Blocks Area
LCD
🖥️ LCD – Your “Text Display”
What it is: Blocks for displaying text on character displays.
What it does: Displays messages on character displays.
Example: Displaying “Hello” on a 16×2 display.
👉 It’s the robot’s lighted sign.
🧩 Fun Guide to LCD Display Blocks (Clu-blocks Pro)
🖥️ Important! LCD blocks let your robot talk visually — showing messages, sensor data, or even animations. It’s like giving your robot a mini billboard!
🔧 Setup & Configuration
| # | Block | What it does | Dropdown options | What the options mean |
|---|---|---|---|---|
| 1 | I2C setup i2c_extend SCL: 2 SDA: 10 frequency: 100000 |
Sets up I2C communication | — | Needed before using the LCD — SCL/SDA are data pins |
| 2 | count with I2C i2c_extend lcd setup as LCD1602 Address: 0x27 |
Initializes the LCD screen | — | LCD1602 is a 2-line, 16-character display — 0x27 is the common I2C address |
📝 Displaying Text
| # | Block | What it does | Dropdown options | What the options mean |
|---|---|---|---|---|
| 3 | LCD display string "Clu-Bots" cols: 0 rows: 0 middle alignment: yes |
Shows text on the screen | — | You choose the position and alignment — great for titles or labels |
| 4 | LCD print display string "Clu-Bots" cols: 0 rows: 0 and interval(ms): 5 |
Prints text with animation | — | Shows characters one by one — perfect for typing effects or suspense |
💡 Backlight & Control
| # | Block | What it does | Dropdown options | What the options mean |
|---|---|---|---|---|
| 5 | LCD lcd Backlight turn on display |
Turns the screen backlight on or off | on display, off display |
Controls brightness — useful for saving power or signaling status |
| 6 | LCD clear display |
Clears everything from the screen | — | Use this before updating the screen or switching messages |
🧠 Quick Tips for Students
- Use setup blocks first — your LCD won’t work without I2C setup and address.
- Use rows and columns to position text — row 0 is top, row 1 is bottom.
- Use middle alignment for titles — it looks clean and professional.
- Use print with interval for cool effects — like typing or countdowns.
- Use clear + backlight to refresh or hide the screen — great for transitions or alerts.
