Arduino Radar Tutorial: Fading an LED With My Breath
https://www.electronics-lab.com/arduino-radar-tutorial-fading-an-led-with-my-breath/
by build-electronic-circuits.com: I built this Arduino radar project, where I control the brightness of an LED with my breath. In this tutorial, I will show you exactly how to do it. It was an experiment to get the XeThru radar to work with Arduino. I plan to expand on this later, and build more useful applications. […]
2.5A BIPOLAR STEPPER MOTOR DRIVER LV8772E
https://www.electronics-lab.com/2-5a-bipolar-stepper-motor-driver-lv8772e/
Tiny Board has been designed around LV8772 IC from On-Semi. This driver is capable of micro-step drive and supports 4W 1-2 phase excitation. It has Low on Resistance with motor current selectable in four steps. The board is equipped with unusual condition warning LED and input Pulse Monitor LED. It is most suitable for the […]
16-Bit I2C-Bus LED Dimmer
https://www.electronics-lab.com/16-bit-i2c-bus-led-dimmer/
This project is devised for LED dimming using NXP Semiconductors’ PCA9532 16-Bit I2C-Bus LED dimmer. A lot of solid-state lighting applications require control over the emitted intensity of light for both functional and aesthetic requirements. Some of these applications also require a full dimming capability from fully ON to fully OFF. LED dimming potentially improves […]
Energy Wristband monitors energy usage on home
https://www.electronics-lab.com/energy-wristband-monitors-energy-usage-on-home/
by Matt Venn: A wristband that tells you energy changes in your home. It connects via a Raspberry Pi computer to a base station like a ‘current cost’ or similar. When a change in energy usage occurs, the wristband vibrates and a small LED bargraph shows your current usage from 1 to 4. Energy Wristband monitors […]
A low-cost 0.5A 33V LED driver module with 90+% efficiency
https://www.electronics-lab.com/a-low-cost-0-5a-33v-led-driver-module-with-90-efficiency/
by Valentin Kulikov @ edn.com This article describes simple constant current driver module with fast PWM input that can be used for driving medium and high power LEDs. The module uses an integrated constant-current output, DC-DC buck converter with output current configurable from 0.1 to 0.5A. This article outlines the schematic, design guidelines, operation, and performance […]