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2

Infrared based music transmitter and receiver

May 08 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: An infrared based music transmitter and receiver is made up of three different modules. Test these three modules before you make this project. An audio amplifier Dark sensor using 741 Melody generator using UM66 You can make this project using phototransistor as well as photodiode. Follow the following steps: a. Make a melody generator using UM66 and replace the speaker with infrared LED. b. Remove LED from the 741 module and connect with Audio amplifier. c....

1

RC module

May 08 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: An RC circuit is used to introduce time delay in circuits. A combination of resistor and capacitor gives a time constant. The following circuit shows a basic RC circuit. In the figure C1(100uF) works as a storage capacitor. When you press the switch, the capacitor charges quickly and provides base current to the transistor Q1, that results in collector current and that glows the LED D1.. The resistance R2(1K) provides a time constant of around 10seconds. After 10seconds, the base...

1

Counter module

May 06 in Basic Electronics, LDR Engineering, MINI Breadboard Written by: Sagar Sapkota

Description: It's a simple counter module. In the example, we have used 4026B and common cathode seven segment display. In place of 4026B, you can also use 7490 and 7447. How to make counter using 7490 and 7447 Articles related to counter: Up counter Seven segment display Datasheet of 4026B Datasheet of 7490 Datasheet of 7447 http://youtu.be/Z1kj4DPqDqI Project 1: Up Counter using astable mode 555 timer In the following example, we have connected...

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Up counter with multivibrator module

Apr 30 in Basic Electronics, LDR Engineering, MINI Breadboard, Recent Written by: Sagar Sapkota

Description: You can make an up counter using a counter module and a multivibrator module. First make a simple multivibrator, then make a counter and then combine them. WATCH THE VIDEO: http://youtu.be/_ZZIDH36vqg

3

Up Counter

Nov 24 in LDR Engineering Written by: Sagar

NEW PROJECT: EASY_STEPS_MAKE_INFRARED_BASED_OBJECT_COUNTER An up counter simply counts from 0 to 9. We can use this circuit to make digital object counter. This circuit can also be used to make a digital clock. Click here to read about ‘How digital Clock works?’ We need following components for making an up counter. 555- configured in astable mode 7490- decade counter- Click here to get the datasheet 7447- BCD to seven segment display- Click here to get the datasheet. Seven...

16

Digital Object Counter using LDR and digital IC

Nov 24 in Basic Electronics, LDR Engineering Written by: Sagar

NEW PROJECT: EASY_STEPS_MAKE_INFRARED_BASED_OBJECT_COUNTER We need following components for making an object counter 555- configured in monostable mode(automatic dark sensor using 555) 555- configured in astable mode 7490- decade counter- Click here to get the datasheet 7447- BCD to seven segment display- Click here to get the datasheet. Seven segment display- Common Anode Here, CC-Common Cathode and CA-Common Anode. 6. Resistors- see the schematic 7. Capacitors-...

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Object counter using LDR and calculator

Nov 14 in LDR Engineering Written by: Sagar

To make an object counter we can use a simple dark detector circuit and a normal calculator. Pole and NO (Normally Open) terminals of a relay have to be connected to the two pins which are used to activate ‘=’ key of calculator. As we block the light falling on LDR, the calculator starts counting. For the calculator to work as a counter, we first need to press ‘1’ and ‘+’ keys. All calculators may not work as counter, you need to check with the following steps: a. First press 1 b....

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Infrared based music transmitter and receiver

RC module

Counter module

Up counter with multivibrator module

Up Counter

Digital Object Counter using LDR and digital IC

Object counter using LDR and calculator

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counter

Infrared based music transmitter and receiver

RC module

Counter module

Up counter with multivibrator module

Up Counter

Digital Object Counter using LDR and digital IC

Object counter using LDR and calculator

Search

Flickr photostream

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