I am working on my graduation thesis, which involves serial communication issues in embedded Linux. Let me briefly describe my situation. I now have a Gumstix system, which is an expansion board based
I found a cheap wood processing company on Taobao. After several modifications, the mechanical part of the wheelbarrow finally chose wood as the frame of the unicycle. The advantage of using wood as t
[i=s] This post was last edited by qwqwqw2088 on 2017-6-7 18:34 [/i] [b][b][color=#000000]The schematic diagram is imported into the PCB and it shows Unkonwpin. How to solve it [/color][/b][/b][b][col