Resistors
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How to Build an Elderly Fall Detection System with XIAO ESP32-S3 When an ageing parent falls at home, the immediate injury is usually only half the danger. The real danger begins during the critical time they spend waiting on the floor for help. Lying immobile for extended periods can rapidly lead to severe dehydration, hypothermia, and muscle breakdown, even in homes where family members are regularly around. Expecting an injured… |
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Built an ESP32 Based Metal Detector System This tutorial shows us how to build our own functional DIY ESP32 metal detector from scratch using an affordable Wi-Fi enabled microcontroller, a handful of easily available electronic components, and a simple, hand-wound copper coil. Instead of relying on expensive, specialised sensors or complex industrial circuits, this PI metal detector circuit project uses… |
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DIY ESP32 WLED Controller: Step-by-Step Guide This DIY tutorial is all about making our home lighting smart and fun without any complicated steps. We can connect a standard 12V LED strip to a tiny wi-fi chip and build our own ESP32 WLED controller custom smart lighting system, which can be completely controlled from a smartphone or computer. This DIY ESP32 based WLED controller… |
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How to Make a Waste Detection Using ESP32-CAM with CircuitDigest Cloud In our day-to-day life, huge amounts of waste are generated in homes, streets, offices, and public places. But the real problem is not just collecting the waste; it is separating it correctly. When biodegradable waste like food waste and leaves gets mixed with non-biodegradable waste like plastic bottles and metal cans, recycling becomes difficult and environmental pollution increases. Manual… |
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Build a Simple Optocoupler Tester Circuit for Fault Detection Optocouplers frequently fail without a sound in labs or during repairs. The package appears to be undamaged, but there may be no output from the LED source or the photosensitive output stage. Testing for failure with a multimeter is only partially effective, whereas a dedicated optocoupler testing circuit provides clear results in just seconds. For related tutorials… |
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Vishay Introduces 0402 Case Size in CHA Series Resistors, AEC-Q200 Qualified Vishay Intertechnology has announced an expansion of its CHA series of thin film chip resistors. The resistors, being AEC-Q200 qualified, meet strict automotive reliability standards. The initial launch was in a 02016 case size, supporting up to 70 GHz, and the currently introduced model is in a 0402 case size. Though the frequency performance goes slightly down from up to 70GHz to… |
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Introduction to Optocouplers Have you ever heard the word isolation, especially in electronics? As you might guess, isolation is a key factor when it comes to optocouplers. Isolation is sometimes mandatory and sometimes an extra feature in circuits. Optocouplers are used in many electronic devices, from mobile electronics to household electronics. So, in this… |
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A Simple Automatic Plant Watering System without Microcontroller Nowadays, many people are turning towards green solutions to lead healthier lives. Efforts are being made to grow plants, which contribute to maintaining the stability of nature. The key challenge in growing plants is maintenance, particularly ensuring they receive adequate watering. Despite our best intentions, we may forget to water our plants at times. To address… |
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Measuring Turbidity of Water to Determine Water Quality using Arduino and Turbidity Sensor When it comes to liquids, turbidity is an important term. It plays an important role in liquid dynamics and is also used to measure water quality. Monitoring the quality of water is becoming increasingly necessary these days. So in this tutorial, let's discuss what turbidity is, and how to build the turbidity sensor Arduino. If you want to take this project further… |
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Interfacing Seven Segment Display with Arduino Nowadays, visual indication is a must-have feature for any electronic device, which will make user interaction much easier. There are multiple ways to implement the visual indication, from simple light indications to LCDs or even holograms. Today, we will be talking about such a device, which has been used in the industry for decades – the Seven Segment Display. The 7… |
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Building your own Sun Tracking Solar Panel using an Arduino The biggest crisis we are heading into is climate change due to excessive use of fossil fuels, and to overcome these issues, we have only one solution, which is utilising Renewable Energy. Renewable energy is a type of energy that is harnessed from nature without causing ill effects to the environment. One of the most prominent kinds of renewable energy is… |
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Easy To Build DIY Digital Multimeter using Arduino to Test Voltage, Resistance, LED, Diode and Continuity Discover how you can build a professional digital multimeter using Arduino that measures up to 24V DC voltage, checks resistance, conducts diode testing, and performs continuity tests. This comprehensive Arduino based multimeter project provides full circuit diagrams, programming code, and even a 3D printed enclosure design. A… |
