Bus pirate, 5110 LCD interfacing

•2014/09/02 • 2 Comments

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The Bus Pirate has to be one of the handiest debugging platforms ever created. It makes it really easy to ensure you know how something works before placing it in your final design. Continue reading ‘Bus pirate, 5110 LCD interfacing’

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Creating my first (intentional) oscillator, part 1.

•2014/08/24 • Leave a Comment

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As part of my RF beacon project I needed to built an oscillator, not just wanting to copy something I had to jump through a number of hoops to really understand what was going on. The practical limitations when building oscillators are actually pretty complex. Continue reading ‘Creating my first (intentional) oscillator, part 1.’

Creating the perfect flashlight

•2013/10/18 • Leave a Comment

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Low cost flashlights are pretty awesome but I just couldn’t find one that did exactly what I wanted (nor a perfect mod). Being an avid Airsofter I was looking for something that I could use as a high power strobe but also as an every day carry light. Strobes on the market tend to be rather expensive for what you get and budget lights aren’t really suited for tactical strobes (although they do often have strobe modes).

Continue reading ‘Creating the perfect flashlight’

Prototyping the MAX9814 automatic gain control microphone amplifier IC.

•2012/07/17 • 3 Comments

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Not wanting to wait for a breakout for this IC I attempted to dead bug it instead. This IC is extremely small, at 3mm X 3mm and with 14 pins it looked somewhat daunting. From the pic you can see that it turned out fairly well. There’s really no point in being afraid of SMD parts, here’s a couple of tips:

Continue reading ‘Prototyping the MAX9814 automatic gain control microphone amplifier IC.’

Bypassing Imageshack hotlinking restrictions.

•2011/10/31 • 1 Comment

We’ve all seen the Imageshack “Domain unregistered” image, this happens when the domain the image is hotlinked from isn’t registered with Imageshack, it’s bloody annoying, especially on forums. Luckily there’s an easy way to remove it and view the original image and you don’t even have to do it on a per site basis.

Continue reading ‘Bypassing Imageshack hotlinking restrictions.’

Basic RF sniffing with the Bus Pirate

•2011/06/19 • 8 Comments

Getting some data out of those cheap dumb transmitter/receiver pairs takes the better part of 30 seconds. I hooked one up to see if I could capture some remote keyless entry traffic. (and it worked)

Continue reading ‘Basic RF sniffing with the Bus Pirate’

Crawling websites using curl and bash.

•2011/05/19 • Leave a Comment

Every now and then I need to crawl some website or automate a web form, the easiest way to accomplish this is with a simple shells cript and parsing the data manually. I did this recently with www.samair.ru and decided to do a quick writeup.

Continue reading ‘Crawling websites using curl and bash.’