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ESP01. Get started with the Arduino or PlatformIO IDE. Which module to choose? Pinout


christophe
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The ESP01 is an ESP8266 module installed on a miniature development board that has four expansion slots (GPIO). The difference between the versions lies in the quantity of flash memory on board by the board, 512Ko (ESP01) or 1Mo (ESP01S).

  Initially developed to add WiFi connectivity to the Arduino, it has become a…

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 Lye Heng Foo
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Hi, there is typo.
"It’s quite simple, you need the pin GPIO2 be connected to GND when the module is powered on." in the article above should be read as GPIO0.

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