Intermediate Projects

Build an environmental weather station with the Raspberry Pi Pico W. Acquire temperature and humidity metrics from a digital DHT22 sensor, render a real-time 128x64 dashboard on an SSD1306 OLED display, and stream JSON telemetry.

Construct a multi-zone environmental safety telemetry hub using the Arduino Mega 2560. Reads temperature, humidity, and ambient light across multiple rooms and displays real-time safety metrics on a large 20x4 I2C LCD screen.

Construct an electronic PIN security access system using an Arduino Mega. Features a 4x4 matrix keypad, masked PIN entry on an I2C LCD1602 display, dual-color LED status indicators, and buzzer audio feedback.

Build a two-axis camera mount or pointer using an Arduino Mega, an analog thumb joystick, and two micro servos. Move the joystick to turn left, right, up, and down in real time.

Read 8 parallel switches on a DIP switch and mirror their binary state onto an LED bar graph using an Arduino Mega. Learn how microcontrollers read digital buses, use internal pull-up resistors, and pack bits into a byte.

Build a compact temperature monitor using an ATtiny85 microcontroller, an NTC temperature sensor, an LED, and a buzzer. When the temperature gets too hot, the LED flashes and the buzzer sounds an alert.

Turn an analog knob to steer an SG90 servo motor smoothly from 0 to 180 degrees. Learn how microcontrollers read knob angles and generate precision timing pulses without external libraries.

Cycle an RGB LED through solid red, green, blue, and an animated color strobe using a single push button. Learn how multi-color LEDs mix light and how to build a clean multi-state controller with an 8-pin microcontroller.