Category Archives: Electronics

Encryption for very low data rate embedded systems

Posted on 11 October 2017 by admin

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 Electronics, Encryption, Other Programming | Tagged , | 2 Comments

Lora Data Collection Terminal

Posted on 26 September 2017 by admin

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 | Comments Off on Lora Data Collection Terminal

Why so quiet?

Posted on 23 February 2017 by admin

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 Barcode, C Programming, Electronics, RFID, Vinwizard | Tagged | Comments Off on Why so quiet?

PT100 Control Board for Raspberry Pi. Completed!

Posted on 22 August 2016 by admin

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 , , | Comments Off on PT100 Control Board for Raspberry Pi. Completed!

Raspberry Pi PT100 temperature sensor and control board

Posted on 8 June 2016 by admin

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 , , , | 1 Comment

Serial Port combiner for RFID station

Posted on 22 December 2015 by admin

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 →

Posted in C Programming, Electronics, FOSS, RFID, Uncategorized | Tagged , | 1 Comment

Never enough serial ports

Posted on 21 November 2014 by admin

UARTS are great. Almost all peripherals have the option to communicate using a simple serial protocol. For my latest project a weighbridge HMI interface I needed 2 serial ports but wanted to use a low end PIC18 in order to … Continue reading →

Posted in boz, Boz NZ, Electronics, Uncategorized | Tagged , , , , , , , , | Comments Off on Never enough serial ports