Datasheet

ManualsBrandsAdafruit ManualsAdafruitItsyBitsy nRF52840 Express Development Board with Bluetooth

151

152

153

154

155

156

157

158

159

160

select.direction = digitalio.Direction.INPUT

select.pull = digitalio.Pull.UP

pot_min = 0.00

pot_max = 3.29

step = (pot_max - pot_min) / 20.0

def get_voltage(pin):

return (pin.value * 3.3) / 65536

def steps(axis):

""" Maps the potentiometer voltage range to 0-20 """

return round((axis - pot_min) / step)

while True:

x = get_voltage(x_axis)

y = get_voltage(y_axis)

if select.value is False:

mouse.click(Mouse.LEFT_BUTTON)

time.sleep(0.2) # Debounce delay

if steps(x) > 11.0:

# print(steps(x))

mouse.move(x=1)

if steps(x) < 9.0:

# print(steps(x))

mouse.move(x=-1)

if steps(x) > 19.0:

# print(steps(x))

mouse.move(x=8)

if steps(x) < 1.0:

# print(steps(x))

mouse.move(x=-8)

if steps(y) > 11.0:

# print(steps(y))

mouse.move(y=-1)

if steps(y) < 9.0:

# print(steps(y))

mouse.move(y=1)

if steps(y) > 19.0:

# print(steps(y))

mouse.move(y=-8)

if steps(y) < 1.0:

# print(steps(y))

mouse.move(y=8)

For this example, we've wired up a 2-axis thumb joystick with a select button. We use this to emulate the mouse

movement and the mouse left-button click. To wire up this joytick:

Connect VCC on the joystick to the 3V on your board. Connect ground to ground.

Connect Xout on the joystick to pin A0 on your board.