Tell us about yourself!
I am trying to use this tutorial to interface with another usb device through OTG cable but i don't want to connect always says "can't open" although i changed the vendor and product id. can you please let me know if i should modify anything else ? (Note: my device that i want to communicate with only reply when i send something to it, not like arduino always sending data from start)
Arduino controlled light dimmer
DIY Line Follower Sensor Array