Nowadays probably all of us have a spare cell phone charger lying idle in our cupboards or table drawers……so wouldn’t it be a great idea if we could employ it like a super bright 1 watt LED driver and illuminate our room with white cool moon light. Circuit Concept As we all know that a 1 watt […]
LEDs
How to Understand and Use white LEDs – Datasheet
If you are wondering how to correctly use white LEDs in circuits so that they can be illuminated safely without damaging, then this post might help you to evaluate the same. Introduction White LEDs are the future lighting solutions for our cities and homes. They will be easily replacing the traditional CFL and other flurescent […]
Blinking 3 LEDs (R,G,B) Sequentially Using Arduino Circuit
In this post I have explained how to run or blink three LEDs in sequence using Arduino. The post was written and submitted by: Jack Franko PROGRAM/* make RGB LEDs to blink in series one by one at intervalof 1000MS */ int R = 12;int G = 11;int B = 10;void setup(){ pinMode(R,OUTPUT); pinMode(G,OUTPUT); pinMode(B,OUTPUT);}void […]
Using Aluminum Strip Heatsink for Hi-watt LEDs instead of PCB
Whenever we come across using 1 watt LEDs or other higher watt LEDs, we are always advised to use high grade aluminum based heatsinks for safeguarding the LEDs from heat, and for acquiring optimal performance from them. Double Side PCB can be Costly However as we all know such PCBs are highly costly and could […]
Illuminating 24 White LEDs from two 9 Volt Cells
In this post I have explained about a special circuit which can illuminate 24 high bright white LEDs from a single 9V PP3 battery, let’s unravel the secret behind this amazing circuit. Nine volt cells as the rating suggest, provides 9 volt output, but what about the current? A 9 volt PP3 battery will not […]
How to Connect 5mm LEDs to a 3.7V Li-Ion Cell
In this article I have explained regarding how to connect and illuminate a few 5mm LEDs using a 3.7V Li-Ion cell, normally used in cell phones. I keep receiving requests from the readers who seem confused with the connection details of 5mm LEds with a 3.7V Li-ion cell. The requests inspired me to write this […]