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Sensor Expansion Shield V5.0 for Arduino Uno MEGA Servo Module Board

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Description

🧩 Sensor Expansion Shield V5.0 for Arduino Uno & MEGA – Stackable I/O & Servo Expansion Board | AuscomTech

The Sensor Expansion Shield V5.0 is a practical and beginner-friendly I/O expansion board designed to simplify connecting sensors, modules, and servo motors to Arduino development boards.
By converting Arduino pin headers into easy-access 3-pin interfaces (Signal / VCC / GND), this shield dramatically reduces wiring complexity and speeds up prototyping.

Its stackable design allows it to be used alongside other Arduino shields, making it ideal for robotics, automation, and modular electronics projects.

⭐ Key Features

🔌 Plug-and-Play Sensor Connections
Each I/O pin is broken out into a standard 3-pin header, allowing direct connection of common sensor modules without jumper wire confusion.

🧱 Stackable Shield Design
Fully stackable with other Arduino shields for multi-layer project builds.

🦾 Direct Servo Motor Support
Provides dedicated 3-pin headers suitable for standard RC servo motors used in robotics and motion projects.

🧠 Optimised Pin Layout
Digital and analog pins are arranged clearly to match Arduino pin numbering for quick identification.

🛠️ Durable PCB Construction
Manufactured with solid PCB material for reliable connections and long-term use.

🔄 Beginner & Education Friendly
Ideal for students, STEM education, rapid prototyping, and hobby electronics.

📊 Technical Specifications

Specification Details
Product Version Sensor Expansion Shield V5.0
Compatible Boards Arduino Uno, Arduino MEGA (pin compatible)
Interface Type 3-Pin (Signal / VCC / GND)
Servo Support Yes (direct connection)
Stackable Yes
Material PCB + plastic headers
Colour Blue / Silver
Weight ~30 g

🧩 Compatible With

• Arduino Uno
• Arduino MEGA
• Common Arduino sensor modules
• RC servo motors
• Ultrasonic, IR, temperature, humidity sensors
• Robotics and automation modules

🔧 Typical Applications

• Robotics and smart car projects
• Servo-based motion control
• Sensor testing and prototyping
• STEM education kits
• Home automation experiments
• Rapid Arduino project development

⚠️ Usage Notes

• Uses Arduino’s onboard power rails — ensure power limits are not exceeded
• Suitable for low-current sensors and servo motors
• External power recommended for multiple or high-load servos

📦 Package Includes

• 1 × Sensor Expansion Shield V5.0 for Arduino

📌 Code Examples & Usage – Sensor Shield V5.0 (Arduino Expansion Board)

📋 Overview

The Sensor Shield V5.0 provides:

  • Multiple servo headers (GND, VCC, PWM)

  • Digital I/O expansion

  • Analog input expansion

  • Power rail terminals

  • Standard Grove / 3-pin 3.3/5V compatible sockets

This makes it ideal for:

✔ Robot kits
✔ Arduino Uno / Mega I/O expansion
✔ Plug-and-play sensor prototyping
✔ Servo control for arms, wheels, gimbals

It does not change how you code — it simply makes wiring easy.

🔌 Hardware: Pin Mappings

Servo Headers

Each header has:

  • GND

  • VCC (5 V or 3.3 V depending on jumper selection)

  • SIG (PWM / signal)

You can plug servos directly onto these headers.

Sensor Ports

Each port typically gives you:

  • Digital — D2, D3, D4, etc.

  • Analog — A0, A1, A2, etc.

  • Power — 5 V / 3.3 V and GND

Tip: M shield labels are usually famous for being consistent across boards.

🧪 Example 1 — Connect & Sweep a Servo

Wiring:
Sensor Shield → Servo Motor → Plug into Servo1 header
Servo signal pin goes to the shield’s PWM pin (e.g., D9).

#include <Servo.h>

Servo myServo;

void setup() {
myServo.attach(9); // D9 on shield
}

void loop() {
for (int pos = 0; pos <= 180; pos += 1) {
myServo.write(pos);
delay(15);
}
for (int pos = 180; pos >= 0; pos -= 1) {
myServo.write(pos);
delay(15);
}
}

🧪 Example 2 — Read an Analog Sensor (e.g., Potentiometer)

Wiring:
Pot → A0 port on Sensor Shield
(gives 0–5 V analog reading)

void setup() {
Serial.begin(9600);
}void loop() {
int raw = analogRead(A0);
float voltage = raw * (5.0 / 1023.0);
Serial.print(“Analog A0: “);
Serial.print(raw);
Serial.print(” (“);
Serial.print(voltage, 2);
Serial.println(” V)”);
delay(200);
}

🧪 Example 3 — Digital Read from a Button

Wiring:
Pushbutton → Digital port (e.g., D2)
Pull-down resistor or use INPUT_PULLUP

const int btnPin = 2;

void setup() {
pinMode(btnPin, INPUT_PULLUP);
Serial.begin(9600);
}

void loop() {
int state = digitalRead(btnPin);
Serial.print(“Button: “);
Serial.println(state == LOW ? “Pressed” : “Released”);
delay(100);
}

🧪 Example 4 — Digital Output (LED)

Wiring:
LED + resistor → D3 on Sensor Shield

const int ledPin = 3;

void setup() {
pinMode(ledPin, OUTPUT);
}

void loop() {
digitalWrite(ledPin, HIGH);
delay(500);
digitalWrite(ledPin, LOW);
delay(500);
}

⚡ Example 5 — I²C Device (e.g., OLED Display)

If your shield brings out SDA / SCL (many do), you can use I²C displays and sensors.

#include <Wire.h>
#include <Adafruit_GFX.h>
#include <Adafruit_SSD1306.h>#define SCREEN_WIDTH 128
#define SCREEN_HEIGHT 32
#define OLED_RESET -1
Adafruit_SSD1306 display(SCREEN_WIDTH, SCREEN_HEIGHT, &Wire, OLED_RESET);

void setup() {
Wire.begin(); // shield provides SDA/SCL
display.begin(SSD1306_SWITCHCAPVCC, 0x3C);
display.clearDisplay();
display.setTextSize(1);
display.setTextColor(SSD1306_WHITE);
display.setCursor(0,0);
display.println(“Hello from Sensor Shield!”);
display.display();
}

void loop() {}

🧠 Quick Pin Reference (Typical)

Shield Label Arduino Pin
D2 Digital 2
D3 Digital 3
D4 Digital 4
D5 Digital 5
A0 Analog 0
A1 Analog 1
A2 Analog 2
SDA / SCL I²C bus (A4/A5 on Uno, SDA/SCL on Mega)

(Your actual shield may label slightly differently — a pinout diagram helps!)

🧠 Notes & Best Practices

✔ Jumper selection: Many Sensor Shields have jumpers to switch servo power between 5 V and 3.3 V — match your device.
✔ Servo current: Standard servos can draw >500 mA — use a separate 5 V supply and common ground with Arduino.
✔ I²C bus: You can chain I²C sensors & displays — make sure addresses don’t clash.
✔ Shield stacking: This board is stackable, but keep sensor lines short to reduce noise.

Additional information

Weight 50 g
Dimensions 260 × 160 × 20 mm

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