openrcforums

Hmm, the SP Basic.
Yeah that is the whole reason for this discussion, I apoligize for not being clear... I was not able to program and or power on the radio to see anything other than 'Switch Error!'

I figure I couldn't program until that was resolved...
So all is well and maybe my programmer is not good?

p.s. Confirmed 5V at all push button signal wires.

Well, the good news, I was able to get connected and program the radio, well I am backing it up right now..
Apparently the SP Basic is faulty...
I can connect by direct wire via soldering to pads without a solder-less solution.

Alright, successfully updated radio firmware, unfortunately lots not working at the moment with the radio THR Switch is ON and stick is dead including TRIM for Throttle that is...
Too much to write about as its late right now... I will post tomorrow afternoon my finding...
Will have to let Steven know that this particular SP Basic board was a dud faulty...

What is the latest MegaSound9x Firmwares?

I have found this on the thread earlier on...

(posted March16)

combinedSerial.hex
amod_last.hex
amod_last16.hex
amod_lastSer.hex
amod_lastSer16.hex

I think v4 is what it was shipped with...
I am going to use er9x and serial for update SD card.. but still use the LCD lines for connection.

Thanks.

If you add the extra serial connections, and move the trim switch connections, you get the benefit of being able to backup and restore models to/from the SD card on the MegaSound.

The files with "16" in the filename are for a ATMEGA168 processor.
The combined.hex includes the bootloader and needs to be flashed using a programmer.

I think you will just want amod_last.hex. amod_lastSer.hex is for if you have the serial only connection.

Mike.

MikeB wrote:If you add the extra serial connections, and move the trim switch connections, you get the benefit of being able to backup and restore models to/from the SD card on the MegaSound.

Mike, I believe Pino will use openTX on this radio.. If so, serial and Backup/Restore is NOT supported.

The files with "16" in the filename are for a ATMEGA168 processor.

I do believe this file is for the arduino with m328, 5V at 16Mhz. At least this is the name of the file posted on the ArduVoice thread.

viewtopic.php?f=5&t=6831

João

Hi Mike, I have added the serial connection and have used them for the Backup/Restore on my other board... so that works.. without moving the LCD off the MegaSound right... as in, i have that working on my other radio. I just have alot of hot glue by accident on the trim switch lines... i can work taking it off.. but if i can do that without just freeing the LCD lines.. then I am fine with that.. but i can do it if you think i should.

My other radio has all that working while still using LCD lines...

The jury is out on the Firmware on this... I really want this radio to have OpenLRS and Telemetry for my APM(Mavlink) that is the Goal. I should everything work for both.. I have the hardware.

Joao, your link is to ArduVoice... not MegaSound... are they the same.?

The arduvoice is basically a MegaSound but is built using an arduino board running on 5V and at 16Mhz. I posted that link so Mike can see that the file has the same name..

João

ah got it.. I just repaired the Roll Stick.. just checking to see why the THR is not working...
That should not be affected... just the THR Switch... right?

EDIT:
just repaired the THR Stick as well.. I had a wire fray contacting the Signal which gave it 100%... all better now...
So sticks are good.. Everything working but the THR Switch is still alarming.

Investigating now...

I'm trying to get round to adding mavlink telemetry to ersky9x. The main problem is I don't have anything to test it with.
Any suggestions on the minimum hardware I would need to get a mavlink telemetry data source?

Mike.

Mike, I think openTX supports it? Would it help if you had a look at its code?

João

Hi Mike, that would be golden!
Well to start you would need a APM.
http://www.banggood.com/DYS-Mini-APM-Fl ... 77560.html
This will give you all the wonderful telemetry data you would produce from an APM FC.
There is a Telemetry Port, UART that will output all the APM Telemetry in Mavlink format.
I have a few, I will send you one to further the cause, say no more...
PM me your address... I will post it tomorrow.

oOn a different note, I am going to put the serial mod in place..
I was talking to Jaoa, I think I have the setup down....

M128 MegaSound
Pin28 --> Pad7
Pin27 --> Pad8
D0(Pin2) --> Pin2 (from Trim input (white wire from position 7)
D1(Pin3) --> Pin3 (from Trim input (violet wire from position 9)

Sound right?

João: Yes, I've seen that code,I intend to base my implementation on it. That code itself was, I think, copied from the Teensy mavlink to frsky project.

LTMNO: If you really have one spare, then thanks.

Mike.

LTMNO wrote: I have a few, I will send you one to further the cause, say no more...
PM me your address... I will post it tomorrow.

Pino, you're Gold my friend

João

@Joao, thanks....
@Mike, my pleasure...

Update to the efforts here... we have voice!
I was able to get the serial to work this new way, I mapped the lines as mentioned above. I powered it on and I am in business.
The first message was ALERT! then the Switch Error for THR... not sure, I will double check my wiring on that one.
At a first glance all is working now. I will play and test the file transfer and such... but that should be fine. I still have to wire in the Diode and the FTDI setup for serial.

I suspect the code that was on the MegaSound or 9x didn't support the LCD lines, they were hooked correctly... The minute the Serial Interface was connected to D1/D2, we had voice.

Speaker is wired like so...


Before:




After:

Another EDIT> It all works... The THR Switch was fine, just a wire was loose on the connector.
I tested the Backup and Restore... Golden... everything is A-OKAY!

Thank-You!

great

João

Just as I was wrapping it all up... I realized that I was going to pull the Miso/Mosi from the SP Basic pads... now I have to grab it from the Programming wire.. RRRRRGGGGGHHHH!
I forgot about the Telemetry... lol
Its been a long week/end...

It happens..

João

So, case is closed... connected the telemetry, haven't tested that yet... I will when I get my oLRS going... need more time.
Finished the Case and mounts for the Serial and ISP.

Wiring


USBASP/SERIAL Cover


I cut the notches in the case and put this cover on to make it look better.

Now, solve the SD Card update with Serial for Voice Files... then its all done. Posted the problem on er9x Development Thread....

viewtopic.php?f=5&t=2&p=107016#p107016

The lates MegaSound 9X board available on eBay:
http://www.ebay.com/itm/111888607101?ss ... 1558.l2649

hi MikeB.

Any firmware + Bootloader for using 16mhz crystal for Megasound?
Just want to play with DIY Megasound as i noticed the original was using 12mhz oscillator, it will be convenient to use the 16mhz from arduino pro mini.
i cannot use the serial Arduvoice since i want to use the serial communication for the Multiprotocol Serial OpenlLRSng.
Thank you.

Brooks

This is the main firmware, I'm not sure I've ever compiled a 16MHz bootloader.
Both may be compiled from the sources, which are at https://github.com/MikeBland/mbtx/tree/master/amod.

The serial version uses the second serial port that normally uses two of the trim switches. Are you using that port for OpenlLRSng?

Mike

hi mike,

not using the second serial port for openlrs.
how is the lag between serial and parallel for voice?
also if using telemetry + serial multiprotocol for Openlrs, will it possible to use the serial voice?

Thanks.

Brooks (",

The Arduvoice connects to other pins of the processor. The pins where the left vertical stick's trims are connected originally.
These are then moved to the ArduVoice board.

João