A small and simple AM Radio project with only 2 transistors. Mediumwave stations cab be listened to in your area through this circuit. The variable capacitor (VC1) in parallel with the coil (L1) acts as a tunable resonant circuit. This {Read More}
Walkie Talkie using NRF24L01: Nowadays we are living in the area of 4G and 5G. Almost all devices enabled 4G or 5G. However, old technologies like walkie-talkie and RF communication are still using. In this modern age, Arduino based walkie-talkie {Read More}
Spy Dialer is a free lookup website to find information about, people, phone numbers, addresses and email addresses. Usually, these types of services are not free; they charge some amount or offer a diluted version. It is a free reverse phone {Read More}
The 2N3906 is a commonly used PNP (Positive-negative-Positive) bipolar junction transistor used for general purpose low-power amplifying and switching applications. It is designed for low electric current and power and medium voltage, and its operating speed is very high. It {Read More}
BC548 is commonly used NPN transistor same like bc547. Collector and emitter will remain open when the base pin is held at ground and will closed when a signal is provided to base pin. BC548 has a gain value of 110 {Read More}
In this article we are going to explain Types of Sensor shortly. A Sensor is a device or detector that converts a physical parameter into a signal that can be monitored or measured. For example a GAS Sensor monitors gas gathering {Read More}
LM35 is a Temperature sensor, its output voltage changes, based on the surrounding temperature. It is a small and inexpensive IC that can be used to measure temperature between -55 °C to 150 °C. It can easily connect with any {Read More}
In this article, we will teach you how to connect a car battery. Polarity tester electronics circuit that will easily test the polarity of a DC source. The components needed and connection diagram is given below. Is it easy to {Read More}
LM3914 is an analog controlled LED driver IC, launched by the national semiconductor in 1980. It can control 10 LED lights based on an analog input voltage. It is best to alternate microcontroller ic where 10 LEDs have to control {Read More}
In this project 3.7v battery low full indicator circuit, we are going to make a very simple battery level indicator. This indicator circuit is for a 3.7 volts indicator. We have designed this circuit with few components at home with {Read More}
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