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Raduino not working

 

My Raduino is not working. ?Here is what I have observed - - - It draws 68 mA from a 13 volt power supply. ?The 5 volt regulator is working. ?The display backlight works. ?The contrast pot works fine, however the only display is the bottom line with each character having all the squares showing. ? ? There is NO RF output (measured with 'scope). ?On the processor board the 'PW' led is illuminated all the time and the 'L' led flashes every second. ?Pressing the little button stops the flashing 'L' while it is pressed, but the flashing L returns when released.


Any of the gurus got any ideas??


Thanks - John
Jack Purdum
 

Most Nanos are distributed with the Blink program in flash memory, probably as part of the test process on the Nano, since it also tests the onboard LED. Since your LED is blinking at the same rate as the Blink program, it sounds like the Raduino program has not been uploaded.?

Install the Arduino IDE, load the Raduino control program from this site, compile and upload the program and let us know what happened.

Jack, W8TEE


From: John Jackson via Groups.Io <jjack718@...>
To: [email protected]
Sent: Tuesday, February 14, 2017 10:23 PM
Subject: [BITX20] Raduino not working

My Raduino is not working. ?Here is what I have observed - - - It draws 68 mA from a 13 volt power supply. ?The 5 volt regulator is working. ?The display backlight works. ?The contrast pot works fine, however the only display is the bottom line with each character having all the squares showing. ? ? There is NO RF output (measured with 'scope). ?On the processor board the 'PW' led is illuminated all the time and the 'L' led flashes every second. ?Pressing the little button stops the flashing 'L' while it is pressed, but the flashing L returns when released.

Any of the gurus got any ideas??

Thanks - John
 

The blink program used to be (and still is) a separate program.
However the latest bootloader program has a blink function included.

If your Uno or Nano has a blink, but nothing else, it's likely that
it has just the bootloader in it. You need to upload the Raduino
program.

If I suspect a problem, first I modify to blink program
to about 2 sec on/off and upload that. That provides a check
that everything is working and then I can upload the main program.

john
AD5YE

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