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Reference: 0984

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Choose your desire Resistor value from below: 

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3 Types Available (Please select from option) 1. Male to Male  2. Male to Female 3. Female-Female

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Buzzer Quick view

Reference: 0766

Ohm (Ω) 1/4w Resistors - Pack of 5

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Price BDT 5
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5 mm Green LED (Pack of 5) Quick view

Reference: RBD-0768

5 mm Red LED (Pack of 5)

Size: 5mm Color: RED Head Shape: Round Lens Appearance: Transparent

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Reference: RBD-0761

Push Button Switch (2PIN)

Breadboard friendly Mounting Style: Through Hole Mounting Direction: Vertical

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Buzzer Quick view

Reference: RBD-0758

BC547 NPN Transistor

BC547 NPN DIP Transistor

Price BDT 4
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Reference: RBD-0351

MIFARE Classic 1K RFID NFC Smart Card 13.56MHz Printable

Contactless transmission of data and supply energy (no battery needed) Operating distance: Up to 100mm (depending on antenna geometry) RoboticsBD Operating frequency: 13.56MHz Data transfer: 106 kbit/s Data integrity: 16 Bit CRC, parity, bit coding bit counting Anticollision Typical ticketing transaction: <100 ms ( including backup management)...

Price BDT 33
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- BDT 101 On sale! Arduino Uno R3 (Made in Italy) Quick view

Reference: RBD-0094

Arduino Uno R3

Arduino UNO in Bangladesh Micro-controller : ATmega328. Operating Voltage : 5V. Input Voltage (recommended) : 7-12V. Digital I/O Pins : 14 (of which 6 provide PWM output). Analog Input Pins : 6.

Price BDT 999 Regular price BDT 1,100
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All best sellers

Ultrasonic Sonar Sensor HC- SR04

RBD-0022
  • Affordable Price
  • Operating Voltage: 5 V
  • Sonar Sensing Range: 2-400 cm
  • Max. Sensing Range: 450 cm
  • Frequency: 40 kHz RoboticsBD
BDT 100
rating Read the 125 reviews
Average rating: 5/5 - Number of reviews: 125
Quantity
In-Stock

  • Store Pickup Available! Store Pickup Available!
  • Free Ship Over 5000 BDT Free Ship Over 5000 BDT
  • Quality Product Quality Product
  • No Warranty No Warranty
  • No Replacement No Replacement
Description

This HC-SR04-Ultrasonic Range Finder is a very popular sensor that is found in many applications where it requires measuring distance and detecting objects.

The module has two eyes like projects in the front which forms the Ultrasonic transmitter and Receiver.  The HC-SR04 ultrasonic sensor uses sonar to determine the distance to an object like bats or dolphins do.

This Ultrasonic Sensor module is a transmitter, a receiver, and a control circuit in one single pack!! It has very handy and compact construction. It offers excellent range accuracy and stable readings in an easy-to-use package. Its operation is not affected by sunlight or black material like Sharp rangefinders are (although acoustically soft materials like cloth can be difficult to detect).

The Trigger and the Echo pins are the I/O pins of this module and hence they can be connected to the I/O pins of the microcontroller/Arduino. When the receiver detects the return wave the Echo pin goes high for a particular amount of time which will be equal to the time taken for the wave to return to the sensor. Featured By RoboticsBD.

Note: PCB might be different from the picture as per stock

Product Images are shown for illustrative purposes only and may differ from the actual product.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Ultrasonic Ranging Module HC-SR04 provides 2cm-400cm non-contact distance sensing capabilities, Ranging accuracy up to 3mm. RoboticsBD

Application :

  1. Obstacle avoidance: The HC-SR04 can be used in robotic applications to detect obstacles and avoid collisions.

  2. Distance measurement: The sensor can be used to measure the distance to an object for various applications, such as measuring the height of a surface or determining the distance between two points.

  3. Object detection: The HC-SR04 can be used to detect the presence of objects and trigger an action, such as turning on a light or opening a door.

  4. Navigation: The sensor can be used in navigation systems to determine the distance to an object and adjust the position or trajectory accordingly.

  5. Level detection: The HC-SR04 can be used in level detection applications, such as measuring the level of liquid in a container or determining the height of a surface.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Features :

  1. Measures the distance within a wide range of 2cm to 400cm
  2. Stable performance
  3. Accurate distance measurement
  4. High-density
  5. Small blind distance. RoboticsBD

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

General Specification
Model HC-SR04
Operating Voltage (VDC) 5
Average Current Consumption (mA) 2
Frequency(Hz) 40000
Sensing Angle 15°
Max. Sensing Distance (cm) 450
Weight (gm) 9
Sensor Cover Dia. (mm) 16
PCB Size ( L x W ) mm 45 x 20
Shipment Weight 0.014 kg
Shipment Dimensions 5 × 4 × 3 cm

Please allow 5% measuring deviation due to manual measurement.

RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD RoboticsBD

Documentation:

  1. Power supply: Ensure that the power supply used with the HC-SR04 is within the recommended voltage and current limits to avoid damaging the sensor.

  2. Environmental interference: The HC-SR04 may produce false readings if there is significant environmental interference, such as echoes from nearby surfaces or reflections from objects. Proper placement and shielding should be used to reduce these effects.

  3. Maximum range: The maximum range of the HC-SR04 is limited and the sensor may not produce accurate readings for objects beyond this range. Make sure to take this into consideration when using the sensor for distance measurement applications.

Package Includes:

1 x HC-SR04-Ultrasonic Range Finder

Product Details
RBD-0022
137 Items
Nice product
rating
29/01/2023
Musavvir Haque
Working Nicely
Rating
rating
27/01/2023
Shek yeakin
Good condition
Good
rating
09/01/2023
Labib
Very good
Good
rating
05/01/2023
Nazmul Haque Parthib

Worked as promised

Satisfying
rating
03/01/2023
Roni
Satisfying
Project
rating
06/12/2022
Israk Entisar
Well made product
UL sensor
rating
04/12/2022
Sardar Piash
Outstanding
Ultrasonic Sonar
rating
02/12/2022
Sazzad Hossen
The product was good. The product fulfilled the requirement.
AMAZING
rating
29/11/2022
Aaseer Ahbab Shayaan
LOVELY WONDERFUL
Hc SR 04
rating
26/11/2022
Reaz
Nice
Not check
rating
26/11/2022
Md real
Ok
Good
rating
24/11/2022
Niloy
The product was good.
Good
rating
24/11/2022
Niloy
The product was good.
Sensor
rating
16/11/2022
Tanzil Parvez
Good
Good
rating
07/11/2022
Shuvro
Good
US sensor
rating
04/11/2022
Aneek Siddiki
Good
Thanks RoboticsBD.
rating
30/10/2022
Md. Fahim Faysal Niaz
Best product ever. I\'m satisfied.
good
rating
27/10/2022
Shimul Islam
good
.
rating
26/10/2022
mohammed shahriar
.
.
rating
23/10/2022
SAIP SADIK
I am very happy to buy this.\r\nWorks fine
Nice
rating
11/10/2022
Jesan
Good
Mid good
rating
07/10/2022
Tanzim khan
Good
Amazing
rating
30/09/2022
Ahmed Afif
Thanks Robotics BD for delivering all the products in good conditions
Excellent
rating
21/09/2022
Binoy kumar
Working good
SR04
rating
21/09/2022
Saleh Edu
Works Perfectly
Ultrasonic sensor
rating
23/08/2022
Muhtasim Ferdous Reshad
If there was 3pin ultrasonic it would be good.. but this is also fine
Rating
rating
20/08/2022
AL Miraz
10
Awesome
rating
21/06/2022
Towhed Ahmed Nadim
I like it
Sensor
rating
21/06/2022
Md Roknul Hakim Alrazi
Very useful product
Good
rating
17/05/2022
Ferdous
Nice product
Hc
rating
24/04/2022
Tashrif
Good
Overall good
rating
07/04/2022
Munna
Working fine
Like this
rating
02/04/2022
Rayhan Utshab
Good
Ultrasonic sensor
rating
01/04/2022
Soumik
Good
Review
rating
01/04/2022
Nasim
good quality product
Good
rating
20/03/2022
Sadman
Works perfectly
Great!
rating
23/02/2022
Dr. Engr. Muhammad Reazul Haque
Great!
Good
rating
20/01/2022
Shahansha Mahabub
Works fine for me!
Good
rating
20/01/2022
Mafiur Rahman
Good
Good
rating
31/12/2021
Md Mynul Islam
Good
Cable For Arduino UNO/MEGA (USB A to B)-3.2 Feet/1
rating
31/12/2021
AL-Muzahid
Good quality
Good
rating
31/12/2021
Shimul
Good
Best
rating
29/11/2021
Sanaur Asif
It is working properly.\r\nAnd I\'m using in my project.
Good
rating
18/11/2021
Samiul
It works as expected
Nice product
rating
16/11/2021
M R Hassan
Great service
Nice product
rating
16/11/2021
M R Hassan
Great service
Sensor
rating
18/10/2021
Arfanul Kabir Apurbo
One sensor is not working...
Ultrasonic sensor
rating
09/10/2021
Fahim Abrar
This also satisfied me
Ultrasonic sensor HC- SR04 - Ultrasonic Sensor Mou
rating
04/10/2021
MD MAHFUJUR RAHMAN
The quality of the product is good.
Good quality
rating
01/10/2021
Md. Ariful Haque
Works fine.
Ultrasonic Sensor
rating
28/08/2021
Fahim
Good Products. Very functional
N/A
rating
08/08/2021
Sherajum Monira Mira
Good
Sr04?
rating
26/07/2021
Reza
Good product
Ultrasonic Sensor
rating
23/07/2021
Ridwanul Islam Shafi
Good product
awesome
rating
24/06/2021
raiya
awesome
good
rating
23/06/2021
Rubayet
good
sensor quality is as expected at this price
rating
27/05/2021
Wasif Hossain
sensor quality is fine
Hasan
rating
07/05/2021
Md Hasanul Karim
Very good condition
A
rating
27/04/2021
Salim Ahammed
A
Ok
rating
20/04/2021
Pinto
No screw and nut included for installation.
ok
rating
06/04/2021
Nazmus Sakib
ok
Good
rating
03/04/2021
Mithul
Good
It worked well.
rating
31/03/2021
Aisha
It worked well.
.
rating
22/03/2021
Abdullah Al Mukti
Well
Did not test yet
rating
23/02/2021
Abdur Rahman Bin Sharif
Did not test yet
Did not test yet
rating
23/02/2021
Abdur Rahman Bin Sharif
Did not test yet
Nice
rating
22/02/2021
Ekhtiar Riju
Perfect
5 out of 5
rating
10/02/2021
Abdullah Al Suad
excellent
sensor
rating
19/01/2021
Shahriar
best
G
rating
20/12/2020
Shuvro Dev
G
Ultrasonic sensor HC- SR04
rating
13/12/2020
Antora Dev
covering a good range.
rating
13/12/2020
Arafat
Good quality
Product quality
rating
07/12/2020
Azwad Habib
Good product
Hossain Azad
rating
17/11/2020
Hossain Azad
Good
Great
rating
09/11/2020
Debnath Saummya Protyay
Great
Review
rating
07/11/2020
Anwarul Kabir
Good
Low price
rating
06/11/2020
Abdul Kadir
Very good in service & quality.
Good
rating
01/11/2020
ANUP PAUL
Good product
good product. fast delivery.
rating
13/10/2020
Tariq Sadat
good product. fast delivery.
Good
rating
12/10/2020
Sakib
Good
Don't know!!!
rating
08/10/2020
Md. Mahfuzul Islam
didn\'t use it..... hope it will work.... but packing system was very poor......
Top notch
rating
04/10/2020
Sabbir Hossain
Sensor was good
Good Quality
rating
12/09/2020
Kazi Asif Mahmud
satisfied
Ultrasonic sensor
rating
09/09/2020
Md shahadat kabir
It\'s one pin is ban
Sensor
rating
02/09/2020
Junaid Tasneem Zoha
Great
Medium Quality
rating
02/09/2020
Nayeem Hossain
দুইটা কিনেছিলাম। একটা ভালোভাবেই কাজ করছে। কিন্তু অন্যটা মাঝে মাঝে গার্বেজ ভ্যালু দিচ্ছে। কোন কাভার বা প্যাকেট ছাড়াই খোলামেলা এসেছে। তেমন ভালো মনে হয়নি।
Sonar sensor
rating
24/08/2020
Fidel Arnob
Good product
Good product
rating
28/07/2020
Mosharaf Hossen
Good product
Review
rating
17/07/2020
Danial
valo cholce
ok
rating
14/07/2020
Sabbir Ahmed
ok
GUVA-S12SD UV Detection Sensor Module
rating
08/07/2020
KAWAM ZAHIN
havn\'t tested it yet but as far my experience with robotics bd, it should work as it syas\r\n
high price
rating
02/07/2020
Zareef
nice but price is a little high\r\n
Sensor
rating
20/05/2020
Ariful Islam Fahim
Reliable device
4.5
rating
13/05/2020
Md. Ahsan Habib
Got it as expected.
As usual
rating
26/04/2020
Ahnaf Hasan
As usual sensor
Ok
rating
24/03/2020
Belal Hossain Shuvo
Ok
Good Product
rating
24/03/2020
Alvee
work Properly
A+
rating
23/03/2020
Talha Bin Tareq
V.Good
Robotics
rating
22/03/2020
Md.Sujaur Rahman
Very well
Good
rating
06/03/2020
Md Shafiqul Islam
Working good
Good
rating
01/03/2020
Mugdha
Good
Review
rating
21/02/2020
Atanu Kumar dey
Good
Good quality
rating
20/02/2020
Md Yusuf Khan
It came exactly as described
Great
rating
29/01/2020
Ikram
Worked fine!
Good
rating
27/01/2020
Nowshed Galib
The products quality of robotics bd is so good
HC SR
rating
25/01/2020
Arham Nawaf\r\nArham Nawaf
Good
Best
rating
19/01/2020
Fm saad
Best
Good enough
rating
14/01/2020
Mubtasim Turzo
Good in Quality.
Good quality
rating
14/01/2020
Shakil
5★
Ok
rating
07/01/2020
MD. Fazlul Haque
Ok
good
rating
06/01/2020
Tahmid Hossain Nihal
the product in well enough and works well
Excellent
rating
02/01/2020
Dr sakeb\r\n
Excellent
Ultrasonic sensor HC - SR04 - Ultrasonic Sensor Mo
rating
28/12/2019
Mamunur Rashid Alex
Good
Perfect
rating
23/12/2019
Nur Mahmud
Detects objects perfectly
Value
rating
09/12/2019
Rasedul Alam
Good
Good
rating
29/10/2019
Fuad Rabbi Shuvra
Nice product.
Good
rating
24/10/2019
Nazmul
Good
Good
rating
23/10/2019
Ratul Hasan
Valo
sensors
rating
12/10/2019
md rafiqul islam
good
Sensor
rating
10/10/2019
Mazharul
Good
Wow
rating
09/10/2019
Shukur
Gd
good quality product
rating
08/10/2019
Samiul Islam
works fine.
Work it fine
rating
08/10/2019
Jubayer
Work it fine
Good
rating
24/08/2019
Asikur Rahaman
Good
Good Sensor
rating
24/06/2014
Mehedi B.
Good Sensor for distance measurement and proximity detection
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100mm x 100mm Medium Magnetic Field Viewing Paper

Visualize magnetic fields with this large, micro-encapsulated film known as field paper. This material allows the user to see the magnetic field produced by any magnet.

Price BDT 2,120
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3D Scanner Laser Desktop-... Quick view

Reference: RBD-1227

3D Scanner Laser Desktop- DIY Red

Object Scanning Device with USB 2.0 Interface / CMOS Sensor

Price BDT 18,999
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Gravity Huskylens AI Camera... Quick view

Reference: RBD-1974

Brand: DFRobot

Gravity Huskylens AI Camera Vision Sensor with Silicone Case

One-click learn Machine Learning Enabled Onboard Screen Extreme Performance

Price BDT 9,890
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Mercury Medallion Module Quick view

Reference: RBD-2089

Mercury Medallion Module

Consists of a mercury switch 680Ω resistor LED that will light up when tilt is detected. 

Price BDT 45
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IR Remote Control without... Quick view

Reference: RBD-2103

IR Remote Control without Battery

Remote control distance: more than 8 meters Crystal: the oscillation frequency of 455 IR carrier frequency: 38KHz Output form: Digital Power Supply: CR2032 Battery Pointing Angle: up to 60º Button: free height is less than 3mm, the force 200-350g, the life of more than 200 000 click

Price BDT 65
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UART EM4100 RFID Card... Quick view

Reference: RBD-0915

UART EM4100 RFID Card Reader RDM6300

Maximum effective distance up to 150mm Less than 100ms decoding time Support external antenna Uart interface Support EM4100 compatible read-only or read/write tags Small outline design

Price BDT 380
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LM35 Quick view

Reference: RBD-0241

LM35 Temperature Sensor

Calibrated directly in Degree Celsius (Centigrade) Linear at 10.0 mV/°C scale factor 0.5°C accuracy guarantee-able (at a25°C) Suitable for remote applications Low cost due to wafer-level trimming Operates from 4 to 30 volts Less than 60 mA current drain Low self-heating, 0.08°C in still air Non-linearity only 0.25°C typica

Price BDT 95
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Liquid Level Sensor for... Quick view

Reference: RBD-0337

Brand: Waveshare

Liquid Level Sensor for Arduino (WaveShare)

Detection depth: 48mm Power: 2.0V ~ 5.0V Dimension: 19.0mm * 63.0mm Mounting holes size: 2.0mm

Price BDT 499
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GY-BME280 3.3V Temperature... Quick view

Reference: RBD-1946

GY-BME280 3.3V Temperature and Humidity Sensor

Comes with the BME280 sensor. Pressure accuracy of ±1 hPa. Temperature accuracy ±1.0°C. Altimeter accuracy ±1 meter. Humidity: +-3%

Price BDT 695
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Cable For Arduino UNO/MEGA... Quick view

Reference: RBD-1130

Cable For Arduino UNO/MEGA (USB A to B)-1feet

Fully compatible with the PC. Moulded strain relief and PVC over moulding to ensure a lifetime of error-free data transmissions. Aluminium under mould shield helps meet FCC requirements on KMI/RFI interference. Foil and braid shield complies with fully rated cable specifications reducing EMI/FRI interference.

Price BDT 80
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IR Receiver Shielded Quick view

Reference: RBD-1191

IR Receiver Shielded

Internal filter for PCM frequency. Inner shield, good anti-interference ability. High immunity against ambient light. Improved shielding against electric field disturbance 3.0V or 5.0V supply voltage; low power consumption. TTL and CMOS compatibility. Suitable transmission code:NEC code,RC5 code. Universal receiver. 38 KHz. Infrared remote control receiver.

Price BDT 15
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Wall-e Programmable Robot Quick view

Reference: RBD-1253

Wall-e Programmable Robot

Program Software: Mixly + XR Scratch(base on Scratch2.0) Input: Edge sensor, Button, IR receiver module, Ultrasonic sensor, Tracking sensor Output: Buzzer, RGBLED, Two motor port,OLED CPU: Arduino UNO R3 Power: 2Pcs 3.7V DC Lithium battery Control: WiFi control/IR remote

Price BDT 17,990
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4x4 Keypad - 16 Key -... Quick view

Reference: RBD-0986

4x4 Keypad - 16 Key - Matrix Membrane Type

Ultra-thin design & adhesive backing provides easy integration to any project. Excellent price-performance ratio. Easy communication with any microcontroller 5 pins 2.54mm pitch connector, 4x 4type 16 keys. Sticker can peel off for adhesive mounting.

Price BDT 74
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LM301AN Op-Amp Quick view

Reference: RBD-1024

LM301AN Op-Amp

IC Name: LM301AN Op-Amp Package/Case: DIP-8

Price BDT 40
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I2C Level Conversion Module 3~5V Fro Arduino Quick view

Reference: RBD-0358

I2C Bi-Directional Logic Level Converter- 2 Channel

Dimensions: 11×15 x 2 (L x W x H) mm Weight: 1gm Mutual transform between 5V TTL and 3.3V TTL Two channels of logic and high voltage low voltage logic can two-way transform Portable and lightness, with 2 rows 4 pin contact pins

Price BDT 250
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 Mini Wireless 2.4GHz Keyboard with Mouse Touchpad Remote Control, Backlight Quick view

Reference: RBD-0939

Mini Wireless 2.4GHz Keyboard with Mouse Touchpad Remote Control, Backlight

RGB Backlight Keys Onboard trackpad with all mouse function Left+Right click Gaming keys Operate on inbuilt Rechargeable battery Navigation, Volume Rockers and Home key Portable Pocket Size Plug and Play operation, No drivers needed to install Compatible with all Devices and operating Systems

Price BDT 899
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6V,180rpm Micro DC Geared... Quick view

Reference: RBD-1656

6V,180rpm Micro DC Geared Motor with Back Shaft

L-Shaped DC Gearmotor Nominal Voltage: 6V No Load RPM: 180 Stall Current: 2.8A Stall Torque: 11.11 oz-in Shaft Diameter: 5.5 mm (Double-Flat) Comes with Back Shaft

Price BDT 120
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