简易测电池容量仪制作附Arduino代码

ID:85865 · 发表于 2019-1-26 11:47

以前做项目剩有几十个14500锂电池，不知是否全好的，干脆就做个测试电池容量的来测一下

原理图：

/************************************************************
*简易测电池容量
*电阻是已知的电压通过A0口测得之后就可以通过欧姆定律算得电流
*电流乘以时间得到容量（这个用一秒一次采样之后将这一秒当成恒流放电
*算出每秒放电量再不断叠加）
*
*电阻5欧 5瓦可根据容量改（ Rdown）

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

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

void setup()
{
Serial.begin(9600);  //定义串口波特率为9600
}

void loop() {
time=time+1;
Udown = analogRead(A0);  //读取A0口值
Udown=Udown/1023*Vcc;  //换算为电压值
Idown=Udown/Rdown; //换算为电流值
capacity=capacity+Idown;  //换算为电池容量值
Serial.print("U:");
Serial.print(Udown,3);  //电压值保留小数点3位
Serial.print("V");
Serial.print("  I:");
Serial.print(Idown,3); //电流值保留小数点3位
Serial.print("A");
Serial.print("  capacity:");
Serial.print(capacity,3); //电池容量值保留小数点3位
Serial.print("mAh");
Serial.print("  time:");
Serial.print(time); //测试时间
Serial.println("s");

delay(1000);       // 一秒刷新一次这个与容量测试挂钩最好别改
}

*串口工具需要一直开着，否则会清零
*电池中途可以卸下再接上不影响测量另外这个只是粗略测量
*只能测5v以下
*另外改改程序（A0-A7）就能实现多个电池一起测

ID:373684 · 发表于 2019-10-14 23:57

Arduino:1.6.9 (Windows 7), 开发板："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娴忚鍣ㄤ笅杞絃BV\绗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娴忚鍣ㄤ笅杞絃BV\绗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娴忚鍣ㄤ笅杞絃BV\绗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 -> 首选项开启
“编译过程中显示详细输出”选项
这份报告会包含更多信息。

ID:373684 · 发表于 2019-10-15 15:10

我用Arduino DUE板做的，，做不出来，，上面就是错误报警

ID:264926 · 发表于 2019-10-15 18:30

加个显示屏显示呢

ID:373684 · 发表于 2019-10-18 19:32

zhengyouhua 发表于 2019-10-15 18:30
加个显示屏显示呢

论坛有的，，我看到有显示屏的做法

ID:689745 · 发表于 2020-2-3 17:41

图1 Arduino Pro Mini 测量 2 节 7 号电池电压和容量

图2 硬件连接 Arduino Pro Mini 和电池

图3 APP 实时显示电池电压和容量

谢谢您的介绍，按这个原理实现了 Arduino Pro Mini 测量 2 节 7 号电池（电压=2.93V，电量=94%)。算法原理和实验过程，请参考《花 1 小时，开源设计 LoRa 检测电池容量》 https://blog.csdn.net/jiangjunjie_2005/article/details/104070668

ID:85865 · 发表于 2020-2-4 13:20

cr8526 发表于 2019-10-15 15:10
我用Arduino DUE板做的，，做不出来，，上面就是错误报警

DUE 好像不行的哦，

ID:373684 · 发表于 2021-1-6 23:39

252622979 发表于 2020-2-4 13:20
DUE 好像不行的哦，

要什么板？？

ID:373684 · 发表于 2022-2-27 22:04

252622979 发表于 2020-2-4 13:20
DUE 好像不行的哦，

原来是这样啊，，明白了

ID:593198 · 发表于 2022-10-11 21:02

楼主的程序计算出的容量应该是AS（安秒），这一句“capacity=capacity+Idown; //换算为电池容量值”改为
“capacity=capacity+Idown/3.6; //换算为电池容量值” 单位才能用mAh.

ID:138707 · 发表于 2023-7-29 17:57

原来是这样啊，，明白了

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简易测电池容量仪制作 附Arduino代码

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简易测电池容量仪制作附Arduino代码