Let’s learn how to upgrade ESP01 Module Firmware and test AT Commands. We’ll compare both ESP01 and ESP01S Module. The process to flash latest firmware uses ESP Programming Adaptor. This is the easiest way to program ESP8266 ESP01 Module. In the end, we’ll connect ESP01 module to internet WiFi using AT Commands and serial terminal software.

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[TIMESTAMPS]
00:00 Introduction
00:09 Types of ESP01 Modules
01:34 ESP Programming Adaptor
02:28 Programming Mode
03:36 ESP8266 Flash Downloader
04:54 Reset after programming
06:48 Test AT Commands
08:46 Connect ESP01 with WiFi
12:50 Test HTTP Webserver on ESP01