Touch Sensitive LED switch

Projects Programming
1

Hi,

I am trying to make a touch sensitive switch that will allow a light to be turned on/off and go through two light intensities through touching a copper strip.

As you touch the copper strip I would imagine the difference in resistance can be picked up.

So if resistance is equal too or greater than 'x' the LEDs will turn on, if touched again it will change to a higher intensity, then off when touched for a third time.

To achieve the 2 light intensities I have heard PWM can be used, however I am using LED strips that cannot be dimmed through PWM. I am thinking I can simply cut the strip into 5 smaller LED strips and the lower intensity setting is only 2 of the 5, and high intensity being all 5.

Does anyone have any suggestions?

Cheers

2

PaulVooght:
To achieve the 2 light intensities I have heard PWM can be used, however I am using LED strips that cannot be dimmed through PWM.
...
Does anyone have any suggestions?

Before cutting your strips apart, link some more documentation about the LED strips. Are you sure the cannot be dimmed (which is basically just turning them an and off quickly) at all or can those LED not be dimmed individually?

Korman