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Inside the ESP32-2424S012C Development Board: Exploring the Hardware Teardown This is the teardown tutorial of ESP32-2424S012C, an ESP32 C3-based development board with an integrated display. This device comes in very handy, as it has our favourite ESP32-C3 onboard, a 1.28” IPS Capacitive Touch Screen display with a 240×240 px resolution. The coolest thing about this is that it can be custom-programmed to our specifications using a wide range… |
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Build an ESP32 GSM Calling Device with Auto Answer Using GeoLinker In this project, we build a complete ESP32 GSM voice calling device using the GeoLinker GL868 board. The main idea of this project is very simple. When we press a push button connected to the ESP32 board, it will automatically call a fixed phone number. Also, if someone calls the SIM card inside the module, the call will be automatically attended, and we can talk… |
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How to Use ESP32-CAM for Face Detection Using CircuitDigest Cloud Have you ever watched a movie where a system instantly detects a person’s face, like in security doors or smart targeting systems, and thought, “This looks too complex to build in real life?” It might seem like something only high-end systems can do, but the reality today is very different. With compact and powerful modules like the ESP32-CAM, building an ESP32-CAM… |
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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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ESP32 Speech-to-Text using Wit.ai In this project, we’ll be learning how to build an ESP32 Speech to Text system using an ESP32 development board. We’ll use an I2S MIC to record speech and an OLED display to display the converted text. In addition to the display, the text will also appear in the serial monitor. Since ESP32 cannot run a Speech recognition model locally due to its hardware… |
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How to Send an Image on WhatsApp Using ESP32-CAM We use WhatsApp almost every day so much that it has become an unavoidable part of our routine. From a simple “good morning” message to a friend to a “good night” text to family, most of our daily communication happens through it. Beyond just messages, we constantly share moments from our lives by capturing photos on our phones and instantly sending them to others.… |
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Build a Speaking Alarm Clock Using the XIAO ESP32-S3 Traditional alarm clocks have remained fundamentally unchanged for decades. The ESP32 speaking alarm clock built in this tutorial replaces the beep at a scheduled time and expects the user to interpret the reason for the beep. While functional, this approach lacks intelligence and context. Modern embedded systems enable the creation of smarter devices that… |
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DIY Handheld Arduino Game Console With 10 Retro Games Tired of building the same old Arduino projects like blinking LEDs, temperature monitors, and line-following robots? Now it’s time for something fun. It’s time to turn your skills into entertainment by creating your very own Arduino game console project. Instead of just testing circuits, imagine powering up a device you built yourself and jumping straight into… |
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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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DIY Raspberry Pi Pico Text-to-Speech Using Wit.ai Text-to-Speech, or TTS, is a technology that converts written text into spoken audio. It is widely used in voice assistants, accessibility tools, alert systems, kiosks, and smart devices. On computers and smartphones, TTS works smoothly because these systems have enough processing power and memory to handle speech generation locally. Microcontrollers are different.… |
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Interfacing GP2Y0D80Z0F Distance Sensor with Arduino Uno In this project, we integrate the GP2Y0D810Z0F distance sensor to the Arduino UNO and display the detection result on the 16x2 I2C LCD screen and the Serial Monitor. The sensor is designed for quick on and off detection within a set distance of about 10 cm. This is great for detecting obstacles, sensing presence, and handling simple automation jobs. At the end of… |
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NeuroBand: The Smart Safety Band By Kartik Khandelwal Core Purpose: NeuroBand is a specialized smart safety armband engineered to provide timely assistance to elderly and high-risk individuals during emergencies. Its primary goal is to mitigate the risks associated with falls and medical crises while simultaneously addressing the industry-wide challenge of frequent false alarms.The Global Context of Falls: Global… |
