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I'm running at 12MHz with 5V at this time. I don't have a FTDI board, I just have a USBASP.
Actually, I don't need the bootloader since I won't program the sound module using the serial I/O.
How do I do it with USBASP?

If I program the sound module using USBASP, should I combine both bootloader and firmware hex into one?
My sound module has no extra serial line for external PC or FTDI card.

Depending on the outcome of the experiment, we may need to redesign the board - Mega-IO 9x?

Rerouting the trim switches should be (slightly) easier than FrSky telemetry mod
I'll try this weekend and keep you guys posted.

Note that the trim switches are rerouted on 9x board not to the Megasound board.
You need to cut the traces of PIN27 and 28 and reroute those two trim switch signals to unused pins in the same Atmega.

Not quite. The diode is in the wrong place.The S.Port signal should connect directly to the 10K resistor, not through the diode. The diode should be in the 'other' signal line. The SPort signal is really bi-directional, the diode blocks the low voltage output of the Transmit data while the logic si...

I see... is it for Kyocera LCD? What's good about that LCD? If we control the voice card thru the serial interface, we can get rid of the strobe signal generator and save two transistors and several resistors. If we restore the backlight connection without going thru the voice card, we can add anoth...

Yes, if you don't need to read data from LCD, you may tie down LCD_WR and use PC4 for a trim switch. However, I see the LCD read statements in 'lcd.cpp'. Why do you need an additional CS for the different LCD? Can you tie one of CS signals to permanent active state? Any problem using LCD_RES? CRIUS ...

At present, I can't think of an automatic way of disabling the left vertical trim when the voice module is in use for file transfer to/from eepe. Mike. Beacuse pins 27 and 28 on the processor are still connected to the trim switches, the signals on these pins are loaded by a 200 ohm resistor to a 0...

One possible theory is eeprom may get corrupted if I turn off the TX while it's writing back to eeprom.
And the next power up, TX will see the checksum error and reinitialized the eeprom with the default values.
I shouldn't turn off the TX while cursor is blinking.

Happy New Year!
EEPROM got wiped out when powered up.
I've experienced at least twice on two different transmitters based on the 9XR board.
What's the possible cause of this problem?
I'm using the latest test firmware.
Thanks.

Any benefits running 328 in 5V/20MHz?
I can get a cheap 5V MicroSD breakout board from eBay:
http://www.ebay.com/itm/381103445152

I'm collecting/ordering the parts for the project. What's the best speaker for the voice card as my Taranis came with a lousy speaker. Any recommendations? EDIT: I ordered a 36mm eBay speaker same the one recommended by Hans. http://openrcforums.com/forum/viewtopic.php?f=5&t=948&p=31653#p31653

Thanks Gents, After some thoughts, I decide to make three PCBs at OSHPARK based on mhotar's design. http://openrcforums.com/forum/viewtopic.php?f=5&t=948&start=3300#p48603 I like his design which is small enough to fit into my custom transmitter based on an old ProLine metal box. His archive...

I emailed the guy but he replied that minimum order quantity is 30 but he couldn't find enough demand.
Yes Mike, would you post your stripboard implementation?
Thanks.

As I can't get a furnished Megasound9x board, I have to find an alternative to add the voice to my custom transmitter. I'm considering http://www.ebay.com/itm/271684527017?_trksid=p2060778.m2749.l2649&ssPageName=STRK%3AMEBIDX%3AIT module. In order to hook this up, I need to relocate Throttle Dow...

Current eepe for Mac is built from the latest OS/X Maverick and apparently it's not backward compatible. If you upgrade the OS, you shouldn't have any problem. BTW, OS upgrade is free and 10.7.5 (Lion) entered the end of product life meaning that Apple will no longer offer the security patches soone...

Enjoying super stable 10.6.8 may not be safe since Apple no longer provides the security patches for that version.


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You can buy an er9x compatible LCD from http://www.buydisplay.com/default/graphic-display/128x64-monochrome-lcm-graphic-cog-lcd-module-display-panel-screen-with-driver-price-interface-datasheet-pinout-arduino-from-manufacturer or http://stores.ebay.com/BuyDisplay?_trksid=p2047675.l2563 I did add cus...

I built r402 eepe.dmg and eepskye.dmg for MikeB. I built them on the OS X 10.9.2 with xcode 5.1.1. I installed them on my wife's MacBook Pro having no Qt/Xcode and both ran fine on her machine. You probably need to upgrade OS to the latest one (it's free) or build your own eepe by yourself. I believ...

You can build 32b Qt appl on 64b machine but there's no straightforward way to run 32b Qt appl on 64b Linux.
If you try, you'll get "./eepe no such file or directory"
http://stackoverflow.com/questions/1912 ... -directory

You can download it from internet. Here's one I have.
By default, qmake creates a xcode project file and you need to build it from xcode ide.
If you want to build it by using make, do:
edit eepe.pro by adding CONFIG-=app_bundle at mac {} (line number 104)
qmake -spec macx-g++
make

MikeB wrote:I'll try to look at this today, can you detail the error?

Mike.

PM sent to your gmail account.

I've tried this and that but no luck to build a working version of eepe on Windows 7.
I just uploaded Mac version of eepe-r393.dmg on another thread.

Since TheObstacle didn't answer the call :), I've built and tested an eepe-r393.dmg. One problem of the eepe is its setup dialog is too tall and it doesn't fit to 11.6" MacBook Air screen which is 1366x768. It would be nice if we split the setup dialog box into two pages/tabs. I also tried eeps...

Actually, I don't need to install QtCreator unless I modify the .ui files at Windows. I installed MinGW and MinGW version of Qt 4.8.5 library. I checked out source code using svn coming with Cygwin. Compilation was successful but it crashed at QtCore4.dll. (qmake followed by make -f Makefile.Release...

I can grab a copy of svn for Windows but which compiler should I install?
Do I have to install cygwin with gnu tool chain on Windows?
Thanks,
HT

MikeB wrote:First off, you need to install QtCreator, do you have this?

Mike.

Yes, I have.
Are you using MINGW to compile eepe?

I couldn't find any instructions for building eepe on Windows platform.
Where can I find it?
Thanks.

I've built eepe/eepskye for both windows and linux (lubuntu in a virtual box) and both seem to work fine. I tested the serial ports using the telemetry option. The Megasound board has a serial port on it. eepe can use that to sned files to the SD card on the Megasound board. Mike. Sorry about hijac...