Smart water meters have already been on the market for some time, but replacing our old meters is often not so easy, for technical or bureaucratic reasons. With this project, an analog meter of any kind can be turned into a digital one using an ESP32-CAM platform and an artificial intelligence (AI) system. In this final installment, we see how to install the firmware and set up the camera lens for an optimal focusing and positioning on the water meter. And, of course, we deal with the whole AI-based process for the correct recognition and readout of the counter’s elements.