Internet of Things
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How to Build a Face Detection System Using a Raspberry Pi and CircuitDigest Cloud When we see movies, we often see scenes where a villain uses a gun with a face detection system that automatically targets a person accurately. It may look like a very complex technology that is difficult to build on our own, right? Not anymore. Building a face detection system using a Raspberry Pi might sound like something out of a Hollywood thriller, but it… |
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How Can You Get and Use an M2M IoT SIM Card in India? If you are working on IoT projects, you already know the importance of an M2M IoT SIM card for remote monitoring and tracking. For those who are new and wondering why you need a special M2M SIM card when you can just use your normal SIM card, here are two strong reasons to consider one. Cost: If you are running a… |
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What Happens When You Build a Private Network Just to Track Cows? A development team recently built a custom long-range livestock tracking system designed specifically for farms located in mountainous regions with poor cellular coverage. Instead of relying on standard GPS trackers that require 4G connectivity, the project uses a private LoRa-based communication network to help farmers monitor cattle positions in real time. The complete setup consists of… |
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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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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… |
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Raspberry Pi Pico Based Rain Detection System with WhatsApp Alert This project shows how to send instant WhatsApp alerts from a Raspberry Pi Pico W using WiFi and CircuitDigest Cloud WhatsApp API. The Pico W reads data from a rain sensor and, when moisture is detected, sends a notification directly to your WhatsApp. No GSM module, SIM card, or cellular hardware is required and everything works over a secure HTTPS request. The same WhatsApp notification… |
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How to Send WhatsApp Messages from Arduino Uno R4 Wifi Board In this tutorial, you will learn how to send WhatsApp messages from Arduino UNO R4 WiFi using the CircuitDigest Cloud Whastapp API. Instead of using a GSM module, SIM card, or complex WhatsApp Business API setup, this method allows your Arduino to send alerts over WiFi using a simple HTTPS request. This makes it much easier and more cost-effective to add real-time… |
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How to Send WhatsApp Messages from ESP32 This ESP32 WhatsApp notification project shows how to send real-time WhatsApp alerts directly from an ESP32 using WiFi and the CircuitDigest Cloud WhatsApp API. The ESP32 reads sensor data, checks for a defined condition such as high temperature or motion detection, and immediately pushes a WhatsApp alert to your phone. And the best part is, you do not need a… |
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DigiKey and Arduino Host Prototyping Webinar THIEF RIVER FALLS, Minn., USA – DigiKey, the global distribution leader of electronic components and automation products, announces an upcoming webinar, “From board to build: Using UNO Q and App Lab,” which will take place Feb. 12, 2026, at 9 a.m. CST. The webinar, sponsored by Arduino, will explore how Arduino’s UNO Q and App Lab work together to accelerate prototyping, enable… |
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AgriSafe Rot-Spotter: A Multi-Modal Edge-AI System for Early Post-Harvest Spoilage Detection By Shreerama T D Every year, farmers work for months under the sun, investing their time, money, and effort to grow crops that feed the nation. But after harvesting, a painful reality unfolds a significant portion of onions and tomatoes never reach the market. Instead, they silently rot inside storage warehouses. … |
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DoseRight - Smart Automatic Medicine Manager By Aditya Shekhar Das Medication adherence is one of the most critical challenges in modern healthcare. Patients with chronic conditions often need to take multiple medicines at specific times every day. Missing doses, taking incorrect medicines, or double dosing can reduce treatment effectiveness and in severe cases lead to serious… |
