aymen ammari Posts - Answer Overflow

aymen ammari

•Created by aymen ammari on 8/30/2024 in #pcb-and-analog

Incorrect Battery Percentage Reading on MKR 1010 with 3.7V Lithium Battery

Hi I am using the following code to monitor a 3.7V 800MAH lithium battery to power my MKR 1010, and I have all the required library. However, this code always shows the battery percentage as 100, do you have any idea how to solve?

#include "Battery.h"

Battery battery(2750, 4200, ADC_BATTERY);

void setup() {
    Serial.begin(9600);
    while (!Serial);
    analogReference(AR_EXTERNAL);  
    analogReadResolution(10);
    battery.begin(3300, 1.47);
}

void loop() {
    Serial.print("Battery voltage is ");
    Serial.print(battery.voltage());
    Serial.print(" (");
    Serial.print(battery.level());
    Serial.println("%)");
    delay(1000);  
}

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