Friday Fun: DRM chair

Taking DRM further than it’s gone before. DRM (Digital Rights Management) is something that we often just have to put-up-with in software and digital media files. Obviously DRM is a great tool for companies point of view to make sure we only use software and data as they intended, but outside planned obsolescence, there isn’t


FemtoDuino is probably the smallest 328 based Arduino compatible board around. Those things are tiny: foot print is 20.7×15.2mm. They’re an Atmega328 that is arduino compatible. Hands on with the super tiny arudino: FemtoDuino article and this video give you an introduction to those interesting looking small boards. The downside of them is that they

Arduino Esplora

After I build my Atari joystick to USB conversion I saw news that the folks at Arduino seem to be stepping up their game on the same application area. With the new Arduino Leonardo board able to emulate USB keyboards and mice right out of the box, it seems the perfect time for Arduino designers

Christmas lights with Arduino

I have some years posted links to different Christmas lights project on the net. This year is no different. Here is the first one on this topic. Christmas light controller is its own percussion section article tells that Jason and his father took advantage of a week off of work over Thanksgiving to design and

Arduino Leonardo and Micro

Arduino Leonardo is a pretty new microcontroller board based on the ATmega32u4. It has 20 digital input/output pins (of which 7 can be used as PWM outputs and 12 as analog inputs), a 16 MHz crystal oscillator, a micro USB connection, a power jack, an ICSP header, and a reset button. It contains everything needed


Netduino is an interesting dev board built around the .NET Micro framework with the goal of being compatible with Arduino shields. Netduino is an open source hardware platform that can run .NET Micro Framework 4.2 code. The Netduino is a dev board built around the .NET Micro framework with the goal of being compatible with

H-Bridge Motor Driver Module

H-bridge circuit is a very useful in electrical motor controlling. You can drive a DC motor easily at both directions with H-bridge, and if you add some PWM to driver circuit you can even control the motor speed on both directions. There are very many simple H-bridge circuit designs in Internet. Nowadays there are many

Very minimal Arduino-compatible circuit

I saw some days ago a pointer to The ultimate low-cost dev board. Or at least looks pretty close to it. The shrimp is a very, very minimal Arduino-compatible circuit meant to control all the pins on an ATMega328. The components only cost about £1.40 ($2.25 USD) when bought in volume, making it perfect for


OpenPLC, for industrial automation to Halloween displays article factories have programmable logic controllers to take care of their automation tasks and they are also good devices to control your Halloween effects. open-plc project is an open hardware design to build your own programmable logic controller. Included in the OpenPLC are four 24V inputs, four 24V