Displays: Showing Information Without a Computer

10 Lektionen in dieser Stufe

1. Driving a Single Seven-Segment Digit
   Map digits to segment patterns stored in an array. · Lab: Count 0–9 on one digit with eight resistors.
2. Four Digits with a TM1637 Module
   Use a two-wire display module through its library. · Lab: Build a seconds counter and show a sensor value with a decimal point.
3. Wiring a 16x2 Character LCD in 4-Bit Mode
   Connect power, contrast and data lines and initialise the display. · Lab: Wire the LCD with a contrast potentiometer and print two lines of text.
4. Cursor Positioning and Number Formatting on the LCD
   Place text precisely and overwrite old digits cleanly. · Lab: Show a changing value right-aligned without leftover characters.
5. Custom LCD Characters and Bar Graphs
   Define your own 5x8 glyphs and build a horizontal bar display. · Lab: Create a degree symbol and a 16-step level bar for a potentiometer.
6. An LCD on Four Wires with an I2C Backpack
   Use a two-signal bus module to free up pins. · Lab: Move the LCD to the backpack and run the same text sketch.
7. Finding a Module's Address with a Scanner Sketch
   Scan the bus to discover the address a module answers on. · Lab: Scan the LCD backpack and the OLED and note both addresses.
8. First Pixels on a 128x64 OLED
   Initialise a graphic display, draw text and understand the frame buffer. · Lab: Print three text sizes and invert the display.
9. Shapes, Icons and Large Digits on the OLED
   Draw lines, rectangles, circles and bitmaps. · Lab: Draw a thermometer icon whose fill follows the temperature.
10. Readable Screens and Page Switching with a Button
    Lay out information by priority and switch pages without flicker. · Lab: Design two pages for temperature and humidity and flip with a button.

Abschlussprojekt

A desktop climate station that shows temperature, humidity and a trend bar on an LCD or OLED with button-switched pages.

Teile für diese Stufe

• 1 × UNO-compatible board
• 1 × USB cable matching the board
• 1 × Solderless breadboard 830 points
• 1 × Jumper wire set male-male and male-female
• 1 × Seven-segment display single digit common cathode
• 1 × TM1637 four-digit display module
• 1 × LCD 16x2 character display
• 1 × I2C backpack for character LCD
• 1 × OLED display 0.96 inch I2C 128x64
• 1 × Potentiometer 10 kilohm
• 8 × Resistor 220 ohm
• 2 × Tactile push button
• 1 × DHT22 temperature and humidity module

In jeder Lektion legst du die passenden Teile direkt in den Warenkorb. Arduino-kompatibel →