Year: 2016
![Measure Stress Levels Using a Smartphone Measure Stress Levels Using a Smartphone](https://www.electronics-lab.com/wp-content/uploads/2016/03/device_measures_stress_levels_smartphones_medicalexpress.jpg)
Measure Stress Levels Using a Smartphone
Researchers have developed a smartphone device that measures the cortisol concentration in saliva in order to define your stress levels. The new test is done in under 10 minutes and there is no need to send a salvina sample on a lab. The cost for each measurement is less than 5$...
Continue Reading![A biometric sensor for wearables – LG Innotek A biometric sensor for wearables – LG Innotek](https://www.electronics-lab.com/wp-content/uploads/2016/03/2016021811237503.jpg)
A biometric sensor for wearables – LG Innotek
LG Innotek has released an ultra-thin optical biometric sensor module designed to be used in wearables and smartphones to measure health parameters such as heartbeat, stress indicators and blood oxygen saturation level. The new sensor is more accurate than it's predecessors...
Continue Reading![SolarBoost – Make Your Own USB Solar Mobile Charger SolarBoost – Make Your Own USB Solar Mobile Charger](https://www.electronics-lab.com/wp-content/uploads/2016/03/solar_charger.png)
SolarBoost – Make Your Own USB Solar Mobile Charger
SolarBoost is an open source smart interface that allows you to build your own powerful and portable solar charger for your phone and other mobile devices. It has two USB ports and can provide 5V @ 2A at each of them and is controlled by a 8-bit 32MHz Microchip PIC microcontroller. It...
Continue Reading![Ryet IKEA LED Bulb teardown Ryet IKEA LED Bulb teardown](https://www.electronics-lab.com/wp-content/uploads/2016/03/ryet-ikea-led-bulb-teardown-1024x576.jpg)
Ryet IKEA LED Bulb teardown
Here is a quick tear down of an IKEA 400 lm "Ryet" bulb. Cheapest bulb with full safety listing that I have ever seen. Selling for less than $2.00! Ryet IKEA LED Bulb teardown -...
Continue Reading![UP/DOWN counter with memory using PIC16F88 UP/DOWN counter with memory using PIC16F88](https://www.electronics-lab.com/wp-content/uploads/2016/03/counter39.jpg)
UP/DOWN counter with memory using PIC16F88
Here is an up-down counter based on PIC16F88 and 7-segment display. The counter is using SMD components and features a RS-232 interface. This is a simple digital counter with a serial rs-232 and a 7 segment display, i started this project to count items on some shelfs, but it can be...
Continue Reading![Choose the right step-up/down voltage regulator for portable applications Choose the right step-up/down voltage regulator for portable applications](https://www.electronics-lab.com/wp-content/uploads/2016/03/F3x600.jpg)
Choose the right step-up/down voltage regulator for portable applications
Reno Rossetti & Inyong Kim discuss about the power needs on portable devices and help us choose the right regulator. A popular power source for portable devices is a single lithium-ion cell with 4.2V at full charge and 2.8V at end of discharge. However, some functions within...
Continue Reading![LTC7813 – Low IQ, 60V Synchronous Boost+Buck Controller LTC7813 – Low IQ, 60V Synchronous Boost+Buck Controller](https://www.electronics-lab.com/wp-content/uploads/2016/03/7813-e1459408972173.jpg)
LTC7813 – Low IQ, 60V Synchronous Boost+Buck Controller
Linear Technology Corporation introduces the LTC7813, 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![Open-source microprocessor Open-source microprocessor](https://www.electronics-lab.com/wp-content/uploads/2016/03/2-opensourcemi-e1459408854669.jpg)
Open-source microprocessor
Fabio Bergamin @ phys.org writes about PULPino which is an open source processor to be used on wearables and IoT. In future, it will be easier and cheaper for developers at universities and SMEs to build wearable microelectronic devices and chips for the internet of things, thanks...
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