Zhen Hua Interface - Help Needed

[Eric Brouwer]

Ok, I know this will be a long shot in the dark. It seems that the Zhen Hua transmitters are no longer available, or are replaced by standard PPM type transmitters. but living in South Africa, has got it advantages. Old technology will be available here soon.

I noticed an increased number of requests for interfaces for transmitters that are shipped with the Dragonfly and Walkera 4 electric helicopters. As I do not know anyone with such Tx's, I was up till now unable to get my hands on one. However, I just received a Tx today, which I believe is a "Zhen Hua" type. It has the four pulses as PPM, but on closer inspection, it seems more like a PCM or serial signal, than PPM.

Is there anyone willing to give me a hand with the code for a PIC serial interface, or even just a full description of how the signal works, an how it should be decoded with a PIC? I am not realy in the mood to spend hours to try and figure it out. Any help would be GREATLY appreciated.

Thanks

[overhead]

Hi Eric,

Check this .

I have a Zhen Hua transmitter and have worked on it a bit already. I wouldn't mind sharing my info with you. Email me.