Merge pull request #652 from adafruit/Capacitive_Touch_Sensors_on_the_Raspberry_Pi

Capacitive touch sensors on the raspberry pi

Author: ladyada

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/5pad-sensor-wiring-40-pin.fzz

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+import time
+import board
+from digitalio import DigitalInOut, Direction
+
+# set the GPIO input pins
+pad0_pin = board.D22
+pad1_pin = board.D21
+pad2_pin = board.D17
+pad3_pin = board.D24
+pad4_pin = board.D23
+
+pad0 = DigitalInOut(pad0_pin)
+pad1 = DigitalInOut(pad1_pin)
+pad2 = DigitalInOut(pad2_pin)
+pad3 = DigitalInOut(pad3_pin)
+pad4 = DigitalInOut(pad4_pin)
+
+pad0.direction = Direction.INPUT
+pad1.direction = Direction.INPUT
+pad2.direction = Direction.INPUT
+pad3.direction = Direction.INPUT
+pad4.direction = Direction.INPUT
+
+pad0_already_pressed = True
+pad1_already_pressed = True
+pad2_already_pressed = True
+pad3_already_pressed = True
+pad4_already_pressed = True
+
+while True:
+
+    if pad0.value and not pad0_already_pressed:
+        print("Pad 0 pressed")
+    pad0_already_pressed = pad0.value
+
+    if pad1.value and not pad1_already_pressed:
+        print("Pad 1 pressed")
+    pad1_already_pressed = pad1.value
+
+    if pad2.value and not pad2_already_pressed:
+        print("Pad 2 pressed")
+    pad2_already_pressed = pad2.value
+
+    if pad3.value and not pad3_already_pressed:
+        print("Pad 3 pressed")
+    pad3_already_pressed = pad3.value
+
+    if pad4.value and not pad4_already_pressed:
+        print("Pad 4 pressed")
+    pad4_already_pressed = pad4.value
+
+    time.sleep(0.1)

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/5pad.py

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+import time
+import board
+from digitalio import DigitalInOut, Direction
+
+pad_pin = board.D23
+
+pad = DigitalInOut(pad_pin)
+pad.direction = Direction.INPUT
+
+while True:
+
+    if pad.value:
+        print("pressed")
+
+    time.sleep(0.1)

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/Continuous_Output.py

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+import time
+import board
+import mcpi.minecraft as minecraft
+from digitalio import DigitalInOut, Direction
+mc = minecraft.Minecraft.create()
+
+# set the GPIO input pins
+pad0_pin = board.D22
+pad1_pin = board.D21
+pad2_pin = board.D17
+pad3_pin = board.D24
+pad4_pin = board.D23
+
+pad0 = DigitalInOut(pad0_pin)
+pad1 = DigitalInOut(pad1_pin)
+pad2 = DigitalInOut(pad2_pin)
+pad3 = DigitalInOut(pad3_pin)
+pad4 = DigitalInOut(pad4_pin)
+
+pad0.direction = Direction.INPUT
+pad1.direction = Direction.INPUT
+pad2.direction = Direction.INPUT
+pad3.direction = Direction.INPUT
+pad4.direction = Direction.INPUT
+
+pad0_already_pressed = False
+pad3_already_pressed = False
+pad4_already_pressed = False
+
+immutable = False
+
+tnt = 46
+water = 9
+flowers = 38
+
+while True:
+    pad0_pressed = not pad0.value
+    pad1_pressed = not pad1.value
+    pad2_pressed = not pad2.value
+    pad3_pressed = not pad3.value
+    pad4_pressed = not pad4.value
+
+    if pad0_pressed and not pad0_already_pressed:
+        #teleport
+        x = 0
+        y = 0
+        z = 0
+        mc.player.setPos(x, y, z)
+    pad0_already_pressed = pad0_pressed
+
+    if pad1_pressed:
+        #Flowers
+        pos = mc.player.getPos()
+        x = pos.x
+        y = pos.y
+        z = pos.z
+        mc.setBlock(x, y, z, flowers)
+
+    if pad2_pressed:
+        #TNT
+        pos = mc.player.getPos()
+        x = pos.x
+        y = pos.y
+        z = pos.z
+        mc.setBlock(x, y, z, tnt, 1)
+
+    if pad3_pressed and not pad3_already_pressed:
+        #Chat message: Are in water?
+        pos = mc.player.getPos()
+        block = mc.getBlock(pos.x, pos.y, pos.z)
+        inWater = block == water
+        mc.postToChat("In water: " + str(inWater))
+    pad3_already_pressed = pad3_pressed
+
+    if pad4_pressed and not pad4_already_pressed:
+        #Immutable
+        immutable = not immutable
+        mc.setting("world_immutable", immutable)
+        mc.postToChat("Immutable: " + str(immutable))
+    pad4_already_pressed = pad4_pressed
+
+    time.sleep(0.1)

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/MC-5pad.py

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+import time
+import board
+import mcpi.minecraft as minecraft
+from digitalio import DigitalInOut, Direction
+
+mc = minecraft.Minecraft.create()
+
+pad_pin = board.D23
+
+pad = DigitalInOut(pad_pin)
+pad.direction = Direction.INPUT
+
+# melon block
+block_type = 103
+
+while True:
+
+    if pad.value:
+        pos = mc.player.getPos()
+        x = pos.x
+        y = pos.y
+        z = pos.z
+        mc.setBlock(x, y, z, block_type)
+
+    time.sleep(0.1)

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/MC-Melons.py

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+import time
+import board
+import mcpi.minecraft as minecraft
+from digitalio import DigitalInOut, Direction
+
+mc = minecraft.Minecraft.create()
+
+pad_pin = board.D23
+pad = DigitalInOut(pad_pin)
+pad.direction = Direction.INPUT
+
+already_pressed = False
+
+while True:
+
+    if pad.value and not already_pressed:
+        pos = mc.player.getPos()
+        x = pos.x
+        y = pos.y + 10
+        z = pos.z
+        mc.player.setPos(x, y, z)
+    alreadyPressed = pad.value
+    time.sleep(0.1)

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/MC-Super_Jump.py

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+# Capacitive_Touch_Sensors_on_the_Raspberry_Pi
+
+Code to accompany this tutorial:
+https://learn.adafruit.com/capacitive-touch-sensors-on-the-raspberry-pi

Capacitive_Touch_Sensors_on_the_Raspberry_Pi/README.md

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+import time
+import board
+from digitalio import DigitalInOut, Direction
+
+pad_pin = board.D23
+
+pad = DigitalInOut(pad_pin)
+pad.direction = Direction.INPUT
+
+already_pressed = False
+
+while True:
+
+    if pad.value and not already_pressed:
+        print("pressed")
+
+    already_pressed = pad.value
+    time.sleep(0.1)