User Manual

The Micro Maestro’s processor can be

powered from USB while the servos are

7. Wiring Examples

This section contains example wiring configurations for the Maestro that demonstrate the different

ways it can be connected to your project. Although many of the pictures only show the Micro Maestro,

the information in this section applies to all Maestros (unless otherwise noted).

7.a. Powering the Maestro

There are several ways to power your Maestro’s processor and the servos it is controlling.

USB power

If you connect a power supply to the servo power

terminal and connect the Maestro to USB as shown

in the picture to the right, then the Maestro’s

processor will be powered from USB while the servos

are powered from the power supply. The power

supply must output a voltage within the servos’

respective operating ranges and must be capable of

supplying all the current that the servos will draw.

In this configuration, if the computer (or other USB

host) that the Maestro is connected to goes to sleep,

then by default the Maestro will go to sleep and stop

sending servo pulses. If you need to drive your servos while your computer is off, you can use the

Never sleep (ignore USB suspend) option in the Serial Settings tab of the Maestro Control Center.

Note that this will only work if the computer is supplying power to the USB port while it is asleep, and

it will make your Maestro be non-USB-compliant.

Two power supplies

7. Wiring Examples Page 90 of 102