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circuit

AutomataKit Stepper17 Circuit Design

schematic

routing

The circuit uses an ATXmega256A3U microcontroller and a TMC2130 step driver to do the business. Between the two are an SPI bus, to configure the driver, two diagnosis lines, a step, direction, and enable lines.

The TMC2130 is a popular step driver, and can sink ~ 1.5A of current.

Power is bussed into the board with two M3 Screw Terminals. The board is not polarity protected. Data is delivered on an Automatakit Port, which includes a data line (uart TX / RX) and clock lines (CLKIN and CLKOUT)