David Jones has another useful video tutorial about how to safely charge Lithium Ion and Lithium Polymer batteries with a bench power supply. The purpose of this tutorial is to learn how to use your lab power supply to charge your Lithium Ion battery when you don’t have a special charger circuit to do so. […]
Using A Bench Power Supply To Charge Lithium Ion Batteries Read More »
Welcome to the second post of the “Exploring Eagle CAD ULPs” series. Every week we will publish a new post about one useful ULP in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C-like syntax and can be used to access the EAGLE data structures and to
Exploring Eagle CAD ULPs #2 – ‘Unrouted.ULP’ Zoom To The Last Left unrouted Wire Read More »
There are a number of electronic component search engines in the industry, but finding the best price can often be time intensive. Quite often purchasers are simply looking to locate the most competitive price from suppliers and fast! OEMsecrets has launched the first price comparison search engine in the electronics market. The UK shopping site
OEMsecrets.com – Electronic Component Suppliers Price Comparison Search Engine Read More »
With a controller and a seven segment display, showing the time is not a so special feature, but when this clock can listen to the user and do what they want, that’s what worth highlighting a “Time Machine”. Analysing human voice and take action based on that is not so simple. That’s why using a
Time Machine – A Smart Clock That Does What You Say Using Alexa Voice Service Read More »
It has been about one year since the announcement of ESP32 SoC and the beginning of its beta testing for some developers. Last Month we covered the release of ESP-WROOM-32 module datasheet, which promised that “New SDK features, tutorials and example applications will be released over the next few months.”. The ESP-32 datasheet was released
Public Release of ESP32 SoC The Big Brother Of ESP8266 Read More »
Welcome to the first post of the “Exploring Eagle CAD ULPs” series. Every week we will publish a new post about one useful ULPs in Eagle CAD. “ULP” User Language Program is a plain text file which is written in a C-like syntax and can be used to access the EAGLE data structures and to
Exploring Eagle CAD ULPs #1 – PickUp.ULP Select Components Both in Schematic And Layout Read More »
SunDuino is a Single Board Computer with integrated Battery Charger, Voltage Regulators, I2C, Digital and Analog IO. It’s main benefit is that it can run a compiled C app for years on a small battery or forever using built in solar charger. A background RTOS provides SLEEP functions for reducing operating current to 100ua while providing 125ms periodic wakeups.
SunDuino – Run your C application using solar power Read More »
Texas Instruments “TI” recently announced FemtoFET series. There are N-channel MOSFETS like CSD15380F3 and P-channel MOSFETS like CSD25480F3 and CSD23280F3 in this series. These transistors are SMD (Surface Mount Devices) available in a very small package, the land grid array (LGA) package. To explore this family we will highlight the FemotoFET MOSFET CSD15380F3. It has
FemtoFET – 20V 500mA 0.6×0.7mm MOSFET From TI Read More »
David Jones made a tutorial on the fundamentals of zener diodes over his EEVblog youtube channel. David started the tutorial comparing between zener and regular diode. Both have the same characteristics and same I-V chart, but zener is designed to work in the negative voltage region.”In theory” the regular diode can work in the negative
Zener Diodes In Theory and Practice Read More »
Magnetic field sensor project using AD22151 IC from Analog Devices, The AD22151 is linear magnetic field transducer. The sensor output is a voltage proportional to a magnetic field applied perpendicularly to the package top surface. The sensor combines integrated bulk Hall cell technology and instrument technology to minimize temperature related drifts associated with silicon Hall
Magnetic field sensor using AD22151 Read More »
