Quick Link to W0EB/W2CTX uBITX files directory.

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As of 12/20/2019 Our BITeensio kit is sold out and due to extremely low interest in it, we have discontinued the kit. We are working on something new and exciting for the newly announced uBITX Version 6. All software for the BITeensio and all documentation for it will always remain in our "Files" directory.


Drop-in Replacement for the uBITX and BITX40 Raduino
Complete Kits containing ALL parts including the Arduino NANO are in stock
W0EB/N5IB Raduino Clone

Rather than name the card something fancy I'm just calling it a Raduino "Clone" but it does have a few extra bypass capacitors to help knock down some of the extraneous RFI, an extra trimmer potentiometer to adjust the CW side tone output, pads for a 4.7K CW hand key pullup resistor are provided on the board for convenience and the 4.7K SMD resistor IS supplied in the kit. The 7805 5V regulator is heat sinked and actually mounted to the board itself. It's a little over a centimeter wider than a standard Raduino but the display mounting holes are on exactly the same centers so a normal 16 X 2 parallel display mounts just like it does on a factory Raduino and the card will fit in the same space a factory Raduino does.

The Raduino Clone is NOT available completely built, but people still keep asking for completely assembled ones. With the labor costs (mine included) in the US, if I were to offer one completely assembled and tested (with shipping), the cost to the user would be in excess of $60 to US domestic customers and close to $100 USD to international customers You can buy a completely new uBITX for not much more than that so I'm offering it only in 3 forms.

One, just the bare board (Construction manual and bill of materials are in the Documentation directory of the files section on this site).

Two, a complete kit of parts INCLUDING the NANO which will come pre-programmed with the same uBITX v4.3 code as the factory Raduino unless you order it for a BITX40. Since there are several good versions of BITX40 software, the NANO will come un-programmed if it's ordered for a BITX40.

Three, the same kit of parts (still including the pre-programmed NANO), but with the Si5351 already soldered in place for those who would rather not attempt mounting that really tiny integrated circuit. I WILL continuity check the solder joints on all of the Si5351a's pins but will have no way to test it any further.

Bare Board: $6 USD postpaid within the US & Possessions. Bare board shipped internationally $8.00 (1 per envelope).
Kit of parts: $25 USD postpaid within the US & Possessions. $40 postpaid to international destinations (International Postage is USD $14 to $14.50 USD)
Kit of parts with Si5351 soldered and continuity checked: $35 USD postpaid within the US & Possessions, $50 pospaid internationally.

Please email me for availability and to order one or more of the above, using the link for W0EB at the bottom of this page. Please indicate if it is to be for a uBITX V3/V4, V5 or the old BITX40.
Click here to download a copy of the Raduino Clone Construction Manual.

All of our programs are in Arduino "Sketch" form and require the Arduino IDE Version 1.8.5 or later. We now use an "Interrupt Driven" CW routine with separate Dot and Dash inputs for the Iambic Keyer. (Modes A and B are implemented) and it operates properly at any keyer speed.

Both PTT and Hand Key use the same input wire (PTT isn't normally used in CW and the Hand Key isn't normally used in SSB modes so we save an I/O pin). A huge advantage of doing it this way is that you can use your microphone's PTT button as an emergency hand key to send CW in weak signal situations even if you don't have a key with you. We also abandoned the "accelerated" tuning in favor of having the encoder/function button move a cursor under the frequency digits. The digit the cursor is under is tuned by the main tuning encoder. Until someone fixes the accelerated tuning, this method makes tuning to any frequency much easier.

All of our software is completely "Open Source" BUT, once you have the source code and modify it, all our support for the program stops because we simply do not have the time to help everyone that messes things up to figure out what they did wrong. Save backups of the original so If you break it, start fresh and try again.

If you DO find a bug (that you did not create yourself) in any of our software, please use the "Software Assistance Checklist" in the link below to format your bug report so we have enough basic details concerning the bug. Without this data we may not be able to duplicate the problem and if we can't duplicate it, it will be next to impossible to fix.

To report a problem or bug in our software please follow this Software Assistance Checklist and email your report or assistance request to W0EB.

Contact Jim, W0EB.
Contact Ron, W2CTX.

Page, link pages & all images copyright (c) 2018, 2019, 2020 and last updated by W0EB - 01/09/2020 @ 14:10 UTC