18 Apr 2016

Sanden PET-07 Power Supply RS-232 Module Reverse Engineering – Part 2

Sanden Title 2

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 […]

10 Apr 2016

Sanden PET-07 Power Supply RS-232 Module Reverse Engineering – Part 1

Sanden Title 1

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. […]

24 Feb 2016

Raspberry Pi: Change Java JVM – OpenJDK / Oracle

Source code

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 […]

14 Feb 2016

Raspberry Pi: SSH using public and private keys

Keys

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, […]

10 Feb 2016

Electronics Workbench – Part 4 – Putting it together

Electronics Workbench - Part 4

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!

9 Feb 2016

Electronics Workbench – Part 3 – Design Review

Electronics Workbench - Part 3

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 […]

8 Feb 2016

Electronics Workbench – Part 2 – Shelf system modifications

Electronics Workbench - Part 2

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 […]

7 Feb 2016

Electronics Workbench – Part 1 – Cabinet modifications and lighting

Electronics Workbench - Part 1

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 […]