GaltresIT
commented
5 years ago Hey @mlnima , Look at PiMotor.py https://github.com/sbcshop/MotorShield/blob/master/PiMotor.py
The pins config is defined in the first few lines....
''' Class to handle interaction with the motor pins
Supports redefinition of "forward" and "backward" depending on how motors are connected
Use the supplied Motorshieldtest module to test the correct configuration for your project.
Arguments:
motor = string motor pin label (i.e. "MOTOR1","MOTOR2","MOTOR3","MOTOR4") identifying the pins to which
the motor is connected.
config = int defining which pins control "forward" and "backward" movement. motorpins = {"MOTOR4":{"config":{1:{"e":32,"f":24,"r":26},2:{"e":32,"f":26,"r":24}},"arrow":1},
"MOTOR3":{"config":{1:{"e":19,"f":21,"r":23},2:{"e":19,"f":23,"r":21}}, "arrow":2},
"MOTOR2":{"config":{1:{"e":22,"f":16,"r":18},2:{"e":22,"f":18,"r":16}}, "arrow":3},
"MOTOR1":{"config":{1:{"e":11,"f":15,"r":13},2:{"e":11,"f":13,"r":15}},"arrow":4}}
def __init__(self, motor, config):
self.testMode = False
self.arrow = Arrow(self.motorpins[motor]["arrow"])
self.pins = self.motorpins[motor]["config"][config]
GPIO.setup(self.pins['e'],GPIO.OUT)
GPIO.setup(self.pins['f'],GPIO.OUT)
GPIO.setup(self.pins['r'],GPIO.OUT)
self.PWM = GPIO.PWM(self.pins['e'], 50) # 50Hz frequency
self.PWM.start(0)
GPIO.output(self.pins['e'],GPIO.HIGH)
GPIO.output(self.pins['f'],GPIO.LOW)
GPIO.output(self.pins['r'],GPIO.LOW)If you are wanting to use node red, may I suggest you look at - https://www.element14.com/community/community/raspberry-pi/raspberrypi_projects/blog/2016/04/04/controlling-motors-and-lights-with-node-red
Hope this helps.
mlnima
Hi,
i wanna write with nodejs but i dont know which motor is on which pin in gpio, can tell me pin numbers ?
Thanks