reading rx signal strength (pwm)

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gregd72002
Posts: 103
Joined: Fri Dec 12, 2014 5:16 pm

reading rx signal strength (pwm)

Post by gregd72002 »

Hi,

For my new UAV I'm planning to use ARF (Xbee similar) board for telemetry as well as RX. I've got the prototype working perfectly fine but looking to add signal strength measurement. ARF can report signal strength as PWM output : http://knowledge.digi.com/articles/Know ... indication

The question is how would I read it in MW.

I can see MW features RX_RSSI to read analogue input. However, how would I go about reading PWM? Do I need to code it myself or is there something I can use for it?

PatrikE
Posts: 1962
Joined: Tue Apr 12, 2011 6:35 pm
Location: Sweden
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Re: reading rx signal strength (pwm)

Post by PatrikE »

RX_RSSI is reading one of the incoming RC-channels as RSSI value.
You can add your RSSI to ex channel 8 with the range (1000 - 2000) like a normal servo PWM signal.

You can also read PWM with analog filtering like in your link.
The analog will remap voltage in to RSSI value instead.

gregd72002
Posts: 103
Joined: Fri Dec 12, 2014 5:16 pm

Re: reading rx signal strength (pwm)

Post by gregd72002 »

Thanks Patrik, I shall try this in the next days...

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