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Author Archives: admin
Ever get the feeling something big is about to happen?
I always seem to start blogs these days with how crazy busy I am, and while that is true, it is also boring and totally un-newsworthy. Instead lets talk the future, and, as anyone who knows me will tell you, … Continue reading
Serial Port combiner for RFID station
I have a project where the HMI (Human-Machine Interface – ie the touch screen PC) is situated 20M from the station. Normally I would move the screen but this time it was not possible. The station has a printer and … Continue reading
Adding a Message Of the Day or Quote of the Day to your system
Got handed a nice SQL file a few years back, one which I slip into most of my applications and one that generates quotes of the day, (or Message of the day – MOTD) there are 1462 records or about … Continue reading
Catch Production system. First Screen shots
Wow, I’ve never been so busy! The first incomplete version of the Catch Production System has been installed in the factory. Several parts still need to be written such as the packing and dispatch screens and these will be addressed … Continue reading
Bloody Auditors!
… Are one of the main the reasons I’ve been glued to my PC for the past 3 months, during my usually quiet times. As your business transitions from small to medium or you start to export items (especially food-items) … Continue reading
ICD3 Finally working in MPLABX
I had almost given up on this one. Around the move from MPLAB8 to MPLABX my poor old ICD2 debugger stopped working, my PICKIT3 still worked OK but I never got to the bottom of it. Working mostly on the … Continue reading
Tinkering around
While the case design for the mobile terminal version 1 is set in stone and will not change, I have been thinking of all the messing about I’ve gone through to get to the stage of having a half decent … Continue reading
Slow progress on RFID decoding
From a previous post you may remember this diagram The seleae logic analyser did a good job of decoding this because if you can see, the variation between long and short pulses in some cases are well outside most algorithms … Continue reading
Vintage Mode.
Yes, significant lack of progress on projects and posts can only mean one thing.. Fully back to the vintage grindstone! Nothing to do but be poised on the end of the phone to tweak Delphi code and fix stuff-ups on the … Continue reading
Decoding an EM4100 Manchester Encoded RFID Tag
Above is the 64 bit raw Manchester Encoded data stream coming out of the data pin on the MLX90109 decoder of the Mobile terminal board. I have captured it using the Saleae Logic analyser which conveniently has a Manchester decoding … Continue reading
Data Collection Terminal End-Game (Putting it all together)
Getting close to the end game of the mobile data-collection terminal and its here we start to think of how all the different parts are going to fit together as a whole to be useful. As an aid for me … Continue reading
Latest Updates
Mobile Terminal Hardware Revision 8 Is working! The above shot shows a completed PCB with the LCD and the ESP8266 WiFi module mounted on the reverse. As luck would have it the WiFi Module fits perfectly and the antenna is … Continue reading
