M1 Support Forum Sending commands via serial Reply To: Sending commands via serial

M1 Installer

    I got it working by adding \r\n at the end but it’s intermittent. I used this command to turn on output 9 0Ecn0090000000D1\r\n from the 2009 serial documentation, the checksum was D8. Someone from a forum told me to use D1 Now, I’m trying to turn off output 9 but this command fails 09cf00900DC\r\n

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