Hi there, below is a copy of the error message when attempting to upload my code. I appreciate you taking the time to help!
Using an Osepp UNO Max Board on iMac 10.12.6 Sierra
Arduino: 1.8.9 (Mac OS X), Board: "Arduino/Genuino Uno"
Sketch uses 724 bytes (2%) of program storage space. Maximum is 32256 bytes.
Global variables use 9 bytes (0%) of dynamic memory, leaving 2039 bytes for local variables. Maximum is 2048 bytes.
/private/var/folders/9v/733pv_691dd4hr1qybh21z6h0000gn/T/AppTranslocation/CF3D8DF0-7A4C-4425-ACD0-E8A29A7E306B/d/Arduino.app/Contents/Java/hardware/tools/avr/bin/avrdude -C/private/var/folders/9v/733pv_691dd4hr1qybh21z6h0000gn/T/AppTranslocation/CF3D8DF0-7A4C-4425-ACD0-E8A29A7E306B/d/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf -v -patmega328p -carduino -P/dev/cu.usbmodemFD142 -b115200 -D -Uflash:w:/var/folders/9v/733pv_691dd4hr1qybh21z6h0000gn/T/arduino_build_46207/PIN13HIGH.ino.hex:i
avrdude: Version 6.3-20171130
Copyright (c) 2000-2005 Brian Dean, http://www.bdmicro.com/
Copyright (c) 2007-2014 Joerg Wunsch
System wide configuration file is "/private/var/folders/9v/733pv_691dd4hr1qybh21z6h0000gn/T/AppTranslocation/CF3D8DF0-7A4C-4425-ACD0-E8A29A7E306B/d/Arduino.app/Contents/Java/hardware/tools/avr/etc/avrdude.conf"
User configuration file is "/Users/imac/.avrduderc"
User configuration file does not exist or is not a regular file, skipping
Using Port : /dev/cu.usbmodemFD142
Using Programmer : arduino
Overriding Baud Rate : 115200
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 1 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 2 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 3 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 4 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 5 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 6 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 7 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 8 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 9 of 10: not in sync: resp=0x00
avrdude: stk500_recv(): programmer is not responding
avrdude: stk500_getsync() attempt 10 of 10: not in sync: resp=0x00
avrdude done. Thank you.
Problem uploading to board. See http://www.arduino.cc/en/Guide/Troubleshooting#upload for suggestions.
This report would have more information with
"Show verbose output during compilation"
option enabled in File -> Preferences.
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