I designed and built an RC ship using a 3S battery and a 1400KV brushless motor, with a custom-made drive shaft from a modified concrete nail, Arduino-NRF control system, and waterproofed components

Uma torneira pensada para facilitar manutenção, adaptação e montagem industrial, com design desmontável, vedação precisa e alavanca ergonômica de alto desempenho.

Body Of Rockie Warrior

A device that receives data through RS232 and sends it wirelessly via Bluetooth.

Part Of Rockie Warrior

A LoRa transceiver dongle is a compact USB device equipped with a LoRa (Long Range) radio communication module.

This DIY electronics project demonstrates how to build an air/gas quality monitoring system using an Arduino, an MQ‑2 gas sensor, and an I2C LCD display. The setup detects gas concentrations such as LPG, CO, and smoke, and continuously displays real‑time levels on the LCD.

This project aims to accelerate the process of identifying soil density values from the subgrade, subbase, and base course layers by integrating vibration, speed, and acceleration sensors connected to an Arduino Mega 2560 microcontroller. The data generated enables real-time monitoring and adjustment during the compaction process in accordance with SNI (Indonesian National Standard) 1738-2011.

This project presents a complete smart home system based on the ESP32 microcontroller, designed for both functionality and educational use. The system integrates several components: - A keypad-controlled servo door lock system - Remote control of home elements via the Blynk IoT application - A curtain controlled by a DC motor (push-button logic via mobile) - An ultrasonic-based automatic garage door system - A DHT11 sensor for real-time temperature monitoring - LED and buzzer indicators for visual/audio feedback All components are connected and managed using ESP32, allowing wireless control and automation through WiFi.

An innovative, low-cost, and durable front suspension design that delivers smoother, safer, and more enjoyable bike rides

This is a real-time GPS tracking project built around the NodeMCU ESP8266 module and a Neo‑6M GPS module, powered by Wi-Fi rather than cellular networks

A Smart Hiking Stick that can help the visually impaired navigate and stay safe, that also provides tons of additional utility for any user.

Rockie’s Warrior is more than a keychain—it’s a pocket-sized guardian with bold style and fearless spirit. With its striking blue helmet, shield emblem, and battle-ready stance, it adds personality and strength to your everyday essentials. Clip it on your keys, bag, or desk and carry adventure wherever you go.”

LR1262 Long-Range LoRa Wireless Transceiver with AVR32DA48 Microcontroller

Imagine a laboratory where valuable equipment is at risk because traditional locks offer no traceability. Anyone can enter, and if something goes missing, there’s no way to know who was last inside. We designed a smart solution: an IoT-based door security system using NodeMCU ESP8266 and RFID technology that reads electronic ID cards (e-KTP) as access keys. When a user taps their e-KTP & KTM (Student Card) on the RFID reader, the system verifies the unique ID, unlocks the door automatically, and logs the access in real-time to both a local database (XAMPP) and Google Spreadsheet. This system enhances security, enables instant user tracking, and leverages a national ID that everyone already owns—making it cost-effective and easy to implement. It’s not just a smart lock; it’s a secure, traceable, and scalable access control system for laboratories, offices, or dormitories. With this innovation, we move from blind access to intelligent, data-driven security.

"A smart IoT-based system that monitors and controls temperature and humidity in real-time, combining precision, automation, and remote accessibility in one compact device."