and in that arena [jomjol] has a very neat solution involving an ESP32 camera module and a software neural network to identify meter readings directly. The ESP and camera sit at the top of a 3D ...

Those little ESP32-CAM boards which mate the WiFi-enabled microcontroller with a small parallel-interface camera module have been with us for years, and while they are undeniably cool to play ...

Additionally, he explored an alternative approach without removing any hardware. Instead, he used the Roomba Open Interface (ROI), a built-in feature of the vacuum cleaner’s original control board.

Of course, you'll need a camera module that’s compatible with your ESP32 board, and there are plenty of affordable options ...