1  # SPDX-FileCopyrightText: 2020 John Park for Adafruit Industries
  2  #
  3  # SPDX-License-Identifier: MIT
  4  
  5  # Bonsai Buckaroo + CLUE Plant Care Bot
  6  
  7  import time
  8  import board
  9  from digitalio import DigitalInOut, Direction
 10  from analogio import AnalogIn
 11  from adafruit_clue import clue
 12  from adafruit_display_text import label
 13  import displayio
 14  import terminalio
 15  import pwmio
 16  
 17  moist_level = 50  # adjust this value as needed for your plant
 18  
 19  board.DISPLAY.brightness = 0.8
 20  clue.pixel.fill(0)  # turn off NeoPixel
 21  
 22  clue_display = displayio.Group()
 23  
 24  # draw the dry plant
 25  dry_plant_file = open("dry.bmp", "rb")
 26  dry_plant_bmp = displayio.OnDiskBitmap(dry_plant_file)
 27  # CircuitPython 6 & 7 compatible
 28  dry_plant_sprite = displayio.TileGrid(
 29      dry_plant_bmp,
 30      pixel_shader=getattr(dry_plant_bmp, "pixel_shader", displayio.ColorConverter()),
 31  )
 32  # CircuitPython 7 compatible
 33  # dry_plant_sprite = displayio.TileGrid(
 34  #     dry_plant_bmp, pixel_shader=dry_plant_bmp.pixel_shader
 35  # )
 36  clue_display.append(dry_plant_sprite)
 37  
 38  # draw the happy plant on top (so it can be moved out of the way when needed)
 39  happy_plant_file = open("happy.bmp", "rb")
 40  happy_plant_bmp = displayio.OnDiskBitmap(happy_plant_file)
 41  # CircuitPython 6 & 7 compatible
 42  happy_plant_sprite = displayio.TileGrid(
 43      happy_plant_bmp,
 44      pixel_shader=getattr(happy_plant_bmp, "pixel_shader", displayio.ColorConverter()),
 45  )
 46  # CircuitPython 7 compatible
 47  # happy_plant_sprite = displayio.TileGrid(
 48  #     happy_plant_bmp, pixel_shader=happy_plant_bmp.pixel_shader
 49  # )
 50  clue_display.append(happy_plant_sprite)
 51  
 52  # Create text
 53  # first create the group
 54  text_group = displayio.Group(scale=3)
 55  # Make a label
 56  title_label = label.Label(terminalio.FONT, text="CLUE Plant", color=0x00FF22)
 57  # Position the label
 58  title_label.x = 10
 59  title_label.y = 4
 60  # Append label to group
 61  text_group.append(title_label)
 62  
 63  soil_label = label.Label(terminalio.FONT, text="Soil: ", color=0xFFAA88)
 64  soil_label.x = 4
 65  soil_label.y = 64
 66  text_group.append(soil_label)
 67  
 68  motor_label = label.Label(terminalio.FONT, text="Motor off", color=0xFF0000)
 69  motor_label.x = 4
 70  motor_label.y = 74
 71  text_group.append(motor_label)
 72  
 73  clue_display.append(text_group)
 74  board.DISPLAY.show(clue_display)
 75  
 76  motor = DigitalInOut(board.P2)
 77  motor.direction = Direction.OUTPUT
 78  
 79  buzzer = pwmio.PWMOut(board.SPEAKER, variable_frequency=True)
 80  buzzer.frequency = 1000
 81  
 82  sense_pin = board.P1
 83  analog = AnalogIn(board.P1)
 84  
 85  
 86  def read_and_average(ain, times, wait):
 87      asum = 0
 88      for _ in range(times):
 89          asum += ain.value
 90          time.sleep(wait)
 91      return asum / times
 92  
 93  
 94  time.sleep(5)
 95  
 96  while True:
 97      # take 100 readings and average them
 98      aval = read_and_average(analog, 100, 0.01)
 99      # calculate a percentage (aval ranges from 0 to 65535)
100      aperc = aval / 65535 * 100
101      # display the percentage
102      soil_label.text = "Soil: {} %".format(int(aperc))
103      print((aval, aperc))
104  
105      if aperc < moist_level:
106          happy_plant_sprite.x = 300  # move the happy sprite away
107          time.sleep(1)
108          motor.value = True
109          motor_label.text = "Motor ON"
110          motor_label.color = 0x00FF00
111          buzzer.duty_cycle = 2 ** 15
112          time.sleep(0.5)
113  
114      # always turn off quickly
115      motor.value = False
116      motor_label.text = "Motor off"
117      motor_label.color = 0xFF0000
118      buzzer.duty_cycle = 0
119  
120      if aperc >= moist_level:
121          happy_plant_sprite.x = 0  # bring back the happy sprite