KO7M - Ham Radio Blog

In a previous blog posting I have demonstrated an extremely simple transmitter / keyer implementation on the propeller platform.  The next ...

This evening, I have been playing with Eldon's code to handle rotary encoders.  Works nicely as long as the encoder inputs to the prope...

In a previous post , I mentioned that I was working on an I2C LCD driver.  I have decided to support both I2C and parallel interfaces to com...

I am waging war on the amount of clutter in my shack this weekend.  It has gotten to where I could hardly get in the place.  I have put the ...

Sorry for no updates for a while as I have been ill unfortunately.  Starting to feel better now however so I am back playing around with pro...

In my previous post about my Propeller keyer / transmitter , my friend Eldon has been kind enough to point out a logic error that I had in...

Today I received by the evening post a package containing a little break-out board containing an RDA5807SS FM receiver chip.  This is a ver...

I have posted a simple update to the keyer / transmitter project on Github .  The change allows you to specify which sideband you wish to u...

I have put together a simple keyer or CW transmitter using the Parallax Propeller board.  This is sample code that you may find useful for y...

I have been poking around looking at floating point processors and have come across a very interesting chip that I have bookmarked for futu...