After discovering how cool RGB LED strips are, I decided to make a bandwidth monitor for the Internet connection at our place. Since there are many users active on the same connection there’s bound to be conflicts where someone is gaming and another is downloading, causing the ping to fluctuate (even with QoS HTB-init set up).
Using RGB LED Strips to Monitor - [Link]
I’m often asked by hams and hobbyists – I want to buy an oscilloscope, what bandwidth scope do I need? I usually answer – buy as much as you can afford, even if you are working on low frequency circuits. This video shows an example of why. Even simple audio circuits might have some hidden evils!
Analog & Digital Oscilloscope Bandwidth Considerations - [Link]
Hijacking power and bandwidth from the mobile phone’s audio interface. Creating a cubic-inch peripheral sensor ecosystem for the mobile phone…
HiJack is a hardware/software platform for creating cubic-inch sensor peripherals for the mobile phone. HiJack devices harvest power and use bandwidth from the mobile phone’s headset interface. The HiJack platform enables a new class of small and cheap phone-centric sensor peripherals that support plug-and-play operation.
Hijacking power and bandwidth from the iPhone’s audio interface – [Link]
This project is a meter that measures your Internet connection bandwidth using an antique gauge. It is based on an old voltmeter and on Arduino board. A perl script is getting the information from a Linux router and send it to Arduino via serial connection emulated by FTDI chip. The Arduino convert it into a pulse width. To drive it full scale it needs about 10V and 150mA and that too much fro Arduino to handle, so it uses a switching amplifier made from transistors.
TorrentMeter – A steampunk bandwidth meter – [Link]