Code for Starry Night Guide

CircuitPython code for Circuit Playground Express and Crickit for the Adafruit Learning System Guide Starry Night by Dano

Starry_Night/starry_night.py

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+from busio import I2C
+from adafruit_seesaw.seesaw import Seesaw
+from adafruit_seesaw.pwmout import PWMOut
+from adafruit_motor import motor
+import board
+import time
+
+# Create seesaw object
+i2c = I2C(board.SCL, board.SDA)
+seesaw = Seesaw(i2c)
+
+# Create one motor on seesaw PWM pins 22 & 23
+motor_a = motor.DCMotor(PWMOut(seesaw, 22), PWMOut(seesaw, 23))
+motor_a.throttle = 0.5  # half speed forward
+
+# Create drive (PWM) object
+my_drive = PWMOut(seesaw, 13)    # Drive 1 is on s.s. pin 13
+my_drive.frequency = 1000        # Our default frequency is 1KHz
+
+while True:
+
+    my_drive.duty_cycle = 32768  # half on
+    time.sleep(0.8)
+
+    my_drive.duty_cycle = 16384  # dim
+    time.sleep(0.1)
+    
+    # and repeat!