User Manual

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.

Standard Servo Code

Here's an example that will sweep a servo connected to pin A2 from 0 degrees to 180 degrees (-90 to 90 degrees)

and back:

Continuous Servo Code

There are two differences with Continuous Servos vs. Standard Servos:

1. The servo object is created like my_servo = servo.ContinuousServo(pwm) instead of my_servo =

servo.Servo(pwm)

2. Instead of using myservo.angle , you use my_servo.throttle using a throttle value from 1.0 (full on) to 0.0

(stopped) to -1.0 (full reverse). Any number between would be a partial speed forward (positive) or reverse

(negative). This is very similar to standard DC motor control with the adafruit_motor library.

This example runs full forward for 2 seconds, stops for 2 seconds, runs full reverse for 2 seconds, then stops for 4

seconds.

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)