Object / Distance Sensor Modules

Introduction

Ultrasonic Sensor-1000x1000This ultrasonic distance sensor provides stable & accurate distance measurements. This module designed with very highly reliable ultrasonic transducer pair. It works on 40 KHz frequency and is highly suitable for making different types sensors for measuring distances & detecting obstacles.

Connect the VCC & ground pins to the supply. Connect trigger input pin (Trig) pin to a digital output & echo (Echo) pin to a digital input of microcontroller. Pulse the Trig pin high for at least 10us and then wait for a high level on the Echo pin. The amount of time it takes to receive the echo corresponds to the distance that the ultrasonic sound has traveled.

This sensor uses ultrasonic sound to measure distance just like bats & dolphins. The Sensor has two main parts transmitter & receiver. Transmitter generates ultrasonic sound and receiver receives its echo from any object in its way.

Sound travels at approximately 340 meters/Second. This provides 29.412us for each 1 cm distance. Formula to measure distance is as following.

D = (T * S) / 2

Where

D = Distance

T = Time

S = Speed of Sound

Circuit Specification

  • Supply Voltage – 5 V DC
  • Maximum Current – 20 mA
  • Output voltage  – TTL Level
  • Range – 2 cm to 450 cm
  • Accuracy – 2 mm
  • Focus – 15 Degree

PIN No

          PIN Information
VCC Supply + 5V
Trig Trigger (Input)
Echo Sound Echo (Output)
GND Supply  Ground

Features

  • Accurate distance measurement or obstacle sensing
  • TTL level compatible (Directly connection to Microcontroller)
  • TRIG & Echo signal for easy communication
  • High quality PCB material & original component only
  • Each module tested with automatic testing machine

Applications

  • Robotics Systems
  • Automotive Domain
  • Security & Surveillance
  • Smart Home System
  • Industrial Control System

For more info visit us at : www.nrdcentre.com

Introduction

PIR-1000x1000PIR sensors allow you to sense motion, almost always used to detect whether a human has moved in or out of the sensors range. They are small, inexpensive, low-power, easy to use and don’t wear out. For that reason they are commonly found in appliances and gadgets used in homes or businesses. They are often referred to as PIR, “Passive Infrared”, “Pyroelectric”, or “IR motion” sensors.

PIRs are basically made of a Pyroelectric sensor which can detect levels of infrared radiation. Everything emits some low level radiation, and the hotter something is, the more radiation is emitted. The sensor in a motion detector is actually split in two halves. The reason for that is that we are looking to detect motion (change) not average IR levels. The two halves are wired up so that they cancel each other out. If one half sees more or less IR radiation than the other, the output will swing high or low. At their output we will found Level change if difference occurs.

Circuit Specification

  • Supply Voltage – 3V to 5 V DC
  • Drain Current –  <50 uA
  • Output voltage  – TTL Level (0 to 3.3V)
  • Range – 2 to 3 Meter
  • Setting Time –  60 Second

PIN No

          PIN Information

VCC Supply + 5V
SIG Output Signal (TTL Level)
GND Supply Ground

Features

  • Less setting time
  • Low noise & highly stable
  • TTL level compatible (Directly connection to Microcontroller)
  • High quality PCB material & original component only
  • Each module tested with automatic testing machine

Applications

  • Robotics Systems
  • Automotive Domain
  • Security & Surveillance
  • Smart Home System
  • Industrial Control System

For more info visit us at : www.nrdcentre.com