IoT
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ESP32 Interactive Voice Response (IVR) System with GeoLinker Integration Nowadays, automation has become a common part of our daily lives. From simple tasks like operating a coffee machine to creating code for complex applications, many processes are now automated. However, most systems used for controlling devices depend on internet connections, mobile applications, or cloud platforms. In many places, internet availability may be poor or… |
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How to Use ESP32-CAM for Attendance System using CircuitDigest Cloud Nowadays, everything is rapidly transitioning into the digital world, from the way we communicate to how industries operate and services are delivered. Traditional methods that once relied on manual processes are now being replaced by smart, automated, and interconnected systems. Building an automated attendance system using ESP32-CAM is a practical, affordable way… |
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Automatic Waste Segregation System Using Arduino UNO Q Proper waste sorting is very important for keeping our neighbourhoods clean and saving resources for the future. When we mix food scraps, plastic, paper, and batteries in the same bin, recycling becomes hard, landfills fill up quickly, and harmful chemicals leak into the soil and water. Over time, this creates bigger problems like higher cleanup costs and more damage… |
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Nordic Semiconductor Launches nRF54L Series with Entry-Level Bluetooth LE SoCs Nordic Semiconductor launched its nRF54L Series in April 2023 as a wireless platform for IoT devices. Now, the company is expanding the same nRF54L series with the launch of two new entry-level Bluetooth LE SoCs - the nRF54LS05A and the nRF54LS05B, targeting cost-sensitive IoT applications. This launch was announced at the Embedded World 2026 on March 9. These ultra-low-power chips are… |
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Getting Started with Arduino UNO Q - Beginners Guide From blinking LEDs to building robots, the Arduino UNO was the development board that made electronics feel possible for students, professionals and a lot of hobby makers around the world. While keeping the familiar idea of Arduino UNO and its form factor the same, they have launched this board called the Arduino UNO Q, which is a more capable variant of the original… |
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ESP32 Bluetooth Jammer Using Dual NRF24L01 Modules Bluetooth communication is everywhere. Due to its low power consumption, we can see it in a lot of our day-to-day gadgets. Behind the scenes, it's all about signals. Let’s explore what really happens when data is transmitted or disturbed via Bluetooth. This project is based on an ESP32 and two NRF24L01 modules, and we are going to learn how we can generate a 2.4 GHz… |
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How to activate Airtel M2M IoT SimCard with Geolinker ESP32 Airtel M2M IoT SIM Activation – Quick Overview Log in to Circuit Digest Cloud & open the GeoLinker dashboard Enter ICCID and mobile number, verify OTP. Submit KYC documents (within 7 days) KYC verified by Airtel Whitelist up to 4 numbers for SMS/Voice Table of Contents What is an Airtel M2M SIM Card? Accessing the Airtel M2M SIM Dashboard on Circuit Digest Cloud Step 1 ⇒ How… |
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How to Build Smart Grid in IoT Using Arduino UNO R4 WIFI Electrical energy is no longer treated as an unlimited utility. Every watt consumed has a cost impact, an efficiency implication, and in many cases a safety consequence. A smart grid in IoT is not a complicated buzzword. It simply means that electrical infrastructure is monitored continuously, data is collected in real time, and decisions are made based on measured… |
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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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How to Send Email Notifications using ESP32-CAM In recent years, the demand for smart security and automated monitoring systems has increased significantly due to growing safety concerns and the need for real-time surveillance. Traditional security systems often require continuous human supervision, which can be inefficient and time-consuming. With the advancement of embedded systems and Internet of Things (IoT)… |
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Rohde & Schwarz and Broadcom showcase first Wi-Fi 8 RF signaling tests, paving way for next-gen connectivity Rohde & Schwarz, in collaboration with Broadcom, will display its CMX500 multi-technology multi-channel signaling tester at MWC Barcelona 2026 with newly added Wi-Fi 8 (IEEE 802.11bn) testing capabilities. The setup at the Rohde & Schwarz booth (5A80) will validate a prototype Wi-Fi 8 device from Broadcom, showcasing physical layer features unique to Wi-Fi 8. Addressing UHR… |
