67 lines
2.1 KiB
Python
67 lines
2.1 KiB
Python
import math
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from .pca9685 import ServoController, map_range
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from .dc_motor_controller import DcMotor, setup_gpio
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try:
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from RPi import GPIO
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except ImportError:
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from .mockGpio import GPIO
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PIN_MOTOR_A_ENABLE = 6
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PIN_MOTOR_A_REVERSE = 12
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PIN_MOTOR_B_ENABLE = 0
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PIN_MOTOR_B_REVERSE = 5
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SERVO_ARM_L = 15
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SERVO_ARM_R = 14
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SERVO_EYE_L = 13
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SERVO_EYE_R = 12
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SERVO_NECK_ROTATE = 11
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SERVO_NECK_TOP = 10
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SERVO_NECK_BOTTOM = 9
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class WallE:
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def __init__(self):
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setup_gpio()
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self.motor_a = DcMotor(PIN_MOTOR_A_ENABLE, PIN_MOTOR_A_REVERSE)
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self.motor_b = DcMotor(PIN_MOTOR_B_ENABLE, PIN_MOTOR_B_REVERSE)
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self.servo_controller = ServoController()
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self.servo_controller.setup()
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def set_movement(self, angle: float, force: float):
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if force > 1:
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force = 1.0
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x = math.cos(angle) * force
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y = math.sin(angle) * force
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if y >= 0:
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n_mot_premix_l = 1.0 if x >= 0 else 1.0 + x
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n_mot_premix_r = 1.0 - x if x >= 0 else 1.0
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else:
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n_mot_premix_l = 1.0 - x if x >= 0 else 1.0
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n_mot_premix_r = 1.0 if x >= 0 else 1.0 + x
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n_mot_premix_l = n_mot_premix_l * y / 1.0
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n_mot_premix_r = n_mot_premix_r * y / 1.0
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n_piv_speed = x
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f_piv_scale = 0.0 if abs(y) > .4 else 1.0 - abs(y) / .4
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mot_mix_l = (1.0 - f_piv_scale) * n_mot_premix_l + f_piv_scale * n_piv_speed
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mot_mix_r = (1.0 - f_piv_scale) * n_mot_premix_r + f_piv_scale * (-n_piv_speed)
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self.motor_a.set(mot_mix_l)
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self.motor_b.set(mot_mix_r)
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def set_eye_velocity(self, angle: float, distance: float):
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if distance > 1:
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distance = 1
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up_down = distance * math.sin(angle)
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left_right = distance * math.cos(angle)
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min_arm_r = 60
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max_arm_r = 160 # 80
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min_arm_l = 20
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max_arm_l = 100 # 80
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self.servo_controller.write(SERVO_ARM_L, map_range(up_down, -1.0, 1.0, min_arm_l, max_arm_l))
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self.servo_controller.write(SERVO_ARM_R, map_range(left_right, -1.0, 1.0, min_arm_r, max_arm_r))
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