Libraries — 30 Days Lost in Space Help Center

30 Days Lost in Space → Help Center
Libraries — 30 Days Lost in Space Help CenterComponent guides, wiring references, code explanations and fixes for the errors people hit most in 30 Days Lost in Space.
LibrariesSoftware library documentation: display drivers, encoders, and more
BasicEncoder: Rotary Encoder Library — Count pulses from rotary encoder knobs with minimal code. BasicEncoder handles debouncing and direction detection so you can focus on what to do with the turns.
Keypad Library — Simplify matrix keypad scanning. The Keypad library handles row-column multiplexing so you can focus on what to do with the key presses.
TM1637: 7-Segment Display Driver — Control 4-digit 7-segment displays with just 2 pins. Display numbers, time, and simple text for counters and clocks.
Tone: Sound Generation — Generate square wave tones on any digital pin. The built-in tone() function is all you need to make buzzers beep, play melodies, and create sound effects.
U8g2: OLED Display Library — The go-to library for controlling OLED and LCD displays. Draw text, shapes, and graphics on SSD1306 and other display controllers.
Wire Library (I2C Communication) — The built-in Wire library lets your Arduino talk to I2C devices like OLED displays and sensors using just two wires: SDA and SCL.