What knowledge do I need to learn to make a device that sends a signal to a computer through a USB port after pressing a button on the device? Thanks for any tips.
[i=s] This post was last edited by paulhyde on 2014-9-15 03:15 [/i] Does anyone know if anyone has achieved levitation with a quadcopter in the Anhui Provincial Competition E in 2012? I recently found
I made a board using the stm32f407 chip, and the network solution uses the lan8720A chip. However, I encountered a strange problem: After connecting the board to the power system, turn on the power sw