What is an H-Bridge?

Those who are into robotics know that robots, just as humans do, also need to suddenly change course when they run into an obstacle in their path. Changing course while walking may not be a big deal for humans, but for robots, and especially for those who design them, it is sometimes a serious challenge. For example, consider a robot that is moving towards an obstacle, which it has to avoid and proceed on a parallel path. A robot with two wheels will need to stop moving as it reaches the obstacle, Read more [...]

What is a 4-20 mA Current Loop?

The pre-electronic industry used pneumatic controls. Compressed air powered all ratio controllers, temperature sensors, PID controllers and actuators. The modulation standard was 3-15 pounds per square inch, with 3 psi standing for an active zero and 100% represented by 15 psi. If the pressure went below 3 psi, an alarm would sound. Electronic controls made their debut in the 1950s. A new signaling method with 4-20 mA current emulated and replaced the 3-15 psi pneumatic signal. As wires were Read more [...]

Automation Controller Uses Raspberry Pi Compute Module

Remote control has a new face. Based on the tiny credit card sized single board computer Raspberry Pi or RBPi, Techbase has designed a Linux-based ModBerry automation computer. They back it up with an iMod cloud platform. ModBerry is all about remote control. This version of RBPi was introduced lately and known as the Compute Module or Computer-on-Module. People in Poland have taken up the RBPi Compute Module wholeheartedly and turned it into ModBerry. Initially, the Polish startup Sher.ly started Read more [...]

Scalable Electronics – the automakers choice

Those who have watched the movie Total Recall may recall seeing automobiles driven by robots. Passengers need to mention only the destination and sit back and enjoy the ride. The robot drives them to their destination. Well, those days may not be far off in reality. Automobile development is proceeding with technological advances that allow vehicles to control themselves to the extent of driving with minimal or no human assistance. However, such developments cannot happen overnight. Then again, Read more [...]

Raspberry Pi Radio

Raspberry Pi or the RBPi, the tiny credit card sized single board computer is so affordable that people can easily create single purpose appliances around it. For example, just by adding a small LCD that has a few buttons and a USB wireless network adapter, you can build a self-contained music streamer around the RBPi. This you can move around to any room of the house. The only extra items you need to connect to it are power and speakers or headphones. Use the Adafruit LCD kit that has a keyboard Read more [...]

More Italfarad, Ducati & Gentex Motor Start & Run Capacitors in stock!

You've been asking for them - now we have them. We've added more values to our motor start and motor run category including some from Italfarad, Ducati and Gentex. Check out our full selection here: motor start / motor run capacitors Need a different value? Ask us, we might be able to get them for you! Read more [...]

Project Firefly – the electric helicopter

A subsidiary of the United Technologies Corp., Sikorsky Aircraft has revealed its innovation at the Farnborough International Air Show - a demonstrator for an all-electric helicopter technology. The actual demonstration aircraft named The Firefly will be unveiled on July 26 at the Experimental Aircraft Association at their AirVenture exhibition to be held in Oshkosh, Wisconsin, USA. Being a part of the world symposium on electric aircraft, the demonstrator is expected to be one of the main attractions. According Read more [...]

DIY Google Glass with Raspberry Pi

If you thought Google Glass was something beyond your capabilities, well you can think again. Adafruit has a Do-It-Yourself design that can turn a pair of display glasses into the coveted Google glass type of form factor. Not only does it clip to the prescription glasses you are using, it can display any type of device that puts out Composite Video such as the Raspberry Pi or RBPi does. With 3D printed parts you can download free, one pair of these wearable video glasses will cost you only $100. Read more [...]

What are wireless power coils?

More than 120 years ago, a genius by the name of Nicholas Tesla conducted some experiments that laid down the technology of distributing electricity without wires. Today, we are using Tesla's technology to charge our mobile phones. More than 50 million mobile phones remain alive through inductive charging. We use induction stovetops in our kitchens. The technique of wireless transfer of power is certainly proliferating. A large part of the world population is completely dependent on smartphones Read more [...]

Are Biometrics Related To The Internet Of Things?

With the Internet of Things or IoT, users and developers can easily augment its functionality, since the IoT is designed to be extensible. Therefore, it is not a far-fetched expectation that the IoT is going to be all over the place and users will get all types of data from it. According to a recent study by the Biometrics Research Group, biometric sensors are being projected as the next big step in providing the necessary security for accessing that data. That is good news for the biometrics industry Read more [...]