Hi,
First post and my knees are rattling. Ive recently completed an online tutorial at openhomeautomation.net where the author explains how to remotely control a motor using a raspberry pi and an arduino uno. I ve followed through the steps but have hit a problem where the motor runs but I am unable to alter the speed. The project is stalling at the stage where a python script is passing a string to the arduino. Tutorial is at: openhomeautomation.net
If anyone out there thinks that they may be able to help me fix this and could give me a costing Id be extremely grateful.