Battery Discharge Tester

Le Tue 28 June 2016

I have quite a few rechargable AA and AAA batteries kicking around that I'd like to use in various projects, but I know a number of them are pretty crappy. This article describes an Arduino based device that conducts a controlled discharge of the battery cells and logs the voltages. By analysing the discharge curves the battery health can be assessed.

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Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / Electronics / CSV / Tools / Energy /

Autres articles

A Simple Pressure and Temperature Logger

Le Tue 23 February 2016

This article describes a simple logger arrangement that measures pressure and temperature from two pressure sensors; a BMP180 barometer for when things go right, and an MS5803-14BA high pressure sensor for when things go wrong. This logger will be installed inside the ROV shell in place of the control electronics to record the internal pressure while the ROV is subjected to design pressures in a dive decompression chamber. This will show up if there are any leaks. If the pressure rises then there is a problem.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : ROV / Arduino / Pressure / Electronics / CSV / Sensors / Temperature /

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A Simple Arduino Based Logger

Le Tue 19 January 2016

This article describes a very simple Arduino based logger for capturing temperature data and recording it to a MicroSD card. It is intended as a building block for another logger project that will include pressure measurements for use during an in-air pressure test for the ROV project.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : ROV / Arduino / Pressure / Electronics / CSV / Sensors / Temperature /

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Multi-Joysticks transmitted to Multiple Servos

Le Mon 31 March 2014

In order to control the ROV complex instructions will need to be sent but these must be input into the control system in some way. As an aerly development it was conceived that multiple thumb joysticks could be used. This input method has been superceded by the use of the PS2 Controllers, but the code presented here is still useful and will form the basis for transferring the commands from the PS2 Controllers to the Slave Arduino in the ROV.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / Servo / ROV / Communication / CSV /

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An Arduino Weekend and Holiday Aware Hot Water Cylinder Timer

Le Sat 01 March 2014

An Arduino based project to control an office hpt water system over weekends and holidays and save the business energy. This article describes the project, the hardware and the code.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / Communication / CSV / Energy /

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Hot Water Cylinder Controller Variant for Normally Closed Relays

Le Fri 21 February 2014

This is the working variant of the Hot Water Cylinder Controller designed to trigger NORMALLY CLOSED relays.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / CSV / Energy /

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Hot Water Cylinder Controller Variant for Normally Open Relays

Le Fri 21 February 2014

This is the working variant of the Hot Water Cylinder Controller designed to trigger NORMALLY OPEN relays.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / CSV / Energy /

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Loading CSV Off SD Card and Updating Times

Le Fri 27 December 2013

This sketch is a major step along the way for the Timer Project. It loads the data off the SD Card into an array that varies depending on the number of dates that the user has bothered to supply. It then looks at the time and jumps the weekend array components forward to the next one from now.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / CSV /

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Time Loader and Adjuster

Le Fri 27 December 2013

Yes, an Arduino script to load time and adjust it. This is the fundimental section of a time machine. Yup you heard it here first.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / CSV /

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Capturing Data off an SD Card

Le Mon 11 November 2013

This is a small section of a development sketch to capture some sections of a stream of data read off an SD Card.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / CSV /

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CSV Array Loader

Le Sun 27 October 2013

A key part of the HWC timer project was reading a file off an SD Card and then do stuff with it. In this case the Arduino code distributes the data read off the file into a variable and an array.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / Communication / CSV /

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Breaking up CSVs

Le Sun 27 October 2013

One of the key elements in the code used in the HWC timer project was something to pull apart a sequence of numbers sent in a CSV format. The code here is what was tried and developed in order to do this.

Par Hamish Trolove, Catégorie : Tech Projects

Tags : Arduino / Communication / CSV /

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