For motors 1 and 2 you can choose '''MOTOR12_64KHZ, MOTOR12_8KHZ, MOTOR12_2KHZ''', or '''MOTOR12_1KHZ'''. A high speed like 64KHz wont be audible but a low speed like 1KHz will use less power. Motors 3 & 4 are only possible to run at 1KHz and will ignore any setting given | For motors 1 and 2 you can choose '''MOTOR12_64KHZ, MOTOR12_8KHZ, MOTOR12_2KHZ''', or '''MOTOR12_1KHZ'''. A high speed like 64KHz wont be audible but a low speed like 1KHz will use less power. Motors 3 & 4 are only possible to run at 1KHz and will ignore any setting given |