Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch Documentation

Component Name

Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch

Overview

The Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch is a compact and versatile switch designed for use in various Internet of Things (IoT) applications, industrial automation, and robotics. This limit switch features a momentary action, single-pole double-throw (SPDT) configuration, and a compact plastic housing with a 15mm lever arm.

Functionality

The primary function of this limit switch is to detect physical changes or movements in its environment and respond by opening or closing an electrical circuit. When the 15mm lever arm is actuated, the switch momentarily changes its state, allowing the circuit to either connect or disconnect. This momentary action enables the switch to transmit a signal to a microcontroller, PLC, or other control systems, triggering a specific response or action.

Key Features

Electrical Ratings:

Voltage

250V AC/DC

Current

6A

Switch Configuration:

Single-Pole Double-Throw (SPDT)

Normally Open (NO) and Normally Closed (NC) contacts

Actuation Type:

Momentary action

Lever Arm:

Length

15mm

Durable and flexible design for reliable operation

Housing Material:

High-quality plastic for durability and resistance to environmental factors

Pin Configuration:

3-pin design for easy integration into various systems

Operating Temperatures:

Pin 1	Common (COM)
Pin 2	Normally Open (NO)
Pin 3	Normally Closed (NC)

-20C to 80C (-4F to 176F)

Dimensions:

Compact design with a small footprint for easy installation

Application Areas

Industrial Automation: Monitoring and controlling industrial equipment, robots, and machinery.
Internet of Things (IoT) Projects: Sensors, actuators, and control systems for smart home, building automation, and wearables.
Robotics: Detecting and responding to physical changes in robotic arms, grippers, and end-effectors.
Medical Devices: Monitoring and controlling medical equipment, such as hospital beds, surgical tables, and prosthetics.

Certifications and Standards

Meets relevant international standards for safety and reliability

Complies with RoHS and CE directives

Packaging

Individual or bulk packaging available

Lead Time

Typically 2-3 weeks for standard orders

MOQ (Minimum Order Quantity)

100 pieces

Warranty and Support

1-year limited warranty

Dedicated technical support team for troubleshooting and application guidance

By integrating the Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch into your design, you can create reliable and efficient systems that respond accurately to physical changes and movements.

Pin Configuration

Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch Documentation
Pinouts and Connection Guide
The Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch has three pins, which are explained below:
Pin 1: Common (COM) Pin
Function: Acts as the common terminal for the normally open (NO) and normally closed (NC) contacts.
Connection:
+ Connect to the power source (e.g., VCC) or the common point of the circuit.
+ This pin is usually connected to the microcontroller's digital input or the power supply's positive terminal.
Pin 2: Normally Open (NO) Pin
Function: Connects to the common pin (Pin 1) when the lever is pressed (momentary action).
Connection:
+ Connect to the output device or the microcontroller's digital output.
+ When the lever is pressed, this pin connects to the common pin, allowing the circuit to switch on.
Pin 3: Normally Closed (NC) Pin
Function: Connects to the common pin (Pin 1) when the lever is not pressed (normal state).
Connection:
+ Connect to the output device or the microcontroller's digital output.
+ When the lever is not pressed, this pin connects to the common pin, allowing the circuit to switch off.
Connection Structure:
Here's a step-by-step connection guide:
1. Connect Pin 1 (COM) to the power source (VCC) or the common point of the circuit.
2. Connect Pin 2 (NO) to the output device or the microcontroller's digital output.
3. Connect Pin 3 (NC) to the output device or the microcontroller's digital output.
Example Connection Diagram:
```
+---------------+
| Power Source |
| (VCC) |
+---------------+
|
|
v
+---------------+
| Limit Switch |
| (3-Pin) |
+---------------+
|
|
v
+---------------+ +---------------+
| Pin 1 (COM) | | Pin 2 (NO) |
| | | |
| connects to | | connects to |
| VCC or common| | output device |
+---------------+ +---------------+
| |
| |
v v
+---------------+ +---------------+
| Pin 3 (NC) | | Output Device |
| | | |
| connects to | | (e.g., LED) |
| output device | | |
+---------------+ +---------------+
```
Note:
When the lever is pressed, Pin 2 (NO) connects to Pin 1 (COM), allowing the circuit to switch on.
When the lever is not pressed, Pin 3 (NC) connects to Pin 1 (COM), allowing the circuit to switch off.
Please ensure proper connection and handling of the limit switch to avoid damage or electrical shock.

Code Examples

Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch Documentation

Overview

The Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch is a compact, rugged, and versatile limit switch designed for use in various applications, including industrial control systems, robotics, and IoT projects. This switch features a 15mm arm lever, 250V 6A SPDT (Single Pole Double Throw) contacts, and a momentary action type, making it suitable for detecting and actuating various machines, mechanisms, and devices.

Pinout and Connections

The switch has three pins:

Pin 1: Common (C)
 Pin 2: Normally Open (NO)
 Pin 3: Normally Closed (NC)

Code Examples

### Example 1: Basic On/Off Control Using Arduino

In this example, we'll use the Arm Lever switch to control an LED connected to an Arduino board.

```c++
const int ledPin = 13;  // choose the pin for the LED
const int switchPin = 2;  // choose the input pin for the switch

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

void loop() {
  int switchState = digitalRead(switchPin);
  if (switchState == HIGH) {
    digitalWrite(ledPin, HIGH);  // turn the LED on
  } else {
    digitalWrite(ledPin, LOW);  // turn the LED off
  }
  delay(50);
}
```

### Example 2: Debouncing and Counting with Raspberry Pi (Python)

In this example, we'll use the Arm Lever switch to count the number of times it's activated, while debouncing the switch to prevent false triggers. We'll use a Raspberry Pi and Python.

```python
import RPi.GPIO as GPIO
import time

GPIO.setmode(GPIO.BCM)
switch_pin = 17  # choose the input pin for the switch
GPIO.setup(switch_pin, GPIO.IN, pull_up_down=GPIO.PUD_UP)

count = 0
last_state = False
debounce_time = 50  # debounce time in ms

while True:
    current_state = GPIO.input(switch_pin)
    if current_state != last_state:
        if not current_state:  # switch is activated
            count += 1
            print("Switch activated! Count:", count)
        last_state = current_state
        time.sleep(debounce_time / 1000)  # debounce delay
```

Important Notes

Make sure to use the correct voltage and current ratings for the switch and connected devices.
 Use proper debouncing techniques to prevent false triggers and ensure reliable operation.
 Follow proper safety guidelines when working with electrical systems.

I hope this documentation helps you get started with using the Arm Lever 15mm, 250V 6A SPDT 3-Pin Momentary Plastic Micro Limit Switch in your projects!

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