341352 1352 - Mini Maestro 12-Channel USB Servo Controller (Assembled)

1352 - Mini Maestro 12-Channel USB Servo Controller (Assembled)

Controller USB/seriale TTL per 12 servocomandi con controllo interno tramite scripting. Ha una risoluzione di 0.25us con controllo integrato di velocità e accelerazione. Molto compatto, può anche essere utilizzato come controller generico per I/O e ingressi analogici tramite USB.
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Prezzi IVA inclusa
€ 29,82 Prezzo
€ 24,44 + VAT

 

Dettagli

 

The 12-channel Mini Maestro 12 raises the performance bar for serial servo controllers with features such as a native USB interface and internal scripting control. Whether you want the best servo control available (0.25μs resolution with built-in speed and acceleration control and pulse rates up to 333 Hz) or a general I/O controller (e.g. to interface with a sensor or ESC via your USB port), this compact, versatile device will deliver. This fully-assembled version ships with header pins installed.

The Mini Maestros are highly versatile (and compact) servo controllers and general-purpose I/O boards. They support three control methods: USB for direct connection to a computer, TTL serial for use with embedded systems, and internal scripting for self-contained, host controller-free applications. The channels can be configured as servo outputs for use with radio control (RC) servos or electronic speed controls (ESCs), as digital outputs, or as analog/digital inputs. The extremely precise, high-resolution servo pulses have a jitter of less than 200 ns, making these servo controllers well suited for high-performance applications such as robotics and animatronics, and built-in speed and acceleration control for each channel make it easy to achieve smooth, seamless movements without requiring the control source to constantly compute and stream intermediate position updates to the Mini Maestros. The Mini Maestros also feature configurable pulse rates from 1 to 333 Hz and can generate a wide range of pulses, allowing maximum responsiveness and range from modern servos. Units can be daisy-chained with additional Pololu servo and motor controllers on a single serial line.

A free configuration and control program is available for Windows and Linux, making it simple to configure and test the device over USB, create sequences of servo movements for animatronics or walking robots, and write, step through, and run scripts stored in the servo controller. The Mini Maestros’ 8 KB of internal script memory allows storage of up to approximately 3000 servo positions that can be automatically played back without any computer or external microcontroller connected.

Because the Mini Maestros’ channels can also be used as general-purpose digital outputs and analog or digital inputs, they provide an easy way to read sensors and control peripherals directly from a PC over USB, and these channels can be used with the scripting system to enable creation of self-contained animatronic displays that respond to external stimuli and trigger additional events beyond just moving servos.

Main Features

  • Three control methods: USB, TTL (5V) serial, and internal scripting
  • 0.25μs output pulse width resolution (corresponds to approximately 0.025° for a typical servo, which is beyond what the servo could resolve)
  • Pulse rate configurable from 1 to 333 Hz (2)
  • Wide pulse range of 64 to 4080 μs (2)
  • Individual speed and acceleration control for each channel
  • Channels can be optionally configured to go to a specified position or turn off on startup or error
  • Channels can also be used as:
    • General-purpose digital outputs (0 or 5 V)
    • Analog or digital inputs (channels 0 – 11 can be analog inputs; channels 12+ can be digital inputs)
    • One channel can be a PWM output with frequency from 2.93 kHz to 12 MHz and up to 10 bits of resolution
  • A simple scripting language lets you program the controller to perform complex actions even after its USB and serial connections are removed
  • Comprehensive user’s guide

Free configuration and control application for Windows makes it easy to:

  • Configure and test your controller
  • Create, run, and save sequences of servo movements for animatronics and walking robots
  • Write, step through, and run scripts stored in the servo controller

Two ways to write software to control the Maestro from a PC:

  • Virtual COM port makes it easy to send serial commands from any development environment that supports serial communication
  • Pololu USB Software Development Kit allows use of more advanced native USB commands and includes example code in C#, Visual Basic .NET, and Visual C++

TTL serial features:

  • Supports 300 – 200000 bps in fixed-baud mode, 300 – 115200 bps in autodetect-baud mode (2)
  • Simultaneously supports the Pololu protocol, which gives access to advanced functionality, and the simpler Scott Edwards MiniSSC II protocol (there is no need to configure the device for a particular protocol mode)
  • Can be daisy-chained with other Pololu servo and motor controllers using a single serial transmit line
  • Can function as a general-purpose USB-to-TTL serial adapter for projects controlled from a PC

Board can be powered off of USB or a 5 – 16 V battery, and it makes the regulated 5V available to the user. Compact size of 0.85" × 1.20" (2.16 × 3.05 cm) and light weight of 0.17 oz (4.8 g) with headers. Upgradable firmware

 

Maestro Comparison Table

 
  Micro Maestro6 Mini Maestro 12 Mini Maestro 18 Mini Maestro 24
Channels: 6 12 18 24
Analog input channels: 6 12 12 12
Digital input channels: 0 0 6 12
Width: 0.85" (2.16 cm) 1.10" (2.79 cm) 1.10" (2.79 cm) 1.10" (2.79 cm)
Length: 1.20" (3.05 cm) 1.42" (3.61 cm) 1.80" (4.57 cm) 2.30" (5.84 cm)
Weight(1): 3.0 g 4.2 g 4.9 g 6.0 g
Configurable pulse rate(2): 33–100 Hz 1–333 Hz 1–333 Hz 1–333 Hz
Pulse range(2): 64–3280 μs 64–4080 μs 64–4080 μs 64–4080 μs
Script size(3): 1 KB 8 KB 8 KB 8 KB

1 This is the weight of the board without header pins or terminal blocks.
2 The available pulse rate and range depend on each other and factors such as baud rate and number of channels used. See the Maestro User’s Guide for details.
3 The user script system is more powerful on the Mini Maestro than on the Micro Maestro. See See the Maestro User’s Guide for details.

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