Battery Powered Frequency Meter (0 to 20kHz)
https://www.electronics-lab.com/battery-powered-frequency-meter-0-to-20khz/
The circuit is a simple digital frequency meter that is made of a frequency-to-voltage converter and an analog-to-digital display converter that can be operatedfrom a single 9-volt battery. The TC7126 ADC generates the voltage required by the TC9400 FVC with internal regulators. The TC7126 is designed to directly drive a 3-1/2 digit, non-multiplexed LCD display […]
Microchip to Buy Atmel for Nearly $3.6 Billion
https://www.electronics-lab.com/microchip-to-buy-atmel-for-nearly-3-6-billion/
Microchip Technology to Buy Atmel for Nearly $3.6 Billion @ The New York Times. Microchip Technology agreed to acquire a fellow chipmaker, the Atmel Corporation, for about $3.6 billion, part of a wave of mergers and acquisitions within the semiconductor industry. Chip makers have been combining to cut costs and build scale for their […]
5V @ 2A Step Down Converter using TPS54202
https://www.electronics-lab.com/project/5v-2a-step-converter-using-tps54202/
The circuit shown here is a step down converter which can convert an input voltage varying from 8V to 28V to 5V. The circuit is based on TPS54202, which is a 2A synchronous buck converter. This IC has several features such as over-voltage protection and peak current mode control. Features Input(V): 8V DC to 28V […]
Arduino Distance Meter
https://www.electronics-lab.com/arduino-distance-meter/
Paoson Woodwork @ instructables.com has build an Arduino Based Distance meter using SR-04 Ultrasonic sensors and an LCD display: This a project I’ve been working for some time now. It is a device that shows in a little LCD display the distance to the nearest object it can find, usually the floor, the ceilling and two […]
Samsung presents a bio-processor that wishes you well
https://www.electronics-lab.com/samsung-presents-a-bio-processor-that-wishes-you-well/
by Denis Meyer @ elektormagazine.com writes about the new Samsung bio-processor: Samsung Electronics Co. announced recently the production in quantity of their versatile biometric IC with which the Korean giant is responding to the new trend towards quantifiable health. The Bio‑Processor was conceived to enable rapid development of innovative portable systems for the daily monitoring […]
Plastic fingerprint sensor also detects underlining veins
https://www.electronics-lab.com/plastic-fingerprint-sensor-also-detects-underlining-veins/
FlexEnable, the leader in the development and industrialisation of flexible organic electronics, and ISORG, the pioneer in organic photodetectors and large area image sensors in printed electronics, have revealed the world’s first large area flexible fingerprint sensor on plastic designed for biometric applications. With an 8.6 cm x 8.6 cm active area, 84µm pitch (78µm […]
ESP8266 mains energy monitor
https://www.electronics-lab.com/esp8266-mains-energy-monitor/
Brian Dorey has designed a mains energy monitor based on ESP8266 that have sensors for the mains current, electric meter and gas meter. As the new solar logger did not have this functionality we decided to design a new data-logger that would measure not only the mains current usage but also keep track of the […]
Power ON Delay Switch
https://www.electronics-lab.com/power-on-delay-switch/
Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED indicator Screw terminal connector for easy relay output connection Four mounting holes of […]
Power ON Delay Switch
https://www.electronics-lab.com/project/power-on-delay-switch/
Power-ON Delay Switch which can be used in all applications requiring a delay during power-on from 1 to 60 seconds. Specifications Supply input 5 VDC Relay output SPDT relay Relay specification 5 A @ 250 VAC Preset adjustable range function Power-On LED indicator Screw terminal connector for easy relay output connection Four mounting holes of […]
ChameleonMini – A Versatile NFC Card Emulator
https://www.electronics-lab.com/chameleonmini-a-versatile-nfc-card-emulator/
ChameleonMini is a programmable tool for NFC Cards analysis and emulation. It helps you to emulate and clone contactless cards, read RFID tags and sniff RF data. The credit-card shaped ChameleonMini is a versatile tool for practical NFC and RFID security analysis, compliance and penetration tests, and various end-user applications. The freely programmable platform can […]