I have questions about attaching LEDs directly to 3V CR3032 batteries.
These https://shop.pimoroni.com/products/5mm-rainbow-led-pack-of-10 are suggested as an option for use with https://shop.pimoroni.com/products/business-beasts-led-craft-kit The description for the beasts says to buy 3V CR3032 but the description for the rainbow LEDs says:
In our testing, these LEDs will work happily at either 3.3V or 5V.
So given that 3.3 is more than 3 is swapping in a rainbow LED actually going to work? If 3.3V wasn’t mentioned I’d just assume it would given the rainbows being suggested as an option.