Frsky compatibility

Is there a specific module you are using?

There are modules that support cc2500 and a7105... would they actually work for both?

www.aliexpress.com/store/product/Long-ra...13037_618156421.html



I'll need to figure out how to install it in the devo12 as well.

One of the things that concerns me is that we are able to get the same range as using a real frsky module. The frsky module will not run on 3.3 volt.

I have this, courtesy of twaithm (who bought it for me and send it over from Japan, thanks Mike) since the chinese wanted like $50 shipping to Romania.

www.aliexpress.com/item/CC2500-PA-LNA-wi...-2-4G/359941652.html

It doesn't have the SMA connecter soldered on board but a Hirose U.FL micro. I then just bought 2 FrSky antennas from HK, 15cm long. Should be easier to mount inside the transmitter. Only downside is it has 17dbm versus 20dbm for the one in your link. Spec wise, anyway.


And by the way, thanks PB, great news!

sbstnp wrote: I have this, courtesy of twaithm (who bought it for me and send it over from Japan, thanks Mike) since the chinese wanted like $50 shipping to Romania.

www.aliexpress.com/item/CC2500-PA-LNA-wi...-2-4G/359941652.html

It doesn't have the SMA connecter soldered on board but a Hirose U.FL micro. I then just bought 2 FrSky antennas from HK, 15cm long. Should be easier to mount inside the transmitter. Only downside is it has 17dbm versus 20dbm for the one in your link. Spec wise, anyway.


And by the way, thanks PB, great news!

I ordered the same one I posted (the 20dbm one) but from ebay.

And yes, thanks PB!! I have about 8 frsky two way RX's... Full range with telemetry would be fantastic! Then I really will only need 1 TX!

One of my planes has a return to home feature, so I'll really be able to test the range...

Hexperience wrote: Is there a specific module you are using?

There are modules that support cc2500 and a7105... would they actually work for both?

www.aliexpress.com/store/product/Long-ra...13037_618156421.html



I'll need to figure out how to install it in the devo12 as well.

One of the things that concerns me is that we are able to get the same range as using a real frsky module. The frsky module will not run on 3.3 volt.

There is nothing in the description that says the module has a double chipset (CC2500 and A7105).

I'm not aware of a double chipset module, that you can buy for 20$ if they exist at all, but I could be wrong.

It says it right in the name "SI4432/NRF24L01P/A7105 " but I don't know much about it so thats why I was asking... PB has said before that sometimes they just say the chip can do more than it really does.

That description is used for any module you will find on Chinese Eshops.

It's a pita, if you have to search for a specific one, because you have to check the product description to know what chipset comes in the module.

To have two or more chipsets in one module, you have to use some others chips like high frequency multiplexers and match the antenna impedance for each chipset, this increases dramatically the price you will pay for such a solution.

Maybe one skilled individual would make such type of modules in the future, more now that you have a firmware like deviation that supports them, then Chinese companies will just clone it.

Don't hold your breath tough for them to invest in the R&D for this niche market.

Thanks, blackmoon. So the one that I posted is just CC2500 right? Which is completely fine because I have no use for the A7105.

Hexperience wrote: Thanks, blackmoon. So the one that I posted is just CC2500 right? Which is completely fine because I have no use for the A7105.

Looks like you're safe, it is CC2500. The chinese basically do SEO (Search Engine Optimization) by including keywords they don't belong there just to pop up in a search. They learned from the western world. Internet has turned into a very dirty place.

Will this module require another antenna hole in the tx?

Yeah, I'm looking for long range so I'll have to get it outside the tx. I already ordered the one with the rigid antenna, but I can try to mount it so that the antenna mount is out of the tx and just run slightly longer wires back to where ever I have to connect it.

I'm really really hoping the 12s has an easy spot to solder these because I can't solder small stuff like onto a pin.

Just wondering if anyone has flown with Frsky protocol yet? My module will be here in a day or two... can't wait to try it out!!

Hexperience wrote: Just wondering if anyone has flown with Frsky protocol yet? My module will be here in a day or two... can't wait to try it out!!

I intend to, I have the module but my receivers are still on the way

I haven't wired up anything yet. Even more, I took off the A7105 module, gonna think about a nicer way to connect everything up inside my 10.