I have a very basic circuit question.
I bought these LED bracelets with the intent of modifying them. The idea is to make it so the LED brightness would be dimmer than normal when switched on (by adding a resistor in series.) Then I would have a vibration sensor that would make the LEDs go back to normal brightness when it senses motion.
I thought that if I added the sensor in parallel with the resistor, it would bypass the resistor, since the circuit would choose the path of least resistance.
I got the resistor to dim it the way I want, but the sensor in parallel doesn't seem to do anything. I tested the sensor separately so I know it works. What's the right way to do this?
Additionally, in testing the sensor separately, I observed that the LED only stays on for a fraction of a second. What can I do to make the lights stay on longer, like at least half a second?
The bracelet has another switch mode to make the lights slow fade on and off. If there was a way for it to toggle a single slow fade on/off on motion, that would be a desired behavior too, but I wouldn't know how to do that.
The board has a 6V battery, 2 LEDs, 2 resistors, 1 capacitor, and a 6pin chip, though I don't know in what order they are.
This is the vibration sensor I got. It has a spring in a cylinder with 2 pins. uxcell SW-58010P High Sensitivity Spring Electronic Vibration Sensor Switch Straight Pin 10Pcs