A new prototype of a lithium-sulphur battery – which could have five times the energy density of a typical lithium-ion battery – overcomes one of the key hurdles preventing their commercial development by mimicking the structure of the cells which allow us to absorb nutrients. This gets us a long way through the bottleneck which […]
Next-generation smartphone battery inspired by the gut Read More »
Troubleshooting iPhone problems can be a daunting task sometimes considering how complicated they are. It’s easy to overlook the simple things and on occasion you may replace parts that don’t need replacing. Batteries are no exception. I have seen technicians often replace batteries when they may not necessarily need to be or ignore the fact
iPhone Battery Charger / Tester Read More »
The simplest model of a battery comprises an ideal voltage source that connects in series with a resistance whose value—often a few milliohms—depends on the battery’s electrochemical condition and construction. If you attempt to use an ordinary ac milliohmmeter containing a kilohertz-range ac excitation source to measure a battery’s internal resistance, you get erroneous results
Dynamic-load circuit determines a battery’s internal resistance Read More »
This is a project that will show you how to create a Wi-Fi controlled RC Car that will recharge wirelessly while it is parked. Things used in this project Hardware components IDT Qi 5W Transmitter Prototype Kit × 1 IDT Qi 5W Receiver Prototype Kit × 1 Arduino MKR1000 × 1 • 2WD Robot Car
Wi-Fi RC Car – Qi Enabled Read More »
AIR Mouse is also called gesture-controlled mouse and it works based on hand gesture. In this project an accelerometer is used for measuring the tilt of hand in X and Y direction and moves the cursor according the tilt. In the project two types of circuit are used, one is the transmitter circuit and other
Project: Gesture Controlled Mouse (Air Mouse) Using Arduino & Accelerometer Read More »
There are many types of LCDs used in Electronic Projects. We have already used 16X2 LCD in many of our projects and also used TFT LCD with Arduino. You can find our entire 16X2 LCD related project by following this link, including interfacing with 8051, AVR, Arduino and many more. The ST9720 Graphical LCD is totally different from the Ordinary
Interfacing Graphical LCD (ST7920) with Arduino Read More »
About Burglars Recently the Spiegel published an article about burglars in Germany: Burglars prefer the dark months. In december the insurances report 3 times more housebreakings than in july. The police reports that it is very difficult to find the delinquents. Mostly there are no witnesses and no traces. Only in 2,6% of the housebreakings
DIY electronic RFID Door Lock with Battery Backup Read More »
More news: read all about the new AAduino Zero. News: the crowd sourcing campaign for the AAduino will start soon, sign up at CrowdSupply to be notified! The specs have been beefed with an STM32L0 cpu and the temperature sensor is now an industrial grade TMP102. Update: you can now order the AAduino PCB from DirtyPCBs.com and
AAduino – Arduino Wireless in AA form factor Read More »
Introduction This is a small bench power supply that is powered by two lithium-ion batteries. The project was inspired by Dave Jones from EEVblog but the design is completely mine. The voltage range is 0-20V regulated in 10mV steps and maximum current is 1A with current limit set in 1mA steps. Schematic Linear Voltage Regulator
AmpStrike – Battery Powered Bench Power Supply Read More »
A BIG HELLO! and welcome to Mixed Outputs first instructable. As most of my project involve electronics of some sort, having a good power supply is essential to be able to meet the demand of different power requirements. So I built me a bench-top power supply from an old ATX power supply Unit (PSU) that
Portable Adjustable Mini Power supply Read More »
