Turn On an LED During Day and Turn Off in Night Using LDR and BC547 « Funny Electronics
8 LEDs Flasher Circuit Using BC547 Transistor | Circuit Ideas I Electronic DIY Projects I Robotics
mosfet - FET-based H-Bridge for bi-color LED - Electrical Engineering Stack Exchange
One Channel Relay Driver Using BC547 Transistor | Circuit Ideas I Electronic DIY Projects I Robotics
Driver for 10 Watt Led - LEDs and Multiplexing - Arduino Forum
arduino - BJT Constant Current LED Driver - Inverted behavior? - Electrical Engineering Stack Exchange
LED Meteor Shower, Rain Tube Circuit - Homemade Circuit Projects
transistors - High side or low side LED driver with NPN BJT? Which is better? - Electrical Engineering Stack Exchange
Led Flasher with a BC547 NPN transistor under LED Circuits -6840- : Next.gr
NOT Gate Realization using BC 547 and Arduino Mega « Funny Electronics
LED Dimmer Circuit with BC547 Transistor - YouTube
Circuit Diagram - Easy project : 28 LED flasher circuit using single driver transistor BC547 some experiments can be dangerous for that you don't risk and hurt your self be safe. | Facebook
BC547 Transistor : Pin Configuration, Circuit and Its Applications
LED Constant Current Circuit
Nice Effect LED Chaser Circuit Using BC547 : 11 Steps - Instructables
3V LED Dimmer Circuit with BC547 Transistor - CircuitBest
An improved offline driver lights an LED string - EDN
Unusual LED Flasher – Mohan's electronics blog
TRANSISTOR BC547 AS A SWITCH & AMPLIFER » PIJA Education