CL Racing F4 Flight Controller

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CL Racing F4 Flight Controller

Note, this flight controller is not to be confused with the latest revision called the CL Racing F4S.
Please click here if you intend to purchase the CL Racing F4S instead.


Introducing the latest development in F4 AIO flight controllers. CL Racing F4 designed by Cheng Lin.  

This board is designed to fully embrace all the features of Betaflight. In fact, this design is ahead of Betaflight, in this case, because it is designed to be fully functional when Betaflight 3.2 will be released. Everything works, except the buzzer, which will work when betaflight 3.2 is ready. It's a programmable micro buzzer. See video below for more info and to get a look at it. You can also have a look at the full wiring diagram and specs below. 

Armattan has never been into trying to monetize flight controllers' sales. So if you wonder why the price is so low, that's why. It's nice to have a small mark up, but at the end of the day, we are custom quad builders. FCs are a mere commodity for us, but they are a very important commodity. We need something solid for our builds and this is it. This is thoroughly tested now and lots of time went into making this flight controller. See video below for more info. 

There are rumors that the designer, Cheng Lin, spent months in complete isolation working on this design atop Tibetan mountains in California. When he returned, he had a long beard, dirty toe nails and nothing but rags for clothes. But he was also wearing a big smile. To this day, Cheng has not once discussed his moments in isolation. Seems imminent he is preparing for another hiatus. We certainly can expect to see great designs from him in the future as the hobby evolves, just like this one. 





Important Note:
Electronics are not warrantied beyond being dead on arrival.
If for whatever reason you have no time to check the electronics within 14 days of receiving them, then no warranty or replacement will be granted.
So please only order this if you have time to check for proper functioning within 14 days of arrival.
Claims for defective parts emailed to us after this 14 days period is up will be denied.

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  • 3
    awesome FC but whats with the micro usb port?

    Posted by mikeyburr on 19th Sep 2017

    great design of an all in one
    FC. Easy to solder up esc pads and electronics and makes for a very clean stack. My only major complaint is the use of cheap grade of metal used for the usb port.
    During a crash the usb port was crushed flat. I tried to open the port back up but it was a lost cause. Other than that is an awesome board and would put it in an other build. If Armattan resolved the issue of the usb port it would have been 5/5 rating