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Adding support for secondary I2C interfaces found on some boards. #1

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Adding support for secondary I2C interfaces found on some boards. #1

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157bb65
Added support to secondary I2C interfaces
xcvista Mar 17, 2017
ec9d1c4
Added support for secondary I2C interfaces
xcvista Mar 17, 2017
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6 changes: 3 additions & 3 deletions i2cdetect.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -21,7 +21,7 @@ void _printf(const char *format, ...)
va_end(ap);
}

void i2cdetect(uint8_t first, uint8_t last) {
void i2cdetect(TwoWire &wire, uint8_t first, uint8_t last) {
uint8_t i, j, address, error;

// header
Expand All @@ -36,8 +36,8 @@ void i2cdetect(uint8_t first, uint8_t last) {
for (i = 0; i < 16; i++) {
address = i + j*16;
if (address >= first && address <= last) {
Wire.beginTransmission(address);
error = Wire.endTransmission();
wire.beginTransmission(address);
error = wire.endTransmission();
if (error) {
Serial.print(" --");
} else {
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8 changes: 6 additions & 2 deletions i2cdetect.h
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Original file line number Diff line number Diff line change
@@ -1,8 +1,12 @@
/*
i2cdetect.h - Arduino library for scanning I2C bus for devices
*/

#ifndef __I2CDETECT_H_
#define __I2CDETECT_H_

void i2cdetect(uint8_t first, uint8_t last);
void i2cdetect();
#include <Wire.h>

void i2cdetect(TwoWire &wire = Wire, uint8_t first = 0x03, uint8_t last = 0x77);

#endif