For hobbyist use (where quantity is usually 1 and shipping and work matter more than a $1 part cost), I've found that going overkill is usually worth it. A ESP

For hobbyist use (where quantity is usually 1 and shipping and work matter more than a $1 part cost), I've found that going overkill is usually worth it. A ESP32 board with a built in display costs around $10, and is pretty universal and easy to use, and scale makes them cheap. Need more? Stick a phone to it. I'm surprised there isn't some common "overkill" industrial board similar to a very cheap smartphone, minus battery/charging, camera, and GPS, plus connectors for various protocols/pins for interfacing with other devices. Cheap smartphones cost less than $30, so such a board shouldn't the very expensive, and it could save a lot of development time and costs for bespoke hardware design when building devices that need a touchscreen and WiFi (think a fancy washing machine or fridge).