Hi All,

I'm trying a different approach, on how to use just the top (sensor) part of the livolo touch switch, but at the moment, i'm stuck at the PIC16f690 microcontroller functions in order to power up the LED.

I'm using a Livolo VL-C601-2 model and based on the wires on the top part, i tried to make a diagram to batter understand the schematics. (Please note that i'm missing some wires and that i have not drawn all the wires from all the pins as i could not see all of them. If something is wrong, please let me know.)

What i don't understand from the diagram below, is how does the PIC16F690 controls the two LEDs (red and blue) using only the RB4 (13) pin.

From the datasheet link here i can see that the Pin 13 (RB4) has: RB4/AN10/SDI/SDA and supports IOC

Can someone please explain to a noob in electronics how does this work and how does the pic switches from one LED to the other ?