ESP8266 Community Forum

- Sun Dec 02, 2018 8:55 pm #79372 Hello, I'm new to NodeMCU 8266 12E V3

Using the arduino interface by installing ch340G drivers, or switching from cable to machine, between mac and windows.
I can not write any blink code.

I already did, grounding between D8 and GND
I already did, I pressed the flash I clicked the rst and kept my finger on the flash and it did not work
I held the flash and put the USB cable and tried and nothing too.
Already, I solved the ESP-12
Already, I solved the ch340g

Erro na IDE Arduino

Uploading 252016 bytes from /var/folders/mx/4xsply7148171f1l0_kwpppr0000gn/T/arduino_build_771144/Blink.ino.bin to flash at 0x00000000
warning: espcomm_send_command: didn't receive command response
Ocorreu um erro enquanto o sketch era carregado
warning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failed
error: espcomm_upload_mem failed


follow photos of the model of my esp

SOS!!!

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- Mon Dec 03, 2018 5:43 am #79383 looks like you are not using the correct port. Does /dev/cu.usbserial-40 disappear if you unplug your nodemcu? Did you try other ports offered?

- Mon Dec 03, 2018 9:52 am #79395 Hi, Friend using the mac it only offers this usb serial port