Drive electromagnetic type braille display device shows integrated circuit of braille character

The utility model discloses a drive electromagnetic type braille display device shows integrated circuit of braille character. 5V does 3.3V voltage conversion the module links to each other through USB line and PC, VCC 3.3V foot link to each other with LCD liquid crystal interface, SD joint mouth an...

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Bibliographische Detailangaben
Hauptverfasser:	YANG WENZHEN, JIANG ZHAONA, JIN ZHONGZHENG, XUAN JIANQIANG, ZHU PANFEI, XIANG DUNJIE
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	ADVERTISING APPLIANCES FOR TEACHING, OR COMMUNICATING WITH, THE BLIND,DEAF OR MUTE CRYPTOGRAPHY DIAGRAMS DISPLAY EDUCATION EDUCATIONAL OR DEMONSTRATION APPLIANCES GLOBES PHYSICS PLANETARIA SEALS
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Beschreibung
Zusammenfassung:	The utility model discloses a drive electromagnetic type braille display device shows integrated circuit of braille character. 5V does 3.3V voltage conversion the module links to each other through USB line and PC, VCC 3.3V foot link to each other with LCD liquid crystal interface, SD joint mouth and main control unit's VCC 3.3V foot, VCC 5V foot and LCD liquid crystal interface and 120 the VCC 5V foot of passageway plurality path shunt circuit links to each other, SD joint mouth links to each other with main control unit, and main control unit links to each other with the LCD liquid crystal through the interface all the way, is another way through 120 passageway plurality path shunt circuit and ULN2803 amplifier circuit link to each other with electromagnetic type braille display device, voltage conversion pair of module LCD liquid crystal module, SD card module, main control unit and 120 the power supply of passageway plurality path shunt circuit, switching power supply supplies power to ULN2803 amplifier c