Switching of three-phase motors or a realization of a sophisticated installation is a breeze with industrial relays Finder.
As we know, a relay is a very versatile component, able to realize also various “sequential” circuits, when for example by switching one relay we´ll switch on a target device and at the same time we´ll enable (or disable) switching of another relay. In these case, it´s an often demand for a relay to have a sufficient number of poles. Majority of such “logic” circuits can be realized even with a common 1-2 pole relays, but it´s not always economical and it also brings another costs for solution of supplying and protection of logic circuits.
- Finder 55 – miniature industrial relay for a PCB or for socket, 2-4 poles, 7-10A (switching current up to 20A), 250/400VAC,
- Finder 60 – a more robust industrial relay for a socket, 2-3 poles, 10A (switching current up to 20A), 250/400VAC,
The LT8640 step-down regulator features Silent Switcher architecture designed to minimize EMI/EMC emissions while delivering high efficiency at frequencies up to 3MHz. Assembled in a 3mm × 4mm QFN, the monolithic construction with integrated power switches and inclusion of all necessary circuitry yields a solution with a minimal PCB footprint. An ultralow 2.5μA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. Its 3.4V to 42V input voltage range makes it ideal for automotive and industrial applications.
LT8640 – 42V, 5A Synchronous Step-Down Silent Switcher – [Link]
Buzz..Buzzzz..buzzzzzzzz .. That is how a lone mosquito irritates you in the middle of the night trying to convince you that his lullaby is helpful. Insignificant or not, But truly that is the underlying inspiration for this project. The Mosquito repellents have this obnoxious smell that I would not like to sleep in and these loner mosquitoes who just piss me off by buzzing in the ear, you have to choose a lesser evil. Obviously, I turned ON the repellent and in a while it goes off but the smell starts building up and I am too lazy to turn it back OFF, leaving the warmed blanket on a chilly Delhi December Night. The nocturnal dilemma .
RoomMote – Control the color and sockets of your Room – [Link]
Piotr wrote a post on his blog about using some of advanced capabilities of ADC in Arduino Due:
Today I’m going to present some of more advanced capabilities of ADC built in ATSAM3X8E – the heart of Arduino Due.
I like the Arduino platform. It makes using complex microcontrollers much simpler and faster. Lets take for example the analog-to-digital converter. To configure it even on Atmega328 (Arduino Uno/Duemilanove) you must understand and set correct values in 4 registers. And it can be much more in complex device, like 14 in ATSAM3X8E (Arduino Due)!
Playing with analog-to-digital converter on Arduino Due – [Link]
by Proto G @ instructables.com:
In this instructable I am going to show you how to make your own printed circuit board business card. I feel that these business cards will really help you stand out from the crowd and make a great impression. It might even add one more skill to your resume. Everyone that I have given these cards out to has been really impressed and thought it was a great idea. I have regular business cards as well and I only selectively give out my circuit board cards. You can take it to the next level by soldering different circuits on the cards. I made one of my cards into a standalone Arduino.
Design Your Own PCB Business Card – [Link]
The TSL2584TSV from the Austrian company ams AG is a highly sensitive light-to-digital converter chip that converts light intensity into a digital signal output via its I2C interface. The chip sensors consist of one broadband photodiode (sensitive to visible plus infrared light) an infrared sensitive photodiode and a photopic infrared-blocking filter on a single CMOS IC. Two integrating ADCs convert the photodiode currents into a digital output that represents the irradiance measured by each sensor channel.
The digital output value can be used by an external processor where the illuminance (ambient light level) in lux can be derived using an empirical formula to approximate the sensitivity response of the eye. The TSL2584TSV can also generate an interrupt which remains asserted until cleared by firmware. The chip operates from a supply rail between 2.7 and 3.6 V and can handle a maximum light intensity of 33000 lux. The chip is packaged in a 6-pad TSV outline measuring just 1.66 x 1.145 x 0.32 mm.
A Tiny Light sensor – [Link]
The circuit uses a SC16C650 to implement an IrDA interface. Infrared Data Association (IrDA) has defined a group of short-range, high speed, bidirectional wireless infrared protocols, generically referred to as IrDA.
The hardware section is composed of SC16C650 which is electrically hooked-up to an IrDA transceiver module. The electrical connection between the SC16C650 and an IrDA transceiver module is very straightforward, no external component is required except an inverter to invert the IrDA output signal. Besides the power supply noise-filtering components, the only other component required is a 14 Ω resistor. This resistor sets the current through the IR emitter, hence the power output of the transceiver.
IrDA Interface for Portable Devices – [Link]
Thinking about using Arduino to automate your home? Do it easily with our compatible board!
The Automation Board is 100% compatible with the Arduino Uno. This way it allows the enjoyment of all the easy programming and libraries that Arduino provides. It’s a strong and versatile board, with multiples resources to develop a fully automation system. The Automation Board dispenses the use of power sources.
Automation Board – [Link]
The Pocket Voltage Supply plugs into any 5V USB hub & allows the user to output 5V,3.3V,2.5V,1.8V,&1.5V. Use it for all your projects!
The Pocket Voltage Supply is a USB powered variable voltage supply. It can be powered with any 5V USB hub and can supply up to 1.5A. 5V USB hubs can be found almost anywhere; desktop computers, laptops, cell phone chargers, even portable USB battery banks. Pairing the Pocket Voltage Supply with a portable USB battery bank allows the user to test circuits and prototypes outside of a lab setting and even bring testing to the field!
Pocket Voltage Supply: A USB Powered Variable Voltage Supply – [Link]
The LTM8056 from Linear Technology is a 58 VIN, buck-boost μModule® (micromodule) regulator which requires just a few external passive components to complete the regulator design. Included in the package are the switching controller, power switches, inductor and support components. The basic external components needed are a single resistor to set the switching frequency, a resistor divider network to set the output voltage together with input and output capacitors. Other features such as input and output average current regulation may be implemented with just a few additional components. The LTM8056 operates with an input voltage ranging from 5 V to 58 V and can supply a regulated output voltage between 1.2 V and 48 V. The SYNC input and CLKOUT signal output provide clock synchronization options.
High Voltage Buck-Boost Regulator – [Link]