Firmware for https://oshwlab.com/carlk3/volt-reg-1-1_copy_copy_copy_copy_copy and https://oshwlab.com/carlk3/volt-reg-1-1_copy_copy_copy.
Firmware for https://oshwlab.com/carlk3/volt-reg-1-1_copy_copy_copy_copy_copy and https://oshwlab.com/carlk3/volt-reg-1-1_copy_copy_copy.