Here are some example programs and a place to try them out; see also the reference manual.

## 8.1.2. Vary the brightness of the LED¶

Shake your device to make the LED light up!

import cellbotics

# Define the pin numbers we need.
LED1 = 2

# Select a PWM channel and configure the LED for PWM.
channel = 0
cb = cellbotics.CellBot()
cb.ledcSetup(channel, 1000, 16)
cb.ledcAttachPin(LED1, channel)

# Start the gyro.
gyro = cellbotics.Gyroscope()
gyro.start()

# Read the gyro and display it on the LED.
for i in range(20):
gyro_x2 = gyro.x**2
cb.ledcWrite(channel, min(2**16 - 1, gyro_x2*10000))
print(gyro_x2)