Author Archives: admin

New Office and Workshop

Well I Finally completed the move of the electronics lab and workshop in to the new custom built work shop adjacent to the house. The new workshop is 144sqM so about 10 times the size of the old room I … Continue reading

Posted in Uncategorized | Comments Off on New Office and Workshop

Spocks Brain

There was an episode in the very first star trek series called “Spocks Brain” in which aliens use a machine to boost their intellegence and transplant out Spocks Brain into a computer. In the episode the skill to do this … Continue reading

Posted in Uncategorized | Tagged , | Comments Off on Spocks Brain

USB Real-Time Clock for Raspberry Pi, etc

Unlike a PC the Raspberry Pi does not come with any sort real time clock. Usually this is not a problem as it is connected to the Internet and a simple poll of one of the many clock sources will … Continue reading

Posted in Uncategorized | Tagged , , , , , | Comments Off on USB Real-Time Clock for Raspberry Pi, etc

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

Posted in Uncategorized | Tagged , | 2 Comments

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

Posted in Uncategorized | Comments Off on Lora Data Collection Terminal

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

Posted in Uncategorized | Comments Off on If the worst should happen!

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

Posted in Uncategorized | 1 Comment

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

Posted in Uncategorized | Comments Off on Why so quiet?

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

Posted in Uncategorized | Tagged , | Comments Off on Uploading file data as a C Header

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

Posted in CO2 Monitoring | Tagged , , , , , , , , , | 1 Comment