Circuit Digest

Circuit Digest

@circuitdigest

Circuit Digest is a leading platform for electronics and embedded systems content, dedicated to making technology simple and accessible. Our editorial team publishes hands-on tutorials, circuit designs, and technical guides covering Arduino, Raspberry Pi, IoT, robotics, and more. Whether you're a student, hobbyist, or professional, our goal is to help you build, learn, and innovate.

Joined Jul 2025 Last seen Mar 5, 2026
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Circuit Digest posted a new writeup in Technology Feb 28, 2026
Technology Building an Automatic Toll Gate System with Arduino and RFID

What This Project Is and Why It ExistsToll collection is one of those things that feels like it should have been automated a long time ago. Waiting in

Circuit Digest · 10 min read
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Circuit Digest posted a new writeup in Design Feb 28, 2026
Design A Simple Bluetooth Speaker You Actually Build Yourself

This project is about building a basic Bluetooth speaker from scratch using cheap, easy to find modules. No custom PCB. No microcontroller programming


Circuit Digest posted a new writeup in Technology Feb 28, 2026
Technology Building a WiFi GPS Tracker Without a SIM Card

Most DIY GPS trackers follow the same pattern. You add a GPS module to a microcontroller, then bolt on a GSM module and a SIM card so it can push loca


Circuit Digest posted a new writeup in Technology Feb 28, 2026
Technology An Offline ESP32 Text to Speech System

Text to speech sounds useful until you actually try building it on a microcontroller. Most examples look simple but end up depending on the internet i


Circuit Digest posted a new writeup in Technology Dec 13, 2025
Technology Making Solar Panels More Efficient with Dual Axis Tracking

Solar panels are great, but most of the time they are not used to their full potential. A typical panel is fixed at one angle while the sun keeps movi


Circuit Digest posted a new writeup in Technology Oct 29, 2025
Technology Building a UWB Indoor Positioning System using ESP32

Building a UWB Indoor Positioning System using ESP32 and Qorvo DWM3000If you have ever tried to track a robot, a moving tool, or a small drone indoors


Circuit Digest posted a new writeup in Technology Sep 3, 2025
Technology SR Latch Explained: Set, Reset, Gated, and Clocked Versions

An SR latch is one of the simplest memory circuits. It stores just one bit, either a 1 or a 0. The name comes from its two inputs: Set (S) and Reset (R).


Circuit Digest posted a new writeup in Technology Aug 6, 2025
Technology Why I Stopped Paying for GPS Tracking and Built My Own With Arduino

Why pay $25 a month to track your stuff when you can build your own GPS tracker with Arduino?


Circuit Digest posted a new writeup in Technology Jul 9, 2025
Technology RFID: Conveniently Insecure Since the Early 2000s

RFID technology offers convenience but creates security vulnerabilities. From skimming to cloning attacks, this analysis explores persistent RFID threats.