Looking for indoor tracking alternatives for a small keychain robot project (GPS is too bulky/doesn't work indoor)
Hi everyone,
I’m currently building a small keychain robot. It features a few LEDs, a touch sensor, and ideally, a tracking system.
Right now, I'm stuck on the tracking part. I initially thought about using a GPS module, but it obviously doesn't work indoors, and honestly, it’s way too bulky for a keychain-sized project.
I want the user to be able to track or locate this keychain when they lose it inside a house or a room. Since space and power are very limited, what would be the best alternative to GPS for indoor tracking?
I’ve been thinking about BLE (Bluetooth Low Energy) beacons or maybe UWB, but I’m not sure about the hardware size and implementation for a tiny robot.
Any recommendations on specific modules or methods I should look into? Thanks in advance!