https://github.com/dzid26/StepperServoCAN
Limits:
- (1s) 3.3A peak stall current per phase
- 3.3A RMS combined motor continuous current (both phases commutating with 3.3A peak)
- 30V supply voltage (suitable for 12V and 24V systems)
Features:
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Intended to drive a stepper motor
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High impedance freewheeling with overvoltage protection
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Magnetic angle sensor (can be turned off during sleep)
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CANbus transceiver with standby mode
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Debug port for flashing and configuration with ESD protection
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Low-side current, V_mot and V_Bat, PCB temperature measurments
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Reverse polarity protection and swapped connectors protection; ESD protections on inputs
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Optional Enable port with Break interrupt capability for additional safety
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Optional expansion port for connecting UART/I2C/PWM device or sensor
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Optional solder jumper pads, e.g. for motor identification
- single sided PCB for direct mounting on the motor and efficient assembly
- Recommended motor is this with 1.8° step angle with relatively high torque per amp ratio. Best coupled with 5:1 gearbox to provide enough toruqe for steering aplications, and still relatively low friction and noise.
- Assembled board with the geared stepper motor:
