Author Archives: admin

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

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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

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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

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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

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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

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A Better kind of Job Instruction

Job sheets are the staple of any production system, they tell the “factory floor” what to manufacture, how many to manufacture and how to do it. Most of the metrics on a job order are calculated using a bill of … Continue reading

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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

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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

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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

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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

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