Put 4 of these modules in four corners of the room with a rectangular pattern. We used the ESP-01 module for this project. ESP8266 can detect the Wi-Fi signal of a specified SSID (RSSI). In this project, we want to create a WiFi heat map using the ESP8266, Arduino and 3.5″ TFT LCD. This increase in speed is due to the use of the multi-channel antenna (MIMO), the use of two 2.4 GHz and 5 GHz frequency ranges, and Medium Access Control (MAC). To increase the speed of this standard, another version called IEEE802.11n was built which speed has increased up to 200Mps. The Wi-Fi standard supports a maximum speed of 11Mps at 2.4 GHz. You can easily connect to the Internet anywhere, using this technology. Wi-Fi is usually used to connect to the wireless internet, which has made this protocol much more popular. WiFi is a protocol registered by the Wi-Fi Alliance to build the IEEE802.11 standard wireless LAN. Nowadays, many people use WiFi services on their smartphones, tablets, and PCs.
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