VB operator interface through the input formula by RS-232 to control the AVR, so LCD screen display expressions and answers.

工程型計算機
............\AVR 程式
............\........\4414def.inc
............\........\counter.ASM
............\PCB
............\...\asccprj.scc
............\...\Final (1).~SCHDOC
............\...\Final.PCBDOC
............\...\Final.PRJPCB
............\...\Final.SCHDOC
............\...\Final1 (1).~PcbDoc
............\...\Final1 (2).~PcbDoc
............\...\Final1.PcbDoc
............\VB程式
............\......\bottom


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............\......\......\bottom_cos.gif
............\......\......\bottom_cos_off.gif
............\......\......\bottom_dev.gif
............\......\......\bottom_dev_off.gif
............\......\......\bottom_div.gif
............\......\......\bottom_div_off.gif
............\......\......\bottom_dot.gif
............\......\......\bottom_dot_off.gif
............\......\......\bottom_double.gif
............\......\......\bottom_double_off.gif
............\......\......\bottom_mul.gif
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............\......\......\bottom_negative.gif
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............\......\......\bottom_sin.gif
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............\......\......\bottom_sqrt.gif
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............\......\......\bottom_step.gif
............\......\......\bottom_step_off.gif
............\......\......\bottom_sub.gif
............\......\......\bottom_sub_off.gif
............\......\......\bottom_tan.gif
............\......\......\bottom_tan_off.gif
............\......\......\setting time.gif
............\......\......\setting.gif
............\......\control_lcd.bas
............\......\default.frm
............\......\default.frx
............\......\ground
............\......\......\ground_orange.gif
............\......\Module1.bas
............\......\MSSCCPRJ.SCC
............\......\Project1.exe
............\......\Project1.vbp
............\......\Project1.vbw
............\......\time





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