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by jhsa
Wed Jan 22, 2020 9:21 pm
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

Btw. interesting information from Pascal regarding V2 firmware: https://www.rcgroups.com/forums/showpost.php?p=43654839&postcount=8340 I said it many times, and I say it again, the MultiProtocol team and the DIY community in general should forget about the frsky protocol and create their own protoc...
by jhsa
Wed Jan 22, 2020 9:12 pm
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

If you do not want to build your own RX, Jumper R8 could be a good alternative to use alternative firmware. https://www.rcgroups.com/forums/showthread.php?3504875-Jumper-R8-Receiver-8-channel-PPM-16-channel-SBUS-D16-LBT-D8-compatible-firmware That Jumper RX, if it is the same as I have been followi...
by jhsa
Wed Jan 22, 2020 9:09 pm
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

Mike, here is the link. It runs on an ATMEGA328P. Same as the arduino. It can also use the one wire bootloader, so it is really easy to flash.. I built many. The RF module can still be bought from Banggood, and it seems to be reliable. The trickiest part is the Antenna switcher if you want to build ...
by jhsa
Wed Jan 22, 2020 2:41 pm
Forum: The Pickled Gnu (The Pub)
Topic: Un-writable / faulty micro sd cards
Replies: 5
Views: 129

Re: Un-writable / faulty micro sd cards

How are you reading the card? With an adapter? I think some adapters might have a little tab that you can move to "write Protect" them? Please check if it is not the case..

João
by jhsa
Wed Jan 22, 2020 2:37 pm
Forum: OpenXVario - an open source vario supported by the open source firmwares!!
Topic: OpenXsensor Configurator
Replies: 218
Views: 57002

Re: OpenXsensor Configurator

I love Linux. Prefer it to windows for my music work, but I wish it was way easier to work with most of the times. :)
I use Ubuntu Studio by the way :)

João
by jhsa
Wed Jan 22, 2020 2:32 pm
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

No you wouldn't drive me crazy with questions :) The only difficult thing about building the rx is to solder the 48 pin processor in place, and also its resonator.. It is the same used on the multiprotocol module.. The other components, even if small, aren't that difficult to solder. But there is al...
by jhsa
Wed Jan 22, 2020 11:06 am
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

I use the MultiProtocol module internally in all my radios, except one that has an old DHT module. if I depended on buying Frsky receivers, sooner or later I would have to get a new XJT module if they and their matching receivers couldn't be downgraded to old firmware. But I don't depend on them, th...
by jhsa
Tue Jan 21, 2020 3:34 pm
Forum: The Pickled Gnu (The Pub)
Topic: Un-writable / faulty micro sd cards
Replies: 5
Views: 129

Re: Un-writable / faulty micro sd cards

Try this software to format them.. perhaps you get lucky :)

https://www.sdcard.org/downloads/formatter/

João
by jhsa
Fri Jan 17, 2020 7:36 pm
Forum: 9Xtreme upgrade board
Topic: 9Xtreme being released to the public domain (opensource)
Replies: 79
Views: 11284

Re: 9Xtreme being released to the public domain (opensource)

Bob, the new board should not need that mod, as the original 9xtreme reverse polarity protection problem, as well as other issues, have been fixed on this new board.

João
by jhsa
Fri Jan 17, 2020 1:11 am
Forum: erskyTx (was ersky9x)
Topic: Frsky updates
Replies: 48
Views: 1517

Re: Frsky updates

MikeB wrote:
Fri Jan 17, 2020 12:08 am
I would expect the multi-protocol module to support D16 V2 quite soon. I already have some dumps of the protocol and I think I can see what is needed.

Mike
That is great Mike thanks

João
by jhsa
Thu Jan 16, 2020 10:40 am
Forum: 9Xtreme upgrade board
Topic: 9Xtreme being released to the public domain (opensource)
Replies: 79
Views: 11284

Re: 9Xtreme being released to the public domain (opensource)

I think I might be able to use some components I have here, if they are pin and size compatible. For example the mosfets and other transistors. For the mosfet I normally use the AO3407A. According to the specs it should work. :) for the speaker I have a nice 3W /4 Ohm speaker for it, but need to fin...
by jhsa
Mon Jan 13, 2020 11:30 pm
Forum: Hardware Mods
Topic: What else can I upgrade in my radio?
Replies: 143
Views: 9965

Re: What else can I upgrade in my radio?

Thank you Mike..

João
by jhsa
Mon Jan 13, 2020 6:22 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: FrSky PPM output from Rx and Taranis Trainer port

Well then you need to try either Kilrah's idea and the transistor inverter.
For the transistor circuit try something like 10K for R1 and 2.2K for R2.
The transistor itself can be any general use NPN transistor. For example BC546, BC547, 548, 549..

João
by jhsa
Mon Jan 13, 2020 5:19 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: FrSky PPM output from Rx and Taranis Trainer port

No, it is not a voltage problem. the rx outputs exactly the same voltage as the Taranis. I think you still didn't say what 35Mhz system that is. I still think it might be a polarity problem, but it could be also be that the receiver is not outputting any PPM signal. Are you sure you are not trying t...
by jhsa
Mon Jan 13, 2020 4:05 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: FrSky PPM output from Rx and Taranis Trainer port

solution If you power the receiver from its own supply, separate from the target transmitter, the you may invert the trainer signal from the Rx by connecting the ground from the Rx to the signal and the signal from the Rx to the ground of the target Tx to see if that works. Mike I didn't read this ...
by jhsa
Mon Jan 13, 2020 4:02 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: FrSky PPM output from Rx and Taranis Trainer port

The problem is not the voltage.. As far as I understand it is the signal polarity..

João
by jhsa
Mon Jan 13, 2020 2:28 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: FrSky PPM output from Rx and Taranis Trainer port

1 transistor inverter. Perhaps something like this??
logic-inverter-circuit.png

If the radio PPM input has already a Pullup resistor on it's PPM input, you might be able to just leave R2 out. And the signal should now also be at the right voltage level..

João
by jhsa
Mon Jan 13, 2020 1:14 pm
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: RE: Re: FrSky PPM output from Rx and Taranis Trainer port

The Taranis trainer output is 3.3V, so is the same as the receiver. Possibly, the receiver output is inverted compared to the Taranis. With erskyTx firmware on the Taranis, you have an option to invert the trainer output signal, maybe openTx can do the same, so you might be able to see if it only w...
by jhsa
Mon Jan 13, 2020 11:09 am
Forum: openTx
Topic: FrSky PPM output from Rx and Taranis Trainer port
Replies: 19
Views: 350

Re: RE: Re: FrSky PPM output from Rx and Taranis Trainer port

Probably just the signal level being too low, the RX puts out a 3.3V signal but old 35MHz radios expected more like 9-12 (battery voltage). Well, doesn't the Taranis also output 3.3V level PPM? [emoji14] My guess is that the receiver inverts it, and that is probably causing the problem. But yes, 3....
by jhsa
Sun Jan 12, 2020 11:36 pm
Forum: erskyTx (was ersky9x)
Topic: "Trainer Connection Lost" error while not using trainer
Replies: 8
Views: 197

Re: "Trainer Connection Lost" error while not using trainer

Do you have bluetooth installed in your radio?

João
by jhsa
Sun Jan 12, 2020 11:24 pm
Forum: Hardware Mods
Topic: What else can I upgrade in my radio?
Replies: 143
Views: 9965

Re: What else can I upgrade in my radio?

Thanks Mike..

João
by jhsa
Sun Jan 12, 2020 10:22 pm
Forum: erskyTx (was ersky9x)
Topic: "Trainer Connection Lost" error while not using trainer
Replies: 8
Views: 197

Re: "Trainer Connection Lost" error while not using trainer

Please download your models that give problems and post them here.. Or even better, the complete eeprom.

João
by jhsa
Sun Jan 12, 2020 12:55 pm
Forum: Hardware Mods
Topic: What else can I upgrade in my radio?
Replies: 143
Views: 9965

Re: What else can I upgrade in my radio?

Mike, something like this? https://www.aliexpress.com/item/32952003293.html?spm=a2g0o.productlist.0.0.7688514eFFOfzO&algo_pvid=06205055-d774-4f76-b53e-2f09b98fa413&algo_expid=06205055-d774-4f76-b53e-2f09b98fa413-0&btsid=c60181df-4943-4544-9be9-915967927869&ws_ab_test=searchweb0_0,searchweb201602_10,...
by jhsa
Fri Jan 10, 2020 11:03 pm
Forum: Hardware
Topic: 9XR Pro dead :(
Replies: 15
Views: 448

Re: 9XR Pro dead :(

Great that you've fixed it.. Congratulations.. :)

João
by jhsa
Thu Jan 09, 2020 6:35 pm
Forum: Hardware Mods
Topic: What else can I upgrade in my radio?
Replies: 143
Views: 9965

Re: What else can I upgrade in my radio?

Mike, it would be cool if it also worked with the same serial as the BT. But my question is, could the encoder be operated while trainer is also being used? Or telemetry data transfer over BT? Thanks @Rad, It would be way easier. you would need a cheap and small arduino board and a FTDI adapter to b...
by jhsa
Thu Jan 09, 2020 4:07 pm
Forum: Hardware Mods
Topic: What else can I upgrade in my radio?
Replies: 143
Views: 9965

Re: What else can I upgrade in my radio?

Well, you will have to solder to the CPU pins, ouch :O :D But, I think Mike developed another simpler way to do it using i2c serial and a small arduino board. Mike please kick me if I am wrong :) But, if it is the case, there is one problem, do you have bluetooth? is it using COM 3? If that is the c...
by jhsa
Wed Jan 08, 2020 8:09 pm
Forum: Hardware
Topic: 9XR Pro dead :(
Replies: 15
Views: 448

Re: 9XR Pro dead :(

Yes, but now we know that all connectors can be pulled out :) ;)

João
by jhsa
Wed Jan 08, 2020 3:20 pm
Forum: Hardware
Topic: 9XR Pro dead :(
Replies: 15
Views: 448

Re: 9XR Pro dead :(

See this video.. At around 15 minutes he shows the other side of the RF board. You must disconnect the connectors to remove it from the radio.
https://www.youtube.com/watch?v=zoE5oGDsgug

João

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