I2C Programmable PWMs to Control a DC Motor and LED
https://www.electronics-lab.com/project/i2c-programmable-pwms-to-control-a-dc-motor-and-led/
This project features an I²C-controlled DS1050 PWM generator paired with a 17A MOSFET to drive LEDs and resistive loads, with the flexibility to handle high-current or inductive loads provided proper heat management and flyback protection are utilized.
Dimmable Linear LED Controller
https://www.electronics-lab.com/project/dimmable-linear-led-controller/
This 48V, 200mA dimmable linear LED driver is a highly reliable solution for various LED applications. The project features the BCR602 chip, which supports LED engines, LED modules, and LED strips. The driver utilizes a MOSFET (Q1) and the BCR602 chip to provide constant current control, and it can also be equipped with a Bipolar […]
434Mhz Wireless Receiver – LED Dimmer – Arduino Compatible
https://www.electronics-lab.com/project/434mhz-wireless-receiver-led-dimmer-arduino-compatible/
The Wireless Receiver Dimmer is a complementary component to the Wireless Potentiometer Transmitter, designed to receive and process data transmitted from the transmitter. This project can be used to drive the LED, Heater or brushed dc motor, and supports inductive or resistive loads. A gate driver chip MCP1416 is provided to drive the gate of […]
434MHz Wireless LED Dimmer Transmitter – Arduino Compatible
https://www.electronics-lab.com/project/434mhz-wireless-led-dimmer-transmitter-arduino-compatible/
The project presented here is a 434MHz Wireless Transmitter for LED Dimmer, built around the ATMEGA328 Arduino microcontroller. The potentiometer is connected to the ADC A1 analog pin of the ATMEGA328 chip. The microcontroller reads the analog value of the potentiometer and transmits the data through the 434MHz RF module. This data is received at […]
Fuel Level Monitor with 15 Segments Bar-Graph Display
https://www.electronics-lab.com/project/fuel-level-monitor-with-15-segments-bar-graph-display/
This Fuel level Monitor allows users to measure the fuel level using a resistive float sensor in the fuel tank. The project measures the fuel level and displays it on a 15-segment bar-graph display. The project is Arduino-compatible and consists of ATMEGA328 controller. The resistive sensor with a divider resistor is connected to Analog pin […]
Linear Current Source LED Driver with Dimmer Input
https://www.electronics-lab.com/project/linear-current-source-led-driver-with-dimmer-input/
The compact module shown here is a linear current source for LED driver and it’s ideal for automotive LED lighting applications. The project is built using a TLD1211 chip from Infineon. The board provides supply to LEDs under the severe condition of automotive applications resulting in constant brightness and extended LED lifetime. The project is […]
21-Watt Universal AC LED Driver with Accurate Average-Mode Constant Current Control
https://www.electronics-lab.com/project/21-watt-universal-ac-led-driver-with-accurate-average-mode-constant-current-control/
The project presented here is an average current mode control LED driver operating in a constant off-time mode. The project consists of a bridge rectifier followed by a buck converter operating with a fixed off-time of 20µs. The circuit provides accuracy, and line and load regulation of the LED current. The output LED current accuracy […]
Interactive LED Coffee Table – Arduino Compatible
https://www.electronics-lab.com/project/interactive-led-coffee-table-arduino-compatible/
The project demonstrated here is an IR proximity sensor-based LED light, mainly designed for interactive coffee tables, but also can be used as single interactive light. The table can be made with multiple of these PCBs. Multiple tiles can be used as shown in the image below, each tile will light up when an object […]
Closed Loop Constant LED Light Source Using OPT101 Light Sensor and OPA569 Power OPAMP
https://www.electronics-lab.com/project/closed-loop-constant-led-light-source-using-opt101-light-sensor-and-opa569-power-opamp/
The project presented here is a precision closed-loop LED driver that provides very accurate constant light and can be used for photography, scientific research, and other applications that require an accurate light source. The project consists of light sensor OPT101 and OPA569 power OPAMP. OPT101 converts light into voltage, and OPA569 is used as an […]
LED Dimmer for Super High Brightness LEDs
https://www.electronics-lab.com/project/led-dimmer-for-super-high-brightness-leds/
This is a high-efficiency and reliability DC/DC converter with a dimming feature for super high brightness LEDs. The project is built using L6902D chip. L6902 is a complete and simple step-down switching regulator with adjustable current limit. The current control loop with external sense resistors R6, R7, and R8 are able to work in constant […]