开云体育

Hi Allard,

Where can I find the Si5351 library please? There are several libraries available and I feel a bit confused :(

73, Elia M0ZHN

Hi Stephan,

Thank you for the link, I downloaded the library and the sketch compiles nicely!

73, Elia M0ZHN

I thought there was something "not right" when I did the calibration on my BITX40V3. But I don't have your flight time in the cockpit.

Short and sweet of this message- Because of popularity since start of 2017. It's time to release a minimum revised BITX40V3 recommended hardware-software updates - like adding the cap in the final for 2nd harmonic suppression and other necessary items. Such as a Raduino V1.0.2? sketch. as that will also evolve.

Perhaps on HFSIGS.COM - a timeline page .... this, that or the other was adopted on this date... it's hard to follow on groups.io. I am sure everyone would want a "standard" as of this date page..

Larry W8LM

Hello,

I compiled last raduino.ino, but have problem how to connect on lcd.

Can make and sketch how to connect arduino and lcd 16x2.

Best regards

Matjaz

The LCD connections are shown on the schematic available here:

--
Ion

VA3NOI

Does this version also include the tuning dead band fix?

James

I assume by "dead band fix" you mean this: ?/g/BITX20/message/22349

Well worth doing. ?Gives the tuning pot a bit of hysterisis. ?Does away with the constant flicker between adjacent frequencies due to noise in the ADC when the knob is not being rotated, but otherwise leaves functionality and feel exactly as Ashhar had coded it. ?t works by inhibiting a reverse in direction of the tuning pot until that reversal has traveled through what would normally be 5 steps in frequency of 50hz each. ?For example, assume we have been tuning up in frequency and stop the knob at 7200.000 khz. ?A bit of noise comes in from the ADC, and the frequency pops up to 7200.050 khz. ?Another bit of noise comes in that would normally bring it back down to 7200.000 khz, but this is ignored because it does not reach the 5 tick threshold. ?A light touch on the knob might bring it a bit further up to 7200.100 khz. ?Reversing the direction of the knob, it travels through 5 steps before any change in frequency occurs, on the 6'th step the frequency goes back down to 7200.050 khz. ?If we leave the knob in that position, a bit of ADC noise might lower it further to 7200.000 khz, but noise will not raise the frequency. ?I recommend operating with the original code at first until the noise at the pot has been evaluated and minimized with bypass caps and perhaps short shielded wiring. ?Then enable this new code by recompiling the sketch. ?The frequency will still move a little bit after taking your hand off the knob, but can only move in one direction.

To implement the change, replace this part of the code as posted by Ashhar on github:

  // the tuning knob is at neither extremities, tune the signals as usual
  else if (knob != old_knob){
     frequency = baseTune + (50l * knob);
     old_knob = knob;
     setFrequency(frequency);
     updateDisplay();
  }

with this:

  // the tuning knob is at neither extremities, tune the signals as usual
  else if (knob != old_knob){
    static char dir_knob;
    if ( (knob>old_knob) && ((dir_knob==1) || ((knob-old_knob) >5)) ||
         (knob<old_knob) && ((dir_knob==0) || ((old_knob-knob) >5)) )   {
       if (knob>old_knob) {
            dir_knob=1;
            frequency = baseTune + (50l * (knob-5));
       } else {
            dir_knob=0;
            frequency = baseTune + (50l * knob);
       }
       old_knob = knob;
       setFrequency(frequency);
       updateDisplay();
    }
  }

Note that there is one more "}" not included in the code snippets above to close out the function doTuning(). ?I chose to represent the complete "else" clause with balanced parenthesis, that final "}" is not part of the else clause.

I'm on the road, won't be updating the file myself. ?But the above change does work.

Jerry, KE7ER

?

Let me hear a BIG DUH!

I posted while the code was still printing. Otherwise I would have seen that the Tuning Flutter fix was not included. I started with Allard's file and added Jack's version along with a header block that I use at the top of my code files. Compiles clean, but still waiting on delivery...

At some point I want to create an SSB only version by hacking out all the currently unused code. That should free up some memory for other enhancements.

James

Aside: I'm normally a chipKIT(Arduino clone based on Microchip's PIC32 processors - fast with large memory) user and I use a different IDE - UECIDE(uecide.org). It was fairly easy to install the Arduino Nano plug-ins into UECIDE.