i have a new mac os sierra installed. i just installed arduino IDE and the serial drivers for mac os x to make the serial usb port available for esp8266 device

when i try to flash the device through the IDE i have these errors:

Arduino:1.8.3 (Mac OS X), Scheda:"NodeMCU 1.0 (ESP-12E Module), 80 MHz, 115200, 4M (3M SPIFFS)"

Archiving built core (caching) in: /var/folders/vz/qxry2ffs3rnd2xtd557pgcf00000gp/T/arduino_cache_169716/core/core_esp8266_esp8266_nodemcuv2_CpuFrequency_80,UploadSpeed_115200,FlashSize_4M3M_244c37a477ed4ef8a63952f7a6e6a50b.a
Lo sketch usa 222149 byte (21%) dello spazio disponibile per i programmi. Il massimo è 1044464 byte.
Le variabili globali usano 31524 byte (38%) di memoria dinamica, lasciando altri 50396 byte liberi per le variabili locali. Il massimo è 81920 byte.
error: failed reading byte
warning: espcomm_send_command: cant receive slip payload data
error: unslip sequence wrong
warning: espcomm_send_command: can't receive command response header
warning: espcomm_sync failed
error: espcomm_open failed
error: espcomm_upload_mem failed
error: espcomm_upload_mem failed

what can i do?

  • i also try with esptool.py with this line: esptool.py --port /dev/tty.SLAB_USBtoUART write_flash 0x00000 /var/folders/vz/qxry2ffs3rnd2xtd557pgcf00000gp/T/arduino_build_657411/Blink.ino.bin 0x40000 /var/folders/vz/qxry2ffs3rnd2xtd557pgcf00000gp/T/arduino_build_657411/Blink.ino.bin but it keeps "connecting..." forever then i can't even stop the process – komarek Aug 16 '17 at 14:35
  • Just curious but what version of Arduino IDE are you running? I think there may be an issue with newer IDE versions and certain libraries. Also if you found a solution in another Library it would be nice to post a link to it for others. – dibs Sep 13 '17 at 6:03
  • the problem was just the silabs library. i downloaded the latest version and it's working – komarek Sep 14 '17 at 6:52

I installed another version of the driver from silabs' website and now it's working.

  • Accept your own answer to close this question. – user31481 Aug 17 '17 at 9:52

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