is there traffic on your network when you are not using it? Or what information does this traffic have, the answer to these needs will all be met with an interesting and practical device called Packet Monitor. It is a computer program or hardware, which can record the traffic that passes through the computer network or part of the network. When data flows through the network. Analyzers can store each packet and decrypt raw packet data if needed. In this project, we will build a PacketMonitor device with an ESP8266 board. We will receive the traffic in each channel and then display it graphically in graphs using the OLED display. Visit CiferTech for more tutorials, and be sure to follow my Instagram page to support me.