You must upload code while the TX led is lit. I do not understand step 5 of the flashing : Press the RST button while holding down the FLASH button on the breadboard - you should see a blue light on the Wi-Fi module and the TX led on the Arduino will light up. In order to be able to change it and make it behave the way I like. Hello I am new to WiFi and UNO and I like to know how things work. The FLASH button connects the GPIO0 pin on the Wi-Fi module to ground. Note: the RST button connects the RST pin on the Wi-Fi module to ground.
If the serial monitor is printing "." repeatedly, you have entered your WiFi information incorrectly. If the flash fails try the above steps again. Record the IP printed in the serial monitor for use in step 3.Now, compile and upload code (see video for procedure and expected results).Press the RST button while holding down the FLASH button on the breadboard - you should see a blue light on the Wi-Fi module and the TX led on the Arduino will light up.Open your serial monitor (ctrl+shift+m), set the baud rate to 115200, and the line formatting option to "Both NL & CR".Open the attached Arduino project and replace the SSID and PASSWORD at the top with your WiFi-network info.If there is a program currently running on your Arduino, upload an empty project file to the Arduino to avoid interference while flashing WiFi module.To flash your ESP8266 module, first check that the GPIO0 pin on the ESP8266 is connected to the FLASH button on the breadboard.
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