WA0UWH - Electronics & HAM Radio Blog

On some of my projects I have used a DS3231M Realtime Clock (RTC)  which needs a voltages supply to maintain itself during equipment power d...

I have been trying to find the part number of the Crystal Pin Socket for the Propeller. I want to use similar pin sockets for my small add-o...

I received my TCVCXO PCB back from OshPark.com  (see previous post) This board with be used with the Parallax Propeller as a Crystal replac...

It has been a grueling 18 days since my last post. The Propeller UI Board that I have been working on has provided some real challenges. All...

Readers of this blog know that I have a Propeller UI Project in progress. The custom board that I created for that has been received and lo...

With the very good results of the TCVCXO Propeller Master Clock experiments (see previous post), I decided to rebuild the PCB to include th...

 . . . . I think. Last night I took my Huff-n-Puff driven Master Clock for the Propeller Microprocessor to Jack's Homebrew Amateur Rad...

I have been working several days, trying to get my Huff-n-Puff circuit to properly control the TCVCXO Oscillator, which is used as the Maste...

The last few days, I have been using the Bus Pirate (BP) to debug and test my I2C User Interface for the Propeller. After reading all of ...

I received parts from Mouser to complete the Propeller User Interface (UI). I was missing two I2C I/O Expanders and 3.3V Regulators (see pre...