Description
20×4 LCD Module
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Capacity: 20 characters per line × 4 lines.
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Interface: Standard 16-pin parallel interface (can also be used with an I2C backpack).
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Backlight: Blue background with white text.
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Controller: HD44780 (standard compatibility).
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Operating Voltage: 5V DC.
| Feature | Specification |
| Measurement Range | 0–100V DC (Voltage) / 0–10A DC (Current) |
| Operating Voltage | 4.5V – 30V DC (Required to power the display module) |
| Display | Dual LED (Red for Voltage, Blue for Current) |
| Accuracy | ±1% |
| Refresh Rate | ≥ 500ms/time |
| Dimensions | 48mm × 29mm × 21mm |
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