![]() If self.regvals is None or self. "Writes an 8-bit value to the specified register/address" These changes are incompatible with anything other than stepper motors, and could short out the power supply through the HAT if anything goes wrong - which would probably trash the HAT.Īnd the method write8 should be amended as follows: The code changes are all in the Adafruit_I2C.py module. The version can also step significantly faster, but the jitter does start to build up at really fast step rates. ![]() The step rates of the varying speed motor here are twice as fast as the previous version, even when the second motor is stepping twice as fast as before the jitter is far lower for both motors. When the steps to the 2 motors coincide it impacts one or both motors. The motor was specified to have a max current of 350mA so that it could be driven easily with an Adafruit motor shield for Arduino (or other motor driver) and a wall adapter or lead-acid battery. The level of jitter is not good, but probably not enough to cause mis-steps as long as the step rate is well below the motor's maximum. A stepper motor to satisfy all your robotics needs This 4-wire bipolar stepper has 1.8 per step for smooth motion and a nice holding torque. I then start the other stepper fairly slow (4 per second) and double the speed a few times. This graph is an overview run with one stepper running at about 20 steps per second.
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