Projects using this component
OLED T-Rex Run: Arduino Dinosaur Game 🦖
We brought the legendary "No Internet" dinosaur game to hardware! Turn the excitement of retro gaming into a physical mini console with this project we developed using Arduino, OLED display (SH1106/SS
Pong Game - SSD1306
The classic Pong game built using Arduino and SSD1306 OLED display, equipped with an autonomous artificial intelligence (CPU) opponent that instantly tracks the ball's movements and reacts according t
ESP32 HTTPClient + Weather API (with SSD1306 OLED Display)
In this project, we use the ESP32 to make a REST API call to a weather API (wttr.in) over the internet using `HTTPClient.h`. Unlike the previous I2C LCD version, we’re using an SSD1306 OLED (128×64) display here—which allows for large fonts, vector icons, and rich visual presentation on a single screen. Seven different vector icons for weather conditions (sunny, partly cloudy, cloudy, rainy, snowy, stormy, foggy) are drawn at runtime (no bitmap files required). The temperature is displayed in th
ESP32 Deep Sleep — Battery Saving (OLED + RTC RAM Counter)
The ESP32's Deep Sleep mode reduces current consumption to ~10 µA by shutting down the CPU and most peripherals, making it critical for battery-powered IoT devices. In this project, we use three different wake-up sources: a timer (15 seconds), an external pin (EXT0 — button GPIO 33), and touch (T0/GPIO 4). Variables marked with `RTC_DATA_ATTR` are preserved during deep sleep—the boot counter, timer wake counter, and button wake counter are continuously tracked. On each wake-up, the SSD1306 OLED
ESP32 Prayer Rakat Counter (HC-SR04 + SSD1306 OLED + 2 Buttons)
Do you sometimes forget how many rak’ahs you’ve prayed while performing salat? This project creates a rak’ah counter that is placed next to your prayer mat and counts your prostrations when you bring your hand close to it. The HC-SR04 ultrasonic distance sensor detects hand proximity, the SSD1306 OLED display shows the rak’ah count, and you can select 2, 3, or 4 rak’ahs and reset the count using two buttons. It features a smart state machine with a 2.5-second debounce and a “hand-away” algorithm
ESP32 RFID Door Lock (RC522 + Servo + OLED + Buzzer + LED)
We’re building a smart door lock using an ESP32, an RC522 RFID module, an SG90 servo motor, an SSD1306 OLED display, an active buzzer, and 2 LEDs. When a card is scanned, its UID is compared to the list of authorized cards stored in the code—if authorized, the servo motor rotates to unlock the door (green LED + 2 short beeps), and the door automatically locks again after 5 seconds. For an unauthorized card, the red LED lights up, a warning is given with 3 rapid beeps, and the captured UID is dis
ESP32 Color Mixer Light (3 Potentiometers + RGB LED + OLED)
A smart color-mixing lamp that lets you mix any color you want by turning three potentiometers with the ESP32! As you turn the red, green, and blue potentiometers, the common-cathode RGB LED changes color in real time. The SSD1306 OLED display shows real-time values for each color in the 0–255 range, visual fill bars, and the HEX web color code (such as #FF8040). A mini professional color studio—teaches RGB color theory, ADC analog reading, brightness control via PWM, and I2C display design all
ESP32 Smart Lighting (PIR + LDR + Relay + OLED)
Turn your hallway, bathroom, or pantry into smart lighting with ESP32! Using a PIR motion sensor, LDR light sensor, and a relay module, we build the classic "light turns on when motion is detected in the dark" scenario — if the environment is already bright, motion does NOT trigger the light, saving energy during the day. The light stays on for 30 seconds; if motion continues, the timer resets and the light stays on longer. The SSD1306 OLED shows large-font status (ON / DAYTIME / WAITING), a cou
ESP32 Parking Sensor (HC-SR04 + 5-LED Bar + Buzzer + OLED)
The ESP32 version of the car parking sensor! We use the HC-SR04 ultrasonic sensor to measure the distance to the object in front of it. As the distance decreases, the 5-LED bar fills up (green → yellow → red) and the buzzer beep interval shortens. When the object gets very close (under 10 cm), a continuous alarm sounds and all LEDs light up. The SSD1306 OLED display shows the current distance in cm in large font, a status message (STOP / CAUTION / CLOSE / STOP! / DANGER), and a simulation of the
ESP32 IR Universal Remote (IR Receiver + Remote Control + 3 LEDs + Buzzer + OLED)
With the ESP32, you can read a standard IR remote control and use it to control your own device! In this project, we use an infrared receiver (NEC protocol, 38 kHz) to capture the signals from a 20-button IR remote. We’ve defined different actions for each button: buttons 1, 2, and 3 toggle three separate LEDs; the PWR button turns them all off; and the numbers 4–9 display special characters on the OLED. The SSD1306 OLED display shows the last button pressed in large font, along with a descripti
ESP32 Temperature Data Logger (DHT22 + DS1307 RTC + microSD + OLED)
Build a timestamped temperature logger with ESP32! Read DHT22 temperature/humidity every 10 seconds, get real-world time from DS1307 RTC, and log to microSD card as CSV. The OLED displays live temperature (large font), humidity percentage, timestamp, and log counter. The `/temp_log.csv` file on the SD card opens in Excel, Google Sheets, or Python pandas for analysis — perfect for greenhouse monitoring, home/room temperature tracking, laboratory data collection, food storage conditions, or beehiv