Roving Dynamics Ltd
Author Archives: admin
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 C Programming, Electronics, FOSS, Uncategorized
Tagged CDC, DS1307, PIC16F455, Raspberry Pi, RTC, USB
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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
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 Bulls-i, Electronics, Indevin, LoRa, Mobile Terminal, Office Politics
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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
Posted in Bulls-i, Indevin, IT Failures, Project Management
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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
Posted in IT Failures, Mobile Terminal, Speculation, The Future, Uncategorized
1 Comment
Uploading file data as a C Header
Quick and simple post. 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 don’t have a file system then you need to convert the … Continue reading
Posted in C Programming, Pascal Programming, Uncategorized
Tagged C Header, Lazarus
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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
Posted in CO2 Monitoring
Tagged CO2, DHT-11, DHT-22, HD44780, MH-Z16, MN-Z19, PIC18F22K22, PIC18F23K22, PIC18F24K22, PIC18F25K22
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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
Posted in C Programming, Electronics, FOSS, Uncategorized, Vinwizard
Tagged PIC 16F1782, PT100, Raspberry Pi
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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
Posted in C Programming, Electronics, Uncategorized, Vinwizard
Tagged 16F1782, AN687, EasyEDA, PT100
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