Introduction If you have ever visited any industry, you have surely perceived that industrial plants generate a lot of noise. In the same vein, traffic rails also produce a great amount of noise. Similarly, the … Read more
ca3140
In this tutorial, we are making a project on an automatic knock sensing code lock circuit. This circuit will require codes to activate the appliance connected with the relay at the output of this circuit. … Read more
Knock Sensing Code Lock using CD4017 IC
In this tutorial, we are making a very easy and interesting project of a Simple metal detector using a CA3140 IC. There are lots of metal detectors available in stores etc. to build but they … Read more
Simple Metal Detector using CA3140 IC
In this tutorial, we are making a project of an ultra-sensitive vibration sensor using a 555 timer and CA3140 IC. The purpose of this circuit is to sense any kind of vibration and switch on … Read more
Ultra-Sensitive Vibration Sensor using CA3140 IC
This is the project of a temperature-controlled switch using LM35 and CA3140 ICs. The main purpose of this circuit is to provide temperature sensing applications. LM35 is a temperature sensor IC, its output is linearly … Read more
Temperature Controlled Switch Using LM35 & CA3140
The CA3140 is a 4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output that combines the advantages of high voltage PMOS transistors with high voltage bipolar transistors on a single monolithic chip. The IC has a wide range of … Read more
CA3140 Bi-CMOS Operational Amplifier Datasheet
The motor plays an important role in many engineering applications. People always search for an efficient and easy way to control these motors. There are many techniques available in both AC and DC to control … Read more
Simple Sound Controlled DC Motor using CA3140 IC
The sequential sound-activated switch is an electronic device that helps you to turn on or off switches without moving yourself. The sequential sound-activated switches are creative and work as sound detectors. It starts working when … Read more
Sequential Sound Activated Switches – Electronics Project
In this tutorial, we are going to make a project of sound-activated LEDs using a CA3140 IC. This circuit will blink/flash three LEDs according to the sound received from the microphone. You must have seen … Read more
Sound Activated LEDs Using CA3140 IC
This is one of the most fun and easy DIY projects in Electronics. We are going to demonstrate a Music Dancing LEDs circuit. It is an ideal project for students, electronic hobbyis,ts or those who … Read more
Music Dancing LEDs with CD4017 IC
In this tutorial, we are going to make two circuits of Light Dark Sensors using CA3140 IC. CA3140 is a BiMOS operational amplifier that has MOSFET input and Bipolar output. The other main component used … Read more
Light Dark Sensor Using CA3140 IC
Light sensor circuits are used to detect the presence of light or darkness around them. They are mostly used to control electrical loads such as lights, fans, etc. In this tutorial, we are going to … Read more
Ultra Sensitive Light Sensor using CA3140 IC
In this tutorial, we are making a project on the knock sensor circuit. This circuit is used to detect the door or table knocking and then activates the relay for a specific preset time. Any … Read more
Knock Sensor Circuit using Piezoelectric
In this tutorial, we are making an interesting and simple project of a Static electricity detector. This circuit is highly sensitive and is able to detect static charge in any substance at a 2-3 feet … Read more
Static Electricity Detector using 2N3819 MOSFET
Nowadays the uses of AC wires are pretty common whether it’s our homes, offices, or workplaces. these wires have a tendency to get damaged from the inside due to which the whole system stops working. … Read more
Electric Field Detector using CA3140 IC
Here is an extremely intriguing DIY project of a sound-activated knight rider/LED chaser circuit. The circuit will create a running LED light effect from right to left for a brief time frame period when any … Read more