Author Archives: admin

Uploading file data as a C Header

If you have a micro-controller and need to use some data from a file (say a static HTML web page or a bitmap) and you dont have a file system then you need to convert the file into a C … Continue reading

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Encryption for very low data rate embedded systems

If your latest IOT project needs to run on batteries for a few years and you need to send some important data over the airwaves or across a serial line then you are in a bit of a poor situation … Continue reading

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Lora Data Collection Terminal

Not really designed for manufacture, but the final version of this device is quite easy to assemble and doesn’t look too embarrassing for a low volume unit. Design files are here => EasyEDA The only change I may be making … Continue reading

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If the worst should happen!

Finally got around to having a proper holiday in the UK and here I am at the end of it with no tan, a few kg heavier and no actual support problems to report other than a few RTFM problems. … Continue reading

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Re-Envisioning Mobile Communications

What follows is an un-researched flight of fancy I’m totally over smartphones! I went back to a dumb phone 12 months ago and my old smartphone is now just used as the remote control for Netflix, Viber calls (see below) … Continue reading

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Why so quiet?

Well I have actually been busy. Two of the electronic boards have gone into production and a third more complicated 4-layer board is nearing completion for the client. Unfortunately these wont be open sourced as the client has some close … Continue reading

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CO2, Temperature and Humidity Monitor

CO2 Monitoring is mandatory in many workplaces and it affects two of my clients directly in Barrel Halls where wine is stored and aged in temperature and environmentally controlled areas. The table below¬†shows the affects of various concentrations in the … Continue reading

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PT100 Control Board for Raspberry Pi. Completed!

I have recently completed this project. It has the same specification as the previous post however a few improvements have been made in light of new information. The board is intended to accurately control the temperatures of 4 wine tanks … Continue reading

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Raspberry Pi PT100 temperature sensor and control board

I am currently working on a small Project for David at Wine Technologies (vinwizard.us) to replace an older proprietary temperature control PLC. David decided he would like to use a Raspberry Pi due to the fact it is very powerful, … Continue reading

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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

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