"Dear Gabor,I know you have very little time, so it'll be short.
I have been watching this project for a while. It is a very nice idea, it works, almost everyone with APM who's FPVing needs it, and lots of people are interested.
There are problems…"
"Yes, RSSI is radio-related, and that changes very rapidly. But still, it's only for a few percentage points, like 5%. Battery voltage has a much narrower range (9 to 12.6 V for a 3S, extreme values) so a fluctuation of 0.5V is about 13.9%. If you…"
"Steven G, .5V will always make a difference. What do you consider a safe voltage to stop flying a 3S at? 11V? Ok, then you have to make a rule for yourself to stop flying when the voltage shows 11.5. Ok.
But the reading being inconsistent, it may…"
"I understand... and I know what you mean, sudden drops will not register etc.
But having the reading fluctuate 0.5V, even when the vehicle is on the ground, makes it very difficult (at least for me) to use it. I'd gladly give up the responsiveness…"
"To anyone still reading this, I semi-solved my jumpy reading problems by removing the resistor from my filter. Turns out openLRS receivers already have a resistor, so they only need a filter. Still, I get about 10 points jumpyness :("
"Replying to myself again, for future reference of others:
The first 3 errors (GCS related) are "normal". At least, many users experience them so I won't worry too much right now..."
"So, I made the cable, with cap and resistor. I do get values on the OSD but they're a bit strange. Especially when my Tx is OFF, the reading jumps around a lot.
I've used the "view raw" setting but still, when tx is off it jumps about 30%..."
I'm wondering, is there a way to make it work on 3.1? Maybe a voltage divider to drop the 3.3V down to what the APM "by default" thinks is 100% signal?