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# 开发板上找串口号
## 找串口号
sudo ls /dev/tty{S*,ACM*,USB*,rfcomm*}
看看是哪儿个串口号,比如我的是/dev/ttyACM0
使用sudo dmesg | grep -i acm查看如果出现
ttyACM0: USB ACM device
说明是这个串口
## 给串口赋权限
sudo chmod 666 /dev/ttyACM0
# python版本
3.9