![]() ![]() dev/serial0 # (from /etc/ppp/peers/provider)Ĭonnect chat -s -v -f /etc/chatscripts/chat-connect -T. Remotename 3gppp # (from /etc/ppp/peers/provider) Updetach # (from /etc/ppp/peers/provider) When I try sudo pon I get the following output that seems like UART is not communicating properly: Lrwxrwxrwx 1 root root 15 stdin -> /proc/self/fd/0ĮDIT: Sorry, forget to attach Any confirmation that UART is working? I have the same problem as Tom - the same setup was previously working well with the USB cable. Lrwxrwxrwx 1 root root 15 stderr -> /proc/self/fd/2 is the UART assigned to the Linux console (which depends on the Raspberry Pi model). Lrwxrwxrwx 1 root root 7 Feb 17 10:25 serial1 -> ttyAMA0ĭrwxr-xr-x 3 root root 180 Feb 17 10:25 snd Lrwxrwxrwx 1 root root 5 Feb 17 10:25 serial0 -> ttyS0 Ls: cannot access '/dev/serial/by-id': No such file or $ ls /dev -lĬrw-rw-rw- 1 root root 1, 8 Feb 17 10:25 random Ĭrw-rw-r- 1 root netdev 10, 242 Feb 17 10:25 rfkill rial: ttyS0 at MMIO 0x0 (irq = 53, base_baud = 31250000) is a $ ls /dev/serial/by-id rial: ttyAMA0 at MMIO 0x3f201000 (irq = 81, base_baud = 0) is a PL011 rev2 ![]() If this can be useful to c onnect to the Raspberry without int ernet, it is however incompatible with standard use of the serial port. Those are the output of the commands: $ dmesg | grep "tty" By default, the Raspberry Pi serial port is connected to the console to allow control of the Raspberry Pi without a graphical interface. It looks similar to mine sixfab, I also checked and I have the same signal on pin 8 and X1-11 (refferenced to this schematic ) so the connection looks fine. Hi see you attached images, thanks for that. ![]()
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