3 ms·
Many Chinese WiFi security cameras sold on Amazon do this today. Namely Yi Home security cameras. Others use QR bar-codes, which I think is better for security
by slimsag 6y ago
Many Chinese WiFi security cameras sold on Amazon do this today. Namely Yi Home security cameras.
Others use QR bar-codes, which I think is better for security cameras - but nonetheless the Yi Home ones do it through sound exactly as you described.
- primitivesuave 6y agoThank you for the perspective! I remember back in the day I would rig a photo resistor to an Arduino so I could flash instructions to it with an LED without needing to reprogram.