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- Lcd Character Modules
Product Description

This is a 6-digit 7-segment LCD display module, which has been widely used in multimeters, electronic scales, electronic clocks, and ultrasonic distance measurement. It is suitable for UNO R3 motherboard and other 5V single-chip microcomputers, and has a backlight, which can be seen clearly in the dark environment.
Specification
Compatibility | It can be directly connected to UNO R3 motherboard, 51, AVR, etc. |
Backlight color | Blue / Green / White can be optional |
Display size | 2.4 inches |
Driver chip | HT1621 |
Interface | 3-wire SPI |
Working voltage | 4.7-5.2VDC |
Working current | 0.4mA (without backlight), 4mA (with backlight) |
Application | thermometer, multimeter, electronic scale, DIY project, etc. |

Feature
- Only 3 I/O ports are needed to control the display, and the numbers or simple characters can be changed at any time;
- The dedicated driver chip HT1621 is used for hardware refresh instead of software refresh in the MCU program. It only needs to refresh when the display content changes, which greatly frees CPU resources for other operations;
- Power saving (only tens of uA to hundreds of uA without backlight).
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