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This tutorial is about how to get started using the WiFi function of the ESP32. You can choose specific WiFi network and connect to it. You can monitor the connection status via serial monitor. All the tests performed here using ESP32 NodeMCU module.
If you're trying to save energy, one way is to turn the lights off in rooms when you're not using them. But what about the hallway if you're always going up and down the stairs? You want something that lights automatically.
If you've got a baby you're supposed to keep room temperature between 16 and 20 degrees Celsius - but how do you know at night? Here, we'll make a night light that changes color depending on the temperature.
While the Espruino board doesn't have enough memory to take proper pictures, nothing stops it from controlling other devices. In many cases this is a cheaper and more power efficient way to get the same result!
The controller chips have a serial data input and output, and can be daisy-chained together. In this way you can control many different lights using just a few control wires (rather than needing wires going to each individual light).