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Hobby Electronics

 Shyamal ― http://www.hobbycircuit4u.com

Hobby Electronics is the most popular website on the internet.

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Listed: Jul 26, 2012

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IR Remote Control Circuit Diagram

IR Remote Control Circuit Diagram

Hobby Electronics ― This is the most popular IR Remote control circuit for home appliances like lamp, fan, radio, tv etc to make the appliance turn on/off from a TV, VCD or DVD remote control. It is very simple to build because of few components and simple design....

Tags: Hobbycircuit, Circuit Diagram

Shyamal ― 27 weeks ago

Dark Activated LED Light Circuit Diagram

Dark Activated LED Light Circuit Diagram

Hobby Electronics

Shyamal ― 31 weeks ago

Touch Activated Alarm Circuit Diagram Using 555 Timer IC

Touch Activated Alarm Circuit Diagram Using 555 Timer IC

Hobby Electronics ― This is the circuit diagram of touch activated alarm system which still activated on load shedding. Alarm system will be activated when someone touch the “touch plate” which is called trigger. In this circuit the most updated part is automatic...

Tags: Circuit Diagram, 555 Timer

Shyamal ― 42 weeks ago

AM Transmitter Circuit Diagram Using 741 Op-amp

AM Transmitter Circuit Diagram Using 741 Op-amp

Hobby Electronics ― ∙ AM transmitter is a circuit which can transmit message signal to modulated signal. This circuit is designed with limited power and the required power supply of the transmitter circuit is 9 Volt. The circuit has three parts that is an...

Tags: Microphone, 741 IC, Transmitter, Op-amp

Shyamal ― 42 weeks ago

AM Receiver Circuit Diagram Using ZN414 IC

AM Receiver Circuit Diagram Using ZN414 IC

Hobby Electronics ― A.M. Antenna coil and MW gang connected in parallel. One common point of this parallel circuit connected to the IC ZN414 pin number 2. ∙ Another common point of that parallel circuit connected with two resistors (100kΩ, 1kΩ) in series. A...

Tags: AM Radio Receiver, ZN414 IC

Shyamal ― 42 weeks ago

Mini Auto Charger Fan Circuit Diagram

Mini Auto Charger Fan Circuit Diagram

Hobby Electronics ― This circuit is called the auto circuit which can use any electronic device to operate it automatically. To make this circuit the cost is very low. Any interested student can make it very easily. The main component of this circuit is...

Tags: Relay

Shyamal ― 42 weeks ago

Dual Voltage Power Supply 12 Volt

Dual Voltage Power Supply 12 Volt

Hobby Electronics ― This is the simple circuit diagram of Dual Voltage Power Supply. It is used for Misc… application. This circuit is called regulated power supply. For this reason the main component of this circuit is Regulator IC. It also needs few components ...

Tags: Regulator IC

Shyamal ― 42 weeks ago

Freeze Protector Circuit Diagram

Freeze Protector Circuit Diagram

Hobby Electronics ― This is the simple freeze protector circuit diagram. It is also called timing circuit. It is just hobby project for beginners. When you need to operate automatically any device in the fixed time later after coming AC power supply, you can use this...

Tags: Relay, 555 Timer

Shyamal ― 42 weeks ago

Automatic Street Light Controller Circuit Diagram

Automatic Street Light Controller Circuit Diagram

Hobby Electronics ― This circuit is an automatic street light controller. Sensors used to detect changes in light is LDR (Light dependent resistor), the working principle of Light dependent resistor is exposed to light when the resistance value of LDR great, but if ...

Tags: LDR, Relay, Regulator IC, 555 Timer, Circuit Layout

Shyamal ― 42 weeks ago

4017 LED Knight Rider Running Light Circuit Diagram

4017 LED Knight Rider Running Light Circuit Diagram

Hobby Electronics ― ∙ In this 4017 Knight Rider circuit, the 555 timer is wired as an oscillator. It can be adjusted to give the desired speed for the display. The output of the 555 is directly connected to the input of a Johnson Counter (CD 4017). The ...

Tags: Counter IC, 555 Timer

Shyamal ― 42 weeks ago

Digital Object Counter using LDR and digital IC 7490

Digital Object Counter using LDR and digital IC 7490

Hobby Electronics ― This is the simple circuit on Hobby Electronics. In this circuit three modules are used in object counter. 555 timer are used as a monostable mode and astable mode. The other is counter module.In this circuit 555 timer configured as a monostable...

Tags: LDR, 7 Segment Display, 555 Timer, Clock IC

Shyamal ― 42 weeks ago

Automatic Emergency Light Circuit Diagram

Automatic Emergency Light Circuit Diagram

Hobby Electronics ― This is the simple circuit of automatic emergency light. It is called dark dependent circuit. A 555 timer IC and LDR is used for this configuration. When light fall on the LDR, its resistance is decrease and in dark position its resistance is ...

Tags: Circuit Diagram, LDR, 555 Timer

Shyamal ― 42 weeks ago

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