Frsky compatibility

AntonBit wrote: Guys,
Can you please post your version with telemetry working?

I'm using latest nightly version ( www.deviationtx.com/repository/Deviation...-v4.0.1-92e1705.zip/ ) with devo7E and frsky receiver D4R-II but don't get any telemetry numbers at all (all values 0).

BTW I've tried this version with dsmx receiver and no telemetry (such as RSSI) as well, so it might be general telemetry issue of that version or something related to 7E in particular.

Both DSMX and D4R-II receivers work fine but as mentioned no telemetry (RSII and analog power values - both 0)

AntonBit wrote: Hi SeByDocky, I saw your vidios. This is indeed nice job. THanks for your comments. As for the voltage devider it is clear to me. the issue is that I'm getting all values 0. I just realized that this issue is related to my particular setup. I use 7E transmitter (I love his compactness) with the latest nightly build (mentioned above). Right after bind procedure I get the telemetry values (5v on A and 1.7-2.1v on but once I turn off the transmitter and turn it on again the values become 0 static. I'm quite sure this is SW version related issue. I also get 0 values in case of using DSMx transmitters.

Anyway, SeByDOcky, have you pushed your changes to the nighty build? Is there some way to get it? I liked your devider ratio feature as well as RSSI percentage representation, so I wanted to test it with 7E and see if I start getting the telemetry values.

mwm wrote: Hi SebyDocky,

Got a CC2500 on my multimodule (thanks for everyone's help with that). a FrSky Rx (D4R-II), and I bought a FrSky FBVS-01. From watching your video, it's an adjustable voltage divider - you solder your battery leads to different pads to get the right divider for various battery sizes.

I'm using the hexfet repository, and I get a voltage reading on the telemetry page, but no way to adjust the gain in the module setup. If I multiply the value by 6.2 because I'm using the 5S divider pad, I get close to the right value. I also don't get the RSSI values.

Unfortunately, the Devo7E build you posted won't work on my Devo10 or Devo6S. Any chance of you providing either a patch file for the FrSky telemetry or a bitbucket repository with your code? I can build from those. If you'd like, I can also create a pull request for PBR's repository for this code.

Thanks,
Mike

mwm wrote: Hi SebyDocky,

Thanks for posting that, but it didn't work. While I did get RSSI values, the voltage reading was 0. Adjusting the gain didn't seem to help. Does it need a reload of some kind if you change the gain adjustment? I did change back to the old firmware and verified I was seeing the same values.

Also, it doesn't have the Safety value fixes I'm running, which I suspect means it also doesn't have the DSM telemetry fixes I'm running, but I didn't check that.

Finally, are you planning on adding AD1GAIN adjustment? Some of the newer Rx's allow that to be hooked up to an external source.

mwm wrote: I'm using a 3S battery charged at 3.8V per cell (it came out of storage). I tried setting the gain to 38, but it still read zero.

Since I'm using an FBVS-01 in 4s mode as a voltage divider, I should actually be using 60 as the gain, which would make the value of 1.9 that I get in my build be 11.4 volts, which is correct.

mwm wrote: Thanks again SebyDocky.

That version works. However, it only loads the gain value when you load the model. Changing the gain value doesn't change the displayed voltage value. It really ought to update the value when it changes in the GUI as well. While I'm at it, setting the default value to something (pretty much anything) other than zero would be useful as well. I'd suggest 1.0, since that shows you the actual read voltage, which is a good start on figuring out what it should really be.

if (state == FRSKY_DATA1) {
            unsigned len = CC2500_ReadReg(CC2500_3B_RXBYTES | CC2500_READ_BURST);
            if (len && len < sizeof(packet)) {
                CC2500_ReadData(packet, len);
                //CC2500_WriteReg(CC2500_0C_FSCTRL0, CC2500_ReadReg(CC2500_32_FREQEST));
                //parse telemetry packet here
                frsky2way_parse_telem(packet, len);
            }

NIcolas31417 wrote: hi everyone, could someone tell me if his module
www.banggood.com/fr/CC2500-PA-LNA-Romote...F24L01-p-922595.html
can be binded with this rx:
www.banggood.com/fr/Wholesale-FrSky-V8R7...eceiver-p-68587.html

thx a lot !