Peer to Peer Communication for the Internet of Things Using ESP32 Microcontroller for Indoor Environments

This paper presents an alternative peer to peer communication for the Internet of Things (IoT) using ESP32 microcontroller for indoor environments. This peer-to-peer communication is called ESP-NOW. The development is done using Arduino-ESP32 in the Visual Studio Code with Platform extension. Based on the experiment, the environmental sensing data can still be transmitted using the ESP-NOW protocol even with the lowest transmission power level. Thus ESP-NOW communication can be used in indoor environments but with a limited number of devices paired up together and depends on the surrounding environments confining in the indoor environments.