A1: Yes, Ｗhen using Arduino UNO with Base Shield v2, please turn the switch to 5v position; While using Seeeduino Arch with Base Shield v2, please turn the switch to 3.3v.
Q2: Does the Base shield work with Seeeduino V3 boards?
A2: Yes, please solder the pads, P1 and P2 if use Base Shield v2 with Seeeduino V3.
Q3: Where can I find technical support if I have some other issue.
A3: Please send an email to firstname.lastname@example.org