What is an LDO and How Does it Work?

When you need a voltage regulator for your circuit and do not have much of a voltage head room, the trick is to use an LDO or a low-dropout regulator. Normal regulators need voltage headroom of roughly around 3V to allow good regulation, but LDOs can do with a lot less – of the order of a few 100 millivolts. However, there are other considerations as well. To regulate and control an output voltage, it is necessary to source it from a higher input voltage supply. For normal regulators, the voltage Read more [...]

A New Raspbian for your Raspberry Pi

Your single board computer, the Raspberry Pi or RBPi runs an operating system, or more specifically a Linux OS. Keeping true to its form, the Linux OS comes in umpteen flavors and you can choose and pick the one most suitable to your purpose. Operating Systems are built for the processor in the system, and the most popular so far are the Intel family of processors. Since SBCs generally use the ARM family of processors, a special version of the Linux OS is available for them. Of the many versions Read more [...]

Powerful Energy Storage with Micro-supercapacitors

People have been trying to use supercapacitors to supplement batteries. Although capacitors do store energy, unlike batteries they charge up fast and discharge the energy stored quickly, such as in a camera flash. Common lithium-ion batteries take time to charge up and discharge according to requirement of the load. However, technology is catching up fast and new type of micro-supercapacitors is rivaling commercial supercapacitors in terms of storage capacity and power delivery similar to batteries. At Read more [...]

What are Polymer and Hybrid Capacitors?

The growing complexity of active electronic components and their applications has resulted in the use of different types of passive components, especially capacitors. The advances in conductive polymers now offer a universe of capacitors for embedded systems applications and others. Some advanced capacitors use conductive polymers for their electrolyte. Others such as hybrid capacitors use the conductive polymers in conjunction with a liquid electrolyte. Both these polymer-based capacitors offer Read more [...]

PIXY: Versatile CAM for Your Raspberry Pi

If you are looking for a small, fast, low-cost, easy-to-use, and readily available vision system for your Raspberry Pi or RBPi, then the Pixy can be a great choice. Pixy or CMUCam5 is somewhat more than a normal camera that you may have used so far for your single board computer. It comes with several features not available on most camera systems. First, Pixy is versatile – use it for all kinds of projects. Along with the hardware, you will receive all kinds of information – PCB layout, bill Read more [...]

Fanless Mini-PC Consumes only 5W

Industrial control applications, digital signage and thin client users require low-power computer systems. The F200 mini PC from Giada Technology is an ultra-compact unit measuring only 4.6 in x 2 in and a thickness of only 1.2 in. Other desktop PCs use up more than 100 W of power, but the F200 takes up only 5 W at full load. At this level of power consumption, there is no need for cooling, and consequently, the mini PC is a fanless unit. The fanless F200 mini PC takes up the minimum real estate Read more [...]

AT21CS01 from Atmel: This EEPROM Does Not Require External Power Source

AT21CS01 from Atmel is a two pin serial EEPROM. Astonishingly, it does not have a Vcc or power supply pin characteristic of any IC and does not require an external power source to work. This amazing memory IC operates with only a data pin and a ground pin. The memory in the IC is organized as 128x8 bits, that is, a total of 1-kbits. The single-wire device, AT21CS01, operates with only an SI/O and GND pin. The SI/O signal functions as a combination of data and power line. That means, apart from Read more [...]

An Energenie Pi-Mote controller Board for Your Raspberry Pi

Those looking for a low-cost automation and home control solution can use the Pi-Mote controller board from Energenie. The Pi-Mote controller board is an add-on for your single board computer, the Raspberry Pi or more simply, RBPi. With this combination, you can control electrical appliances connected to special radio controlled electrical sockets. Working at 433.92 MHz, the Pi-Mote controller board for radio-controlled sockets is easy to install and command. The product offers a safe and simple Read more [...]

Expand the Ports of your Raspberry Pi

The ubiquitous single board computer, the Raspberry Pi, or the RBPi, as it is fondly called by its users, is rich in General Purpose Input Output or GPIO pins. These are lined up on the board in two rows of 13 easily accessible pins, totaling 26 of which 17 are GPIO pins, the others being either power or ground pins. GPIO pins provide a physical interface between the RBPi and the external world. Speaking plainly, these act as switches that the user can turn on or off as inputs or the RBPi can Read more [...]

Cool your Raspberry Pi with PiCoolFan

Applications for the single board computer, the Raspberry Pi or RBPi are exponentially increasing and there is a great demand on the RBPI for extending its performance to the limits. While users try to push their RBPi to achieve higher results with overclocking, this may result in SBC frying itself, unless the CPU temperature is kept in check. To enable complete control over the CPU temperature, an advanced cooling fan system is available – PiCoolFan. On the bonus side, the system also includes Read more [...]