These very small little 6mm LEDs arrived today and…. did I tell you that they’re very small? Handling them might be a problem if the pair of tweezers suddenly slips. The reason I chose them is because I wanted the lights to fill over a long rectangle. Plus, the lights needs to change colours too. And so, instead of soldering two 0805 LEDs, I want to risk on something new.
And they are very small.
The industry uses this LED for the purpose of back-lighting LCD screens and that is why we call them, side-viewing. I, on the other hand, have too much time during midnight, have designed the LEDs soldered upright.
WHY RGB?
RGB LEDs have been around since the time they were around. I have some issues with them because I can see their component LEDs even if they created the mixed colours. But that is for another story since no one brought me any Amarula drinks. A RGB LED can create various colours by mixing its three Red, Green, Blue component LED. You can try with some resistors but this is only to dim the voltage where you might get the colour you want, but will make the LED very dim. The best solution is to use PWM (Here is a good explanation I got via Google).
The PWM needs its own circuit and it is now very common to involve microcontrollers instead. For this Project, I do not want to do that and that is why I opted for ‘ready’ coloured LEDs such as orange, yellows, and so on. But for now, the colours I need are greens and blues with a wide light spread.
THE DESTINED LOCATION OF THE 020 LED
The 020 RGB LED will be going to the third PCB of the TR-595E, which is called the Lower Interface. This LED is designed to be used to light the reflective background of a LCD screen. A long time ago, I have had success with tombstoning the 0805s and therefore (I hope) it will work with the 020 as well. The design of the PCB is going to take longer than anticipated because there are some components (on the way)
Anyway, the red LED component is on the left.
