前幾天在家看到我家的鋰電吸塵器沒電了，但是充滿後用了一會就又沒了，電量明明顯示還有兩格，心想這個東西太不靠譜了，於是就尋思如果能測試出電池的容量就好了，便自己動手做了一個鋰電容量測試儀，
老規矩廢話不多說，先上實物圖
工作原理時：此設計是用萬能板搭建，顯示用12864字庫屏，主板與屏幕分開，這個單片機電池容量測試儀對於鋰電/鎳氫程序實現自動識別。該設備會自動識別電池類型（鋰電池還是鎳氫電池）。
識別的方法：電壓高於2.7就是鋰電，低於2.7高於2V就是鋰電低電壓，會有提示；高於1低於2，就是鎳氫電池。左下角放電測試時會顯示截止電壓。
本設計僅供參考如果設計有不合理之處請大神勿噴，再次僅僅起到學習和拋轉引玉的效果。
本設計參考C語言源代碼：
;-------------------------
; LCD12864.ASM
;
;12864液晶屏顯示驅動程序
;-------------------------
SENDI:;------串行控制命令寫入------------------------
; LCALL FD ;等忙時間
MOV RAM0,#15
DJNZ RAM0,$
;------------第一字節,11111000,從MCU到屏,控制字 ,rs,rw都爲0
SETB RS ;片選爲1
MOV R7,#5
SENDI1: SETB RW ;前四位都爲1
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDI1
MOV R7,#3
SENDI2: CLR RW
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDI2
;-------第二三字節,8位的高四位------------------
MOV R6,#2
SENDI5: MOV R7,#4
SENDI3: RLC A
MOV RW,C
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDI3
MOV R7,#4
CLR C
SENDI4: MOV RW,C ;後4位全爲0
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDI4
DJNZ R6,SENDI5
CLR RS
RET
;-----------------------------------------------
SENDD: ;------串行數據字節寫入---------------------
; LCALL FD ;等忙時間
MOV RAM0,#15
DJNZ RAM0,$
;------------第一字節,11111000,從MCU到屏,控制字
SETB RS ;片選爲1
MOV R7,#5
SENDD1: SETB RW ;前四位都爲1
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDD1
CLR RW ;第三位,從MCU到LCD,0
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
SETB RW ;第二位,數據,1
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
CLR RW ;第1位,0
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
;-------第二三字節,8位的高四位------------------
MOV R6,#2
SENDD5: MOV R7,#4
SENDD3: RLC A
MOV RW,C
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDD3
MOV R7,#4
CLR C
SENDD4: MOV RW,C ;後4位全爲0
NOP
NOP
CLR E
NOP
NOP
NOP
NOP
SETB E
DJNZ R7,SENDD4
DJNZ R6,SENDD5
CLR RS
RET
/從緩存取數據送顯示/
LCDDS: MOV DPTR,#TAB1F ;
LCDDS1: MOV A,@R0 ;取列表
MOVC A,@A+DPTR
LCALL SENDD
INC R0
DJNZ DSDAT,LCDDS1 ;取完N個數
RET
LCDDS2: MOV DPTR,#TAB1F
LCDDS3: MOV A,R0
MOVC A,@A+DPTR
LCALL SENDD
INC R0
DJNZ DSDAT,LCDDS3
RET
TAB10: DB " 電池容量測試 " ;
TAB11: DB "V=0.00V I=0.00A "
TAB12: DB "0:00:00 0mAh "
TAB13: DB “SV2.70V SR0.00A”
; 0 10 141618 22 30
TAB1F: DB "0123456789: -.=VRLAmD 待機…SV已結束! ",0
/*
TAB1:
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,96,0,0,96,0,0,0,0;
DB 0,0,192,0,102,0,195,128,99,0,99,96,49,128,0,0;
DB 0,0,192,0,99,0,222,0,97,128,99,252,49,128,0,0;
DB 0,0,192,0,96,0,198,192,96,240,103,96,49,128,0,0;
DB 0,0,192,0,126,0,255,128,127,176,121,240,49,240,0,0;
DB 0,0,248,7,192,3,204,3,248,1,231,48,63,176,0,0;
DB 0,31,152,0,243,0,219,128,126,192,103,240,241,224,0,0;
DB 0,1,152,0,243,0,254,0,118,96,118,48,49,252,0,0;
DB 0,1,176,1,182,1,247,240,236,0,251,224,63,128,0,0;
DB 0,3,48,1,188,15,254,1,225,193,225,188,113,128,0,0;
DB 0,3,48,195,56,96,198,199,111,3,111,225,195,192,0,0;
DB 0,6,48,198,112,96,222,192,99,0,97,192,6,96,0,0;
DB 0,12,48,204,240,97,223,193,227,240,99,96,12,56,0,0;
DB 0,56,31,152,31,224,248,192,254,0,102,48,56,30,0,0;
DB 0,0,0,0,0,0,0,0,0,0,124,28,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,48,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,48,0,3,0,0,48,1,128,24,0,0,0,0;
DB 0,0,0,96,0,115,1,158,48,97,176,27,48,0,0,0;
DB 0,0,0,96,3,195,0,246,48,49,152,49,176,0,0,0;
DB 0,0,0,254,0,3,224,103,176,1,128,49,176,0,0,0;
DB 0,0,1,134,0,127,102,127,176,1,240,108,48,0,0,0;
DB 0,0,1,134,7,195,99,127,176,239,128,118,96,0,0,0;
DB 0,0,1,246,0,195,96,127,179,225,128,243,96,0,0,0;
DB 0,0,1,134,1,182,96,255,176,99,193,177,224,0,0,0;
DB 0,0,1,134,3,118,97,255,176,110,192,48,192,0,0,0;
DB 0,0,1,246,3,252,193,156,48,102,96,49,224,0,0,0;
DB 0,0,1,134,0,24,195,54,48,119,236,51,56,0,0,0;
DB 0,0,1,254,0,51,192,102,112,124,60,62,30,0,0,0;
DB 0,0,1,206,0,97,128,192,48,0,28,48,0,0,0,0;
DB 0,0,0,6,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 7,156,243,224,12,32,15,128,0,0,0,0,13,136,0,192;
DB 8,136,74,64,18,96,10,128,0,0,0,0,5,24,1,32;
DB 8,8,72,143,130,35,226,0,0,0,0,0,5,8,1,32;
DB 8,8,72,128,12,32,2,0,0,0,0,0,5,8,1,32;
DB 8,8,73,0,2,32,2,0,0,0,0,0,5,8,1,32;
DB 8,136,73,32,18,32,2,0,0,0,0,0,2,8,1,32;
DB 7,8,243,224,12,112,7,0,0,0,0,0,2,28,64,192;
DB 0,48,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;“G:\8951\項目\09-27 九龍搖控器自動測試臺\開機畫面.bmp”,0
/* (128 X 64 )*
TAB2:
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,24,0,0,0,0,0,0,0,0,0,0,192,0,0;
DB 0,0,28,0,0,0,0,0,1,192,56,0,48,112,0,0;
DB 0,0,28,0,0,222,0,0,1,192,24,0,48,96,0,0;
DB 0,0,62,0,0,254,3,128,1,192,24,0,112,96,0,0;
DB 0,0,119,0,0,206,31,192,3,224,24,0,112,96,0,0;
DB 0,0,115,128,0,207,249,128,3,123,24,0,224,126,0,0;
DB 0,0,225,192,0,206,219,128,7,61,152,0,195,240,0,0;
DB 0,1,192,224,0,254,219,128,14,13,152,1,192,96,0,0;
DB 0,3,128,112,0,254,219,0,12,1,152,3,192,96,0,0;
DB 0,3,15,252,0,206,223,128,24,225,152,3,192,127,128,0;
DB 0,6,126,63,128,206,240,0,63,241,152,6,195,240,0,0;
DB 0,12,0,31,192,254,192,0,110,97,152,12,206,224,0,0;
DB 0,56,0,0,0,238,192,0,198,97,152,24,192,96,0,0;
DB 0,96,1,128,1,204,192,24,7,225,152,0,192,96,0,0;
DB 0,0,31,192,1,140,192,24,6,225,152,0,192,252,0,0;
DB 0,3,241,224,1,140,192,56,6,192,24,0,195,224,0,0;
DB 0,1,129,192,3,140,224,120,6,12,24,0,192,96,0,0;
DB 0,1,193,128,3,60,127,248,6,28,24,0,192,96,0,0;
DB 0,0,193,128,6,28,31,192,7,252,24,0,192,127,192,0;
DB 0,0,255,128,6,28,0,0,1,240,248,1,255,240,0,0;
DB 0,0,224,0,0,24,0,0,0,0,120,0,192,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,56,0,192,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,128,0,0,0,0,0,0,0,0,0,0,0,0;
DB 1,0,0,128,0,0,0,0,0,128,0,0,0,0,0,0;
DB 1,0,1,224,3,0,7,240,1,128,0,240,3,0,0,248;
DB 25,112,7,192,3,0,5,80,1,248,61,160,1,128,7,16;
DB 24,192,7,0,3,224,7,96,31,0,41,32,4,192,0,16;
DB 0,96,2,128,31,48,1,120,18,224,41,160,12,96,3,144;
DB 17,128,7,224,23,176,15,192,3,32,41,96,9,48,28,16;
DB 48,224,7,128,23,32,2,96,6,160,57,216,19,24,7,144;
DB 39,160,0,248,15,160,4,48,11,32,41,224,54,28,25,144;
DB 36,36,31,128,15,224,15,252,50,160,34,96,69,198,15,16;
DB 40,36,32,128,3,2,53,167,3,32,34,16,15,32,14,16;
DB 24,38,0,128,1,6,6,96,2,32,34,78,31,96,0,16;
DB 0,54,0,128,0,254,0,0,2,32,35,130,0,0,0,112;
DB 0,14,0,128,0,0,0,0,0,96,0,0,0,0,0,16;
DB 0,0,0,128,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;
DB 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0;“C:\Documents and Settings\new\桌面\22.bmp”,0
/**/
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