User Manual

Get Script Status

Compact protocol: 0xAE

Pololu protocol: 0xAA, device number, 0x2E

Response: 0x00 if the script is running, 0x01 if the script is stopped

This command responds with a single byte, either 0 or 1, to indicate whether the script is running (0)

or stopped (1). Using this command together with the commands above, you can activate a sequence

stored on the Maestro and wait until the sequence is complete before moving on to the next step of

your program.

5.g. Daisy Chaining

This section is a guide to integrating the Maestro in to a project that has multiple TTL serial devices

that use a compatible protocol. This section contains no new information about the Maestro: all of the

information in this section can be deduced from the definitions of the three serial modes (Section 5.a)

and the serial protocols used by the Maestro (Section 5.c).

First of all, you will need to decide whether to use the Pololu protocol, the Mini SSC protocol, or a mix

of both. You must make sure that no serial command you send will cause unintended operations on

the devices it was not addressed to. If you want to daisy chain several Maestros together, you can

use a mixture of both protocols. If you want to daisy chain the Maestro with other devices that use

the Pololu protocol, you can use the Pololu protocol. If you want to daisy chain the Maestro with other

devices that use the Mini SSC protocol, you can use the Mini SSC protocol.

Secondly, assign each device in the project a different device number or Mini SSC offset so that they

can be individually addressed by your serial commands. For the Maestro, this can be done in the

Serial Settings tab of the Maestro Control Center application.

The following diagram shows how to connect one master and many slave devices together into a

chain. Each of the devices may be a Maestro or any other device, such as a jrk [https://www.pololu.com/

product/1392], qik [https://www.pololu.com/product/1110] or other microcontroller.

Daisy chaining serial devices using the Pololu

protocol. An optional AND gate is used to join

multiple TX lines.

5. Serial Interface Page 59 of 99