up and use, making it an ideal option for both beginners and experienced hobbyists.

Getting Started with CAN bus for VTOL

To get started with CAN bus for your VTOL, you’ll need to purchase a CAN bus module that’s compatible with your flight controller. A popular option is the Matek F405-WING Flight Controller, which comes with built-in CAN bus functionality.

Once you have your CAN bus module, you’ll need to connect it to your flight controller. This can be done by following the pin-out instructions provided with your CAN bus module. Typically, you’ll need to connect the module to the “CTRL” port on your flight controller.

Using CAN bus with the Connex Mini

If you’re using the Connex Mini, you’ll need to use a specific cable to connect your CAN bus module to the “CTRL” port on the air unit. The cable should have the following pin-out:

• Pin 1 (black wire) – GND
• Pin 3 (white wire) – SBUS IO
• Pin 5 (red wire) – CNABUS high
• Pin 6 (brown wire) – CNABUS low

Configuring CAN bus for Your VTOL

Once you have your CAN bus module connected to your flight controller, you’ll need to configure it in Ardupilot. To do this, you’ll need to navigate to the “Ports” tab in Ardupilot and enable the “Serial RX” option for the UART port that your CAN bus module is connected to.

After enabling the “Serial RX” option, you’ll need to set the “Serial Receiver Provider” to “SBUS”. This will ensure that Ardupilot recognizes your CAN bus module as a receiver.

Finally, you’ll need to set the “Receiver Mode” to “Serial-based receiver”. This will allow you to configure your VTOL using the Betaflight configurator.

Conclusion

Using CAN bus for your VTOL is an excellent way to improve your flying experience. It allows for smoother flights, reduces interference, and is easy to set up and use. By following the steps outlined in this article, you’ll be able to get started with CAN bus and enjoy a safer and more enjoyable RC flying experience.

Additional Information

When using CAN bus for your VTOL, it’s important to ensure that your CAN bus module is compatible with your flight controller. Additionally, you’ll need to follow the pin-out instructions provided with your CAN bus module to ensure proper connectivity.

If you’re new to VTOL or RC flying in general, it’s recommended to seek guidance from experienced hobbyists or professionals. They can provide valuable insight and advice on how to get the most out of your VTOL and using CAN bus.

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