Adafruit Feather M4 Express

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For the Metro M4 Express, ItsyBitsy M4 Express and

the Feather M4 Express, connect the ground wire to

any G or GND, the power wire to USB or 5V, and the

signal wire to A1.

Servo Code

Here's an example that will sweep a servo connected to pin A2 from 0 degrees to 180 degrees and back:

Pretty simple!

Note that we assume that 0 degrees is 0.5ms and 180 degrees is a pulse width of 2.5ms. That's a bit wider than

the

official

1-2ms pulse widths. If you have a servo that has a different range you can initialize the servo object with a

different min_pulse and max_pulse . For example:

servo = adafruit_motor.servo.Servo(pwm, min_pulse = 0.5, max_pulse = 2.5)

For more detailed information on using servos with CircuitPython, check out the CircuitPython section of the servo

guide (https://adafru.it/Bei)!

import time

import board

import pulseio

from adafruit_motor import servo

# create a PWMOut object on Pin A2.

pwm = pulseio.PWMOut(board.A2, duty_cycle=2 ** 15, frequency=50)

# Create a servo object, my_servo.

my_servo = servo.Servo(pwm)

while True:

for angle in range(0, 180, 5): # 0 - 180 degrees, 5 degrees at a time.

my_servo.angle = angle

time.sleep(0.05)

for angle in range(180, 0, -5): # 180 - 0 degrees, 5 degrees at a time.

my_servo.angle = angle

time.sleep(0.05)

Adafruit Feather M4 Express - Page 122