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By YG0820
#95436
rooppoorali wrote:Looks like some other resistors must be added too. As shown here: https://create.arduino.cc/projecthub/im ... uno-663b9e



After connecting the resistor, the LED on the ESP8266 blinked for a moment when the PC and arduino were connected via USB. However, I still can't upload the data. Is the resistor value incorrect? Or is there some other cause?