Recently brought an Adafruit fuel gauge and have been trying to get it to work with both a UNO and NANO with both of them running in to the same problems. When I run the program "Adafruit LC709203F demo" is printed into the serial moniter then nothing else prints. I've made sure i've hooked uo SCL and SDA right multiple times and I am using the example code that is provided by the Adafruit LC709203F libary. What could the problem be.
#include "Adafruit_LC709203F.h"
Adafruit_LC709203F lc;
void setup() {
Serial.begin(115200);
delay(10);
Serial.println("\nAdafruit LC709203F demo");
// For the Feather ESP32-S2, we need to enable I2C power first!
// this section can be deleted for other boards
#if defined(ARDUINO_ADAFRUIT_FEATHER_ESP32S2)
// turn on the I2C power by setting pin to opposite of 'rest state'
pinMode(PIN_I2C_POWER, INPUT);
delay(1);
bool polarity = digitalRead(PIN_I2C_POWER);
pinMode(PIN_I2C_POWER, OUTPUT);
digitalWrite(PIN_I2C_POWER, !polarity);
#endif
if (!lc.begin()) {
Serial.println(F("Couldnt find Adafruit LC709203F?\nMake sure a battery is plugged in!"));
while (1) delay(10);
}
Serial.println(F("Found LC709203F"));
Serial.print("Version: 0x"); Serial.println(lc.getICversion(), HEX);
lc.setThermistorB(3950);
Serial.print("Thermistor B = "); Serial.println(lc.getThermistorB());
lc.setPackSize(LC709203F_APA_500MAH);
lc.setAlarmVoltage(3.8);
}
void loop() {
Serial.print("Batt_Voltage:");
Serial.print(lc.cellVoltage(), 3);
Serial.print("\t");
Serial.print("Batt_Percent:");
Serial.print(lc.cellPercent(), 1);
Serial.print("\t");
Serial.print("Batt_Temp:");
Serial.println(lc.getCellTemperature(), 1);
delay(2000); // dont query too often!
}
When I use an I2C scanner it just gets suck on "Scanning..." and when I connect an oled screen that uses I2C it says "No I2C devices found". Could it be a problem with the arduino or my computer?
/ --------------------------------------
// i2c_scanner
//
// Version 1
// This program (or code that looks like it)
// can be found in many places.
// For example on the Arduino.cc forum.
// The original author is not know.
// Version 2, Juni 2012, Using Arduino 1.0.1
// Adapted to be as simple as possible by Arduino.cc user Krodal
// Version 3, Feb 26 2013
// V3 by louarnold
// Version 4, March 3, 2013, Using Arduino 1.0.3
// by Arduino.cc user Krodal.
// Changes by louarnold removed.
// Scanning addresses changed from 0...127 to 1...119,
// according to the i2c scanner by Nick Gammon
// https://www.gammon.com.au/forum/?id=10896
// Version 5, March 28, 2013
// As version 4, but address scans now to 127.
// A sensor seems to use address 120.
// Version 6, November 27, 2015.
// Added waiting for the Leonardo serial communication.
//
//
// This sketch tests the standard 7-bit addresses
// Devices with higher bit address might not be seen properly.
//
#include <Wire.h>
void setup()
{
Wire.begin();
Serial.begin(9600);
while (!Serial); // Leonardo: wait for serial monitor
Serial.println("\nI2C Scanner");
}
void loop()
{
byte error, address;
int nDevices;
Serial.println("Scanning...");
nDevices = 0;
for(address = 1; address < 127; address++ )
{
// The i2c_scanner uses the return value of
// the Write.endTransmisstion to see if
// a device did acknowledge to the address.
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0)
{
Serial.print("I2C device found at address 0x");
if (address<16)
Serial.print("0");
Serial.print(address,HEX);
Serial.println(" !");
nDevices++;
}
else if (error==4)
{
Serial.print("Unknown error at address 0x");
if (address<16)
Serial.print("0");
Serial.println(address,HEX);
}
}
if (nDevices == 0)
Serial.println("No I2C devices found\n");
else
Serial.println("done\n");
delay(5000); // wait 5 seconds for next scan
}
