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CLRacing F7 Dual
#1
Those that know me will know that I am a big fan of the the CLRacing board.  Well design (many copiers), great quality and reasonable price.  F7 for $35.

They just released a new board with Dual gyros.  I can't tell what "separated interrupts" mean.  The other thing that is cool is 8S.  Is LOWER kv 8S the new 4S? Polarity protection (first I have heard from an FC) for the human error in us.


https://cl-racing.myshopify.com/products...8520208502


Main Features
  1. MCU: STM32F722RET6 216MHz
  2. DUAL 6-Axis ICM20602 Separated Interrupts
  3. Build in Beta flight OSD
  4. Up to 8S(36V) direct battery power
  5. Build in Voltage monitoring resistor
  6. Build in 5V/3A BEC and 3.3V/250mA for system
  7. Led strip share 5V with 5V/3.0A BEC
  8. 5V OR VBAT, camera and VTX POWER VIA Pit Switch
  9. 6 Full UARTS: UART1, UART2, UART3, UART4, UART5, UART6
  10. Build in Camera Control pin with necessary resistor and capacitor 
  11. Buzzer pads for external buzzer
  12. VBAT Polarity protection
  13. Build in 32MB Blackbox flash chip
  14. M4 Can be selected either led strip signal or M4 signal for RPM filtering
[-] The following 2 users Like voodoo614's post:
  • Krohsis, RENOV8R
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#2
Seperated interrupts basically means that each gyro has it's own dedicated communication channel to the MCU, and the MCU can process the signals from each gyro in parallel rather than sequentially (much like with multithreaded programming).
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#3
Great, and I just finished putting the regular CLRacing F7 (which I love BTW) in 2 of my quads with another sitting on the bench.
Dude, where's my quad?
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#4
I love my F4S. Fingers crossed for an F7 AIO!

The ground is for dead people.
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#5
(24-Jul-2019, 08:42 PM)Banelle Wrote: I love my F4S. Fingers crossed for an F7 AIO!

I am with you.  I like my separate ESCs.

(24-Jul-2019, 08:13 PM)SnowLeopardFPV Wrote: Seperated interrupts basically means that each gyro has it's own dedicated communication channel to the MCU, and the MCU can process the signals from each gyro in parallel rather than sequentially (much like with multithreaded programming).

Thanks for the explanation. I wonder how the data is going to be implemented.  Which signal to push through and which one to ignore?
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#6
(24-Jul-2019, 08:49 PM)voodoo614 Wrote: I wonder how the data is going to be implemented.  Which signal to push through and which one to ignore?

Betaflight 4.x already has built in support to use data from both gyros at the same time (if you want to), as long as they are both of the same type (i.e. MPU6000 or ICM-20601). If each gyro is of a different type then Betaflight can only make use of one of the gyros and you have to specifically select which one of the two gyros to be used.

Without actually digging through the source code, I don't know how the data from the two gyros (where they are of the same type) is actually combined, but at a guess it probably takes a mean average of the combined data values from each particular axis and then uses those mean values in any gyro related algorithms.
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#7
(24-Jul-2019, 11:33 PM)SnowLeopardFPV Wrote: Betaflight 4.x already has built in support to use data from both gyros at the same time (if you want to), as long as they are both of the same type (i.e. MPU6000 or ICM-20601). If each gyro is of a different type then Betaflight can only make use of one of the gyros and you have to specifically select which one of the two gyros to be used.

Without actually digging through the source code, I don't know how the data from the two gyros (where they are of the same type) is actually combined, but at a guess it probably takes a mean average of the combined data values from each particular axis and then uses those mean values in any gyro related algorithms.

I didn't realize that BF already has codes. Always knew you can pick from different gyro of different type. This is the first FC I encounter with same dual gyros.
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#8
(25-Jul-2019, 12:12 AM)voodoo614 Wrote: I didn't realize that BF already has codes. Always knew you can pick from different gyro of different type. This is the first FC I encounter with same dual gyros.

The SPRacing F7 Dual FC released about a year ago had two ICM20602 gyros. I believe that was the first FC to implement two identical gyros but it seems to now be discontinued (?).
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#9
(24-Jul-2019, 08:42 PM)Banelle Wrote: I love my F4S. Fingers crossed for an F7 AIO!

Yup, been hoping for one from CLracing for a while.  Guess I'll keep this in mind for a 4in1 build maybe.

Isn't the ICM20602 supposedly more accurate but also more sensitive to vibes?
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#10
(25-Jul-2019, 02:17 AM)Sugs Wrote: Isn't the ICM20602 supposedly more accurate but also more sensitive to vibes?

I seem to remember that it's capable of higher update rates as well, which is kinda redundant since Betaflight ditched 32k gyro loops in 4.

The ground is for dead people.
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