Hardware and software engineer with experience in product development and building automation. Director at Cabot Technologies and Product Manager at NEX Data Management Systems.
In this video we take another look at the RS-232 plug-in module for the Sanden PET-07 CC/CV power supply. In particular, we see how the voltage output can be controlled and how this clears up some ambiguity with the circuit design. In part three, we will *finally* attempt to communicate using RS-232 to monitor and […]
In this video we take a look at the Sanden PET-07 CC/CV power supply. In particular we look at the RS-232 plug-in module and attempt to make sense of the signals between the main board and plug-in board. In part two, we’ll apply this knowledge to attempt to receive RS-232 data from the power supply. […]
When I first began using the Raspberry Pi to run Java applications, Oracle had yet to release a Java virtual machine that utilised ARM hard floats (hardware accelerated floating-point math processing). This meant that the Oracle JVM had to do all of this arithmetic in software causing excessive CPU load and poor performance. It was […]
Sometimes it’s necessary to leave a publicly accessible SSH connection available on your Raspberry Pi. While a strong password is essential, a much more secure method for authentication is to use a public and private key system. This guide will take you through all of the steps to creating the keys, configuring the Raspberry Pi, […]
Here is the design and build of my compact DIY electronics workbench. This is located in the garage / workshop in a house that I’m renting, so I’m building it to be portable and transportable in future. In this forth episode I complete the hutch shelving, mount some component trays, and more!
Here is the design and build of my compact DIY electronics workbench. This is located in the garage / workshop in a house that I’m renting, so I’m building it to be portable and transportable in future. In this third episode I temporarily install the lighting and load the shelving to assess the design so […]
Here is the design and build of my compact DIY electronics workbench. This is located in the garage / workshop in a house that I’m renting, so I’m building it to be compact and transportable in future. In this second episode I modify the hutch shelving system to raise it’s height and mount the peg-board […]
Here is the design and build of my compact DIY electronics workbench. This is located in the garage / workshop in a house that I’m renting, so I’m building it to be compact and transportable in future. In this first episode I describe how I will convert a cupboard into the workbench and my ideas […]
Here’s some photos of the Protek 608 RS-232 cable teardown: Bill of materials You know a teardown is serious when a BOM is produced! 😛 This may be overkill, but I have plans in future to develop my own transceiver hardware that instead of using RS-232 to connect to a PC, it will use a […]
I’ve finally managed to fire up the original Protek 608 software on an old Dell Inspiron 8100 I found stowed at the office. My previous attempts to run this software failed on Windows 8 and 10, and there’s very little information about how this software looks and operates (it’s quite niche). I decided that it […]