I have a project in mind where I want to measure the weight and position of an item on a shelf. The idea was to mount the shelf on a load cell in each end and then get the weight and ratio between them to get the position. At the time I was wondering what is the cheapest way of getting electronics to measure the load and transmit it via Bluetooth to a phone. I ended up buying the Pi Zero W, because of the price (and that I love Raspberry Pi and have used them with wifi dongle previously), but its been years since I've used them and I didn't research if its possible to use it for my purpose. Can I connect 2x or 4x load cells to my Pi Zero W and be able to individually read the applied load on each load cell? I guess I can use 4x of my HX711, but what pins can I connect them to?
Let me know If my approach is wrong and some other electronics is better/more reliable.