[minima] Re: Testing the digital board
- From: <jerry@xxxxxxxxxxxxxxxx>
- To: minima@xxxxxxxxxxxxx
- Date: Thu, 06 Feb 2014 00:14:55 -0700
Well I soldered in the si570 to see if that was the problem, didn't
help. It measures 3.2 volts so at least my comments must be right. Now
the controller board is drawing 90 ma. I rechecked all my connections
resoldered almost every connection. I'm going to change the LCD next.
Jerry
K5LRU
Harwood, Texas
> -------- Original Message --------
> Subject: [minima] Re: Testing the digital board
> From: "Mac A. Cody" <maccody@xxxxxxx>
> Date: Wed, February 05, 2014 11:31 pm
> To: minima@xxxxxxxxxxxxx
>
>
> Jerry,
>
> Yes, I understand that. I just misunderstood what you were
> writing.
>
> Mac
>
> On 02/05/2014 11:18 PM, jerry@xxxxxxxxxxxxxxxx wrote:
> > Mac, the Minima has a serial interface built into the radio design, it
> > is built on a seperate PCB. I have a USB breakout board, what i'm
> > lacking is the connection cable. Jerry
> >
> > K5LRU
> > Harwood, Texas
> >
> >> -------- Original Message --------
> >> Subject: [minima] Re: Testing the digital board
> >> From: "Mac A. Cody" <maccody@xxxxxxx>
> >> Date: Wed, February 05, 2014 10:49 pm
> >> To: minima@xxxxxxxxxxxxx
> >>
> >>
> >> Jerry,
> >>
> >> I hope I'm not making a bold assumption, but I hope you are
> >> not making a cable that connects straight from a PC USB port
> >> to the serial port of the Arduino controller board. That
> >> will not work. The protocols are totally different. If you
> >> want to talk straight to the serial interface on the ATMEGA328,
> >> you need to have a USB to TTL serial adapter, like the one I've
> >> linked below:
> >> http://osepp.com/products/breakout-board/osepp-ftdi-breakout-board/
> >> Boards like the Arduino Uno have one of these chips built in
> >> already. The Minima controller board does not. I apologize if
> >> I am making an ignorant assumption about what you are doing, but
> >> it is based on what you wrote.
> >>
> >> Mac AE5PH
> >>
> >>
> >> On 02/05/2014 10:17 PM, jerry@xxxxxxxxxxxxxxxx wrote:
> >>> 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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