ESP8266 Community Forum

- Sun Feb 21, 2016 8:56 pm #41622 hi, not sure if this is the right place, but it seems rightest (as im using the arduino ide!)

i have an ESP-01, and a sparkfun FT232R breakout board (supports RTS and DTR) and i have it connected up as per http://www.arduinesp.com/getting-started with 2 npn transistors. i also have 2 aa batteries wired in for the right amperage.

im on a mac, with arduino 1.6.5 installed, and have installed the esp boards, and have it selected to generic esp8266.

now when i upload the simple blink sketch i get;

warning: espcomm_sync failed
error: espcomm_open failed

i believe that as i'm on a mac, i should install esptool, or esptool.py (from googling) and have tried to run the install.py (in terminal sudo) but then i get an error saying that it can't find esptool.py...

i feel like i'm missing a minor, but annoyingly needful step.

Code: Select allSketch uses 198,796 bytes (19%) of program storage space. Maximum is 1,044,464 bytes.
Global variables use 33,014 bytes (40%) of dynamic memory, leaving 48,906 bytes for local variables. Maximum is 81,920 bytes.
/Users/kelvinmead2/Library/Arduino15/packages/esp8266/tools/esptool/0.4.6/esptool -vv -cd nodemcu -cb 115200 -cp /dev/cu.usbserial-A601FCG3 -ca 0x00000 -cf /var/folders/xs/fw34443d5pd83bd26mj78qv00000gn/T/buildd5ae82e677127ac286f51de66781d807.tmp/Blink.ino.bin
esptool v0.4.6 - (c) 2014 Ch. Klippel <ck@atelier-klippel.de>
   setting board to nodemcu
   setting baudrate from 115200 to 115200
   setting port from /dev/tty.usbserial to /dev/cu.usbserial-A601FCG3
   setting address from 0x00000000 to 0x00000000
   espcomm_upload_file
   stat /var/folders/xs/fw34443d5pd83bd26mj78qv00000gn/T/buildd5ae82e677127ac286f51de66781d807.tmp/Blink.ino.bin success
opening port /dev/cu.usbserial-A601FCG3 at 115200
   tcgetattr
   tcsetattr
   serial open
opening bootloader
resetting board
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
resetting board
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
resetting board
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
trying to connect
   setting character timeout 0
   done
   setting character timeout 1
   done
   espcomm_send_command: sending command header
   espcomm_send_command: sending command payload
   serialport_receive_C0: 00 instead of C0
warning: espcomm_sync failed
error: espcomm_open failed


esptool install

Code: Select allKelvins-MBP:~ kelvinmead2$ sudo python /Users/kelvinmead2/Downloads/esptool-master/setup.py install
Password:
running install
Checking .pth file support in /Library/Python/2.7/site-packages/
/usr/bin/python -E -c pass
TEST PASSED: /Library/Python/2.7/site-packages/ appears to support .pth files
running bdist_egg
running egg_info
creating esptool.egg-info
writing requirements to esptool.egg-info/requires.txt
writing esptool.egg-info/PKG-INFO
writing top-level names to esptool.egg-info/top_level.txt
writing dependency_links to esptool.egg-info/dependency_links.txt
writing manifest file 'esptool.egg-info/SOURCES.txt'
warning: manifest_maker: standard file 'setup.py' not found

reading manifest file 'esptool.egg-info/SOURCES.txt'
writing manifest file 'esptool.egg-info/SOURCES.txt'
installing library code to build/bdist.macosx-10.11-intel/egg
running install_lib
warning: install_lib: 'build/lib' does not exist -- no Python modules to install

creating build
creating build/bdist.macosx-10.11-intel
creating build/bdist.macosx-10.11-intel/egg
creating build/bdist.macosx-10.11-intel/egg/EGG-INFO
installing scripts to build/bdist.macosx-10.11-intel/egg/EGG-INFO/scripts
running install_scripts
running build_scripts
creating build/scripts-2.7
error: file '/Users/kelvinmead2/esptool.py' does not exist

apologies for the long post.

- Tue Feb 23, 2016 9:17 am #41718 meh... one of the resistors wasn't connected to the right leg of a transistor.