A friend gave me an older(?) 3DR radio?
Anyway, it has 4 leads/wires coming off the "flying" portion.
Can someone take a look at the pic and tell me which of the 6 board connections need wires soldered to them, and to which pins on the APM 2.5 they should go?
And...maybe this isn't worth the trouble? Maybe I should just get a new 3DR telemetry setup?
Thanks...
Replies
This helps!! Thanks
im having the same problem.
i bought an 3dr radio online from ebay. it came with 5 seperate female-to-female headers, unlike the apm 2.5 3dr radio socket.
Here is an explanation of the connections
https://www.youtube.com/watch?v=Xt2oCvccuNM
The main issue is that there are supposed to be 5 wires going IN to the APM 2.5 from the radio (though only FOUR go into the APM 2.0...and this is why I think this isan "old" radio, as it appears it is wired for an APM 2.0?).
I am pretty sure that if I can solder 5 wires to the correct 5 pads on the back of the radio (and not use that connector at all), and connect those 5 wires to the correct 5 pins on the APM 2.5, I just might be able to get it to work.
But....
Even if I get those wires correct, I wonder if there is something else about thos old radio... Firmware... Whatever... That will prevent it from working with the APM 2.5?
@Bill,
Are you sure it is a 3DR radio and not a clone? I have the 3DR 900MHz telemetry radios and they do not have the type of connector (Hirose) that is visible in your picture. The 3DR radios use the 0.1 spaced berg style pins and connectors.
I would buzz the pads on the back side of the radio to the wires in the connector, so you know what signals are on the cable, and then see if the other end of the cable matches the input on the APM2.5 connector.
Regards,
TCIII