1mm height SMD LED can be placed upside down.
https://www.electronics-lab.com/1mm-height-smd-led-can-placed-upside/
Kingbright KPTR series, suitable for reverse mounting, makes it possible to achieve that the LED is hidden in the PCB. Naturally, manufacturing LED with a zero height is most likely unreal at the current physics status and 3D experience of the world. Nevertheless, it´s still possible to reach the goal that the LED wouldn’t stick […]
10 x 1W White LED Shield For Arduino Uno
https://www.electronics-lab.com/10-x-1w-white-led-shield-arduino-uno/
This project includes 10 LEDs of 1W each, and provides high intensity lighting that can be used in various applications. The board is made in Arduino shield form and can be used with Arduino Uno or Mega. Each LED can be controlled individually connected to digital pins D2-D11 of Arduino. Circuit requires 9-12V supply, it […]
8 RGB LED Driver Shield for Arduino Nano with Optical Defuse Sensor
https://www.electronics-lab.com/8-rgb-led-driver-shield-arduino-nano-optical-defuse-sensor/
The board consists of 8 x RGB LEDs 1W, BJT transistors on each LED, series resistor across the LED for current limiting, a hole to mount 18mm optical sensor which may be a defuse sensor for object detection with Arduino nano. The board can be programed to create multiple RGB LED related applications, like interactive […]
Programmable light controller with ATmega8 and DS1307
https://www.electronics-lab.com/programmable-light-controller-atmega8-ds1307/
Dilshan Jayakody designed and build a programmable light controller that is able to turn ON and OFF a LED at predetermined time of each day. All the design files and source code related to this project are available at https://github.com/dilshan/programmable-light. The complete documentation of this project is also available at Github Wiki. To meet the […]
Infineon Technologies XDPL8221 Digital PFC+Flyback Controller
https://www.electronics-lab.com/infineon-technologies-xdpl8221-digital-pfcflyback-controller/
The emerging trend of smart lighting and Internet of Things, requires a new generation of LED drivers. Infineon Technologies AG introduces the new member of its XDP LED series, the XDPL8221 for cost-effective dual-stage drivers with advanced features. This device combines a quasi-resonant PFC and a quasi-resonant flyback controller with primary side regulation together with […]
Twelve PWM outputs from an ATtiny85
https://www.electronics-lab.com/twelve-pwm-outputs-attiny85/
This project describes how to get 12 analogue PWM outputs from an ATtiny85, so you can drive 12 LEDs with individual control over each LED’s brightness. David Johnson-Davies writes: Each LED can be set to a brightness between 0 (off) and 63 (fully on). The demonstration program shows a rotating wave of light that moves […]
5W High Power LED Driver with PIC12F683
https://www.electronics-lab.com/5w-high-power-led-driver/
The project described here is small 5W LED driver, that can be used in variety of applications by changing the mcu code. The example code provided is a simple digital toggle switch using two tactile switches. One switch is used for power ON and the other for OFF. The on board small trimmer potentiometer helps […]
New Vishay Intertechnology Mid-Power Ultraviolet Emitting Diode With Quartz Window
https://www.electronics-lab.com/new-vishay-intertechnology-mid-power-ultraviolet-emitting-diode-quartz-window/
Ceramic Device Features Radiant Power to 18 mW in Compact 3.5 mm by 3.5 mm by 1.2 mm SMD Package Vishay Intertechnology, Inc introduced a ceramic mid-power ultraviolet (UVC) emitting diode for sterilization, sanitation, and purification applications. Featuring a quartz window, the Vishay Semiconductors VLMU35CM..-280-120 delivers an extremely long lifetime in a compact 3.5 mm […]
ATtiny10 Thermometer using DS18B20
https://www.electronics-lab.com/attiny10-thermometer-using-ds18b20/
This is a small battery-powered thermometer that displays the temperature as a series of red and green flashes on an LED. by David Johnson-Davies: The thermometer consists of an ATtiny10, a DS18B20 1-wire temperature sensor, and a bi-colour LED. To avoid the need for a digital display, and minimise current consumption, the thermometer pulses the […]
Custom UV LEDs and modules in the 320 to 233nm band
https://www.electronics-lab.com/custom-uv-leds-modules-320-233nm-band/
The FBH and Technische Universitaet Berlin (TU Berlin) spin-off from Germany develops and manufactures LEDs emitting in the UVB (280 nm – 320 nm) and the UVC (230 nm – 280 nm) spectral regions . Due to their customizable wavelengths , low operation voltages, ability to be rapidly switched and dimmed along with their robustness […]