DIY Lithium Battery Charger Shield for Arduino

In this project, we are building a programmable single/multi cell lithium battery charger shield for Arduino. The shield provides LCD and button interface which let the user set the battery cut-off voltage from 2V to 10V and charge current from 50mA to 1.1A. The charger also provides the ability to monitor the battery status before and during charge. The charger is based on LT1510 Constant Current/Constant ...

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Design a romantic PCB using a free PCB design tool – EasyEDA

Have you ever tried to design a romantic PCB for your lover or an interesting PCB for your children or friends on special day? Why not? PCB also could be an amazing gift which comes from your creativity. Here I’d like to share a romantic and practical PCB to you.   This is my PCB Board. It looks very simple but interesting, meaningful, romantic..... You can access this interesting project here: https:/ ...

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Homemade Plotter (CNC Machine)

All parts were developed separately. This allowed adjustments in the assembly as well as smaller changes in case the design of one or other part become required. Focus on low cost and use of materials easily accessible in the local market.   For more detail: Homemade Plotter (CNC Machine) ...

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analog input

This program will allow adjust the speed of a blinking LED with analog input. Follow this patch to connect a potentiometer to your Arduino board. Then put an the long lead of an LED in pin 13 of your digital in/out, and the short lead in Ground. /* * AnalogInput * by DojoDave <http://www.0j0.org> * Turns on and off a light emitting diode(LED) connected to digital * pin 13. The amount of time the LED w ...

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Arduino circuit design program

A) Fritzing: Fritzing is an open-source hardware initiative that makes electronics accessible as a creative material for anyone. We offer a software tool, a community website and services in the spirit of Processing and Arduino, fostering a creative ecosystem that allows users to document their prototypes, share them with others, teach electronics in a classroom, and layout and manufacture professional pcbs ...

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Arduino ambient light sensor

Product Description This is a light sensor that I’ve been waiting for, for a long time. If you use photo cells or phototransistors, or other light sensors such as the useful TAOS TSL series, you know that every one leaves something to be desired. In robotics for example, sensors either tend to saturate in dark corners under tables, or else in bright sunlight when they go for walks outside, rendering the rob ...

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Arduino development environment

Introduction This tutorial will walk you through downloading, installing, and testing the Arduino software (also known as the Arduino IDE - short for Integrated Development Environment). Before you jump to the page for your operating system, make sure you’ve got all the right equipment. What you will need: A computer (Windows, Mac, or Linux) An Arduino-compatible microcontroller (anything from this guide sh ...

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Its hard to resist to R&S HMO1002 oscilloscope for 610 Euro

Professionals, school laboratories and amateurs can now gain this new, extra affordable digital MSO oscilloscope in a limited offer.   Probably you may have noticed, that company Hameg became a member of Rohde&Schwarz group and new oscilloscopes already carry only an R&S logo. However the name of series HMO remains, which represents for several years products with an excellent price/ performance rat ...

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Record from SOS webinar – Your way to simple and efficient power supply design with Linear Technology

Who is the winner of umodule demoboard from Linear technology? In addition to getting to know the winner, you can also watch the video record from webinar... Linear Technology’s family of DC/DC Module products simplifies your analog design. By integrating the DC/DC controller, power switches, magnetic, and a modest amount of capacitance, uModules power products will save precious space on the PCB and reduce ...

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A new board for the 3Drag: there’s more than Sanguinololu using arduino

When we first released our 3D printer, we tried to use some parts that were already available and tested, in full respect of the open source philosophy. In particular, we decided to use the electronic card Sanguinololu. The “open” firmware we chose, the Marlin firmware by Erik van der Zalm, solved the biggest part of the computer interface issues. The Sanguinololu was great, but being innovators by vocation ...

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Focus on Arduino YÚN: a board for all, that makes life easier

This post introduces in details one of the latest boards from the Arduino Team: a board that we still didn’t cover that much on the blog. YÚN’s DNA is that of the Arduino family lately open to new requirements and perspectives: Embedded Linux, Ethernet and WiFi with a board that is easy to use and just ready out of the box. Once we put our hands on the Arduino Yun months ago, we could not resist the temptat ...

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RFID Access Control System using Arduino

RFID technology is used for a wide variety of applications including access control, package identification, warehouse stock control, point of sale scanning, retail anti-theft systems, toll-road passes, surgical instrument inventory, and even identifying individual sheets of paper placed on a desk. RFID tags are embedded in name badges, shipping labels, library books, product tags and boxes, installed in ai ...

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