Hi, so I'm making a 5V Solar Powerbank for a YouTube video, the solar and powerbank part works fine, it uses a tiny microcontroller - DFRobot Beetle board (Leonardo cutdown(ATmega32U4)) - Beetle Board - Compatible with Arduino Leonardo - ATmega32U4 - DFRobot to measure the Li-Ion battery's voltage, then display how charged it is on a Battery Capacity Indicator module - Battery Capacity Indicator - DFRobot. That part all works fine. What I'm trying to do is to be able to press a pushbutton once and get the display module going, then press it again to turn it off.
My issue in making this simple feature possible is coding for this, I'm having trouble figuring out what function name to call out to start and stop the batteryDisplay function from the module's TM1651 library.
Pasted below is my full code (including failed my attempts in coding for the feature), though my changes didn't bring the Battery Capacity Indicator module to turn off or on when I pushed the push button.
Full code:
#include "TM1651.h"
#define CLK 10
#define DIO 9
#define cellPin A0
#define buttonPin 11
int val = 0;
int value = 0;
int state = 0;
int old_val = 0;
TM1651 batteryDisplay(CLK, DIO);
void setup()
{
Serial.begin(9600); // Debugging only
batteryDisplay.init();
batteryDisplay.set(7);//0 ~ 7 mean to different brightness;
batteryDisplay.frame(FRAME_ON);//light the frame of the battery display or FRAME_OFF to turn off the frame of the battery display
pinMode(cellPin, INPUT);
}
void loop()
{
value = digitalRead(buttonPin); //Reads the value of the button and stores
if ((value == HIGH) && (old_val == LOW))
{
state = 1 - state; //Check if state has changed
// delay(10);
}
old_val = value; // Val is now old val so its stored
switch (state)
{
case 1:
_start(); //starting battery display animation
break;
case 0:
_stop(); //stopping battery display animation
break;
}
charging(); //initializing void function
val = analogRead(cellPin);
Serial.println(val);
delay(1000);
}
void charging() //for displaying battery lvl through a charging animation (animation part is disabled here)
{
if (val <= 550)
{
for (uint8_t level = 0; level < 1; level ++)
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
if (val >= 600)
{
for (uint8_t level = 0; level < 2; level ++) /*the following lines of code see if battery's ADC analog value is greater than or equal to a certain value,
then makes the module display so many bars as a percentage accordingly.*/
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
if (val >= 650)
{
for (uint8_t level = 0; level < 3; level ++)
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
if (val >= 700)
{
for (uint8_t level = 0; level < 4; level ++)
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
if (val >= 750)
{
for (uint8_t level = 0; level < 5; level ++)
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
if (val >= 800)
{
for (uint8_t level = 0; level < 6; level ++)
{
batteryDisplay.displayLevel(level);
delayMicroseconds(5);
}
}
}
I usually get around such small things quicker than the problem I'm having now, but this time it really got me stuck, so that's why you're seeing my post on the forum.
If any of you could suggest a quick tip, code modification, or method to make this little feature work-in with my battery display, that would be great.
Any help would be much appreciated, thanks!
