I seek help in creating a circuit powered by a 3v battery to make an intermittent/randomized buzz and blinking led light.
I still think electricity is magical and mysterious, but I do know how to connect the battery, led light, and vibrator with a sauder iron. What I don’t know is what size capacitor and resistor to use.
Basically, I want to create a micro-Christmas light that vibrates and blinks.
Second, should the circuit be in series or parallel?
External components for the LED will depend on which particular one you have your eye on. The battery might not be enough to drive the LED by itself. It doesn’t seem like you’ll need any capacitors.
However, connecting a battery to an LED won’t blink it and the motor won’t turn on&off at random.
Thank you for the reply… my plan is to encase the circuit within solid epoxy or marine-grade silicone. This would then be used to submerge in 1,000 of salt water. It would pretty much be a single-use device to attach to fishing line and attract deepwater fish.
The self-contained device schematic is to include a single 3v battery, a single light diode, single coin-shaped vibrator (like you suggested) and the correct combination of a resistor/capacitor to make it blink and pulse.
I suspect the battery would be enough to power a single diode light (https://www.sparkfun.com/products/8861) to connect it to a 3v lithium battery. Would a resistor cause the light to blink? Or a resistor/capacitor in parallel?
You can not blink a led with just a resistor and capacitor.
At a minimum you would need multiple resistors, capacitors and transistors to make this work but that sounds like more work than you want to put into a throwaway device.
You might google “555 timer circuits” for something that will work for you, it would be the simplest way to accomplish your goal.