12 11 channel AD converter chip tlv2553. 12 dual-channel DA conversion chip tlv5638, LCD1602, keypad, SRAM (65,536), ROM (24C02), a full set of procedures, I board of the 51 systems tested,

11-12(VEE两口检测)
..................\ad
..................\AD.c
..................\ad.lnp
..................\AD.LST
..................\ad.M51
..................\AD.OBJ
..................\ad.Opt
..................\ad.plg
..................\ad.Uv2
..................\ad_Opt.Bak
..................\ad_Uv2.Bak
..................\DA.c
..................\DA.LST
..................\DA.OBJ
..................\delay.c
..................\delay.LST
..................\delay.OBJ
..................\group.h
..................\Keyboard.c
..................\Keyboard.LST
..................\Keyboard.OBJ
..................\lcd.c
..................\lcd.LST
..................\lcd.OBJ
..................\main.c
..................\main.LST
..................\main.OBJ
..................\math.c
..................\math.LST
..................\math.OBJ
..................\timer.c
..................\timer.LST
..................\timer.OBJ

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