开云体育

I have two genuine Raduino cards.? One that's been used (the only modification to both of these cards is a 47 ohm 2 watt resistor in series with the 7805 regulator to drop the voltage a bit so it doesn't have to work too hard at input voltages of 12-13 volts DC.? I've also re-located the 7805 to the back side of the card so it doesn't get in the way of things. The second is basically new except for the 47 ohm resistor mod.?? Oh and both of these have the 4.7K resistor on the CW input installed between pin 2 and pin 3 so you can connect pin 2 directly to the tip contact of your key jack.

I am not going to use either of these Raduino's.? I'd like to get US $20 (plus shipping) for the older one and $25 (plus shipping) for the one that came in the kit I just got last week.

Please, if you're interested, lets take the discussion private so as not to clutter up everyone else's email.?? My email address is good on QRZ under W0EB.? I'd prefer to ship to US addresses as the minimum international shipping for these would be $14.25 US.

It's 10:30 p.m. here and I'm going to shut down for the night so I won't be able to answer any emails until tomorrow morning (US Central time).

Jim - Sheldon, W0EB

Hi Jim, May I ask what you chose to use in place of your Raduino boards??

Justin N2TOH?

Hi Justin, a group of friends and I have come up with a much improved board we call the "RadI2Cino", pronounced "Rad ee too SEE no".? We had a few for sale earlier to test the waters and the few we had made went really fast.? The latest order of new boards is on it's way from China and we'll probably be opening up the order window again within the next 2 to 3 weeks? I need to get the boards in hand and build one up from my instruction manual to make sure everything matches then we'll have a bunch of them available.? I'll make that announcement here on this reflector and probably also in the uBITX Group on Facebook.

It's an almost direct drop-in replacement with the exception of the necessity to add at least 1 (preferrably 2) pushbutton switches and an extra key jack for the hand key (alternatively you can make up a special cable and plug it in place of the microphone (it will use the PTT terminal from the mic).?

The only thing is that it uses the I2C bus for display (either 2 or 4 line I2C LCD's) and there is no provision for a standard parallel display board.? We did this so we could use those digital I/O lines the display hogged to implement a really decent CW engine.? It's totally interrupt driven, which also allowed us to implement CAT control that doesn't interfere with CW operation? Unlike what Ian Lee did, we chose to use a subset of the Kenwood TS590S PC Commands rather than Yaesu's FT817 commands, so we wouldn't accidentally interfere with the nice work he has done in his versions.?

Also, we aren't trying to compete with Ian in any way and hope we don't step on his toes.? We designed the card and software to run it mainly for for our own benefit, trying to make a very good radio into something even better and it's turning out good enough we are choosing to share it with the more adventurous of you that are not afraid to get their hands dirty and make a few really simple hardware mods to their uBITX radios.?

We've been pretty quiet about it - only releasing several older versions of our software while working on the really fancy stuff.? This has kept the clutter down to the point where we've been able to really work on integrating the software and hardware of the RadI2Cino and not had to field a lot of questions on it. ??

Basically, all the folks just getting their uBITX radios should endeavor to get them running first so they can learn how things are before they do any mods.? One of the problems with the 2nd and 3rd batches (yes the are shipping from batch 3 now from the serial numbers I'm seeing posted by those who have just received their radios in the last day or so) is they seem to have used a bad batch of the TDA2822M audio chips and they are blowing right and left.? I had 2 pop on me since last Monday.? I've since changed a capacitor and added a 5 ohm 1 watt resistor in the speaker lead to help prevent this from happening again. (See other threads for the suggested solutions to the problem.)

Because the way we configured the digital I/O on our "RadI2Cino" card, for now, only software we release for it will run on it.? The software is open source like everyone else's so far and a good programmer can easily see what we did when we release it.? As for the RadI2Cino cards, the manual that will come with them has complete schematics, board layouts and a comprehensive "build it" section so it, like the uBITX and everything associated with is readily "Hackable" for those who take the time to learn how it works.? We're not being stingy with any information on the card and the only thing copyrighted is the board layout and the "Gerber" files to produce them.? The Gerber files for the RadI2Cino boards will not be made available so please don't even ask.

That's about all I'm going to say right now but look for new and fancy things coming down the pike.?

Again, I'll announce the availability of the RadI2Cino and the latest software for it here in this group first (in a couple of weeks most likely).

Jim Sheldon,? W0EB? for myself, Ron Pfeiffer, W2CTX and Jim Giammanco, N5IB