Want to make a tiny audio player whcih play a certain audio( about a 5 mins audio) on loop 24/7 and it needs to be solar powered

Other Hardware Home Automation
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  1. i wanted to ask i want a device whihc can play an audio for a long time without dying.. cant charge it.. it should just play a certain audio.. maybe for 1 year or more contiously
    like just a 10 min audio continously
    for years .. or atleast month without it dying

a tiny device.. more tiny the better (edited)

maybe a solar powered audio player

cuz it will be out in the sun
can anybody make such a thing
i need many
the reason i suggested letting someone design it, is that I think that it'll be cheaper to order those parts in bulk (a micocontroller, seperate speaker, sd card and battery) than it is to buy something off the shelf(pre-built music player + solar powered battery pack). But i haven't verified if that is actually the case. (i.e what the cheapest off the shelf solution would be)

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The ATmega328P (TQFP) cost $2.55 (USD) in 1K quantities.
Could you afford $2550 just for the micro?

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I think you have absolutely unrealistic wishes.

What amplifier do you want to use?
How should that be powered for a year?

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just for the micro to controll all the devices? plus i want to be able to leave it in a forest where plants can hear it.. somehting like that

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also thats why i wanted to use solar power for this

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DF Player Pro has a mode where it will play a track on auto-repeat continuously.

I think that it'll be cheaper to order those parts in bulk

How many do you need? At qty 1,000 it's cheaper to buy the audio players. I'm sure you can save money by buying them on Alibaba. At qty 50,000 then it's may cost less for a custom design.

[edit]
Here's one for under $1.00 https://www.aliexpress.us/item/2251832241405310.html

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not an amplifier but liek just a basic audio player which woulp play something and i can put it in a forest where a few plants can listen

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Yes, just for the micro. The battery and solar panel will probably be the most expensive parts

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and yes i can afford to get 1 k ! that is actually perfect

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i actually need help to design the hwole thing.. i have no idea.. i asked a friend and the thing i posted about the components he only said

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If Arduino is not your thing, then maybe ask in here;

Giving an idea of how much you would pay ...............

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As I demonstrated, you can buy them in single units on AliExpress for under $1.00 each. At qty 1,000 that would cost no more than $790.00 total and you could probably negotiate the price for less. It is very unlikely that you will find anyone competent to design it for you for less than that and then you'll still have the cost of manufacturing.

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You need to set up a working audio system similar to what the end product will behave like and measure its amperage draw and voltage requirements.

Measure the average solar distribution for that area using online calculators. Size the right solar panel with an MPPT charge controller and appropriate battery(s) with the appropriate housing. Use buck and/or boost converters to get the voltages you need. Run the program and enjoy your serenity.

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Why? Is it difficult? Or unimportant?

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A basic audio player has an amplifier,

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paid consuktancy doenst work for me cuz mostly people are unhelpful even after payment.. if someone is willing to he;p me out here id be grateful and would also pay for their help if they like.. but this is not a personal project more of a voluntarty and chairty project from my side

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can u help me develop from scratch

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Possibly. You need to share some better details on which portions of this project you can do yourself vs which you need help with.

If you know the voltage(s) and amperages needed then it's easy to make recommendations. If you have no electronics or programming experience, you're going to have a very difficult time.

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i need someone to create and design the whole project for me .. i will try to handle the end product myself.. this is not a school project or anything but i need a whole product for practical purposes

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I've done some consulting work in the past and there's a term called "scope creep" that's used frequently. It's when the desired goal is met as well as can be expected for the stated purpose, but that goal then somehow changes. Are you sure that this isn't the case with your previous consultants? They may have felt you were expecting something they hadn't planned on delivering.