My uploads are not successful indeed, and looks like this:
Sketch uses 258604 bytes (24%) of program storage space. Maximum is 1044464 bytes.
Global variables use 26696 bytes (32%) of dynamic memory, leaving 55224 bytes for local variables. Maximum is 81920 bytes.
An error occurred while uploading the sketch
Uploading 262752 bytes from C:\Users\erelo\AppData\Local\Temp\arduino_build_191142/Blink.ino.bin to flash at 0x00000000
warning: espcomm_send_command: didn't receive command response
warning: espcomm_send_command(FLASH_DOWNLOAD_BEGIN) failed
error: espcomm_upload_mem failed
If i upgrade esp8266 board to v3.0, my error turns into this:
Executable segment sizes:
ICACHE : 32768 - flash instruction cache
IROM : 231756 - code in flash (default or ICACHE_FLASH_ATTR)
IRAM : 26777 / 32768 - code in IRAM (IRAM_ATTR, ISRs...)
DATA : 1496 ) - initialized variables (global, static) in RAM/HEAP
RODATA : 876 ) / 81920 - constants (global, static) in RAM/HEAP
BSS : 25608 ) - zeroed variables (global, static) in RAM/HEAP
Sketch uses 260905 bytes (24%) of program storage space. Maximum is 1044464 bytes.
Global variables use 27980 bytes (34%) of dynamic memory, leaving 53940 bytes for local variables. Maximum is 81920 bytes.
esptool.py v3.0
Serial port COM5
Connecting....
Chip is ESP8266EX
Features: WiFi
Crystal is 26MHz
MAC: 9c:9c:1f:47:b5:35
Uploading stub...
Running stub...
Stub running...
Configuring flash size...
Traceback (most recent call last):
File "C:\Users\erelo\Documents\ArduinoData\packages\esp8266\hardware\esp8266\3.0.0/tools/upload.py", line 66, in <module>
esptool.main(cmdline)
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 3599, in main
detect_flash_size(esp, args)
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 2848, in detect_flash_size
flash_id = esp.flash_id()
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 688, in flash_id
return self.run_spiflash_command(SPIFLASH_RDID, b"", 24)
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 948, in run_spiflash_command
old_spi_usr = self.read_reg(SPI_USR_REG)
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 562, in read_reg
val, data = self.command(self.ESP_READ_REG, struct.pack('<I', addr))
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 386, in command
p = self.read()
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 331, in read
return next(self._slip_reader)
File "C:/Users/erelo/Documents/ArduinoData/packages/esp8266/hardware/esp8266/3.0.0/tools/esptool\esptool.py", line 2636, in slip_reader
raise FatalError("Timed out waiting for packet %s" % waiting_for)
esptool.FatalError: Timed out waiting for packet header
esptool.FatalError: Timed out waiting for packet header
Actually your esptool.py is v2.8 and mine is 3.0 . Can that cause a problem?