“In this video we will talk about ESP8266-201. I know that few people know this version, but I like it a lot because of its possibility of antenna connection. We then made an assembly to measure the signal strength of WiFi. To do this, we made the ESP201 an Access Point. We remotely communicated a second ESP8266-201 client with server and measured the signal strength between them (dbm).
So we took two ESP201s that have a PigTail connector and connected to an antenna. We made a program using Socket TCP that sends a packet and receives the power in dbm (decibel milliwatt). This is very useful, for example, when you are automating your home and do not know if the ESP used will reach the desired distance point. With today’s assembly it will be possible to discover this in practice. You can still use this same example with ESP01.
The use of Socket communication will also be addressed today, which has the Station and the Client.”