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by zicmama
Fri May 17, 2019 9:12 am
Forum: HATs and other add-ons
Topic: Anyone familiar with the Waveshare GSM/Bluetooth Hat?
Replies: 27
Views: 14791

Re: Anyone familiar with the Waveshare GSM/Bluetooth Hat?

When you activate serial communication (UART) between RPi & GSM pHAT, system is using it for console. As serial port cannot handle multiple simultaneous use, it makes trouble.

Remove console=serial0,115200 from /boot/cmdline.txt and reboot ;)

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