![ESP8266 DIY Wifi Smoke Alarm Notifier ESP8266 DIY Wifi Smoke Alarm Notifier](https://www.electronics-lab.com/wp-content/uploads/2015/11/22114918954_23cf9717c9_k1-750x429.jpg)
ESP8266 DIY Wifi Smoke Alarm Notifier
simpleiothings.com has build a Wifi connected smoke alarm using ESP8266 module: This tutorial will teach you how to build a Wifi Smoke Alarm Notifier for about $10 dollars. You won’t have to code anything, and you won’t have to solder or buy expensive electronics equipment. Any...
Continue Reading![Single Regulator contains buck and boost controllers Single Regulator contains buck and boost controllers](https://www.electronics-lab.com/wp-content/uploads/2015/11/7812-e1447746276790.jpg)
Single Regulator contains buck and boost controllers
Linear Technology Corporation introduces the LTC7812, a dual output (boost + buck), low quiescent current synchronous DC/DC controller. When cascaded, its independent step-up (boost) and step-down (buck) controllers regulate the output voltage from an input voltage that can be above,...
Continue Reading![Bluetooth enabled Door locker using Arduino Bluetooth enabled Door locker using Arduino](https://www.electronics-lab.com/wp-content/uploads/2015/11/arduino-locker-e1447676355310.jpg)
Bluetooth enabled Door locker using Arduino
Frank Donald @ gadgetronicx.com has build a bluetooth controlled door locker using Arduino. Source code included: DIY Arduino based lockers can be found plenty in the internet where keypad was used to feed lock input. But this Bluetooth enabled Door locker uses Bluetooth as a medium...
Continue Reading![Component Tester FISH 8840 Review Component Tester FISH 8840 Review](https://www.electronics-lab.com/wp-content/uploads/2015/11/Component_Tester_FISH8840_9494-1024x768.jpg)
Component Tester FISH 8840 Review
Alan Parekh @ hackedgadgets.com has a review of a cheap component tested he found on ebay. This device can test bipolar transistors, MOSFET, diodes, thyristors, resistors and capacitors. He writes: This is an inexpensive component tester called the FISH 8840 which you can find from...
Continue Reading![ATtiny 85 EMF detector ATtiny 85 EMF detector](https://www.electronics-lab.com/wp-content/uploads/2015/11/F9EA26GIGZIZHK0.MEDIUM.jpg)
ATtiny 85 EMF detector
arduinomaster @ instructables.com has build an EMF detector based on ATtiny85 mcu able to detect signals from 0-999Hz. He writes: An EMF meter can measure AC electromagnetic fields, which are usually emitted from manmade sources such as electrical wiring, while gaussmeters or...
Continue Reading![Raspberry PI and DHT22 Temperature and Humidity logger Raspberry PI and DHT22 Temperature and Humidity logger](https://www.electronics-lab.com/wp-content/uploads/2015/11/FJ6I40GIH0U2YH6.MEDIUM.jpg)
Raspberry PI and DHT22 Temperature and Humidity logger
"jjpfin" @ instructables.com build a Raspberry Pi based temperature and humidity datalogger using DHT22 sensor. Data is stored on mySQL server and can be viewed on browser. This is an Raspberry Pi based temperature and humidity logger that uses 2 (works also with 1) Adafruit DHT22...
Continue Reading![OpenCVMeter – Rediscover Your Capacitors OpenCVMeter – Rediscover Your Capacitors](https://www.electronics-lab.com/wp-content/uploads/2015/11/OpenCVMeter.png)
OpenCVMeter – Rediscover Your Capacitors
OpenCVMeter is an open source tool to measure capacitance and leakage current as a function of a capacitor's working voltage. When designing circuits, many hobbyists take capacitors for granted - but each type (ceramic multi-layer, aluminum electrolytic, tantalum, mica...) has its...
Continue Reading![Processing for Raspberry Pi Processing for Raspberry Pi](https://www.electronics-lab.com/wp-content/uploads/2015/11/processing-screen-shot-500x344.png)
Processing for Raspberry Pi
Matt Richardson announced that Processing programming language is now supported by Rasbberry Pi. He writes: I’m a long-time fan of Processing, a free open source programming language and development environment focused on teaching coding in the context of visual arts. It’s why...
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