Stepper Thesis Controller

Such a system can potentially give high precision positioning even when built from low-cost, low-precision parts -- see Bamboo Printer.My intent was to make this setup act like a stepper motor driver board, which it does.

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Optical encoder strips and quadrature optical encoders are easy to get from junk ink-jet printers.

In order to allow retrofitting of existing systems, it is desirable to have a setup that can take the PULSE and DIRECTION command signals usually accepted by stepper motor driver boards.

The controller supports six control interfaces: USB, TTL serial, I²C, analog voltage (potentiometer), quadrature encoder, and hobby radio control (RC).

This version incorporates a TI DRV8825 driver and ships with soldered header pins and terminal blocks.

It can operate from 10 V to 47 V and can deliver up to approximately 1.8 A per phase without a heat sink or forced air flow (or 4.5 A max with sufficient additional cooling).

This version incorporates a Toshiba TB67S249FTG driver with innovative and unique features that include Automatic Gain Control, and male headers and terminal blocks are included but not soldered.The idea is to make a module that is a functional substitute for a 400 step stepper motor and a "dumb" stepper driver board.Stepper motors with fewer than 400 steps per rotation are easy to find as surplus equipment, either by themselves, or in old computer printers.It can operate from 2.5 V to 10.8 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (or 2 A max with sufficient additional cooling).This version incorporates a TI DRV8834 driver, and male headers and terminal blocks are included but not soldered.The table below lists the members of the Tic family and shows the key differences between them.The Tic T825 USB Multi-Interface Stepper Motor Controller makes basic control of a stepper motor easy, with quick configuration over USB using our free software.It can operate from 8.5 V to 45 V and can deliver up to approximately 1.5 A per phase without a heat sink or forced air flow (or 2.5 A max with sufficient additional cooling).This version incorporates a TI DRV8825 driver, and male headers and terminal blocks are included but not soldered.Hardware (L293D)Run four solenoids, two DC motors or one bi-polar or uni-polar stepper with up to 600m A per channel using the L293D.These are perhaps better known as "the drivers in Adafruit Motorshield".

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