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Showing posts with the label Raspberry Pi

Assertion Failure : Size.width>0 && Size.height>0 In Function Imshow

i am using opencv2 and python on raspberry pi. and i am new with python and opencv. i tried to read… Read more Assertion Failure : Size.width>0 && Size.height>0 In Function Imshow

How Can I Read Register Usb Rs485 To Any Modbus Device?

My Device Address is 1, I tried Read Holding Register, and Register Address is 0. I tried pyserial … Read more How Can I Read Register Usb Rs485 To Any Modbus Device?

How To Change A Space When A Button Is Pressed With Kivy?

I am trying create a GUI by implementing the template of the ComicCreator GUI sample as a template … Read more How To Change A Space When A Button Is Pressed With Kivy?

Python Attributeerror: 'module' Object Has No Attribute 'serial'

I'm trying to access a serial port with Python 2.6 on my Raspberry Pi running Debian. My script… Read more Python Attributeerror: 'module' Object Has No Attribute 'serial'

How To Install Phantomjs For Use With Python Selenium On The Raspberry Pi?

I want to run a Python script using Selenium WebDriver with PhantomJS as a headless browser on my R… Read more How To Install Phantomjs For Use With Python Selenium On The Raspberry Pi?

Raspberry Pi Crontab Starts Py Script At Bootup -> Logging: Error Mysql 2002 (can't Connect To Local Server)

A Raspberry Pi (raspian wheezy) has a cronjob, created as user pi with 'sudo crontab -e' so… Read more Raspberry Pi Crontab Starts Py Script At Bootup -> Logging: Error Mysql 2002 (can't Connect To Local Server)

Refresh Web Page Using A Cgi Python Script

I have a very simple web page which I'm using in order to rotate a stepper motor on Raspberry P… Read more Refresh Web Page Using A Cgi Python Script

Calling A Method Several Times With Several Threads

I want a LED to flash, while some work is beeing done on my Raspberry. I am using a Thread for the … Read more Calling A Method Several Times With Several Threads