API Solutions

Many visually impaired people identify currency notes by touching them. But as people grow older, their touch sensitivity may gradually decrease, making it difficult to recognise the correct denomination accurately. Imagine an elderly shopkeeper in a small roadside store who has weak eyesight and struggles to identify the money given by customers. In such situations…

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…

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…

What if you could get an instant SMS alert the moment a fire or smoke is detected at home or office? Through this project tutorial, you can build a fire and smoke alarm system using Arduino UNO R4 that sends real-time SMS notifications. This means you will immediately get alerted even if you are far away.

In this Arduino Project, you…

Ever wished your Arduino could send you an SMS alert when something important happens—like an intruder detected by your DIY security system, or a gas leak in your kitchen? With just an Arduino UNO R4 and a few lines of code, you can make that happen—no expensive GSM module required.

In this tutorial, I’ll show you how to send SMS…

At Mobile World Congress 2025, Jio Platforms Limited with AMD, Cisco and Nokia, announced plans to launch a new Open Telecom AI Platform. This initiative is designed to support telecom operators and service providers by integrating real-world, AI-driven solutions into everyday network operations. The platform aims to enhance efficiency, security and create new…

At CircuitDigest, we've been creating and sharing Internet of Things (IoT) projects with our community for a long time. A crucial part of these projects is enabling communication between IoT devices and end users, and when it comes to simple notifications, nothing beats the practicality of sending an SMS.

However, sending an SMS from…

At CircuitDigest, we love experimenting with the ESP32-CAM projects, and today we're building a license plate recognition system with it. In this tutorial, we'll give you step-by-step instructions with circuit diagram and code to walk you through capturing an image of a car or bike, sending it to a cloud server that uses AI to recognize the license plate, and…

For this contest, I want to build something around edge AI and IoT. I also want this to tackle a real-world problem and be relevant to my interest i.e. IoT. So, I'm relating the theme to my interest in developing an Intelligent Farming System Using IoT and Edge AI, which can help solve the real-world problem of wasteful…

Hello everyone! In this project, we will create a voice-activated office assistant using the Maixduino board and generative AI technology.

The basic idea is simple: when the user asks a question using the Maixduino board's microphone, the device will capture the question, send it to a knowledge base (using basic data from the DigiKey…

​QR codes have become essential in our daily lives, from making UPI payments to sharing social media handles QR codes can now be found in almost every shop and business today. Integrating QR code scanning into our projects is a useful and practical feature that enables us to build many exciting projects like smart shopping cart projects, Vending machine projects etc. However, using traditional…

Digi-Key Electronics announced that it now offers a free eBook on the benefits of implementing Application Programming Interface (API) solutions, as well as a new ROI calculator to see the return on investment that implementing APIs can deliver.

Digi-Key’s APIs have long provided a complete digital platform for customers to automate and…