发命令的时候回出现RDY,我查了手册:
Power on procedure is completed, and the module is ready to operate at fixed baud rate. (This URC does not appear when auto-bauding function is active).
说明模块一直在掉电重启掉电重启,也符合了启动后一下灯就灭,然后又亮,是不是可以断定是硬件问题。。
发命令的时候回出现RDY,我查了手册:
Power on procedure is completed, and the module is ready to operate at fixed baud rate. (This URC does not appear when auto-bauding function is active).
说明模块一直在掉电重启掉电重启,也符合了启动后一下灯就灭,然后又亮,是不是可以断定是硬件问题。。