Pan and Tilt Shield

The Pan and Tilt Shield gives the OpenMV Cam three servo channels with an NCP1117 5 V linear regulator that powers both the camera and the servos from a single 6.5–18 V battery input.

Pan and Tilt Shield

For full datasheet, photos, and ordering see the Pan and Tilt Shield product page.

Highlights

  • Three independent servo channels

  • Stacks with the Servo Shield

Pinout

Pan and Tilt Shield Pinout

Pin reference

Pin

Function

P7

Servo 0 (S0)

P8

Servo 1 (S1)

P9

Servo 2 (S2)

VBAT in

6.5–18 V battery input on the screw terminal (NCP1117 limits)

VIN out

5 V regulated from the on-board NCP1117 — powers both the camera and the servo rail

GND rail

Servo and camera common ground

Usage

Drive the three servo channels with 50 Hz PWM. The pulse-width range varies between servos, so tune MIN_US and MAX_US to match yours — typical values are around 1000–2000 µs:

from machine import Pin, PWM
import time

MIN_US = 1000  # full-left pulse width (microseconds)
MAX_US = 2000  # full-right pulse width

pan = PWM(Pin("P7"), freq=50)  # S0
tilt = PWM(Pin("P8"), freq=50)  # S1
aux = PWM(Pin("P9"), freq=50)  # S2

def angle(servo, deg):
    pulse_us = MIN_US + (deg * (MAX_US - MIN_US)) // 180
    servo.duty_ns(pulse_us * 1000)

while True:
    angle(pan, 0)
    angle(tilt, 90)
    time.sleep(1)
    angle(pan, 180)
    angle(tilt, 45)
    time.sleep(1)