The first uBITx has appeared with a 2.8” TFT display. The hardware is from Joe VE1BWV and the software from VU2SPF.
The display provides full touch control along with physical optional buttons. 100 memory channels come standard, along with a tunable BFO, selection of VFO A, B or M. All bands are selectable from the front display which is a cheap 2.8” TFT touch display. Joe uses an AT Mega 2560 processor for lots of pins and better performance and an Si5351 for DDS.
Further details were given subsequently by Joe VE1BWV …
We have already done this for the Bitx40 and released software, videos etc.
Under youtube vu2spf and facebook as well as in the [BITX20] io group.
They are for the Bitx40 but the new code for ubitx has all the same features.I have 2 of my 3 Bitx running the basic same code. They work and look great.
See http:// vu2spf.blogspot.ca
This has info on the code, features, hardware, etc. The full UBITX info will be posted soon, including the arduino sketch, hardware options, where to source parts. An article in QRP magazine has just been released to subscribers.
- 1 Jumper cable (2 pin) – male to female for connection of SDA and SDC lines from AT Mega to the Si5351 DDS.
- 1 Jumper female to female 8 pin from atmaga to ubitx board
- 3 cables for the clocks from Si5351 to the Ubitx. – shielded cable is best
- The first of these gets fed the 13.5 volt, and reduces the voltage to 9v to feed the AT Mega 2560. This keeps it cooler than running full input voltage. He also adds 2 filter caps – one 2000 mfd capacitor on the input side, and the other on the output side, along with a 2- 10 ohm resistor on the output in series to act as a hash isolation filter.
- The second converter is used to feed the SI 5351 module, adjusted to 5 volts. This uses the same filtering system as above.
Joe says this results in a very quiet rig with everything nice and cool.