[minima] Re: Testing the digital board
- From: <jerry@xxxxxxxxxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Wed, 05 Feb 2014 21:17:15 -0700
Thanks for the reply Steve. I built the serial board too, but I don't
have a usb to serial cable, so right now I'm butchering an old usb cable
and tearing out a serial connector from an old chassis to make the
cable. It's definately running something, it's just too fast or too weak
to see. Jerry
K5LRU
Harwood, Texas
> -------- Original Message --------
> Subject: [minima] Re: Testing the digital board
> From: "Steve VK2SJA" <vk2sja@xxxxxxxxxxx>
> Date: Wed, February 05, 2014 9:44 pm
> To: minima@xxxxxxxxxxxxx
>
>
> Hi Jerry,
>
> I'll try and help as best I can. Difficult as you guys are way ahead of me
> in construction terms. Meaning I can't test my own advice. So anyone
> better positioned to answer questions please jump in and I'll go QRT.
> Mark?
>
> So with the understanding that I'm not an Arduino guru, here's what I'd try.
>
> First - real basics regarding Arduino programs called sketches. Program
> execution starts with the setup() function. All instructions here are
> executed once. Then program flow will automagically shifts to the loop()
> function. The instructions inside here loop forever (executed over and
> over again).
>
> Suggestion. Look for this in the radiono.ino program sketch:-
>
> void setup() {
> lcd.begin(16, 2);
> printBuff[0] = 0;
> printLine1("Raduino v0.02 ");
>
> Wire.begin();
>
> We can see that pretty much the very first thing this program does is
> print "Raduino v0.02" on the LCD screen.
>
> Suggestion to debug. Add these three code lines:-
>
> printLine1("Raduino v0.02 ");
>
> //Stuff below added
>
> Serial.begin(9600); // set up Serial library at 9600 bps
> Serial.println("Hello world!"); // prints hello with ending line break
> // back on your PC IDE serial console
>
> delay(10000); // waits 10 seconds so we can see the LCD sign-on message
> // just in case something else in program clears
> // down the screen so fast we don't see the message
> //Stuff above added
>
> Wire.begin();
>
> Stuff after the // are comments only. You can leave them out.
>
> This should do two things. Confirm that the program is indeed running by
> sending a message to the serial IDE console. And also leave the sign-on
> message on the LCD long enough for us to see. Even if it is cleared off
> the screen by later code.
>
> If you see the sign-on message we go to the next step. If you can't see a
> sign-on message we need to find out why.
>
> Remember to remove these additional lines or "comment them out" after
> debugging.
>
> The three project files in Github are:-
>
> adiono board_ugly.txt <<-- Just a text file documenting which
> processor pins are used for what functions. Not part of the program
> (sketch) just documentation.
>
> radiono.ino <<-- The actual Sketch or program.
>
> radiono.pdf <<-- PDF document showing circuit diagram of the processor
> portion or the radio. Not part of the program.
>
> Careful. I "think" there was some list discussion about a minor error in
> one of these document files just recently. Don't know if Farhan has
> corrected it or not.
>
> Hope this helps.
>
> PS. After typing all this I re-read your message and realize that you
> programmed the chip in a Uno board and then moved it to the radio. So you
> may not have built the serial interface onto the radio control board. If
> that's the case then obviously the two code lines above the print "Hello
> World" to the serial port arn't going to do much for you. ;-)
>
>
> > I finished building the Digital board except for soldering in the si570.
> > I would like to test the radiono code and make sure I made the right
> > comments in the file so I don't fry the si570. I fired up the board and
> all the voltages are good: 4.92 out of the 7805 and 3.24 out of the
> LM1117, but I would like to run the code and check the 570's voltage. I
> uploaded the radiono sketch to the chip using a Arduino Uno board, and put
> the chip in my Digital board, and powered it up. All that happens is the
> LCD backlight lights, but no characters. The contrast pot works. The
> circuit draws 24ma but no display. Do I need to do something else. There
> is another code file on github, what is that for? Jerry
> > K5LRU
> > Harwood, Texas
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