2uA Ultra low Power Motion Sensor that Plays mp3 Files and Sends Notifications - ESP32 (trigBoard)
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- Опубликовано: 28 сен 2024
- This was a quick trigBoard project inspired by a fox my brother discovered on his security camera sniffing around the chicken coop. Using the ESP32 based trigBoard along with a high quality Panasonic sensor, we have a ~2uA system!
Project page is here - everything you need: trigboard-docs...
Tindie link to trigBoard: www.tindie.com...
Thanks to all the Patrons for dropping a few bucks in the tip jar to help make these videos happen!
/ kdarrah
Twitter: / kdcircuits
For inquiries or design services:
www.kdcircuits...
Almost two years ago to the day the trigboard v7 video appeared on my feed and started me off on the whole smart home/IOT/sensors/HomeAssistant rabbit hole. I've learnt a ton from you and other YTers. I rely on Pushover daily now (you should get a commission). Just wanted to say thank you for making the house (and me) smarter!
Awesome as always Kevin!! Such a killer sensor! I love it when a whole projects comes together, you do some awesome documentation and people should appreciate that!
What a great idea! I wonder if I can use this to keep the deer out of my vegetable garden this summer. I intend to find out. Thanks. Kevin!
Nice project, I would parallel two pouch batteries or 18650's (if not 26650) then also add a couple of small solar panels to top up the batteries during the day.
yea I may test this out as well - we're gonna run it for a few weeks to see how well it works, then give it some "upgrades"
A lot of wonderful information in such a short video, Great Job!
Awesome project, your ideas and concepts are fantastic.
The Amazon page you show for the audio amp says you bought that device three times. You also made a BIG deal about adjusting the DC boost converter BEFORE hooking the amp to it. Coincidence? 😀
I'm not saying anything ;)
I'm going to put that with the same barking and growling sound inside my mailbox.
The push notification on the phone can play the AOL "You've got mail!"
Really what I want is a push notification to my Amazon Alexas....
My dad did a low tech version when someone was stealing stuff from his show. A car horn, a car battery, and some fish line across a path, and a simple pull out the insulator and activate a switch. Sure enough, at night it went off, we raced down there, and found a big heavy car lift jack dropped where the fish line was lol. Trust me, plenty loud enough and did not stop blaring until you deactivated it. Probably gave the guy a heart attack and tore him self up running through the briars to escape...
"You've got a fox", lol
Nice work Kevin 👍
We use these Panasonic papir sensors in our commercial products. They are really good parts, never had an issue, asides from the price (we use 4 for each product, ouch). You need an in-line resistor to limit how much current is pulled from their output, otherwise they can randomly reset and false trigger. The current limit is in their datasheet, I forget what value we use.
cool thanks - I'll check that out.
seems like you should have added a gnd pin to the sensor connector
Hi Kevin
Did you have a look at the Da16200?
I feel like I might be missing something in your code. It appears that the PIR sensor is always waking the device and then you are checking the time to see if it should play the sound. Wouldn't it be better for the battery to disable the PIR sensor for that time window and keep the ESP asleep? If the PIR is constantly triggering because of activity that seems like a waste of energy.
very excellent
after you disconnect the battery, do you have to go back into the configurator to hit the set button to set the clock again?
yep, that's one down side...
@@Kevindarrah understand. Would be useful to have the option to set a specific ntp server address (so it can be local if desired) and then have a checkbox to sync time on initial bootup. You could also have an option to resync at some interval like weekly or something
how do you get 2uA while sleeping on ESP32? As per Espressif doc the minimum current with hibernation (that is deeper than deep sleep) it consumes 5uA and 10uA during deep sleep
check out the trigBoard docs page for the secret sauce - the board kills power to the ESP32 while keeping power to the ultra low power wake circuitry.
@@Kevindarrah so you mean the ESP32 is cut off completely ;-) got it! thank you for your marvelous projects! out of my budget probably but bunch of great ideas
Geat idea
let us know how it worked out for him.
Do you have any projects that can trigger low power arduino atmega328 using interrupt via low power infrared sensor for short distance motion like may be 1/2-1 meter?
I need this...weaponized against my noisy neighbor. Where do I send my money?
I am using the same family of PIR sensors on a project I am working on.
Cool project, although I'd put the speaker outside the box for louder sound. Or, instead of the MP3 player, I would juts connect a small car alarm siren and let it go off for a split of a second. Perhaps add some flashing lights for good measure. With a big battery, the options are limitless.
Wow, great project 👍
Great walkthrough of the process and problems.
Thanks for sharing your experience with all of us 👍😀
I feel like the fox will eventually realize the sound is harmless and continue with his mischief
Love this! Thanks for walking us thru the trig board extension.
Nice one! Thanks for making the whole lot available to all and the run down on this video.
I was under the assumption that the Class D amps needed a positive rail, a negative rail. Not a Positive and a Ground. Is the amp really a class D amp? Just wondering. Thanks for the video.
ha, well the amazon description claims its based on a PAM8610... that is indeed a D-Class amp, which only needs a single rail. Not sure, but may internally generate a negative rail as well.
Class D amplifiers tend to use a H bridge, so switch both sides of the speaker. You do need good filtering if you have long leads, as you are essentially building an unlicensed radio transmitter, so you will need to have some LC filtering on both speaker connections to reduce this. Short wires minimal LC filtering will work, but if the wires are over around 1m you do need to put in the better spec components.
@@Kevindarrah Edit: Ok. Thanks.
What oscilloscope software thingy do you use there?
Otii Arc
@@Kevindarrah great, thanks 👍🏻
Cool. Hey, what' the frequency range of the amp and mp3 player? Fox have a hearing range similar to dogs. So, maybe experiment with ultrasonic tones as well. Hopefully, it will help the kids have a better night sleep😁
oh that's a good idea! Didn't even think about that