Well... I finally finished my first MSP430 project, a VLF (Very Low
Frequency) transmitter with built-in morse code identifier. This allows
anyone to generate a signal in the U. S. "license-free" radio spectrum
between 160 and 190 KHz using only the Launchpad.
It allows you to configure settings using a (I think) clever menu system
with the S2 pushbutton as the only input device to select between 3
different frequencies and 3 different morse code speeds.
I do have a couple of other features to add but the basic program is
complete.
The extensively commented source code is available at
http://wm1ke.us/lowfer/exciter.c
This is only my 5th C program so it is functional but not very elegant.
Once again (and for the last time 8-) I must thank Old Cow Yellow for his
original code to set up the timers (which I am still deciphering) and his
input and support. He is why communities like this work.
I would be interested in hearing from any hams, "lowfers" or others
interested in radio transmitters that decide to make their own exciter.
Regards,
Mike
WM1KE
VLF transmitter w/ morse code ID: Final version
Started by ●February 17, 2011
Reply by ●February 17, 20112011-02-17
Hi MikeI am a SWL from India (appearing for ham exam in april!) You program is
very useful for me!I just got my Launchpad on this monday! Can i have detailed
circuit diagram of this project.And one suggestion can we make a Morse code
decoder using launchpad?
Suyog Vyawahare +919987135236
--- On Thu, 17/2/11, Mike Staines wrote:
From: Mike Staines
Subject: [msp430] VLF transmitter w/ morse code ID: Final version
To: m...
Date: Thursday, 17 February, 2011, 9:54 AM
Well... I finally finished my first MSP430 project, a VLF (Very Low
Frequency) transmitter with built-in morse code identifier. This allows
anyone to generate a signal in the U. S. "license-free" radio spectrum
between 160 and 190 KHz using only the Launchpad.
It allows you to configure settings using a (I think) clever menu system
with the S2 pushbutton as the only input device to select between 3
different frequencies and 3 different morse code speeds.
I do have a couple of other features to add but the basic program is
complete.
The extensively commented source code is available at
http://wm1ke.us/lowfer/exciter.c
This is only my 5th C program so it is functional but not very elegant.
Once again (and for the last time 8-) I must thank Old Cow Yellow for his
original code to set up the timers (which I am still deciphering) and his
input and support. He is why communities like this work.
I would be interested in hearing from any hams, "lowfers" or others
interested in radio transmitters that decide to make their own exciter.
Regards,
Mike
WM1KE
Suyog Vyawahare +919987135236
--- On Thu, 17/2/11, Mike Staines wrote:
From: Mike Staines
Subject: [msp430] VLF transmitter w/ morse code ID: Final version
To: m...
Date: Thursday, 17 February, 2011, 9:54 AM
Well... I finally finished my first MSP430 project, a VLF (Very Low
Frequency) transmitter with built-in morse code identifier. This allows
anyone to generate a signal in the U. S. "license-free" radio spectrum
between 160 and 190 KHz using only the Launchpad.
It allows you to configure settings using a (I think) clever menu system
with the S2 pushbutton as the only input device to select between 3
different frequencies and 3 different morse code speeds.
I do have a couple of other features to add but the basic program is
complete.
The extensively commented source code is available at
http://wm1ke.us/lowfer/exciter.c
This is only my 5th C program so it is functional but not very elegant.
Once again (and for the last time 8-) I must thank Old Cow Yellow for his
original code to set up the timers (which I am still deciphering) and his
input and support. He is why communities like this work.
I would be interested in hearing from any hams, "lowfers" or others
interested in radio transmitters that decide to make their own exciter.
Regards,
Mike
WM1KE
