Author | Lightnews

CircuitDigest @circuitdigest.bsky.social · 8d

Understand the working principle of a clocked JK flip flop and its applications in digital electronics.
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Clocked JK Flip Flop: Complete Guide with Circuit, Truth Table, and Working

Learn how clocked JK flip flops work with truth tables, timing diagrams, and circuit designs. Understand toggle, set, reset operations for digital logic applications.

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CircuitDigest @circuitdigest.bsky.social · 8d

Build a high-accuracy indoor positioning system using the Qorvo DWM3000 UWB module and ESP32. This tutorial guides you through hardware setup, firmware flashing, and Python-based live visualisation.
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How to Build an UWB Indoor Positioning System using ESP32 and Qorvo DWM3000

Build a DIY UWB indoor positioning system using ESP32 with the Qorvo DWM3000. This tutorial walks you through hardware, firmware, and Python visualization to create accurate tracking for robotics and ...

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CircuitDigest @circuitdigest.bsky.social · Sep 22

Learn to build a #smartwearablependant that tracks #airquality with #STM32 and #SGP40 sensors, alerting users through #LEDs and #buzzer notifications for real-time environmental awareness.

How to build a Wearable Air Quality Monitor Pendant using STM32 & SGP40 Sensor

Build a low-power wearable air quality pendant using STM32 and SGP40 sensor to monitor TVOC levels with RGB LEDs, buzzer alerts, and real-time feedback, ideal for homes, offices, or industrial safety.

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CircuitDigest @circuitdigest.bsky.social · Sep 9

Learn how to interface an #ESP32 with a #thermalprinter
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using UART communication. This tutorial provides wiring diagrams and #Arduino-compatible code to print text, images, barcodes, and #QRcodes via the ESP32.

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CircuitDigest @circuitdigest.bsky.social · Aug 26

How to boot Raspberry Pi from USB without SD card

Learn how to #bootraspberrypi from #USB, including Pi 3B, 3B+, Pi 4, and Pi 5.
This complete guide walks you through #EEPROM updates, configuration steps, and for improved speed and reliability.
circuitdigest.com/tutorial/ras...

How to Boot Raspberry Pi from USB without SD Card

Learn how to boot Raspberry Pi from USB without using SD card. This step-by-step guide covers Raspberry Pi 3, 4, and 5 models, helping you improve system reliability and performance.

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CircuitDigest @circuitdigest.bsky.social · Aug 25

Learn how to build a real-time #GPStracker using the #RaspberryPiPico, #Neo-6MGPSmodule, and #SIM800L GSM modem.
circuitdigest.com/microcontrol...
It’s ideal for #IoT projects requiring #vehicletracking, #asset monitoring, or pet location tracking with automatic offline data buffering.

Build a Real-Time GPS Tracker with Raspberry Pi Pico & SIM800L GSM Module

Learn how to build a cellular GPS tracker with Raspberry Pi Pico using the Neo 6M GPS module and SIM800L. This hands-on guide covers interfacing, real-time data logging, and API-based location updates

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CircuitDigest @circuitdigest.bsky.social · Aug 20

Explore SR latch in digital electronics
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with its logic, truth table, circuit diagrams, and working explained using NOR and NAND gates for beginners.
#SRlatch #RSLatch #digitalelectronis #NOR #NANDgate

Understanding SR Latches: Complete Guide to Set-Reset Latch, Gated & Clocked Versions

Learn SR Latch basics with truth table, circuit diagrams & working principle. Covers basic, gated & clocked SR latch with NAND/NOR gates.

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CircuitDigest @circuitdigest.bsky.social · Jul 29

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ESP32-CAM Face Recognition using Edge Impulse

Learn how to implement a face recognition system using the ESP32-CAM and Edge Impulse. This guide covers dataset preparation, model training, deployment, and circuit connections for a simple and effec...

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CircuitDigest @circuitdigest.bsky.social · Jul 28

Explore step-by-step instructions to connect and decode GNSS data from the Goouuu Tech #GT-U16 #RTK L1/L5 module using #Arduino. circuitdigest.com/microcontrol...

Covering #UART interfacing, #NMEA sentence parsing, and extracting latitude/longitude for precision #GPSapplications.

Goouuu Tech GT-U16 RTK L1+L5 GPS Module with Arduino - Interfacing and Parsing GNSS Data

Learn how to interface the GT-U16 RTK L1+L5 GNSS module with Arduino, decode NMEA data, and analyze real-time satellite signals using iNavTool. Covers RTK concepts, RTCM corrections, and practical set...

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CircuitDigest @circuitdigest.bsky.social · Jul 28

circuitdigest.com/news/over-15...

Over 150 Humanoid Robots Showcased by Unitree, Deep Robotics, and Others at WAIC 2025

Over 150 humanoid robots were showcased at WAIC 2025 in Shanghai by Unitree, Deep Robotics, and others, highlighting China's rapid progress in AI-powered robotics.

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CircuitDigest @circuitdigest.bsky.social · Jul 28

circuitdigest.com/news/led-mat...

LED Matrix Display Project Uses ESP32 and Raspberry Pi Platforms

Learn how a developer built a customizable LED matrix display using ESP32 and Raspberry Pi platforms. Detailed comparison of both controllers, firmware options, and open-source code for DIY smart disp...

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CircuitDigest @circuitdigest.bsky.social · Jul 28

circuitdigest.com/news/arduino...

Arduino Introduces Nano R4 Featuring RA4M1 MCU, Built for Space-Constrained Applications

Arduino unveils the Nano R4, a compact development board powered by the RA4M1 microcontroller, designed for space-constrained projects and compatible with Arduino tools and the wider RA4M1 ecosystem.

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CircuitDigest @circuitdigest.bsky.social · Jul 26

Struggling with your #RaspberryPi ’s changing IP address?

Learn how to set a static IP using the latest method with #NetworkManager and #nmcli, especially for Raspberry Pi OS Bookworm.

How to Set a Static IP Address on Raspberry Pi?

Learn how to set a static IP on Raspberry Pi using NetworkManager (nmcli) and GUI methods. Complete step-by-step guide for Raspberry Pi OS Bookworm with screenshots and troubleshooting tips.

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CircuitDigest @circuitdigest.bsky.social · Jul 25

Face Recognition on ESP32-CAM? Yes!

This project uses Edge Impulse to train a lightweight face recognition model and runs it on ESP32-CAM, complete with live OLED output.

🛠️ Full guide 👉 circuitdigest.com/projects/esp...

#EdgeImpulse #ESP32 #FaceRecognition #AIProjects #EmbeddedML #DIYTech #AI

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CircuitDigest @circuitdigest.bsky.social · Jul 21

Whether you're building your first robot or exploring new concepts, each of these projects offers hands-on experience with real engineering logic.

𝐖𝐡𝐢𝐜𝐡 𝐨𝐧𝐞 𝐰𝐨𝐮𝐥𝐝 𝐲𝐨𝐮 𝐛𝐮𝐢𝐥𝐝 𝐟𝐢𝐫𝐬𝐭?

#Robotics #Arduino #DIYProjects #LearnByBuilding #EngineeringSkills

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CircuitDigest @circuitdigest.bsky.social · Jul 21

5. 𝐌𝐚𝐳𝐞-𝐒𝐨𝐥𝐯𝐢𝐧𝐠 𝐑𝐨𝐛𝐨𝐭
Teach your bot to navigate and solve mazes using basic sensors and logic.
🔗 circuitdigest.com/microcontrol...

How to Build a Maze Solving Robot Using Arduino

Learn how to create a simple maze-solving robot with Arduino, IR sensors, and the "Hand on Wall Rule" algorithm. Step-by-step guide on designing, assembling, and programming an autonomous robot for ma...

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CircuitDigest @circuitdigest.bsky.social · Jul 21

4. 𝐒𝐦𝐚𝐫𝐭 𝐕𝐚𝐜𝐮𝐮𝐦 𝐂𝐥𝐞𝐚𝐧𝐞𝐫 𝐑𝐨𝐛𝐨𝐭
Create your own automatic floor cleaner using Arduino, motors, and sensors.
🔗 circuitdigest.com/microcontrol...

Build your own Arduino based Smart Vacuum Cleaner Robot for Automatic Floor Cleaning

The Arduino Vacuum Cleaner we are going to build here will be compact and more practical, and this robot will have ultrasonic sensors and an IR proximity sensor.

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CircuitDigest @circuitdigest.bsky.social · Jul 21

3. 𝐆𝐞𝐬𝐭𝐮𝐫𝐞-𝐂𝐨𝐧𝐭𝐫𝐨𝐥𝐥𝐞𝐝 𝐑𝐨𝐛𝐨𝐭
Wave your hand to control your robot—no buttons, just an accelerometer and Arduino magic.
🔗 circuitdigest.com/microcontrol...

Gesture Controlled Robot Using Arduino

Create an enchanting gesture-controlled robot with Arduino! Follow a detailed tutorial using components like MPU6050 Accelerometer, nRF24L01 Transmitter, and more. The tutorial provides a circuit diag...

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CircuitDigest @circuitdigest.bsky.social · Jul 21

2. 𝐒𝐦𝐚𝐫𝐭 𝐖𝐚𝐬𝐭𝐞 𝐒𝐨𝐫𝐭𝐢𝐧𝐠 𝐑𝐨𝐛𝐨𝐭 (𝐰𝐢𝐭𝐡 𝐌𝐋 + 𝐒𝐂𝐀𝐑𝐀)
Train a SCARA arm to sort waste using machine learning—automation meets sustainability.
🔗 circuitdigest.com/videos/waste...

Waste Classification Using Machine Learning and Robotic Arm

Learn an innovative solution to automate waste segregation using a SCARA Robot, powered by Raspberry Pi, a USB camera, and Roboflow's waste classification API for precise sorting with computer vision ...

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CircuitDigest @circuitdigest.bsky.social · Jul 21

1. 𝐁𝐢𝐩𝐞𝐝 𝐂𝐚𝐭𝐁𝐨𝐭 (𝐖𝐚𝐥𝐤𝐢𝐧𝐠 + 𝐃𝐚𝐧𝐜𝐢𝐧𝐠 𝐑𝐨𝐛𝐨𝐭)
Build a fun, Arduino-powered two-legged robot that can walk and even dance with personality.
🔗 circuitdigest.com/microcontrol...

Biped Catbot: Walking and Dancing Robot using Arduino

Catbot is a remarkable two-legged robot built on the Arduino Nano. It utilizes five servo motors, with two dedicated to each leg and one controlling its head movements. Additionally, it employs an ult...

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CircuitDigest @circuitdigest.bsky.social · Jul 21

🔧 𝐋𝐞𝐚𝐫𝐧 𝐑𝐨𝐛𝐨𝐭𝐢𝐜𝐬 𝐛𝐲 𝐁𝐮𝐢𝐥𝐝𝐢𝐧𝐠 𝐓𝐡𝐞𝐬𝐞 5 𝐏𝐫𝐨𝐣𝐞𝐜𝐭𝐬
circuitdigest.com/robotics-pro...
Getting into robotics doesn’t mean you need complex math or expensive hardware.

If you’re a student, hobbyist, or engineer looking to get hands-on, these are worth bookmarking 👇

75+ DIY Robotics Projects - Build Your Own Robots with Step-by-Step Tutorials!

Explore 75+ DIY robotics projects with step-by-step tutorials, circuit diagrams, and source code. Learn and build your own robots, from beginner to advanced, using Arduino, Raspberry Pi, and more.

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CircuitDigest @circuitdigest.bsky.social · Jul 15

Build your own #Arduino-based #GPSTracker using the #A7672S module with 4G LTE and GNSS support.

This guide walks you through setup, circuit, and real-time data tracking, perfect for #IoT projects on the move. circuitdigest.com/microcontrol...

CircuitDigest @circuitdigest.bsky.social · Jul 9

Interfacing TMC2209 Stepper Motor Driver with Arduino UNO – Basic Direction and Stepping Control

This tutorial explains pin mapping, basic stepping, and direction control using simple digital outputs. circuitdigest.com/microcontrol...

TMC2209 Stepper Motor Driver with Arduino UNO Pinout

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CircuitDigest @circuitdigest.bsky.social · Jun 30

circuitdigest.com/news/ai-robo...

AI Robots Play Football Without Human Control in Beijing Tournament

Humanoid robots powered by AI played an autonomous football match in Beijing, showcasing agility, decision-making, and machine autonomy without human control.

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CircuitDigest @circuitdigest.bsky.social · Jun 28

Learn to create a #DIY #RFID attendance system with #Arduino that tracks check-ins, stores timestamps, and displays data on an LCD. A hands-on way to master SPI, I2C, and EEPROM usage.

Read more : circuitdigest.com/microcontrol...

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