Categories
Electronics Fabrication Mechanical

Whitterm-220 Clever Serial Terminal

21/12/18 UPDATE: Hello to Hack a Day readers. This project was shared when I did it but re-posted recently. It is 2.5 years old and there are many things I would do differently. I am considering work on a IO board specific to the project (RS232 driver, GPIO break-out, proper RX/TX LED buffers and potentially […]

Categories
Electronics Fabrication Mechanical Programming

Nixie Tube Energy Meter

Featured on Hack a Day Having recently bought a house, project time has been a bit thin on the ground. As a standard terrace house, the consumer unit and electricity meter were in the entrance hallway, exposed and looking a bit naff. I liked the look of the meter so I quickly created a box […]

Categories
Electronics Fabrication Mechanical Programming

Noise Crayon – Noise Amplitude to Light Spectrum Converter

Continuing on from my Ambient Noise Level Indicator, I wanted to create an enclosure and make it stand-alone – not requiring a computer to do the processing. I ended up with a little device that converts noise amplitude to the light spectrum: Noise Crayon. The Ambient Noise Level Indicator used the MCU serial host Processing […]

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Electronics Fabrication Mechanical Programming

Wooden Bits – Binary Clock

I’ve been meaning to make a binary wall clock for a while and to also try out kerf bending with the laser cutter. What put me off creating kerf bends before I found OpenSCAD, was the manual creation of all the lines in the right places. It’s the kind of repetitive, uniform task computers were […]

Categories
Programming

MATLAB Finite Difference Time Domain Acoustic Modelling

As part of MACH Acoustics’ open window research, they wanted a FDTD model to visualise sound waves moving through various window opening scenarios. I created a FDTD function, that would create an impulse wave at a specified position then calculate discrete pressure points across a defined grid size and time step. Geometry (boundary conditions) could […]

Categories
Fabrication Mechanical

Laser Cut Battery Powered Bluetooth Speaker

I wanted to create a special birthday present for my girlfriend, whom had no speaker system. I decided a battery powered Bluetooth speaker would be neat, and having just learnt use of the laser cutter I came up with a layered design. The internals consist of a 2x15W RMS digital amp, 2x15W 80 cones, a […]

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University

FYP: MATLAB A* Based Path Planner for Autonomous Off-Road Vehicle

Synopsis A new venture for the University of Bath and a collaboration with Mechanical and Electrical Engineering, the autonomous quad project aims to convert an ’off the shelf’ miniature quad bike to a driverless one. Generation of a least cost path to a pre-defined goal is required, which avoids known obstacles and will update for […]