User Manual

running to off or vice versa.

CircuitPython Code For "Theremin" demo

We can adapt the code above to speed up or slow down the motor based on how far our hand is. The darker the

sensor, the faster the motor spins!

import time

from busio import I2C

import analogio

from adafruit_seesaw.seesaw import Seesaw

from adafruit_seesaw.pwmout import PWMOut

from adafruit_motor import motor

import board

light = analogio.AnalogIn(board.LIGHT)

print("Wave on/off to turn")

# Create seesaw object

i2c = I2C(board.SCL, board.SDA)

seesaw = Seesaw(i2c)

# Create one motor on seesaw PWM pins 22 & 23

motor_a = motor.DCMotor(PWMOut(seesaw, 22), PWMOut(seesaw, 23))

motor_a.throttle = 0 # motor is stopped

while True:

print((light.value,))

# light value drops when a hand passes over

if light.value < 4000:

if motor_a.throttle:

motor_a.throttle = 0

else:

motor_a.throttle = 1 # full speed forward

while light.value < 5000:

# wait till hand passes over completely

pass

time.sleep(0.1)

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