簡易測電池容量儀制作附Arduino代碼

ID:85865 · 發(fā)表于 2019-1-26 11:47

以前做項(xiàng)目剩有幾十個(gè)14500鋰電池，不知是否全好的，干脆就做個(gè)測試電池容量的來測一下

原理圖：

/************************************************************
*簡易測電池容量
*電阻是已知的電壓通過A0口測得之后就可以通過歐姆定律算得電流
*電流乘以時(shí)間得到容量（這個(gè)用一秒一次采樣之后將這一秒當(dāng)成恒流放電
*算出每秒放電量再不斷疊加）
*
*電阻5歐 5瓦可根據(jù)容量改（ Rdown）

**************************************************************/

float Udown=0, Rdown=5,Vcc=5,capacity,Idown,time=0;

void setup()
{
Serial.begin(9600);  //定義串口波特率為9600
}

void loop() {
time=time+1;
Udown = analogRead(A0);  //讀取A0口值
Udown=Udown/1023*Vcc;  //換算為電壓值
Idown=Udown/Rdown; //換算為電流值
capacity=capacity+Idown;  //換算為電池容量值
Serial.print("U:");
Serial.print(Udown,3);  //電壓值保留小數(shù)點(diǎn)3位
Serial.print("V");
Serial.print("  I:");
Serial.print(Idown,3); //電流值保留小數(shù)點(diǎn)3位
Serial.print("A");
Serial.print("  capacity:");
Serial.print(capacity,3); //電池容量值保留小數(shù)點(diǎn)3位
Serial.print("mAh");
Serial.print("  time:");
Serial.print(time); //測試時(shí)間
Serial.println("s");

delay(1000);       // 一秒刷新一次這個(gè)與容量測試掛鉤最好別改
}

*串口工具需要一直開著，否則會清零
*電池中途可以卸下再接上不影響測量另外這個(gè)只是粗略測量
*只能測5v以下
*另外改改程序（A0-A7）就能實(shí)現(xiàn)多個(gè)電池一起測

ID:373684 · 發(fā)表于 2019-10-14 23:57

Arduino:1.6.9 (Windows 7), 開發(fā)板："Arduino Due (Programming Port)"

Arduino:1: error: 'float time' redeclared as different kind of symbol

In file included from c:\users\administrator.user-20161022ou\appdata\local\arduino15\packages\arduino\tools\arm-none-eabi-gcc\4.8.3-2014q1\arm-none-eabi\include\stdlib.h:11:0,

               from C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Arduino.h:24,

               from sketch\Arduino.ino.cpp:1:

c:\users\administrator.user-20161022ou\appdata\local\arduino15\packages\arduino\tools\arm-none-eabi-gcc\4.8.3-2014q1\arm-none-eabi\include\time.h:47:11: error: previous declaration of 'time_t time(time_t*)'

time_t _EXFUN(time,    (time_t *_timer));

         ^

D:\360嫻忚鍣ㄤ笅杞絃BV\絎簲绔犲簲鐢ㄨ繘闃禱5.4娓╂箍搴︽祴閲廫Arduino\Arduino.ino: In function 'void loop()':

D:\360嫻忚鍣ㄤ笅杞絃BV\絎簲绔犲簲鐢ㄨ繘闃禱5.4娓╂箍搴︽祴閲廫Arduino\Arduino.ino:9:11: warning: pointer to a function used in arithmetic [-Wpointer-arith]

Arduino:9: error: assignment of function 'time_t time(time_t*)'

Arduino:9: error: cannot convert 'time_t (*)(time_t*) {aka long int (*)(long int*)}' to 'time_t(time_t*) {aka long int(long int*)}' in assignment

Arduino:24: error: call of overloaded 'print(time_t (&)(time_t*))' is ambiguous

D:\360嫻忚鍣ㄤ笅杞絃BV\絎簲绔犲簲鐢ㄨ繘闃禱5.4娓╂箍搴︽祴閲廫Arduino\Arduino.ino:24:18: note: candidates are:

In file included from C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Stream.h:26:0,

               from C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/HardwareSerial.h:24,

               from C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Arduino.h:195,

               from sketch\Arduino.ino.cpp:1:

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:61:12: note: size_t Print::print(char) <near match>

   size_t print(char);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:61:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'char'

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:62:12: note: size_t Print::print(unsigned char, int) <near match>

   size_t print(unsigned char, int = DEC);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:62:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'unsigned char'

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:63:12: note: size_t Print::print(int, int) <near match>

   size_t print(int, int = DEC);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:63:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'int'

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:64:12: note: size_t Print::print(unsigned int, int) <near match>

   size_t print(unsigned int, int = DEC);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:64:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'unsigned int'

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:65:12: note: size_t Print::print(long int, int) <near match>

   size_t print(long, int = DEC);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:65:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'long int'

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:66:12: note: size_t Print::print(long unsigned int, int) <near match>

   size_t print(unsigned long, int = DEC);

         ^

C:\Users\Administrator.USER-20161022OU\AppData\Local\Arduino15\packages\arduino\hardware\sam\1.6.8\cores\arduino/Print.h:66:12: note: no known conversion for argument 1 from 'time_t(time_t*) {aka long int(long int*)}' to 'long unsigned int'

exit status 1
'float time' redeclared as different kind of symbol

在文件 -> 首選項(xiàng)開啟
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這份報(bào)告會包含更多信息。

ID:373684 · 發(fā)表于 2019-10-15 15:10

我用Arduino DUE板做的，，做不出來，，上面就是錯(cuò)誤報(bào)警

ID:264926 · 發(fā)表于 2019-10-15 18:30

加個(gè)顯示屏顯示呢

ID:373684 · 發(fā)表于 2019-10-18 19:32

zhengyouhua 發(fā)表于 2019-10-15 18:30
加個(gè)顯示屏顯示呢

論壇有的，，我看到有顯示屏的做法

ID:689745 · 發(fā)表于 2020-2-3 17:41

圖1 Arduino Pro Mini 測量 2 節(jié) 7 號電池電壓和容量

圖2 硬件連接 Arduino Pro Mini 和電池

圖3 APP 實(shí)時(shí)顯示電池電壓和容量

謝謝您的介紹，按這個(gè)原理實(shí)現(xiàn)了 Arduino Pro Mini 測量 2 節(jié) 7 號電池（電壓=2.93V，電量=94%)。算法原理和實(shí)驗(yàn)過程，請參考《花 1 小時(shí)，開源設(shè)計(jì) LoRa 檢測電池容量》 https://blog.csdn.net/jiangjunjie_2005/article/details/104070668

ID:85865 · 發(fā)表于 2020-2-4 13:20

cr8526 發(fā)表于 2019-10-15 15:10
我用Arduino DUE板做的，，做不出來，，上面就是錯(cuò)誤報(bào)警

DUE 好像不行的哦，

ID:373684 · 發(fā)表于 2021-1-6 23:39

252622979 發(fā)表于 2020-2-4 13:20
DUE 好像不行的哦，

要什么板？？

ID:373684 · 發(fā)表于 2022-2-27 22:04

252622979 發(fā)表于 2020-2-4 13:20
DUE 好像不行的哦，

原來是這樣啊，，明白了

ID:593198 · 發(fā)表于 2022-10-11 21:02

樓主的程序計(jì)算出的容量應(yīng)該是AS（安秒），這一句“capacity=capacity+Idown; //換算為電池容量值”改為
“capacity=capacity+Idown/3.6; //換算為電池容量值” 單位才能用mAh.

ID:138707 · 發(fā)表于 2023-7-29 17:57

原來是這樣啊，，明白了

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簡易測電池容量儀制作 附Arduino代碼

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簡易測電池容量儀制作附Arduino代碼