I have an interest in capacitive touch at the moment – I have no particular project in mind but I wanted to see the current state of cap-touch solutions so that I could use it in a future project.
To test it out I made a board with a single touch pixel. I can use this board in other projects as a drop in touch solution. I decided to go with Microchip’s (formerly Atmel’s) qTouch library with their Peripheral Touch Controller (PTC).
Continue reading “Mini Project: Single Pixel”
Playing guitar and electronics have been two of my favourite things for a long time now. When I was about 14, I combined these two for the first time and built a pretty simply 32W amplifier. While the design is super simple, it actually has a really nice clean tone and does not distort the sound at all. It’s capable of diving an 8 ohm or 4 ohm load. Today I decided to give it a bit of a clean and check if it still worked.
Continue reading “Mini Project: Guitar Amplifier (old!)”
The Amazon Echo Dot is a popular home voice assistant, often trusted to control heating, lighting, music and even door locks. Personally, I use mine for trivial tasks such as controlling Spotify and setting alarms but you can see that it would make an obvious target for an attack.
Continue reading “Amazon Echo Dot: Attempts at a Power Line Attack”
Neon signs are really cool, but they are also really expensive and big. I decided to develop a method to emulate the effect of neon signs while being cheaper and more accessible to the average person. In total, the project cost less than £20.
Continue reading “Mini Project: Fake Neon Signs”
This is my last year at university studying for my Masters degree, hence the lack of posts this year – I’ve been pretty busy. My final project involves working with touch screens to improve the signal quality through hardware based processing and the more data I can get, the better. My hope was to intercept the touch screen on a mobile phone to see if I could get to the raw data. I knew that it probably wouldn’t work out that way because most of processing would probably be done by the touch screen controller (TSC) but I thought I’d have a go anyway – a challenge is always fun.
Continue reading “Mini Project: Reverse Engineering the Samsung Galaxy S2 Touch Screen Interface”
Something that has been annoying me for a while is that there is no way to download your WordPress.com stats from the website!
So I wrote a script in python to allow you to download all of your stats into a spreadsheet. Here is the guide.
Basically, you need to provide the script with an example XML Http Request (XHR) where the website is pulling stats data from the WordPress.com server. From this XHR, the script then reconstructs a new XHR to get all of the data.
TLDR: Here is an RFM69 OOK library for MBED.
For an upcoming project I am using the RFM69 module by HopeRF.
The RFM69HW is a transceiver module capable of operation over a wide frequency range, including the 315, 433,868 and 915MHz license-free ISM (Industry Scientific and Medical) frequency bands.
Continue reading “Mini Project: Porting RFM69 Library from Arduino to MBED”