Andrew Cowan
Senior Member
Hi all.
I've been playing with an axe090 experimenters kit, and I've rigged up a simple RGB LED control program.
A potentiometer can be set, then pressing one of three PTM switches, labeled R, G, and B, transfers the potentiometer reading (0-255) to either the red, green, or blue element.
This all runs off a 28X.
However, the problem:
The LED is not particually bright. I have removed the protective resistors, as the duty cycle is always low, but this does not help. Looking into the LED, you see the red element, a blue element and a green element. You do not see a combination of the three. The LED is not really bright enough to project onto a surface - when you do, you always get the same colour (a slightly reddish white).
I assume the problem is that the LED is not diffused enough (it it diffused), or just not bright enough. Maybe I will try with seperate red, blue andgreen LEDs projecting onto one spot - this may help.
Any ideas?
A
I've been playing with an axe090 experimenters kit, and I've rigged up a simple RGB LED control program.
A potentiometer can be set, then pressing one of three PTM switches, labeled R, G, and B, transfers the potentiometer reading (0-255) to either the red, green, or blue element.
This all runs off a 28X.
However, the problem:
The LED is not particually bright. I have removed the protective resistors, as the duty cycle is always low, but this does not help. Looking into the LED, you see the red element, a blue element and a green element. You do not see a combination of the three. The LED is not really bright enough to project onto a surface - when you do, you always get the same colour (a slightly reddish white).
I assume the problem is that the LED is not diffused enough (it it diffused), or just not bright enough. Maybe I will try with seperate red, blue andgreen LEDs projecting onto one spot - this may help.
Any ideas?
A