IoT Sensors and Devices by Technical Spots - TECHNICAL SPOT



Tuesday, January 7, 2020

IoT Sensors and Devices by Technical Spots

IoT 4 step architecture are ( IoT Sensors Definition, IoT Sensors Tutorial, List of Sensors, Which devices collect data from sensors IoT,  Sensors used in home Appliance) by Technical Spots

·      Sensor
·      Data Acquistion System
·      Pre-Processing , EDGE Analysis
·      Cloud Analysis

Last Blog I told the basic definition of IoT, Today we know the details about IoT architecture .

IoT Sensor :- 

A sensor is a gadget which distinguishes, measures and reacts to some kind of contribution from the physical condition.

Some popular sensors we used more time in IoT

DHT11 :- This sensor commonly used for measure Temperature and Humidity.
IoT  Sensors and Devices

DHT11 Specifications

  • Working Voltage: 3.5V to 5.5V 
  • Working current: 0.3mA (estimating) 60uA (backup) 
  • Yield: Serial information 
  • Temperature Range: 0°C to 50°C 
  • Dampness Range: 20% to 90% 
  • Goals: Temperature and Humidity both are 16-piece 
  • Exactness: ±1°C and ±1%

Ultrasonic Sensor :- This sensor is an instrument that estimates the separation to an article utilizing ultrasonic sound waves.

IoT  Sensors and Devices

IoT  Sensors and Devices

Ultrasonic sensors work by conveying a sound wave at a recurrence over the scope of human hearing. The transducer of the sensor goes about as a receiver to get and send the ultrasonic sound. Our Ultrasonic sensors, in the same way as other others, utilize a solitary transducer to send a heartbeat and to get the reverberation. The sensor decides the separation to an objective by estimating time slips by between the sending and getting of the ultrasonic heartbeat.

HC-SR04 Sensor Features

  • Working voltage: +5V 
  • Hypothetical Measuring Distance: 2cm to 450cm 
  • Down to earth Measuring Distance: 2cm to 80cm 
  • Precision: 3mm 
  • Estimating edge secured: <15° 
  • Working Current: <15mA 
  • Working Frequency: 40Hz
HC-SR505 PIR Sensor :-HC-SR505 is scaled down PIR (Passive Infra Red) movement sensor module, which as the name infers utilized for recognizing the movement of a body before it. The gadget works dependent on infrared innovation and it would automatic be able to control without anyone else's input with high affectability and high unwavering quality. As a result of the base estimate and low-power activity mode, it broadly utilized in battery-fueled applications.
IoT  Sensors and Devices

HC-SR505 Features and Electrical characteristics

  • Wide scope of working voltage 
  • Least size 
  • Repeatable trigger 
  • Low force utilization 
  • Programmed control 
  • Trigger: reusable trigger of course 
  • Detecting separation: 3 meters 
  • Sensor focal point measurements: breadth 10mm 
  • Working voltage extend: +4.5V to +20V 
  • Most extreme working voltage: +20V 
  • Working temperature go: - 20ºC to 80ºC 
  • Quiet current: <60µA 
  • Acceptance point: <100 degrees cone edge


  • Motion alarm
  • Automatic lighting system
  • Theft protection
  • Staircase lighting system
  • Hobby projects

MQ-3 Alcohol Gas Sensor :- 

IoT  Sensors and Devices

Features of MQ-3 Alcohol Sensor

  • Sensor Type - Semiconductor 
  • Simple SIP header interface 
  • Good with the vast majority of the microcontrollers 
  • Low-power reserve mode 
  • Requires radiator voltage 
  • Great affectability to liquor gas 
  • Quick reaction and High affectability 
  • Long life and ease 
  • Requires straightforward Drive circuit

Pulse Sensor :-

IoT  Sensors and Devices

IoT  Sensors and Devices


  • Biometric Pulse Rate or Heart Rate recognizing sensor 
  • Attachment and Play type sensor 
  • Working Voltage: +5V or +3.3V 
  • Current Consumption: 4mA 
  • Inbuilt Amplification and Noise crossing out circuit. 
  • Measurement: 0.625" 
  • Thickness: 0.125" Thick
Today we know about some sensors next we will know about IoT Data Acquistion System... Thank You..

Reference by COMPONENTS101.COM

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