Connecting on /dev/cu.usbserial-A50285BI via kline, target 0xD5 source 0xF5, fast init...
Attempt 1/3 failed (timed out waiting for 1 bytes, got 0 (none)); retrying in 5s...
Attempt 2/3 failed (timed out waiting for 1 bytes, got 0 (none)); retrying in 5s...