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Update "begin" for custom i2c GPIO numbers #8

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Update "begin" for custom i2c GPIO numbers #8

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1fde1e7
Update "begin" with optional i2c-pins
peacemakerv2 Aug 3, 2025
e659cf5
Update "begin" with optional i2c-pins
peacemakerv2 Aug 3, 2025
c33fb82
Update "begin" for custome i2c GPIO numbers
peacemakerv2 Aug 3, 2025
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13 changes: 9 additions & 4 deletions Beastdevices_INA3221.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -49,9 +49,10 @@ void Beastdevices_INA3221::_write(ina3221_reg_t reg, uint16_t *val) {
_i2c->endTransmission();
}

void Beastdevices_INA3221::begin(TwoWire *theWire) {
bool Beastdevices_INA3221::begin(TwoWire *theWire, int sdaPin, int sclPin) {
_i2c = theWire;


// Initialize shunt resistors with default values
_shuntRes[0] = 10;
_shuntRes[1] = 10;
_shuntRes[2] = 10;
Expand All @@ -60,7 +61,11 @@ void Beastdevices_INA3221::begin(TwoWire *theWire) {
_filterRes[1] = 0;
_filterRes[2] = 0;

_i2c->begin();
if (sdaPin != -1 && sclPin != -1) {
return _i2c->begin(sdaPin, sclPin); //custom i2c pins
} else {
return _i2c->begin();
}
}

void Beastdevices_INA3221::setShuntRes(uint32_t res_ch1, uint32_t res_ch2, uint32_t res_ch3) {
Expand Down Expand Up @@ -509,7 +514,7 @@ float Beastdevices_INA3221::getVoltage(ina3221_ch_t channel) {
break;
}

_read(reg, &val_raw);
_read(reg, &val_raw);

voltage_V = val_raw / 1000.0;

Expand Down
4 changes: 2 additions & 2 deletions Beastdevices_INA3221.h
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Original file line number Diff line number Diff line change
Expand Up @@ -156,7 +156,7 @@ class Beastdevices_INA3221 {

Beastdevices_INA3221(ina3221_addr_t addr) : _i2c_addr(addr) {};
// Initializes INA3221
void begin(TwoWire *theWire = &Wire);
bool begin(TwoWire *theWire, int sdaPin = -1, int sclPin = -1);

// Sets shunt resistor value in mOhm
void setShuntRes(uint32_t res_ch1, uint32_t res_ch2, uint32_t res_ch3);
Expand Down Expand Up @@ -308,4 +308,4 @@ class Beastdevices_INA3221 {
float getVoltage(ina3221_ch_t channel);
};

#endif
#endif