"I want to upgrade to er9x"
Usually how we all get, and I got, to this thread and then the questions start. What may help?
Break it down to links covering the stages that one will go through to mod their radio to the level they want.
* Done, Here and Here *
First should be a beginners option covering the various options for programming er9x. The Smartieparts board being first as it requires no soldering to get it and a backlight working. There are writeup links and driver links that are available. Also important is finding out if you have a v1 or v2 board right off.
* Done Here
*Next would be installing eepe and it's driver for XP or W7 and get eepe working.
If it all works and programs the mods options would be next. (if not go here for SP Board and here for EL backlight)
Next would be the solder in programming options links to how to's.
At the same time links to how to solder in general.
Recommendations for irons, iron tips, and solder with prices and sources would help a lot here. Low cost useful irons being important!
Next is links to the useful utube videos already done showing how to solder to the 9x pads.
Soldering is where most damage their working board.
Again after programming and eepe is working comes the speaker and telemetry mods. Again where most damage their boards.
The HK BL wrong jumper fix and FET switch mod requiring soldering comes in about now if wanted.
The rs232 to TTL converter circuit options should be covers about now. Build it with transistors or convert a max232 board or Frsky lite board and how to do it.
Somewhere around now would be the trainer level converter circuit build and install for other brand TX's trainer comparability.
Battery options should also be decided on and links to installations provided in order of user preference.
Next is how to install the Frsky DIY or DHT modules and how to connect them to the 9X as well as internal telemetry interfacing if that's the goal instead of an external plugin display.
Any antenna options will need to be mentioned about now.
* Done Here for now *
If organized well and one gets this far with everything working, using eepe and mixes comes next.
This is where everyone will eventually end up spending most of our time.
If my ideas here have merit, then most of the info is here on the thread now. We just have to update the first page of the thread to reflect the steps in such an order that any skill level can pick a place to start and go through the stages to a "successful" completion of a fully working er9x system.
Feel free to comment or rearrange the steps order.
Think of how you would teach someone new with limited circuit and soldering knowledge to install er9x and then upgrade to all the latest options. Next teach them to use eepe and write mixes. That's what we all have done and learned by or success and failures.
I was asked at my club to make a presentation on how to do a full upgrade. If I do I'm sure it will start something that will keep busy repairing boards so I may make a video presentation on soldering at a meeting first. Anyone know how to capture utube videos do I can put together a short important soldering video? No Internet at the meeting place. Any good soldering videos I can download will do.