1  # SPDX-FileCopyrightText: 2019 John Edgar Park for Adafruit Industries
 2  #
 3  # SPDX-License-Identifier: MIT
 4  
 5  #Turtle Gizmo Asterix
 6  #==| Turtle Gizmo Setup start |========================================
 7  import board
 8  import busio
 9  import displayio
10  from adafruit_st7789 import ST7789
11  from adafruit_turtle import turtle
12  displayio.release_displays()
13  spi = busio.SPI(board.SCL, MOSI=board.SDA)
14  display_bus = displayio.FourWire(spi, command=board.TX, chip_select=board.RX)
15  display = ST7789(display_bus, width=240, height=240, rowstart=80,
16                   backlight_pin=board.A3, rotation=180)
17  turtle = turtle(display)
18  #==| Turtle Gizmo Setup end |=========================================
19  
20  turtle.pendown()
21  for _ in range(20):
22      turtle.forward(80)
23      turtle.back(80) #try changing this to 70 for an iris effect
24      turtle.left(18)
25  
26  while True:
27      pass