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// Learn electronics and microcontroller projects with Circuitrocks – tutorials for Arduino, ESP8266, ESP32, Raspberry Pi and more. Join our community.

HC-SR04 Ultrasonic Sensor | A Beginner’s Guide
arduino

HC-SR04 Ultrasonic Sensor | A Beginner’s Guide

Need a simple way to make your Arduino “sense” if something is in front of it? The HC-SR04 Ultrasonic Sensor is a beginner-friendly module…

Jomar Zabala Jul 25, 2026
ACEBOTT 4WD + Gloves | ESP32 Project Idea
esp32

ACEBOTT 4WD + Gloves | ESP32 Project Idea

What if your robot car could respond to your hand gestures instead of using a normal remote controller? The ACEBOTT 4WD + Gloves ESP32…

Gian Salvadora Jun 30, 2026
ESP32 OLED Mini Shooter Game | Project Tutorial
esp32

ESP32 OLED Mini Shooter Game | Project Tutorial

Want to turn a small ESP32 board into a mini arcade game you can actually play? This ESP32 OLED Mini Shooter Game uses a…

Gian Salvadora Jun 25, 2026
ACEBOTT ESP32 Smart Car Starter Kit | A Beginner’s Guide
esp32

ACEBOTT ESP32 Smart Car Starter Kit | A Beginner’s Guide

Want to build a robot car without guessing which parts work together? The ACEBOTT ESP32 Smart Car Starter Kit gives beginners a ready path…

Jomar Zabala Jun 16, 2026
PCA9685 16Ch Servo Driver | A Beginner’s Guide
arduino

PCA9685 16Ch Servo Driver | A Beginner’s Guide

Ever tried moving several servos and the motion turns shaky or uneven? The PCA9685 16Ch Servo Driver helps by generating clean servo pulses on…

Jomar Zabala May 25, 2026
Sensor Shield V5.0 | A Beginner’s Guide
arduino

Sensor Shield V5.0 | A Beginner’s Guide

Ever wanted to plug in servos like LEGO - no messy jumper wire jungle? The Sensor Shield V5.0 makes that happen by giving you…

Jomar Zabala May 22, 2026
QTR-8RC Reflectance Sensor Array | A Beginner’s Guide
electronic modules

QTR-8RC Reflectance Sensor Array | A Beginner’s Guide

Want your robot to “see” a line without using a camera or heavy image processing? The QTR-8RC Reflectance Sensor Array gives you eight reflectance…

Jomar Zabala May 9, 2026
Fingerprint Sensor AS608 | A Beginner’s Guide
arduino

Fingerprint Sensor AS608 | A Beginner’s Guide

One touch can replace keys. This project uses an optical fingerprint sensor to enroll users and then grant access with a quick scan. When…

Jomar Zabala Apr 24, 2026
Thumb Joystick | A Beginner’s Guide
arduino

Thumb Joystick | A Beginner’s Guide

Ever wished your Arduino could “talk back” when you move a joystick? In this tutorial, you will build a clean direction viewer that prints…

Jomar Zabala Mar 28, 2026
Motor Drive (BTS7960 43A) | A Beginner’s Guide
arduino

Motor Drive (BTS7960 43A) | A Beginner’s Guide

Don’t wait until your full project is done to find out your BTS7960 43A motor driver has a problem. A fast bench test can…

Jomar Zabala Feb 21, 2026
Raspberry Pi Pico (RP2040) | A Beginner’s Guide
programming

Raspberry Pi Pico (RP2040) | A Beginner’s Guide

If you’re coming from Arduino Uno, the Raspberry Pi Pico can feel confusing at first - especially when it doesn’t immediately show a COM…

Jomar Zabala Feb 6, 2026
External LED via Wi-Fi | ESP32 Mini Guide
esp32

External LED via Wi-Fi | ESP32 Mini Guide

Tap a button on your phone and watch an LED light up across the room. This External LED via Wi-Fi turns an ESP32 into…

Jomar Zabala Jan 31, 2026
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