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Distance Measurement Using Ultrasonic Waves

Distance Measurement Using Ultrasonic Waves
ATmega8 Project::Distance Measurement Using Ultrasonic Waves ATmega8 Project::Distance Measurement Using Ultrasonic Waves ATmega8 Project::Distance Measurement Using Ultrasonic Waves ATmega8 Project::Distance Measurement Using Ultrasonic Waves ATmega8 Project::Distance Measurement Using Ultrasonic Waves Parts of the board Connecting Sensor Demo HC-SR04
SKU SKU17727  
Weight 240.00 grams
 
Our price: Rs999.00 ($20.81)
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one year warranty 15 days money back guarantee ! fully assembled and tested c source code for hc-sr04 hc-sr04 atmega8 schematic

This MINI AVR Project demonstrate how the distance to an obstacle can be measured using ultrasonic waves. It makes use of techniques to precisely measure the time it takes for the sound wave (in ultrasonic wavelength) to reach the obstacle and then bounce and come back to the receiver. After the time measurement is complete, a small calculation is done to get the distance of obstacle from the sensor.

To show the calculated distance, a 16x2 Alphanumeric LCD Module is used. The main microcontroller used is ATmega8.

LCD Interface

LCD can be easily connect on the 16 pin female connecter provided on the board.

NOTE: If no text is visible on LCD then adjust the LCD Contrast Adj. preset with the help of a screwdriver.

Parts of the board

The images below shows the main parts of the board.

parts of board
Fig. Parts of the board

Usage

  • Install the sensor (HC-SR04) as shown on the image below. NOTE: Sensor is included in the package.
  • Power up the board using a 12V 1 A Adapter (NOT included with package!)
  • Switch on the board.
  • Now you can bring any obstacle in front of the sensor, its distance in CM will be shown on the LCD.
Installing HC-SR04
Fig. Installing the sensor

 

HC-SR04 ATmega8 Demo
Fig. HC-SR04 ATmega8 Interface Demo

 

Schematic

schematic hc-sr04 atmega8
Fig. HC-SR04 ATmega8 Interface Demo

Bill of Matterials

S.No. Reference Value Part Qty
1 R1 100 Ohms Resistor 1/4 watt 1
2 R2 330 Ohms Resistor 1/4 watt 1
3 R3 4.7K Ohms Resistor 1/4 watt 1
4 C1 470uF Electrolytic Capacitor 25V 1
5

C2,C5,C6,C7

0.1uF(100nF) Ceramic disk type capacitor 4
6 C3,C4 22pF Ceramic disk type capacitor 2
7 D1 1N4007 Diode 1
8 D2 - 5mm LED - Round - RED 1
9 U1 ATmega8 ATmega8 MCU 1
10 U2 7805 5V Voltage Regulator 1
11 L1 10uH Inductor 1
12 RV1 10K Ohms Preset (Variable Resistor) 1
13 SW1 - On/Off Switch 1
14 X1 - DC Socket 1
15 X3 16MHz Crystal 1
16 X4   HC-SR04 Sensor 1
17 - - 28 PIN IC Socket 1
18 - - 16 PIN Female Connecter 1
19 - - 4 PIN Female Connecter 1
20 - - 16 PIN Male Connecter 1
21 DISP1 - LCD Module 16x2 GREEN B/L 1

Downloads

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Product rating

Customer Reviews

  • Author: Uttam Dutta
    This is very innovative and exciting product. But I must say that this will get a smart dimension if there is 2 small switch to program it in desired distance and get some solid state output or potential free out put in some designated pin on the board.
  • Author: shiv naik
    what is the maximum distance measured??
  • Author: mitros
    Thanks for the amazing article!
  • Author: Elinor Lander
    Thank you for the auspicious writeup. It in fact was a amusement account it. Look advanced to far added agreeable from you! However, how can we communicate?

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