Ayush Jain, Author at Engineers Garage Electronic Projects, Electrical Engineering Resources, Makers Articles and Product News Wed, 11 Jun 2025 16:21:38 +0000 en-US hourly 1 https://www.engineersgarage.com/wp-content/uploads/2019/08/cropped-eg-favicon-32x32.png Ayush Jain, Author at Engineers Garage 32 32 Introduction to batteries and their types https://www.engineersgarage.com/introduction-batteries-their-types/ https://www.engineersgarage.com/introduction-batteries-their-types/#respond Sat, 31 May 2025 18:44:21 +0000 https://www.engineersgarage.com/?p=64201 What is a Battery? A battery is an electrochemical device that can store energy in the form of chemical energy. It translates to electric energy when the battery is connected in a circuit due to the flow of electrons because of the specific placement of chemicals. It was invented by Alessandro Volta, whereas Gaston Plante…

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]]> https://www.engineersgarage.com/introduction-batteries-their-types/feed/ 0 What are the different battery types for specific applications? https://www.engineersgarage.com/what-are-the-different-battery-types-for-specific-applications/ https://www.engineersgarage.com/what-are-the-different-battery-types-for-specific-applications/#respond Sat, 31 May 2025 18:43:14 +0000 https://www.engineersgarage.com/?p=64376 How to choose right battery for a application? In this article, we will learn how to choose a battery according to the specifications and requirements of your application. Some applications need more power and some need to be cheap with less power. There are various factors and parameters that to consider when choosing the best…

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]]> https://www.engineersgarage.com/what-are-the-different-battery-types-for-specific-applications/feed/ 0 How rechargeable batteries, charging, and discharging cycles work https://www.engineersgarage.com/how-rechargeable-batteries-charging-and-discharging-cycles-work/ https://www.engineersgarage.com/how-rechargeable-batteries-charging-and-discharging-cycles-work/#respond Sat, 31 May 2025 18:41:15 +0000 https://www.engineersgarage.com/?p=64324 How rechargeable batteries, charging, and discharging cycles work The battery stores electrical energy in form of chemical energy and the chemical energy again able to convert into electrical energy. The conversion of chemical energy to electrical energy is called discharging. The chemical reaction during discharge makes electrons flow through the external load connected at the…

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]]> https://www.engineersgarage.com/how-rechargeable-batteries-charging-and-discharging-cycles-work/feed/ 0 Battery configurations (series and parallel) and their protections https://www.engineersgarage.com/battery-configurations-series-and-parallel-and-their-protections/ https://www.engineersgarage.com/battery-configurations-series-and-parallel-and-their-protections/#respond Sat, 31 May 2025 18:40:28 +0000 https://www.engineersgarage.com/?p=64495 Configuration in Batteries and their protection A single cell is not sufficient for some devices. To achieve the desired voltage, the cells are connected in series to add the voltage of cells. To achieve the desired capacity, the cells are connected in parallel to get high capacity by adding ampere-hour (Ah). This combination of cells…

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]]> https://www.engineersgarage.com/battery-configurations-series-and-parallel-and-their-protections/feed/ 0 Understanding battery management systems https://www.engineersgarage.com/understanding-battery-management-systems/ https://www.engineersgarage.com/understanding-battery-management-systems/#respond Sat, 31 May 2025 18:38:02 +0000 https://www.engineersgarage.com/?p=64418 A battery-management system (BMS) is an electronic system or circuit that monitors the charging, discharging, temperature, and other factors influencing the state of a battery or battery pack, with an overall goal of accurately indicating the remaining time available for use. It’s used to monitor and maintain the health and capacity of a battery. Today’s…

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]]> https://www.engineersgarage.com/understanding-battery-management-systems/feed/ 0 What is EMC? https://www.engineersgarage.com/what-is-emc/ Sun, 02 Feb 2025 17:29:58 +0000 https://www.engineersgarage.com/?p=65554 EMC stands for Electromagnetic compatibility, which means that a device is compatible with (i.e., no interference is caused by) its electromagnetic (EM) environment. It does not emit levels of EM energy that generate electromagnetic interference (EMI) in other devices in the vicinity. Electromagnetic interference (EMI) is the interference caused by one electrical or electronic device…

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]]> What are EMS/EMC immunity lab tests? https://www.engineersgarage.com/what-are-the-ems-emc-immunity-lab-tests/ Sun, 02 Feb 2025 17:26:35 +0000 https://www.engineersgarage.com/?p=65845 EMC test is known as Electromagnetic Compatibility, a certification for electronic devices to maintain their limitation of electromagnetic waves. As discussed in the previous article, there are two types of EMC tests – emission (EMI) and immunity (EMS). EMI (Electromagnetic Interference) tests measure the magnetic waves emitted by the device, and EMS (Electromagnetic Susceptibility) tests…

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]]> What are some common EMI/EMC tests? https://www.engineersgarage.com/some-common-emi-emc-tests/ Sun, 02 Feb 2025 17:25:29 +0000 https://www.engineersgarage.com/?p=65687 An EMC test is known as Electromagnetic compatibility, a certification for electronic devices to maintain their limitation of electromagnetic waves. As discussed in the previous article, there are two types of EMC tests: emission (EMI) and immunity (EMS). EMI (Electromagnetic Interference) tests measure the magnetic waves emitted by the device, and EMS (Electromagnetic Susceptibility) tests…

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]]> How to perform an EMI/EMC pre-compliance test https://www.engineersgarage.com/how-to-perform-an-emi-emc-pre-compliance-test/ Sun, 02 Feb 2025 17:24:45 +0000 https://www.engineersgarage.com/?p=65940 EMC testing is essential to get a certification of Electromagnetic Emission and Immunity test before launching the product in the market. However, actual EMC tests are pretty expensive. Before going for the actual EMC test, the product should test in EMC pre-compliance test Lab. Pre-compliance testing will mimic all tests performed at EMI/EMC test labs…

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]]> EMS/EMC Pre-Compliance immunity test https://www.engineersgarage.com/ems-emc-pre-compliance-immunity-test/ Sun, 02 Feb 2025 17:23:35 +0000 https://www.engineersgarage.com/?p=66014 In the previous article, we learned about EMI/EMC pre-compliance test. EMS/EMC pre-compliance immunity test is required before the compliance test. EMS/EMC pre-compliance immunity test will give the confidence to pass the compliance test. The pre-compliance immunity test simulates all the tests done at the compliance test lab, but it is unnecessary to apply all the…

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]]> How to design a distance meter using ESP32 https://www.engineersgarage.com/how-to-design-a-distance-meter-using-esp32/ https://www.engineersgarage.com/how-to-design-a-distance-meter-using-esp32/#respond Tue, 21 Jan 2025 22:50:47 +0000 https://www.engineersgarage.com/?p=82427 The Internet of Things (IoT) has transformed how we interact with one another and our environment. As devices become smarter and more connected, do-it-yourself (DIY) projects have become increasingly popular. One such project involves developing a distance meter using the ESP32, a versatile microcontroller with built-in Wi-FI, Bluetooth connectivity, and diverse capabilities. This project highlights…

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]]> https://www.engineersgarage.com/how-to-design-a-distance-meter-using-esp32/feed/ 0 How to create an RFID-based locker system using Arduino https://www.engineersgarage.com/how-to-create-an-rfid-based-locker-system-using-arduino/ https://www.engineersgarage.com/how-to-create-an-rfid-based-locker-system-using-arduino/#respond Fri, 17 Jan 2025 10:00:42 +0000 https://www.engineersgarage.com/?p=82396 Need somewhere to secure a few items? No problem! In this project, we’ll design an RFID-based locker system that offers a reliable and convenient solution for securing objects using radio frequency identification (RFID) technology. Working operation: The RFID locker system The RFID reader scans a unique tag, and if it matches a pre-registered one, the…

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]]> https://www.engineersgarage.com/how-to-create-an-rfid-based-locker-system-using-arduino/feed/ 0 How to build a smart system using Arduino that alerts drivers of fatigue https://www.engineersgarage.com/how-to-build-a-smart-system-using-arduino-that-alerts-of-driver-fatigue/ https://www.engineersgarage.com/how-to-build-a-smart-system-using-arduino-that-alerts-of-driver-fatigue/#respond Mon, 11 Nov 2024 05:00:28 +0000 https://www.engineersgarage.com/?p=82084 Road safety is a critical concern, with driver fatigue and distractions among the leading causes of accidents. In this project, we’ll devise a smart system using Arduino UNO and a blink-eye sensor to monitor driver alertness. If the driver shows signs of drowsiness, the system takes proactive measures to prevent a potential accident. This includes…

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]]> https://www.engineersgarage.com/how-to-build-a-smart-system-using-arduino-that-alerts-of-driver-fatigue/feed/ 0 How to build a smart clock that measures temperature and humidity https://www.engineersgarage.com/how-to-build-a-smart-clock-that-measures-temperature-and-humidity/ https://www.engineersgarage.com/how-to-build-a-smart-clock-that-measures-temperature-and-humidity/#respond Wed, 30 Oct 2024 03:50:49 +0000 https://www.engineersgarage.com/?p=82052 These smart clocks, powered by the ESP8266 D1 Mini, offer more than just timekeeping. In addition to displaying the current time, they measure temperature and humidity, making them versatile tools for monitoring environmental conditions. Equipped with a DHT22 sensor, these clocks provide accurate air temperature and humidity readings, displayed alongside the time on a 1.8-inch…

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]]> https://www.engineersgarage.com/how-to-build-a-smart-clock-that-measures-temperature-and-humidity/feed/ 0 How to create holiday lights without programming knowledge https://www.engineersgarage.com/how-to-create-holiday-lights-without-programming-knowledge/ https://www.engineersgarage.com/how-to-create-holiday-lights-without-programming-knowledge/#respond Wed, 16 Oct 2024 03:50:12 +0000 https://www.engineersgarage.com/?p=81958 The holiday season is just around the corner. Although there’s no shortage of ready-made solutions for lighting up the Christmas tree, creating a personalized set of lights can get you in the holiday spirit. In this article, we’ll explore an easy way to design your own RGB lights for Christmas — without the need for…

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]]> https://www.engineersgarage.com/how-to-create-holiday-lights-without-programming-knowledge/feed/ 0 How to build a LoRa gateway using Raspberry Pi https://www.engineersgarage.com/how-to-build-a-lora-gateway-using-raspberry-pi/ https://www.engineersgarage.com/how-to-build-a-lora-gateway-using-raspberry-pi/#respond Mon, 16 Sep 2024 03:50:59 +0000 https://www.engineersgarage.com/?p=80346 As its name suggests, long-range wide-area network or LoRaWAN technology is widely used for long-range, low-power communication in Internet-of-things (IoT) applications. In this article, we’ll guide you through the process of connecting an SX130x 868M LoRaWAN Gateway Module to a Raspberry Pi 4 using hardware attached on top (HAT). This setup creates a LoRaWAN gateway,…

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]]> https://www.engineersgarage.com/how-to-build-a-lora-gateway-using-raspberry-pi/feed/ 0 How to make a smart dustbin using Arduino? https://www.engineersgarage.com/how-to-design-a-smart-dustbin-using-arduino/ https://www.engineersgarage.com/how-to-design-a-smart-dustbin-using-arduino/#respond Wed, 04 Sep 2024 03:50:49 +0000 https://www.engineersgarage.com/?p=81545 Smart technology refers to devices and systems that use advanced computing, connectivity, and data analytics to enhance functionality and efficiency. Devices such as smartphones, watches, and appliances connect to the Internet and one another via the Internet of Things (IoT), allowing for real-time data exchange and remote control. One innovative application of this technology is…

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]]> https://www.engineersgarage.com/how-to-design-a-smart-dustbin-using-arduino/feed/ 0 Best practices for securing LoRa networks https://www.engineersgarage.com/best-practices-for-securing-lora-networks/ https://www.engineersgarage.com/best-practices-for-securing-lora-networks/#respond Wed, 14 Aug 2024 03:50:56 +0000 https://www.engineersgarage.com/?p=81627 This article explains how to establish secure communication between two LoRa end-node devices using Lora E5 mini boards. LoRa, which stands for “long range,” is a wireless technology with the ability to send small amounts of data over large distances. Two end-node devices can exchange encrypted messages. The transmitting device encrypts the message before sending…

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]]> https://www.engineersgarage.com/best-practices-for-securing-lora-networks/feed/ 0 How to build an alcohol detector with the MQ3 gas sensor https://www.engineersgarage.com/how-to-build-an-alcohol-detector-with-the-mq3-gas-sensor/ https://www.engineersgarage.com/how-to-build-an-alcohol-detector-with-the-mq3-gas-sensor/#respond Wed, 26 Jun 2024 03:50:05 +0000 https://www.engineersgarage.com/?p=81297 Depending on the country, as many as 25 to 35% of motor vehicle accidents happen because of drunk driving every year. When drivers consume alcohol, they not only put themselves at risk but others on the road. Fortunately, such accidents are preventable with a combination of education, personal responsibility, and community efforts. There are also…

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]]> https://www.engineersgarage.com/how-to-build-an-alcohol-detector-with-the-mq3-gas-sensor/feed/ 0 How to design a heart-rate monitor using LoRa and Arduino https://www.engineersgarage.com/how-to-design-a-heart-rate-monitor-using-lora-and-arduino/ https://www.engineersgarage.com/how-to-design-a-heart-rate-monitor-using-lora-and-arduino/#respond Mon, 17 Jun 2024 03:50:51 +0000 https://www.engineersgarage.com/?p=81241 In this electronics project, we’ll design a healthcare solution over LoRa, using an Arduino Nano and a heart-rate sensor connected via the I2C bus. This device demonstrates the potential of the Internet-of-Things (IoT) in enhancing healthcare services and improving patient outcomes. The system measures a person’s heart rate in beats per minute (BPM) from a…

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