--Oz-- wrote:KoekieMonster wrote:Hi, it seems like I am having a problem with my afromini 32.
I've modded an frsky VD5M receiver to output ppm(put a diode on each channel and tie them together).
I've connected this to the afromini and an logic analyzer. on the analyzer the channel 5 (from 5 channels) does change pulse width when I turn the pot meter on the TX. In the baseflight chrome app it does not change it's value. When I map the channels different it is still the 5th channel that does not work(so it is not always AUX1 that does not work).
I have tried the original firmware, some firmware with brushed motor support and the latest firmware (programmed with the chrome app) and they all have the same problem.
Is this a known problem that the last ppm channel does not work?
Or am I doing something very stupid? (since the channel is working on the logic analyzer I hope not)
I never herd of the CPPM mod (with diodes), got a link for it?
You sure you got your diodes in the correct direction? Does it need a pull up resistor after the diodes?
I would think a oscilloscope would be the best to look at this signal, not logic analyzer?
I run the Taranis with D4R-II in CPPM mode with 27ms FW, works perfect.
Good Luck.
link: http://www.rcgroups.com/forums/showthre ... st24603204
The diodes are in the right direction, I do not have the pull-down resistor on there but on the analyzer it still works, will hook it up to a scope soon.
I've also changed some settings in the tx, when I set the ppm output to 4channels, only 4 channels are outputted by the receiver.
Then again, the last channel(channel 4 in this case) is not recognized by the afromini.
I also use the D4R-II on my other quad, but for this project it is way to heavy. (auw < 50 gram)
