We are completely familiar with the fact that Lithium Polymer Batteries contains great power in a small package. But they are designed in a manner which is considered tricky in order to charge securely. In a tutorial of Adafruit LiPo Chargers project, a charging cycle is designed for safely charging 3.7v Lithium Polymer cells.This project aims to design the batteries that can adjust more than 3.7v. But forcing more voltage into a multi-cell pack is dangerous. Therefore, Adafruit has come up with another tutorial that shows how to safely charge multiple cells while maintaining a balanced charge.
Yes, you got it right, you are now free from carrying an extra charger for charging your mobile batteries. We all use mobile phones and definitely, a discharged battery makes the phone useless. A wireless recharging battery case can be a solution. You just have to make sure that it is gently placed near the battery and the power transmitter, How can we do this? The following tutorial of the Adafruit has the answer.Have a closer look, firstly just to protect the battery case from getting damaged. Make sure that the Qi charging stickers must be used that terminate in Micro/Mini USB connectors. Be careful while modifying high capacity batteries.
This project by Do-It-Yourself directs you to develop a motorized zoom machine, which can be perfectly used for spiral star trails or for zooming the lens in and out. Further, the gear sizes and the lens gear can be altered accordingly to suit your camera’s zoom lens. In this project, a Nikon D800 with a 14-24mm zoom lens is used as an example.Servo City list of this project includes Gear Motor, Aluminum Clamping Motor Mount, Aluminum Channel, Square Screw plates, Zinc-Plated Alloy Steel Socket Head Cap Screw, Bore Set Screw Hub, Shafting & Tubing Spacers, OD Flanged Ball Bearing (Stainless Steel), DC Power Cable, Digital Manual Speed Controller, 12v Battery Tray, Female Crimp Terminals ad D-Shaft ad some essential tools.
In another DIY project of a raspberry engineer, they have attempted to make a Raspberry Pi Computer that only cost $35. This mini-sized PC hold various possibilities and can be used in the form of PVRs (personal video recorders), retro gaming machines, weather stations, in-car PCs, jukeboxes etc. The creativity completely lies in your hand and brain that how you want to use this product.This ultra-portable, mobile Raspberry Pi that you can take to-go is an open source project. And here, the developer has explained every bit of this project. Talking about the LCD screen, in this budget-friendly project, the LCD is used from an aftermarket backup camera system that can be installed in a car.
This is a simple yet effective project by DFRobot, where he has introduced a heart rate monitor. Basically, this device has the ability to acquire a heart rate equivalent from a pot meter and exhibits the range one of 3 LED. Moreover, this is also displayed by pointer controlled by a servo motor and on mobile phone Apps.We must understand that this project is the combination of two rudimentary Arduino example projects that uses Intel Curie BLE capability and Servo motor. The DFRobotGravity: Starter Kit for Genuino / Arduino 101 is being used that permits connection establishment to the Pot meter, three LEDs and the Servo Motor in the simplified manner.
As an engineer or a crazy techie, you must have opened up various electronic gadgets and then try to reassemble it. I am pretty sure, you also have attempted to create something innovative from the garage. Well, those activities are the part of your beginner stage. This article, which is posted by a raspberry engineer is posted under Radio Projects, where a radio is made into a lunchbox!Different from your earlier reassembling activities, this project is at an advanced stage, which contains codes and other serious technical stuff. This homemade radio has 6 buttons and a 20×4 LCD screen, which contains “ON” and “OFF” button along with “BACK”, “PLAY”, “STOP” and “NEXT” buttons. The device is connected to the internet via Wi-Fi and with the help of USB hub connected through a Pi-Supply, the radio is powered.
Jacob Martin, in one of his project, has made some milli or microfluidics by using the free space on the template and find out the probability of using laser engraving and cutting for homemade microfluidics for simple lab-on-a-chip applications. The microfluidic devices used in this project is built by using femtosecond laser machining and spectroscopy. The material used here is acrylic 3mm and two different types of chips are made where one is engraved and other is cut. Install Inkscape, which is an open source vector art drawing program, to set up and to download the template from the website. After this, two dissimilar etched designs are shaped – a spiral and a shrinking channel. As we proceed, the pictures of the shrinking channel design can be clearly seen with the machined beam profile of 100 microns.
The usage of low-cost spectrometers becomes mandatory in certain projects. Their consumption in many applications is associated with the relative intensity of different colors There are numerous projects on the internet too that uses compact discs and low-cost CCD detectors from cell phones or webcams to conclude different colors, emitted or absorbed by objects.But these spectrometers have one large blemish – auto-exposure, where the time taken by the CCD to accumulate light from the sensor is dynamically adjusted. This facility is present in some costly cameras but not in cell phones and webcams. Hence, the comparison between dissimilar spectra intensities becomes challenging and it is impossible to get reliable measurements of intensity out of these instruments.
AxiDraw is the product of Evil Mad Scientist, which is a versatile pen plotter. This product holds the capability of writing or drawing on almost any flat surface with any writing implements to handle boundless diversity of applications. Its exclusive design sorts a writing head that spreads beyond the machine and allows drawing on objects larger than the machine itself.This exceptionally resourceful device is designed to assist a varied range of specialized drawing and writing requirements on daily basis.
In another extraordinary project of electronics hub, they have designed an Arduino based Real Time Clock with alarm. The gripping part of this clock is that it is battery powered and it runs when the microcontroller is reprogrammed or there is no external power. As soon as the power is reinstated, RTC shows the real time regardless of the fact that the power was off for long duration.Real Time Clocks are often useful in data logging applications, time stamps, alarms, timers, clock builds etc. This sort of functionality is often seen in computers, where this real time clocks are referred as CMOS (Complementary Metal Oxide Semiconductor).
Home automation is now a next door thing after the introduction of the Arduino and other sensors at affordable rate. Anyone with little knowledge can automate their home and it is no more an expensive deal. Whether you want to control lights through the web or keep record of your activity, it provides a multidimensional yet distinctive approach for the home automation.Sensorino is the combination of cheapest components accumulated from different sources along with some software, whose server runs on a tiny Linux router.
Private eye pi is a Raspberry Pi projects website that deals in programming and electronics of building home security. In one of their post, they have explained the process of building a flood or water presence sensor in your house, if you experience water leak in your area on frequent basis causing expensive damages. This sensor is connected to your Private EyePi alarm system which can trigger the alarm or send email alerts. It provides a dual opportunity where one can wire the sensor directly to the Raspberry Pi or to wireless water sensor. The sensor is designed with pleated strips of metal which change as soon as it detects the presence of liquid and consequently changes the resistance for activating the internal switch. It is mounted at some height with the attached wire along with the wireless sensor or Raspberry Pi.
With new era, we experience a different type of technology, almost in every sphere, which is more or less an up gradation of its following. Their only aim is to make life simpler and little advanced. But as far as charging of a device is concerned, we haven’t seen much changes in our last decade. We are still confined to traditional wire system of charging.With this post by mepits, an attempt is taken to make a device or a system, which can charge up multiple systems and free our world with those tangled wires. This is a step ahead to become wireless power transfer using inductive coupling. The transmission of wireless power by using inductive coupling is one of the reliable methods to charge devices.
In a case study of efficiency of conference room, performed by Liang Z. Zhang, who is an application engineer at Intel® platform, has provided an innovative method to build a Smart Conference System. He has used and utilized ZigBee on the Intel® Edison Platform to bring out the maximum efficiency of a conference room.As per the study of Mr. Zhang, the low utilization efficiency of a conference room is primarily because of two main reasons. First one refers to the booking of a conference room, but not using the room at the scheduled time and second is basically because a meeting may end early that leaves the room empty.
Based on the series of “Introduction to Computer Programming”, a gentle introduction is being given to Arduino programming. But before going through to computer programming and Arduino, complete Arduino Basic Basics12 guide. A special decision-making power is instilled in the Arduino bit that will help in creating a multi-player game show. It uses few bits and requires a little knowledge about random trivia.The program includes Circuit, P1 Power Bit, Arduino Bit, LEDs, wires, buzzers etc. The circuit can be built easily at home wherein each button, P1 Power Bit goes in. this is possible by using the W19 wire and if opting for a longer circuit then 2 W1 wires are used. Although the best choice is A0 and A1 pins for input and 1 and 9 pins for after.
The Photon Factory made at the University of Auckland which is a laser lab, have been working on the electronic building of a nanosecond transient absorption spectrometer, which will be responsible for exciting molecules initially and then detecting the excited state. Further, another laser will look out for the length of the stability of the excited states, which will be used to do research on photoactive molecules. The molecules are made up of nanoparticles that can convert sunlight into energy. Fullerene triad molecule is the type of molecule where light excites an electron in the porphyrin and then fullerene takes up the electron.
A simplest electric motor contains a drywall screw, one 1.5 V alkaline cell, six inches of plain copper wire and one small neodymium disk magnet. That’s it, you don’t need any other tools or supplies and in 30 seconds, an electric motor can be made that can run in excess of ten thousand RPM. Windell Oskay confirms this idea.Brushed DC electric motor is the most common type of electric motor and they are found essentially in every object that moves or run on batteries. The specialty of the motor is that it attracts an electromagnet towards a permanent magnet and when the two are close enough, the polarity of the current is reversed, which now repels the permanent magnet.
Do you want to build a spy camera out of your old webcam in minimal cost? Then this tutorial by UGOlog can be a rescue to your need. The best part is that you don’t need any technical skills to build such camera and it only takes 30 seconds to setup. The only tools and supplies it requires are USB webcam, old power supply from cellphone or similar small gadget and other basic tools like Screwdriver, drill etcFirst of all, the appearance of webcam case need to be changed as it is big and recognizable and will have hard time hiding it.
Almost everyone with a laptop has experienced that how easily the power adaptor of the laptop breaks down. The most vulnerable and common part, the adaptors are directly attached to the motherboard as well as heat. Moreover, it is constantly moved and shifted that causes the connector to become loose and sloppy. This combination, in due course, causes the connection to stop working altogether.To solve this problem, Apple, in their laptops is using a magnetic power adaptor but they have patented this idea. Diyourself has come out with their own version of a magnetic power adaptor for an Acer 1410 laptop. One can easily amend the steps provided for Acer to any laptop. They are not only effective but comparatively easy to build with some common materials.
If you want to check the level of charging of a battery, then one can use an Arduino battery tester. It can be an attractive tool to detect the leftover battery and then how to use them judiciously. This project is categorized as a basic Arduino project for beginners and hence can be extended to a proper setup.The project includes equipment like Arduino Uno, Green, red and yellow LED, Zener diode, resistors, and breadboard. The Arduino Battery Tester Circuit is easy to assemble, where the Zener diode is used to test batteries with a voltage greater than 8 volts. This diode allows current to flow in one direction and it reaches the breakdown voltage, from where voltage goes in the reverse direction.