educational institute, Seoul
This user joined on 02/25/2016.
David H Haffner Sr
Create an account to leave a comment.
Already have an account?
Thanks for following my $25 Spectrometer project!
Are you sure? yes | no
Create your Hackaday.io profile like Jong KIM and many others
© 2020 Hackaday
You are about to report the user "Jong KIM", please tell us the reason.