72 lines
1.7 KiB
Python
72 lines
1.7 KiB
Python
# SPDX-FileCopyrightText: 2023 Limor Fried for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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import time
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import board
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from micropython import const
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from adafruit_seesaw.seesaw import Seesaw
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BUTTON_1 = const(3)
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BUTTON_2 = const(13)
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BUTTON_3 = const(2)
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BUTTON_4 = const(14)
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JOY1_X = const(1)
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JOY1_Y = const(15)
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JOY2_X = const(0)
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JOY2_Y = const(16)
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button_mask = const((1 << BUTTON_1) | (1 << BUTTON_2) | (1 << BUTTON_3) | (1 << BUTTON_4))
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i2c_bus = board.STEMMA_I2C() # The built-in STEMMA QT connector on the microcontroller
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# i2c_bus = board.I2C() # Uses board.SCL and board.SDA. Use with breadboard.
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seesaw = Seesaw(i2c_bus, addr=0x49)
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seesaw.pin_mode_bulk(button_mask, seesaw.INPUT_PULLUP)
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last_x = 0
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last_y = 0
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x = 0
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y = 0
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while True:
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# These joysticks are really jittery so let's take 4 samples of each axis
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for i in range(4):
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x += seesaw.analog_read(JOY1_X)
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y += seesaw.analog_read(JOY1_Y)
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# take average reading
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x /= 4
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y /= 4
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# PC joysticks aren't true voltage divider because we have a fixed 10K
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# we dont know the normalized value so we're just going to give you
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# the result in 'Kohms' for easier printing
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x = 1024 / x - 1
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y = 1024 / y - 1
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if (abs(x - last_x) > 3) or (abs(y - last_y) > 3):
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print(x, y)
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last_x = x
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last_y = y
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buttons = seesaw.digital_read_bulk(button_mask)
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if not buttons & (1 << BUTTON_1):
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print("Button 1 pressed")
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if not buttons & (1 << BUTTON_2):
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print("Button 2 pressed")
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if not buttons & (1 << BUTTON_3):
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print("Button 3 pressed")
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if not buttons & (1 << BUTTON_4):
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print("Button 4 pressed")
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time.sleep(0.01)
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