Using an intelligent module allows the host system to concentrate on the task at hand while the Little Step-U performs all calculations and operation of the motor. The desired operating speed, ramp time and drive mode can be configured once and then a single command used as required, to move to fixed or relative positions. While the motor is in motion, a BUSY output is active and the movement can be optionally interrupted by one of the two external inputs.

Features:

• Full step, half step and wave drive modes
• 1-5,000 steps per second
• Inbuilt speed ramp (0.1-20.0 seconds)
• Simple serial commands (TTL interface)
• Separate power input for motor and logic
• Suitable for direct and L/R operation in all modes
• On board clamping diodes
• Current position register (+/-100,000,000)
• Zero position and user marker registers
• Absolute & Relative movement commands
• Busy output
• Two inputs suitable for optical stops
• Slave mode using inputs for STEP & DIR
• Stop with motor coils on or off

Key Specifications:

• Power Requirements: 4.5 to 5.5 VDC
• Communication: Serial
• Dimensions: 1.96 x 0.98 x 0.15 in (50 x 25 x 4 mm)
• Operating Temperature: +32 to +158 °F (0 to +70 °C)

Downloads & Resources:
Little Step U Manual (.pdf)
BS2 Examples for the Little Step U (.zip)
Settings Inquiry Sample Code (.zip)