Home Blog  





7 Jun 2015

1

by Mingyuan Huang & Jie Zhang:

Our ECE 4760 final project is to build a microcontroller based smart medicine box. Our medicine box is targeted on users who regularly take drugs or vitamin supplements, or nurses who take care of the older or patients. Our medicine box is programmable that allows nurses or users to specify the pill quantity and day to take pills, and the serve times for each day. Our smart medicine box contains seven separate sub-boxes. Therefore, nurses or users can set information for seven different pills. When the pill quantity and time have been set, the medicine box will remind users or patients to take pills using sound and light. The specific number of pills needs to be taken will be displayed by a seven segment led display placed on the corresponding sub-box. Compared with the traditional pill box that requires users or nurses to load the box every day or every week. Our smart medicine box would significantly release nurses or users’ burden on frequently preloading pills for patients or users.

Smart Medicine Box – [Link]

7 Jun 2015

Teardown & Repair of an Agilent EPM-441A (E4418A) Power Meter Plus Tutorial on Power Sensors – [Link]

6 Jun 2015

Clones of the popular Arduino Uno are now so cheap, it’s difficult to save money by building your own. But the knowledge gained from assembling an Arduino from individual parts, makes the exercise well worthwhile.

1-Day Project: Build Your Own Arduino Uno for $5 – [Link]

5 Jun 2015

flashprog-prototype-small1-600x398

Dilshan Jayakody published a new project, the FlashProg – a USB serial flash memory programmer:

FlashProg is USB base flash memory programmer to work with 3.3V serial flash memory devices. This programmer is specifically design to read, program and configure 25x series, serial flash memory devices which are commonly used to store BIOS in PC mainboards.
Originally we design this project to read and program BIOS of Foxconn G31MXP mainboard. Our version of G31MXP contains Macronix MX25L8005 8M-Bit serial flash memory and we use this programmer to load some of our custom BIOS to this serial memory.

FlashProg – USB serial flash memory programmer – [Link]


4 Jun 2015

DIY-Dual-Stepper-Motor-Driver-Shield-for-Arduino-in-action-620x549

Stepper motors are brushless DC motors which can move in discrete steps thanks to the special coil arrangement inside. They are very popular in DIY and industry projects which require accurate mechanical movement control. In this SoloPCB project, we are building a dual stepper motor driver shield based on two Allegro A4988 ICs which can supply up to 35V and 2A and provide overcurrent and thermal protection.

DIY Dual Stepper Motor Driver Shield for Arduino – [Link]

4 Jun 2015

clock-1024x383

by sdgelectronics.co.uk:

I recently found six 2.3″ red 7 segment displays in my collection which I purchased from Rapid Electronics when they were clearing out non-RoHS stock. Since I have no clock at my work bench I decided to construct one from some prototyping pad board, a Microchip PIC18F26K20 microcontroller and a Dallas DS32KHZ temperature compensated 32.768kHz crystal.

6 Digit LED Clock – [Link]

4 Jun 2015

Print

The LT3952 is a current mode step-up DC/DC converter with an internal 60 V, 4 A DMOS power switch. It is specifically designed by Linear Technology to drive high power LEDs in multiple configurations. It combines input and output current regulation loops with output voltage regulation to operate as a flexible current/voltage source. The LT3952’s 3 V to 42 V input voltage range makes it ideal for a wide variety of applications, including automotive, industrial and architectural lighting.

60V LED Driver with Internal 4A Switch & PWM Generator – [Link]

4 Jun 2015

obr1661_1

New series of Friwo FOX mains adapters meets the most stringent energy regulations already now and at the same time it´s more compact than its predecessors.

DoE 2016 is a known term naming stringent regulations established by DoE (department of energy USA) valid from year 2016. Among other things it brings a requirement for a standby power consumption of small adapters to be below 0.1W. In Europe we have here a limit of 0.5W for majority of small adapters, but even here can be expected toughening in the nearest years.

That´s why German company Friwo as a long-term long-term OEM producer of power supplies and adapters comes with a new line of mains adapters named “FOX”. Besides high efficiency, these power supplies are also extraordinarily compact. Already recent series MPP and GPP are very compact, but FOX is a “step further”, as also illustrated on attached picture. System of exchangeable primary and secondary adapters (connectors) enables to use the same power supply for various applications and in various countries.

Even the FOX series meets various international requirements and obtained many approvals. a medical version will be also available soon. The FOX series is a novelty – 12W types are available upon order. Gradually also other types – FOX 18, FOX 30 a FOX 6 will be produced.
FOX series, as the only type on the market that meets criteria for IP42 protection – with selected primary adapters (connectors).
The first type from the FOX series – FOX 12 Office 5V/2200mA (1896623) with the 5V output voltage can be already found in our standard stock offer. As the power supply is designed as “modular”, it´s necessary to also buy appropriate primary and secondary adapter (connector) and the output cable, i.e. for example FOX Adapter/EURO (1844847) , COAXCON5.5/2.1/9.5 (1807700) and FOX Distribution DC-Cord.


An adapter with standby power consumption below 0.1W already on stock – [Link]

4 Jun 2015

The automotive industries are now into electronics applications in which embedded systems are already part of its major components. In this design, it features the Peripheral Sensor Interface 5 (PSI5), which is the most efficient standard interface of sensors and electronic control units in automotive. It supports complete airbag system that includes system power mode control, supplies for squib firing, satellite sensors, and local Electronic Control Unit (ECU) sensors and ECU logic circuits. It has dedicated safing state machine that complements the airbag’s MCU hardware/software safing approach. The system itself is capable of diagnostics and self-protection.

The design is comprised of MCZ33789 Freescale airbag system basis chip that manages the entire airbag partitions and some major components like squib driver IC, SPI communications with MCU, accelerometer sensor, satellite sensors, and dc sensors for monitoring. The squib driver IC supports air bag modules and seat belt retention that functions with accelerometer sensor. The MCU provide the connection of airbag system with the entire electronic applications of the vehicle. The LC filters are provided to ensure frequency range.

The design is used in different airbag system in which it optimizes the capability of providing safety to users. It can be used for further development of safety system in automotive and other vehicle that is prone to crash or collisions. It can help save lives during accidents.

Airbag System Basis Chip (SBC) with PSI5 – [Link]

4 Jun 2015

electronics-hobbiest-1306121638_500_178

BELMONT, Calif.–(BUSINESS WIRE)–A comprehensive study of electronics hobbyists released today found that over 68% of hobbyists believe electronics as a hobby is essential to fueling the American economy. Over 1700 electronics hobbyists participated in the study, the Great American Electronics Hobbyist Census, conducted by electronic component distributor, Jameco Electronics.

In 2014, electronic component shipments in the United States grew to 4.9% according to the Commerce Department—well ahead of the growth of the overall economy. Participants cited component availability and affordability as a driving factor behind future growth in the hobby.

“By all measures, the electronics hobby is booming,” said Greg Harris, Jameco Vice President of Marketing. “Our study found an underlying passion for electronics that builds the kinds of skills that make the American economy strong.” Serious electronics enthusiasts expect growth of the hobby to continue. More than half of the study respondents state they plan to increase the amount of electronics projects they complete over the next five years.

Jameco Electronics Hobbyist Study: Electronics Skills Are Critical to Fueling American Economy – [Link]



 
 
 

 

 

 

Search Site | Advertising | Contact Us
Elektrotekno.com | Free Schematics Search Engine | Electronic Kits