Electronic Circuit: DIY Motion Sensor Light using LED Bulb and PIR Sensor by Narasimha Rao

8051 Circuit. - This is one of implementation PIR sensor to build motion sernsor light. It is only need small component completed to build motion sensor light in this time.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Circuit: DIY Motion Sensor Light using LED Bulb and PIR Sensor (Source: Circuitstoday.com)

Component Parts

• AC/DC Adapter modula
• Capacitors
• Resistors
• PIR Sensor
• Transistor
• LED panel

Description

The electronic circuit design like in Figure 1 above show you DIY Motion Sensor Light using LED Bulb and PIR Sensor that written by Narasimha Rao. 

According Circuitstoday blog mentioned that this project is a DIY Smart Light Adapter – which aims to build a smart light bulb based on your ordinary light bulb (which can be a CFL or an LED lamp) and a PIR sensor. The final output will be a light bulb that turns ON based on motion around a particular area within the range of PIR sensor attached to the ordinary light bulb. So lets begin!

If you are not willing to re-wire your home for smart lighting or not interested in spending a huge amount of money for the smart lighting system, then this DIY project is for you.

This simple adapter converts normal bulb into a smart Bulb, with the help of a PIR sensor. The mounting of the sensor is done in such a way that the angular position of the sensor can be adjusted, so that, the original position of the batten holder does not affect the sensing of human passage. This is achieved by using a 3.5 mm stereo jack and its socket. However, this type of mounting is up to your will and wish. It’s possible to wire directly without any mounting.

Read More

Electronic Circuits: Simple Temperature to Voltage Converter using NTC and CA3130

8051 Circuit. - This is one of implementation NTC and CA3130 IC to build converter simple temperature to voltage. It is only need small component completed to build converter in this time.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Simple Temperature to Voltage Converter Circuit using NTC and CA3130 (Source: Eleccircuits)

Component Parts

• Zener Diode
• Capacitors
• Resistors
• NTC
• Variable resistors
• CA3130 IC

Description

The electronic circuit design like in Figure 1 above show you Simple Temperature to Voltage Converter Circuit using NTC and CA3130. 

According Eleccircuits blog mentioned that this is a simple temperature to voltage converter circuit or an Electronic thermometer circuit there. Which will operate in a temperature range of 0 to 24 degrees Celsius (32 to 75 degrees Fahrenheit). The output rate of 500mV per degree Celsius. Which can be read by a normal voltmeter.

To make it easier to find devices thus Temperature sensors of this circuit. So use a coefficient thermistor relatively constant and not linear. However, the temperature range of 0-24 degrees Celsius. This is enough to use a thermometer kind of normal.

The IC1 is op-amp as the difference amplifier. There are inputs as bridge circuit include with R1 to R4, by at R1,R2,R3 and P1 is a constant arms of the bridge. And R4 is an arm of Bridget’s changing values. The voltage across between R1 and R2 have about 3.4V at zero degree Celsius. The P1 is calibrated to the output of op-amp is 0V.

There are conditions of the NTC, the NTC resistance at higher temperature is decreased, the voltage drop across NTC reduced. Making the output of the Op amp with higher voltage. IF the output is not 0.5V degrees Celsius, Then increase or decrease the R8 and R9 but to reduce or increase to equal the two.

Read More

Electronic Design: Touch ON and OFF Switch Circuit using NE555 IC

Radio Circuit. - This is one of implementation of NE555 IC to build switching system. It is only need small component completed to build this electronic circuit that basically component.

The electronic design circuit of Touch ON and OFF Switch Circuit using NE555 IC is look like in Figure 1 below. Other component used like resistors, capacitors, transistor, sensor, etc.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Touch ON and OFF Switch Circuit using NE555 IC (Source: Electronichub.org)

Component Parts

• 1 x 555 Timer IC
• 1 x 3.3 MΩ Resistor (1/4 Watt)
• 1 x 1 MΩ Resistor (1/4 Watt)
• 1 x Bulb with holder (regular or CFL)
• 1 x 5V Relay Module (if relay module is not available, then you need the following components)
• 1 x 5V Relay
• 1 x 2N2222 NPN Transistor
• 1 x 1N4007 PN Junction Diode
• 1 x 1 KΩ Resistor (1/4 Watt)

Description

The electronic circuit design like in Figure 1 above show you touch ON/OFF switch using 555 IC. Other component need also that can supply with low voltage DC +12V and ground source to charge this IC and all system component from power supply built. With this electronic design circuit you can produce touch on/off switch that useful now.

According Electronichub blog mentioned that the design of the Touch ON and OFF Switch circuit is very simple. First, the GND, VCC and RST pins of the 555 i.e. pins 1, 8 and 4 are connected to GND and 5V respectively. Pin 2 is pulled HIGH using a 3.3 MΩ Resistor and Pin 6 is pulled LOW using a 1 MΩ Resistor.

Two touch plates are connected to pins 2 and 6 as shown in the circuit diagram. In case of the touch to ON plate, one end is connected to pin 2 and other end is connected to GND. Similarly, one end of the touch to OFF plate is connected to +5V and the other end is connected to Pin 6.

The main principle behind the project lies in the basic functionality of the pins of 555 Timer. We know that 555 Timer has 8 pins namely GND (1), Trigger (2), Output (3), Reset (4), Control Voltage (5), Threshold (6), Discharge (7) and VCC (8).

In this, Pins 2 and 6 are used in this project. Now, we see the basic working of these pins. When Pin 6 i.e. the Threshold pin is held LOW, and if Pin 2 i.e. the Trigger Pin is made LOW, the output of the 555 Timer IC will be HIGH and it stays there. This condition can be used to turn ON the appliance.

Now consider Pin 2 is pulled HIGH and if Pin 6 is made HIGH, the output of the 555 Timer IC will be LOW and it stays there. This condition can be used in our project to turn OFF the load or device.

Read More

Electronic Design: Car Parking Guard Circuit using Infrared Sensor and 555 IC

Alarm Circuit. - This is one of the application of infra red sensor and 555 IC to build very useful circuit that called with car parking guard. Beside two component mentioned above, there are also any other component like LM567 and photo darlington transistor.

So, the electronic design circuit of car parking guard look like shown in Figure 1 below. From this Figure that it is show you the car parking circuit using pasive component like resistor and capacitor that easy to buy in this market.

Beside we will show you electronic design circuit and component parts need, we also will give you global description about this circuit. So, please enjoy to continue reading this article until finish and get more useful.

Electronic Circuit Design

Figure 1. Electronic Design: Car Parking Guard Circuit using Infrared Sensor and 555 IC (Source: Electronics-hub.com)

Component Parts

• Infra red sensor
• NE555 IC
• LM567 IC
• Photo darlington transistor
• Resistors
• Capacitors

Description

The electronic circuit design like in Figure 1 above show you car parking guard using infra red sensor and 555 IC. In here we can use low voltage DC 12V source to charge this IC and all system. With this electronic design circuit you can produce car parking guard that useful now.

According Electronics-hub blog mentioned that The reverse indicator light supply is given to the 7805 regulator to give 5v to the rest of the circuit. The diode D6 is used to eliminate the reverse current and wrong supply polarity.

When the car is driving in reverse the car battery will provide DC supply the reverse light indicator at the back of the car when this supply came to the reverse light indicator the circuit will have the power supply.7805 will regulate the DC voltage to 5V and give to the IR Sensors through the transistor with 20 KHz modulating frequency of the LM567 (TONE DETECTOR) available at Pin5. The resistor R1 will resists the IR senor current. At this point the pin8 of LM567 is high which will enable the LM555 timer operating in astable multivibrator mode. The output of the timer is enabled which can be assured by the LED (blinking) and also buzzer will beeps at determined rate given by the resistors R6, R7 and capacitor C7. The timer output also is given to the lamp through a transistor. The lamp will blink as a warning signal because of the PWM signal generated by the timer, transistor will work as a switch and resistor R10 will limit the current. This condition is maintained until the 20 KHz signal is received by the pin3 of the LM567.

The above condition is when there is no obstacle in the path of the car while taking reverse. If there is a obstacle the IR beam will radiate back to the IR sensor and the 20KHz modulated signal is given to the pin3 of LM567 through photo Darlington transistor, at this point the pin8 of the LM567 is turned to low and also gets locked to detect the 20Khz signal. By this the LM555 is turned low and disabled by this the led will remain lighting and buzzer makes the continuous sound to alert the driver.

Read More