This article first deals with simple definitions related to electric and magnetic fields, then enters the subject of the combination of these two fields, which is called electromagnetism and electromagnetic field. This article is a continuation of the basic electronics article. ***””Electronics, Programming and Arduino projects, including the source codes, schematics and PCB plans for…
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In the previous articles, I introduced the capacitor and its calculations. This article is about some examples of capacitor applications and how to use it in the circuit design. Circuits are generally divided into three categories: digital, analog or combined. The role of capacitors in each of these circuits is different, but the function of…
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You must have realized what electronic circuit means during your life. In general, we can have this definition of an electronic circuit: A set of parts which their pins are connected in a special way with a conductive material (such as copper) to each other and they are supposed to make changes to the incoming…
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A transistor is a three-pin electronic component which its main function is to pass the current from two pins according to the other pin (along with current amplification). Transistors have different types, but we are going to examine the bipolar type here. The two pins which the current passes are called the emitter (E) and…
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In most of the books about the use of capacitors, it is written in such a way that the capacitor stores electric charge in itself and discharges it when necessary. What we need to know is when should the capacitors be charged and when should they be discharged and how is this possible? Therefore, first…
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Diode is another electronic component that has two pins. These two pins (bases/legs) are called cathode (negative) and anode (positive). The cathode pin is usually shorter or closer to the white (or black) ring on the body of the diode. The diode is shown on the schematics map with the D letter, and its applications…
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Resistor prevents additional voltage or current from entering the part in the circuit. The maximum allowed voltage or current of each part may be different from another part, if it exceeds, It will cause the overheat and the material of that part combines with oxygen and in the other words, the part burns. The resistor…
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All parts that have conductive ends/bases/pins and make changes on the input electric current, are called electronic parts. You see many electronic components every day and now you have decided to learn how to work with them. If you have more advanced parts, it means that you have access to higher technology. If you have…
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I have updated the “IP Camera” and “Camera Microphone” firmware to the new revision with two new features, esp32-cam time lapse and AVI file export: 1. Time Lapse: this feature lets you to use your esp32-cam module as a time lapse recorder and saves the video in the memory card. 2. AVI Export: with this…
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The “ESP8266 Arduino Music Player with RGB Driver” system (a.k.a WiCard RGB Light) is a circuit including an esp8266 core for handling the WiFi communications and data processing and an ATmega8a core to playing the audio data and driving the lights. The basic goal of this project was providing a music player and lighting system…
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