//the first one didnt work, 2nd one did:
Sams-MacBook-Air:dev samsol$ ls -l /dev/tty.usb*
ls: /dev/tty.usb*: No such file or directory
Sams-MacBook-Air:dev samsol$ ls -l /dev/tty*
crw-rw-rw- 1 root wheel 2, 0 Aug 24 09:44 /dev/tty
crw-rw-rw- 1 root wheel 21, 0 Aug 24 09:44 /dev/tty.Bluetooth-Incoming-Port
crw-rw-rw- 1 root wheel 21, 2 Aug 24 09:44 /dev/tty.SamSolsiPhone-Wir
crw-rw-rw- 1 root wheel 4, 0 Aug 24 09:44 /dev/ttyp0
crw-rw-rw- 1 root wheel 4, 1 Aug 24 09:44 /dev/ttyp1
crw-rw-rw- 1 root wheel 4, 2 Aug 24 09:44 /dev/ttyp2
crw-rw-rw- 1 root wheel 4, 3 Aug 24 09:44 /dev/ttyp3
crw-rw-rw- 1 root wheel 4, 4 Aug 24 09:44 /dev/ttyp4
crw-rw-rw- 1 root wheel 4, 5 Aug 24 09:44 /dev/ttyp5
crw-rw-rw- 1 root wheel 4, 6 Aug 24 09:44 /dev/ttyp6
crw-rw-rw- 1 root wheel 4, 7 Aug 24 09:44 /dev/ttyp7
crw-rw-rw- 1 root wheel 4, 8 Aug 24 09:44 /dev/ttyp8
crw-rw-rw- 1 root wheel 4, 9 Aug 24 09:44 /dev/ttyp9
crw-rw-rw- 1 root wheel 4, 10 Aug 24 09:44 /dev/ttypa
crw-rw-rw- 1 root wheel 4, 11 Aug 24 09:44 /dev/ttypb
crw-rw-rw- 1 root wheel 4, 12 Aug 24 09:44 /dev/ttypc
crw-rw-rw- 1 root wheel 4, 13 Aug 24 09:44 /dev/ttypd
crw-rw-rw- 1 root wheel 4, 14 Aug 24 09:44 /dev/ttype
crw-rw-rw- 1 root wheel 4, 15 Aug 24 09:44 /dev/ttypf
crw-rw-rw- 1 root wheel 4, 16 Aug 24 09:44 /dev/ttyq0
crw-rw-rw- 1 root wheel 4, 17 Aug 24 09:44 /dev/ttyq1
crw-rw-rw- 1 root wheel 4, 18 Aug 24 09:44 /dev/ttyq2
crw-rw-rw- 1 root wheel 4, 19 Aug 24 09:44 /dev/ttyq3
crw-rw-rw- 1 root wheel 4, 20 Aug 24 09:44 /dev/ttyq4
crw-rw-rw- 1 root wheel 4, 21 Aug 24 09:44 /dev/ttyq5
crw-rw-rw- 1 root wheel 4, 22 Aug 24 09:44 /dev/ttyq6
crw-rw-rw- 1 root wheel 4, 23 Aug 24 09:44 /dev/ttyq7
crw-rw-rw- 1 root wheel 4, 24 Aug 24 09:44 /dev/ttyq8
crw-rw-rw- 1 root wheel 4, 25 Aug 24 09:44 /dev/ttyq9
crw-rw-rw- 1 root wheel 4, 26 Aug 24 09:44 /dev/ttyqa
crw-rw-rw- 1 root wheel 4, 27 Aug 24 09:44 /dev/ttyqb
crw-rw-rw- 1 root wheel 4, 28 Aug 24 09:44 /dev/ttyqc
crw-rw-rw- 1 root wheel 4, 29 Aug 24 09:44 /dev/ttyqd
crw-rw-rw- 1 root wheel 4, 30 Aug 24 09:44 /dev/ttyqe
crw-rw-rw- 1 root wheel 4, 31 Aug 24 09:44 /dev/ttyqf
crw-rw-rw- 1 root wheel 4, 32 Aug 24 09:44 /dev/ttyr0
crw-rw-rw- 1 root wheel 4, 33 Aug 24 09:44 /dev/ttyr1
crw-rw-rw- 1 root wheel 4, 34 Aug 24 09:44 /dev/ttyr2
crw-rw-rw- 1 root wheel 4, 35 Aug 24 09:44 /dev/ttyr3
crw-rw-rw- 1 root wheel 4, 36 Aug 24 09:44 /dev/ttyr4
crw-rw-rw- 1 root wheel 4, 37 Aug 24 09:44 /dev/ttyr5
crw-rw-rw- 1 root wheel 4, 38 Aug 24 09:44 /dev/ttyr6
crw-rw-rw- 1 root wheel 4, 39 Aug 24 09:44 /dev/ttyr7
crw-rw-rw- 1 root wheel 4, 40 Aug 24 09:44 /dev/ttyr8
crw-rw-rw- 1 root wheel 4, 41 Aug 24 09:44 /dev/ttyr9
crw-rw-rw- 1 root wheel 4, 42 Aug 24 09:44 /dev/ttyra
crw-rw-rw- 1 root wheel 4, 43 Aug 24 09:44 /dev/ttyrb
crw-rw-rw- 1 root wheel 4, 44 Aug 24 09:44 /dev/ttyrc
crw-rw-rw- 1 root wheel 4, 45 Aug 24 09:44 /dev/ttyrd
crw-rw-rw- 1 root wheel 4, 46 Aug 24 09:44 /dev/ttyre
crw-rw-rw- 1 root wheel 4, 47 Aug 24 09:44 /dev/ttyrf
crw-rw-rw- 1 root wheel 4, 48 Aug 24 09:44 /dev/ttys0
crw--w---- 1 samsol tty 16, 0 Aug 24 11:23 /dev/ttys000
crw-rw-rw- 1 root wheel 4, 49 Aug 24 09:44 /dev/ttys1
crw-rw-rw- 1 root wheel 4, 50 Aug 24 09:44 /dev/ttys2
crw-rw-rw- 1 root wheel 4, 51 Aug 24 09:44 /dev/ttys3
crw-rw-rw- 1 root wheel 4, 52 Aug 24 09:44 /dev/ttys4
crw-rw-rw- 1 root wheel 4, 53 Aug 24 09:44 /dev/ttys5
crw-rw-rw- 1 root wheel 4, 54 Aug 24 09:44 /dev/ttys6
crw-rw-rw- 1 root wheel 4, 55 Aug 24 09:44 /dev/ttys7
crw-rw-rw- 1 root wheel 4, 56 Aug 24 09:44 /dev/ttys8
crw-rw-rw- 1 root wheel 4, 57 Aug 24 09:44 /dev/ttys9
crw-rw-rw- 1 root wheel 4, 58 Aug 24 09:44 /dev/ttysa
crw-rw-rw- 1 root wheel 4, 59 Aug 24 09:44 /dev/ttysb
crw-rw-rw- 1 root wheel 4, 60 Aug 24 09:44 /dev/ttysc
crw-rw-rw- 1 root wheel 4, 61 Aug 24 09:44 /dev/ttysd
crw-rw-rw- 1 root wheel 4, 62 Aug 24 09:44 /dev/ttyse
crw-rw-rw- 1 root wheel 4, 63 Aug 24 09:44 /dev/ttysf
crw-rw-rw- 1 root wheel 4, 64 Aug 24 09:44 /dev/ttyt0
crw-rw-rw- 1 root wheel 4, 65 Aug 24 09:44 /dev/ttyt1
crw-rw-rw- 1 root wheel 4, 66 Aug 24 09:44 /dev/ttyt2
crw-rw-rw- 1 root wheel 4, 67 Aug 24 09:44 /dev/ttyt3
crw-rw-rw- 1 root wheel 4, 68 Aug 24 09:44 /dev/ttyt4
crw-rw-rw- 1 root wheel 4, 69 Aug 24 09:44 /dev/ttyt5
crw-rw-rw- 1 root wheel 4, 70 Aug 24 09:44 /dev/ttyt6
crw-rw-rw- 1 root wheel 4, 71 Aug 24 09:44 /dev/ttyt7
crw-rw-rw- 1 root wheel 4, 72 Aug 24 09:44 /dev/ttyt8
crw-rw-rw- 1 root wheel 4, 73 Aug 24 09:44 /dev/ttyt9
crw-rw-rw- 1 root wheel 4, 74 Aug 24 09:44 /dev/ttyta
crw-rw-rw- 1 root wheel 4, 75 Aug 24 09:44 /dev/ttytb
crw-rw-rw- 1 root wheel 4, 76 Aug 24 09:44 /dev/ttytc
crw-rw-rw- 1 root wheel 4, 77 Aug 24 09:44 /dev/ttytd
crw-rw-rw- 1 root wheel 4, 78 Aug 24 09:44 /dev/ttyte
crw-rw-rw- 1 root wheel 4, 79 Aug 24 09:44 /dev/ttytf
crw-rw-rw- 1 root wheel 4, 80 Aug 24 09:44 /dev/ttyu0
crw-rw-rw- 1 root wheel 4, 81 Aug 24 09:44 /dev/ttyu1
crw-rw-rw- 1 root wheel 4, 82 Aug 24 09:44 /dev/ttyu2
crw-rw-rw- 1 root wheel 4, 83 Aug 24 09:44 /dev/ttyu3
crw-rw-rw- 1 root wheel 4, 84 Aug 24 09:44 /dev/ttyu4
crw-rw-rw- 1 root wheel 4, 85 Aug 24 09:44 /dev/ttyu5
crw-rw-rw- 1 root wheel 4, 86 Aug 24 09:44 /dev/ttyu6
crw-rw-rw- 1 root wheel 4, 87 Aug 24 09:44 /dev/ttyu7
crw-rw-rw- 1 root wheel 4, 88 Aug 24 09:44 /dev/ttyu8
crw-rw-rw- 1 root wheel 4, 89 Aug 24 09:44 /dev/ttyu9
crw-rw-rw- 1 root wheel 4, 90 Aug 24 09:44 /dev/ttyua
crw-rw-rw- 1 root wheel 4, 91 Aug 24 09:44 /dev/ttyub
crw-rw-rw- 1 root wheel 4, 92 Aug 24 09:44 /dev/ttyuc
crw-rw-rw- 1 root wheel 4, 93 Aug 24 09:44 /dev/ttyud
crw-rw-rw- 1 root wheel 4, 94 Aug 24 09:44 /dev/ttyue
crw-rw-rw- 1 root wheel 4, 95 Aug 24 09:44 /dev/ttyuf
crw-rw-rw- 1 root wheel 4, 96 Aug 24 09:44 /dev/ttyv0
crw-rw-rw- 1 root wheel 4, 97 Aug 24 09:44 /dev/ttyv1
crw-rw-rw- 1 root wheel 4, 98 Aug 24 09:44 /dev/ttyv2
crw-rw-rw- 1 root wheel 4, 99 Aug 24 09:44 /dev/ttyv3
crw-rw-rw- 1 root wheel 4, 100 Aug 24 09:44 /dev/ttyv4
crw-rw-rw- 1 root wheel 4, 101 Aug 24 09:44 /dev/ttyv5
crw-rw-rw- 1 root wheel 4, 102 Aug 24 09:44 /dev/ttyv6
crw-rw-rw- 1 root wheel 4, 103 Aug 24 09:44 /dev/ttyv7
crw-rw-rw- 1 root wheel 4, 104 Aug 24 09:44 /dev/ttyv8
crw-rw-rw- 1 root wheel 4, 105 Aug 24 09:44 /dev/ttyv9
crw-rw-rw- 1 root wheel 4, 106 Aug 24 09:44 /dev/ttyva
crw-rw-rw- 1 root wheel 4, 107 Aug 24 09:44 /dev/ttyvb
crw-rw-rw- 1 root wheel 4, 108 Aug 24 09:44 /dev/ttyvc
crw-rw-rw- 1 root wheel 4, 109 Aug 24 09:44 /dev/ttyvd
crw-rw-rw- 1 root wheel 4, 110 Aug 24 09:44 /dev/ttyve
crw-rw-rw- 1 root wheel 4, 111 Aug 24 09:44 /dev/ttyvf
crw-rw-rw- 1 root wheel 4, 112 Aug 24 09:44 /dev/ttyw0
crw-rw-rw- 1 root wheel 4, 113 Aug 24 09:44 /dev/ttyw1
crw-rw-rw- 1 root wheel 4, 114 Aug 24 09:44 /dev/ttyw2
crw-rw-rw- 1 root wheel 4, 115 Aug 24 09:44 /dev/ttyw3
crw-rw-rw- 1 root wheel 4, 116 Aug 24 09:44 /dev/ttyw4
crw-rw-rw- 1 root wheel 4, 117 Aug 24 09:44 /dev/ttyw5
crw-rw-rw- 1 root wheel 4, 118 Aug 24 09:44 /dev/ttyw6
crw-rw-rw- 1 root wheel 4, 119 Aug 24 09:44 /dev/ttyw7
crw-rw-rw- 1 root wheel 4, 120 Aug 24 09:44 /dev/ttyw8
crw-rw-rw- 1 root wheel 4, 121 Aug 24 09:44 /dev/ttyw9
crw-rw-rw- 1 root wheel 4, 122 Aug 24 09:44 /dev/ttywa
crw-rw-rw- 1 root wheel 4, 123 Aug 24 09:44 /dev/ttywb
crw-rw-rw- 1 root wheel 4, 124 Aug 24 09:44 /dev/ttywc
crw-rw-rw- 1 root wheel 4, 125 Aug 24 09:44 /dev/ttywd
crw-rw-rw- 1 root wheel 4, 126 Aug 24 09:44 /dev/ttywe
crw-rw-rw- 1 root wheel 4, 127 Aug 24 09:44 /dev/ttywf
//btw Options -> Port -> shows (greyed-out) /dev/tty.usbserial- (editable) 0000101D