Arduino Dual Step Motor Driver Shield

Overview

Dual stepper motor driver shield can drive 2 stepper motors at the same time by Arduino. It can work with the power supply from 4.75V to 30V. High accuracy controlling can be supported by Arduino for CNC milling machine.

Features

• Dual step motor driver design for Cartesian coordinate system
• ±750mA, 5-30V output rating
• Automatic current-decay mode detection/selection
• 3.0 to 5.5V logic supply voltage range
• Mixed, fast and slow current-decay modes
• Internal UVLO and thermal shutdown circuitry
• Crossover-current protection

Specifications

PCB size	68.33mm X 60.7mm X 1.6mm
Indicators	PWR
Communication Protocol	UART, IIC
RoSH	Yes

Electrical Characteristics

Parameter	Min.	Typical	Max.	Unit
Power voltage (Vsupply)	4.75	-	30	VDC
Power voltage (Vlogic)	3	-	5.5	VDC
Input voltage VH	0.7Vlogic	-	-	V
Input voltage VL	-	-	0.3Vlogic	V
Current Consumption	-	-	70	mA

Hardware

Figure 1 Top Map

Arduino Socket defination:

| align="center" style="background:#f0f0f0;"|Pin | align="center" style="background:#f0f0f0;"|Description

D0	UART_Rx
D1	UART_Tx
D2	X Step
D3	X Direction
D4	X MS1 setting
D5	X MS2 setting
D6	Y Step
D7	Y Direction
D8	Y MS1 setting
D9	Y MS2 setting
D10	-
D11	-
D12	-
D13	-
A0	ENY
A1	SLEEPY
A2	ENX
A3	SLEEPX
A4	IIC_SCL
A5	IIC_SDA