Can i use one of the F3FC UART ports for my Graupner GR-16 Receiver?

[Chr1st0h1]

Hello,

I have upgraded my Tricopter Naze board with a F3FC board, but I can’t get my Graupner GR-16 Hott Receiver to work.
The F3FC seems to work normal as far I can see in Cleanflight.

But it seems that the PWM5 & PWM6/PPM ports are not working. When i use port PPM 6 the receiver won’t go on.
The GR-16 acts weird with the green/red LEDS blinking randomly on Port PWM5. (With the transmitter on)
When soldering the pin-header a tiny solder ball was sticking on component “U3” (close to the I2C port)
I could remove it but maybe I damaged that component with to much heat of my solder Iron and now these ports are not working anymore??

For the Tricopter Naze board I used these settings in Cleanflight (with one servo wire on GR-16 channel 8) to work :
The Receiver Mode is: RX_PPM (PPM RX Input)
The Serial Receiver Provider is: SUMD

When I attach the GR-16 to UART 1/2/3 the receiver the will go on, but the port won’t understand the signal.
Here my question. Can I use one of the UART ports and change it in Cleanflight so that the port understands RX_PPM / SUMD?

Any suggestions highly appreciated.

[Chadwick]

I am using a using a graupner gr-12 on mine and it works fine on UART 1.
You need to set uart one to serial RC in cleanflight, then on the settings page change the serial Rx from the default sbus to SumD.

[Terje]

What Chadwick said: In Cleanflight, on the Ports tab, enable Serial RX on UART1

On the Configuration tab under Receiver Mode, select RX_SERIAL and under Serial Receiver Provider, select SUMD 🙂

[Chadwick]

Thanks for the proper tab names, couldn’t check my compete for the proper name 🙂
You also need to have you transmitter set up to output SumD on the model you are using for you tricopter.
Also just to cover all the bases on the GR-16 the SumD output is port 8

[Chr1st0h1]

Chadwick & Terje thanks for you replay! Now I know Graupner receivers can work on a F3FC UART port.
I will test it this evening (CET)

[DHG500]

Not trying to hi-jack this older thread but it seemed unneccessary to open a new thread as I am running against almost the same wall!

I am trying to configure my Tricopter V4 with a Graupner MX 12 Tx and a GR-12 Rx.

As suggested above I have enabled Serial Rx for UART1 on the Ports Tab and selected a Serial Rx with SumD on the Config Tab.

The F3FC board UART1 port (current version on the day I type this question) is connected to the Rx port 6. Telemetry (1 wire from UART2-Tx) is connected to the signal connector on Rx port 5.

Via Cleanflight I succesfully flashed the latest firmware on the board.
The Tx and Rx are bound and recognize each other, the Rx LED is glowing green constantly.

With a 4S LiPo battery aboard and the USB cable attached and Cleanflight connected the position sensor is easily calibrated and reacts accurate and accordingly to position of the tricopter.

But no stick-input (throttle, nick, roll, yaw, mode 1) gives any reaction on the tricopter, on the Cleanflight Receiver Tab however I have prompt response and I can adjust midpointsettings on my Tx and see these adjustments on Cleanflight.

Saving my settings and/or jumping from one CF tab to another makes me lose all adjustments again.

Where am I going wrong?

Regards,

Bob

[DHG500]

Nobody? Really?

[DHG500]

Which motor-ESC protocol should I select for the standard Aikon AK32 35A ESC’s that come with the TRi_V4 Electronics kit?

PWM
Oneshot125
Oneshot42
Multi
Brushed (think not with BE2217-1300KV outrunners)
DSHOT150
DSHOT300
DSHOT600
DSHOT1200

[biggestRCEfan]

As far as I recall it depends on the firmware that you run. I think I saw yesterday that these ESCs can do dshot 600.

[Author]

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