• PSU Control & Monitoring


    Yesterday evening I completed the first of the plug in modules that simply allows me switch the thing on and off, monitor the output voltages and fault conditions. This is as basic a module as you can have, consisting of only LEDs and resistors. Later, I will create a better monitoring card that can actually monitor…


  • New universal modular PSU


    The long bank holiday weekend arrived and I decided I would complete a battery powered project that’s been sitting around for a while; I have a lot of half completed projects sitting around the workshop.I needed to calibrate the software that monitors the internal rechargeable batteries and realised I didn’t have any type of suitable data…


  • Changing standards


    When I started PIC programming 15+ years ago hobbyists used to build their own PIC programmers and as such, came out with their own ICSP (In-Circuit-Software-Programming) interface connection pin-outs which they would adopt for their own designs. I don’t remember giving my own pin-out much thought and it was probably based on the easiest way…


  • PICKIT2 and PIC18F25K22… again


    n June 2012, I wrote a blog article on how to update the PICKIT2 to support the 18F25K22 PIC device. This is easy to do and just requires updating the local software device file, and I provided a link to the page on the Microchip site where you could download the required updates. Unfortunately, and…


  • New digital thermometer clock firmware v8


    I was contacted a couple of days ago about the possibility of changing my digital themo clock to also show the date.It sounded like a quick change and as the RTC chip does have the date available, it seem like a quick project for a rainy afternoon. It actually took a lot longer than I…