Circuit implements photovoltaic-module simulator
https://www.electronics-lab.com/circuit-implements-photovoltaic-module-simulator/
José M Blanes and Ausiàs Garrigós writes: Electronics engineers often use photovoltaic-module simulators to test dc/dc-power converters, inverters, or MPPT (maximum-power-point-tracking)-control techniques. The use of these simulators lets you work in the laboratory with predefined photovoltaic conditions, thus avoiding the drawbacks of real photovoltaic modules. Various commercial simulators are available, but they are often expensive. […]
2.5A Bipolar Stepper Motor Driver using A3979
https://www.electronics-lab.com/2-5a-bipolar-stepper-motor-driver-using-a3979/
The tiny board designed using A3979 IC from ALLEGRO which is complete micro stepping driver with built in translator. The translator is the key to the easy implementation of the A3979. It allows the simple input of one pulse on the STEP pin to drive the motor one micro step, which can be either a […]
4 Channel Large Current Relay Board
https://www.electronics-lab.com/4-channel-large-current-relay-board/
4-Channel Relay Board is a simple and convenient way to interface 4 relays for switching application in your project. The project has large Relay which can switch current up to 20Amps. Specifications Input supply 12 VDC @ 360 mA Output four SPDT Relay Relay specification 20 A @ 230 VAC NC/30A NO Trigger level 2 […]
DIY Home Energy Meter
https://www.electronics-lab.com/diy-home-energy-meter/
A new tutorial by The DIY Life is for building a home energy meter that provides information about power consumption and cost estimates for the month. Using Arduino and some other components you can build your own energy meter that measure the supply current to your home through a CT (current transformer), current, power, maximum […]
Arduino Installing and Using Libraries
https://www.electronics-lab.com/arduino-installing-using-libraries/
runtimeprojects.com has a tutorial on how to install and use Arduino libraries. Libraries are an essential part in the Arduino world. They are what makes Arduino so easy to use. Libraries are written to encapsulate complex functions and expose them as simple function calls to the user. For example to switch a pixel on and […]
ESP8266 sending data to Google spreadsheets
https://www.electronics-lab.com/esp8266-sending-data-google-spreadsheets/
Although there are so many cloud IoT platforms (ThingSpeak, thinger.io, TESPA.io, Xively, … ) available in the market, each offering APIs and tools to allow the Arduino and ESP8266 users to directly upload their sensor readings online for real-time visualization and global access, Google Drive is still my favorite choice for posting sensor data online as […]
DIY Pixel Art Frame Using Raspberry Pi Zero
https://www.electronics-lab.com/diy-pixel-art-frame-using-raspberry-pi-zero/
Have you ever wanted to get an interesting art frame? That can display and flip photos, scroll text, show the weather or display social media notifications? Frederick Vandenbosch’s new tutorial is for building an art frame using 32×32 LED matrix and Raspberry Pi Zero. Electronics used in this project Raspberry Pi Zero 32×32 RGB LED […]
Temperature sensors accurate to -40°C
https://www.electronics-lab.com/temperature-sensors-accurate-40c/
by Denis Meyer @ elektormagazine.com: With a local (on chip) precision of ±1°C over a range of temperature from –40°C to +65°C, and a remote (up to 3 external sensors) precision of ±1°C extended up to +125°C, the MCP990X digital temperature sensor offers an economic and flexible solution for external of industrial environments. Temperature sensors […]
A health patch a day keeps the doctor away
https://www.electronics-lab.com/health-patch-day-keeps-doctor-away/
Belgian Imec and its subsidiary Holst Centre have developed a health patch which tracks physical and cardiac activity while monitoring bioelectrical impedance. The technology is up for licensing. by Jan Buiting @ elektormagazine.com The health industry has recognized the challenges and solutions, with analysts predicting that the value of the global mobile health market is […]
Ambient light sensor for heart rate sensing in wearables
https://www.electronics-lab.com/ambient-light-sensor-heart-rate-sensing-wearables/
Everlight (New Taipei City, Taiwan) has introduced an ambient light sensor that operates at 550nm with a very low signal calculation failure rate and a high current efficiency. An anticipated application for this device is heart rate signal detection in wearable electronics for the health and fitness sector. by Graham Prophet @ edn-europe.com: Based on […]