This project demonstrates how to convert a standard bicycle into a high-performance electric bike (e-bike) capable of reaching speeds up to 50 km/h. It involves integrating an electric motor, battery system, throttle controller, and other essential electronics. The project blends mechanical engineering, electrical systems, and DIY fabrication skills to build a cost-effective and powerful personal transportation solution.

MicroBlocks is the only LIVE blocks-based programming language for microcontrollers, making it the most intuitive and easy to use tool for getting started in advanced STEM projects! The goal of "STEM 4 All" is to create a LoRaWAN library for MicroBlocks along with a STEM tutorial explaining how to leverage LoRa on this hardware for long-range wireless applications. The tutorial will also cover use of Wi-Fi and BLE for ease of tackling shorter range and higher-bandwidth use cases (Wi-Fi and BLE libraries for ESP32 are already well-supported by MicroBlocks).

This DIY system is designed to detect motion using a PIR sensor and notify the user via the Blynk mobile app. It uses a NodeMCU (ESP8266) as the core IoT microcontroller, connecting wirelessly to your home network to send real-time alerts whenever motion is detected

In today's world of smart living, automation is increasingly becoming a part of our everyday lives. This project focuses on building a simple yet effective home automation system using an Arduino microcontroller and a standard infrared (IR) TV remote. The goal is to allow users to control electrical appliances like lights and fans remotely without modifying the remote or using expensive smart devices. By leveraging IR technology, this project demonstrates how a basic remote control can be repurposed to switch household devices on and off through the use of an IR receiver module and relay circuits. It is a cost-effective, beginner-friendly, and highly educational project ideal for electronics enthusiasts, students, and DIY hobbyists seeking to explore embedded systems and automation.

An IoT-based automated plant watering and notification system using a NodeMCU (ESP8266). The system monitors soil moisture levels via a sensor, and when dryness is detected, it notifies the user through the Blynk app. Optionally, it can activate a water pump or grow light via a relay module to irrigate plants automatically.

This project demonstrates a basic electronic security system using an Arduino Uno, a 4x4 keypad, and a relay-controlled electric lock. When a predefined PIN code is entered correctly on the keypad, the Arduino activates a relay that unlocks the door for a short duration, then automatically locks it again. If an incorrect code is entered, access is denied. This system can be expanded with features like an LCD display, buzzer alerts, multiple user PINs, and tamper detection.

The heart of the project is the CrowPanel Advance, a compact and versatile device with esp32 that serves as the assistant's user interface. It's connected via WiFi to a dedicated AI server that I set up on an old laptop, which runs the Ollama software. This is the magic part: Ollama allows me to run powerful large language models locally, so all the processing happens right there.

This is a no-code smart home automation system built around the NodeMCU ESP8266 and a 4‑channel 5 V relay module, configured through the Cadio mobile app—no firmware coding required

A portable, GPS-enabled device to measure river water quality at multiple city locations, storing data for later mapping and analysis, built with low-cost sensors and an ESP32 board.