This dot-matrix electronic display screen system the STC89C52 SCM SCM as control core, its peripheral circuit includes a memory expansion module, LED display out to the circuit module, driver driver circuit modules, PC communication circuit module. Among them, the control chip line driver driver 2 74LS138

TLEDDdianzhenh\LED点阵显示屏源程序.c
TLEDDdianzhenh

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