brock@uncacsci-pi-j:~/Adafruit_Python_PCA9685/Adafruit_PCA9685$ cd /var/www/html brock@uncacsci-pi-j:/var/www/html$ ls acctest foo.cgi index.lighttpd.html jdb.txt testit brock@uncacsci-pi-j:/var/www/html$ ls -l total 20 -rw-r--r-- 1 brock adm 1005 Nov 13 11:11 acctest -rwxr-xr-x 1 brock adm 31 Nov 13 10:48 foo.cgi -rw-r--r-- 1 root root 3373 Nov 13 10:34 index.lighttpd.html -rw-r--r-- 1 brock adm 12 Nov 13 10:39 jdb.txt drwxr-xr-x 2 brock adm 4096 Nov 13 11:27 testit brock@uncacsci-pi-j:/var/www/html$ cd testit brock@uncacsci-pi-j:/var/www/html/testit$ ls acctest~ acctest.cgi index.cgi listi2c.cgi listi2c.cgi~ brock@uncacsci-pi-j:/var/www/html/testit$ ls -l total 28 -rw-r--r-- 1 brock adm 1005 Nov 13 11:11 acctest~ -rwxr-xr-x 1 brock adm 284 Nov 13 11:26 acctest.cgi -rwxr-xr-x 1 brock adm 517 Nov 13 10:52 index.cgi -rw-r--r-- 1 brock adm 213 Nov 13 11:53 ledon.cgi -rw-r--r-- 1 brock adm 284 Nov 13 11:51 ledon.cgi~ -rwxr-xr-x 1 brock adm 132 Nov 13 11:08 listi2c.cgi -rw-r--r-- 1 brock adm 508 Nov 13 11:00 listi2c.cgi~ brock@uncacsci-pi-j:/var/www/html/testit$ chmod 755 ledon.cgi brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json --> -->
 
 
NameError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 11:53:47 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledon.cgi in ()
      8 print('Content-Type: application/json')
      9 print()
=>   10 print(json.dumps(True))
     11 
     12 
builtin print = <built-in function print>, json undefined

NameError: name 'json' is not defined
      args = ("name 'json' is not defined",)
      with_traceback = <built-in method with_traceback of NameError object> brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ls -l total 36 -rw-r--r-- 1 brock adm 1005 Nov 13 11:11 acctest~ -rwxr-xr-x 1 brock adm 284 Nov 13 11:26 acctest.cgi -rwxr-xr-x 1 brock adm 517 Nov 13 10:52 index.cgi -rw-r--r-- 1 brock adm 222 Nov 13 11:54 ledoff.cgi -rw-r--r-- 1 brock adm 225 Nov 13 11:54 ledoff.cgi~ -rwxr-xr-x 1 brock adm 225 Nov 13 11:53 ledon.cgi -rw-r--r-- 1 brock adm 284 Nov 13 11:51 ledon.cgi~ -rwxr-xr-x 1 brock adm 132 Nov 13 11:08 listi2c.cgi -rw-r--r-- 1 brock adm 508 Nov 13 11:00 listi2c.cgi~ brock@uncacsci-pi-j:/var/www/html/testit$ chmod 755 ./ledoff.cgi brock@uncacsci-pi-j:/var/www/html/testit$ ./ledoff.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ledoff.cgi bash: ledoff.cgi: command not found brock@uncacsci-pi-j:/var/www/html/testit$ ./ledoff.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi bash: ./ledread.cgi: Permission denied brock@uncacsci-pi-j:/var/www/html/testit$ chmod 755 ledread.cgi brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi --> -->
 
 
NameError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 12:02:14 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     11 LED0_OFF_H         = 0x09
     12 channel=15
=>   13 lowon = pwm._device.read8(LED0_ON_L+4*channel)
     14 lowoff = pwm._device.read8(LED0_ON_H+4*channel)
     15 # pwm = Adafruit_PCA9685.PCA9685()
lowon undefined, pwm undefined, LED0_ON_L = 6, channel = 15

NameError: name 'pwm' is not defined
      args = ("name 'pwm' is not defined",)
      with_traceback = <built-in method with_traceback of NameError object> brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi --> -->
 
 
AttributeError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 12:02:58 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     12 pwm = Adafruit_PCA9685.PCA9685()
     13 channel=15
=>   14 lowon = pwm._device.read8(LED0_ON_L+4*channel)
     15 lowoff = pwm._device.read8(LED0_ON_H+4*channel)
     16 # pwm = Adafruit_PCA9685.PCA9685()
lowon undefined, pwm = <Adafruit_PCA9685.PCA9685.PCA9685 object>, pwm._device = <Adafruit_GPIO.I2C.Device object>, pwm._device.read8 undefined, LED0_ON_L = 6, channel = 15

AttributeError: 'Device' object has no attribute 'read8'
      args = ("'Device' object has no attribute 'read8'",)
      with_traceback = <built-in method with_traceback of AttributeError object> brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi Content-Type: application/json [0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi Content-Type: application/json --> -->
 
 
NameError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 12:05:19 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     20 print('Content-Type: application/json')
     21 print()
=>   22 print(json.dumps([highon, lowon, highon, lowoff]))
     23 
     24 
builtin print = <built-in function print>, json = <module 'json' from '/usr/lib/python3.4/json/__init__.py'>, json.dumps = <function dumps>, highon = 0, lowon = 0, lowoff undefined

NameError: name 'lowoff' is not defined
      args = ("name 'lowoff' is not defined",)
      with_traceback = <built-in method with_traceback of NameError object> brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi File "./ledread.cgi", line 15 print lowon ^ SyntaxError: Missing parentheses in call to 'print' brock@uncacsci-pi-j:/var/www/html/testit$ !! ./ledread.cgi 0 0 0 0 Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ python3 Python 3.4.2 (default, Oct 19 2014, 13:31:11) [GCC 4.9.1] on linux Type "help", "copyright", "credits" or "license" for more information. >>> import Adafruit_PCA9685 >>> >>> >>> LED0_ON_L = 0x06 >>> >>> LED0_ON_H = 0x07 >>> LED0_OFF_L = 0x08 >>> LED0_OFF_H = 0x09 >>> pwm = Adafruit_PCA9685.PCA9685() >>> >>> channel=15 >>> lowon = pwm._device.readU8(LED0_ON_L+4*channel) >>> pwm.set_pwm(15,0,2000) >>> >>> print(LED0_ON_L+4*channel) 66 >>> pwm._device.readU8(LED0_ON_L+4*channel) 0 >>> pwm._device.readU8(LED0_ON_H+4*channel) 0 >>> pwm._device.readU8(LED0_OFF_L+4*channel) 208 >>> pwm._device.readU8(LED0_ON_H+4*channel) 0 >>> pwm._device.readU8(LED0_ON_H+4*channel) 0 >>> 208*255 53040 >>> 208*256 53248 >>> 2000/208 9.615384615384615 >>> print(LED0_ON_H+4*channel) 67 >>> pwm.set_pwm(15,0,2000) >>> pwm._device.readU8(LED0_ON_L+4*channel) 0 >>> pwm._device.readU8(LED0_ON_H+4*channel) 0 >>> pwm._device.readU8(LED0_OFF_L+4*channel) 208 >>> pwm._device.readU8(LED0_OFF_H+4*channel) 7 >>> 7*256 + 208 2000 >>> >>> >>> >>> >>> >>> >>> brock@uncacsci-pi-j:/var/www/html/testit$ ls acctest.cgi index.cgi ledoff.cgi ledon.cgi ledread.cgi listi2c.cgi brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi 0 0 0 0 Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ python Python 2.7.9 (default, Sep 17 2016, 20:26:04) [GCC 4.9.2] on linux2 Type "help", "copyright", "credits" or "license" for more information. >>> pwm = Adafruit_PCA9685.PCA9685() Traceback (most recent call last): File "", line 1, in NameError: name 'Adafruit_PCA9685' is not defined >>> import Adafruit_PCA9685 >>> pwm = Adafruit_PCA9685.PCA9685() >>> LED0_OFF_H = 0x09 >>> p LED0_OFF_H File "", line 1 p LED0_OFF_H ^ SyntaxError: invalid syntax >>> LED0_OFF_H 9 >>> channel=15 >>> lowoff = pwm._device.readU8(LED0_OFF_L+4*channel) Traceback (most recent call last): File "", line 1, in NameError: name 'LED0_OFF_L' is not defined >>> LED0_OFF_L = 0x08 >>> lowoff = pwm._device.readU8(LED0_OFF_L+4*channel) >>> p lowoff File "", line 1 p lowoff ^ SyntaxError: invalid syntax >>> lowoff 0 >>> pwm.set_pwm(15,0,2000) >>> >>> >>> pwm._device.readU8(LED0_OFF_L+4*channel) 208 >>> pwm._device.readU8(LED0_OFF_L+4*channel) 208 >>> pwm._device.readU8(LED0_ON_L+4*channel) Traceback (most recent call last): File "", line 1, in NameError: name 'LED0_ON_L' is not defined >>> pwm._device.readU8(6+4*channel) 0 >>> pwm._device.readU8(7+4*channel) 0 >>> pwm._device.readU8(8+4*channel) 208 >>> pwm._device.readU8(9+4*channel) 7 >>> brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi 0 0 0 0 Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi lowon 0 --> -->
 
 
AttributeError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 14:44:46 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     19 highon = pwm._device.readU8(LED0_ON_H+4*channel)
     20 time.sleep(1)
=>   21 print('highon '.highon)
     22 lowoff = pwm._device.readU8(LED0_OFF_L+4*channel)
     23 time.sleep(1)
builtin print = <built-in function print>, 'highon '.highon undefined

AttributeError: 'str' object has no attribute 'highon'
      args = ("'str' object has no attribute 'highon'",)
      with_traceback = <built-in method with_traceback of AttributeError object> brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi pwm lowon 0 highon 0 lowoff 0 highoff 0 Content-Type: application/json [0, 0, 0, 0] brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledoff.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi pwm Content-Type: application/json --> -->
 
 
NameError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 14:50:46 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     29 print('Content-Type: application/json')
     30 print()
=>   31 print(json.dumps([highon, lowon, highoff, lowoff]))
     32 
     33 
builtin print = <built-in function print>, json = <module 'json' from '/usr/lib/python3.4/json/__init__.py'>, json.dumps = <function dumps>, highon undefined, lowon undefined, highoff undefined, lowoff undefined

NameError: name 'highon' is not defined
      args = ("name 'highon' is not defined",)
      with_traceback = <built-in method with_traceback of NameError object> brock@uncacsci-pi-j:/var/www/html/testit$ ./ledon.cgi Content-Type: application/json true brock@uncacsci-pi-j:/var/www/html/testit$ ./ledread.cgi pwm Content-Type: application/json --> -->
 
 
NameError		Python 3.4.2: /usr/bin/python3
Sun Nov 13 14:52:14 2016

A problem occurred in a Python script. Here is the sequence of function calls leading up to the error, in the order they occurred.

 /var/www/html/testit/ledread.cgi in ()
     29 print('Content-Type: application/json')
     30 print()
=>   31 print(json.dumps([highon, lowon, highoff, lowoff]))
     32 
     33 
builtin print = <built-in function print>, json = <module 'json' from '/usr/lib/python3.4/json/__init__.py'>, json.dumps = <function dumps>, highon undefined, lowon undefined, highoff undefined, lowoff undefined

NameError: name 'highon' is not defined
      args = ("name 'highon' is not defined",)
      with_traceback = <built-in method with_traceback of NameError object> brock@uncacsci-pi-j:/var/www/html/testit$