Ok. Well, you probably need to do some experiments. Your first idea might turn out not to be the best.
Fundamentally a switch is two wires touching together, with some sort of actuator that moves them. You could get creative and build your own by gluing wires to the back of your vinyl sheet and suspending that over a sheet of plywood or MDF with wires glued to the top face. A child would press on part of the vinyl, causing it to stretch slightly and touch the wires together.
Or instead of wires top and bottom have a switch with a wide actuator. Pressing the vinyl presses the actuator, which activates the physical switch.
I'd suggest taking a look at "switches" on AliExpress or Amazon, or browsing the aisles of a local electronics store if you're lucky enough to have one nearby.
My most practical suggestion would be arcade switches. They are inexpensive and robust, and the front panel comes off so you can insert a decal:
https://www.aliexpress.com/item/1005005621582747.html
Your button board would have to be quite deep to accommodate the switch mechanism.
Button wiring is no problem. You can have twenty or thirty centimetres easily, and with a deep box there's plenty of room for the micro.
Here's an article about playing mp3 files on a Pi Pico:
https://embeddedcomputing.com/technolog ... ry-pi-pico
There are plenty of I/O pins so you can just hook up the switches directly to the Pico without any tricks.
This is an interesting project, and it is well-defined so you have a good chance it will work.
Fundamentally a switch is two wires touching together, with some sort of actuator that moves them. You could get creative and build your own by gluing wires to the back of your vinyl sheet and suspending that over a sheet of plywood or MDF with wires glued to the top face. A child would press on part of the vinyl, causing it to stretch slightly and touch the wires together.
Or instead of wires top and bottom have a switch with a wide actuator. Pressing the vinyl presses the actuator, which activates the physical switch.
I'd suggest taking a look at "switches" on AliExpress or Amazon, or browsing the aisles of a local electronics store if you're lucky enough to have one nearby.
My most practical suggestion would be arcade switches. They are inexpensive and robust, and the front panel comes off so you can insert a decal:
https://www.aliexpress.com/item/1005005621582747.html
Your button board would have to be quite deep to accommodate the switch mechanism.
Button wiring is no problem. You can have twenty or thirty centimetres easily, and with a deep box there's plenty of room for the micro.
Here's an article about playing mp3 files on a Pi Pico:
https://embeddedcomputing.com/technolog ... ry-pi-pico
There are plenty of I/O pins so you can just hook up the switches directly to the Pico without any tricks.
This is an interesting project, and it is well-defined so you have a good chance it will work.
Statistics: Posted by ame — Thu Jan 25, 2024 6:45 pm