I just want to get some audio feedback on my projects. Ideally, I want to hook up power wires and my PWM signal pin on Arduino and then be done with it.
Unfortunately, there are 1,000 types and styles of piezo buzzers with 50 different tutorials that get me involved in the science of designing a driver from scratch, and make me go on another 3-week shipping scavenger hunt to acquire more components I don't have.
In the past, I've just hooked up a little speaker to a l386 (?) amplifier module and thought I was done, until it got complicated trying to filter out engine noise from the power lines.
Has anyone seen an EASY BUZZER module I can drive variable PWM frequency, I can simply hook up - that is LOUD enough to possibly hear over some moderate ambient noise?
Yes, that looks like it... But I do not see a decibel rating. At 25ma current, it might be as loud as the ones I've tried that need close to absolute silence. I looked it up on eBay, found them (2) for $1.55, so I guess in 3 weeks when I finally get them I suppose I'll find out.
Well, I have a remote-control battery lawnmower. I would like to be able to hear beeps from the ground-station I made, over-top of the noise of the battery blade mower. That might be too much to ask from a simple piezo buzzer. But I know they use buzzers on the quad-copters, and those thing's are obnoxiously loud. I'm about to dismantle one of these smoke-alarms to see what's going on in that.
I have a box of little piezo buzzers I collected but they all say something wierd like 5-24v or 12-30v. I hook them up to +5v and, if I am lucky in a room completely silent, I might hear a little noise. So then I was expecting to hook up a power wire to something and the signal wire to pwm pin, and found more confusing buzzers with 4 and 5 wires.
Well, no I haven't considered strobe. I'm in the day, with the LASER-BEAM sun so bright. I struggle to read LCD, LED, or anything else with lights. I like how these circular WS2812 lights look great INSIDE the house. They can be used in any color and indicate a whole pattern of stuff, but haven't tried outside during the day or know if I can see it.
Are you talking about a NEON strobe, like the ones found on construction equipment ?
Oh, yea - I remember wiring those up in high school electronics class. Does that come in a module that uses a few wires? I probably might go blind trying to look at it to read the # of flashes for my error codes.
Super-bright LEDs make good strobes. Aircraft strobe lights are intended to be visible at distances of nautical miles and they use just a few LEDs in a cluster. Up close (like across your garden) they will be visible in all lighting conditions.
