Test 1: Sponge, LED, two pieces of conductive fabric

In this test, the LED just lights on and off according to the palm pressor.

Test 2: Sponge, LED, two pieces of conductive fabric, a piece of velostat

As you can see, in this one, the LED has adjusting brightness by the palm pressor because of a piece of velostat. The velostat should be placed between the two small conductive fabrics.