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[Sticky] SBUS to PWM Decoder

Cliff
(@cliff)
Admin Admin
frsky sbus to pwm decoder FrSky SBUS to PWM Decoder 540x400

The FrSky S.BUS to PWM Decoder allows the use of any standard analogue or digital servos with an S.BUS compatible receiver.

S.BUS specific servos are therefore not required.

With 4 programmable channel outputs, assignment of each servo to a channel of choice can be acheived with only one input lead from the receiver.

Channel Outputs: 4 programmable
Channel Ouput Lead Lengths: 200mm
Overall Length: 350mm

Please note: The FrSky Servo Channel Changer is required (sold separately) to change assignment of channel outputs.

SBUSDecorder

Manual available here:  https://www.frsky-rc.com/sbus/

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Topic starter Posted : 12/04/2019 3:17 pm
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michael abrahams
(@micka)
New Member

hi gents

can i use two of the decoders on one receiver as i want to put one in each wing, would i have to use a y- lead or can i plug into two ports

im using the g-rxr 8  receiver 

thanks

mick

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Posted : 18/10/2019 5:55 am
Cliff
(@cliff)
Admin Admin

I don't think that that is possible!

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Topic starter Posted : 18/10/2019 6:59 pm
RonG
 RonG
(@rong)
Active Member

Just saw this post, 2 decoders can be used off a Y lead into the SBUS port, I’ve done this on a warbird with 4 servos in each wing, so 1 decoder per wing half.

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Posted : 01/12/2019 11:26 am
Cliff
(@cliff)
Admin Admin

I think you would have to be mindful as to what current is going to be drawn!

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Topic starter Posted : 05/12/2019 12:35 pm
Pete liked
Andrea
(@ceccand)
New Member

Hello 

I have Frsky X8R as receiver and Taranis X9Lite.

To communicate with dual Esc Flsky (PWM signals) Is strictly necessary to have a decoder to move from SBUS to PWM?

Thanks

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Posted : 30/03/2020 8:47 am
Cliff
(@cliff)
Admin Admin

Yes it is.

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Topic starter Posted : 31/03/2020 1:48 pm
Andrea
(@ceccand)
New Member

@cliff

Thanks Cliff. So if understood well decoder is not used just for increase number of channels but strictly necessary to translate sbus in pwm right? Thanks again

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Posted : 31/03/2020 2:02 pm
Cliff
(@cliff)
Admin Admin

Correct!

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Topic starter Posted : 31/03/2020 2:18 pm
youngstar
(@youngstar)
New Member

I believe the maximum current rating is <6amp so you can easily add battery power from a Y-lead on the servo side.

Regarding the above comments the decoder translates sbus to pwm so to add additional chanels you simply Y-lead from Subus to two pwm modules giving you 8 additional channels etc. Just remember to program the respective channels prior along with the channel range on TX.

In the instructions the pwm lead outputs are 210mm, max 350mm. So important to add your required cable lengths from the sbus output first, as required.

I hope some Frsky technician gives us the recommended limitations for number of pwm devices and possible upgrade for the servo output lengths by adding an signal amplifier module?

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Posted : 13/05/2020 2:46 pm
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