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Bundle SoftwareI2C library (with edits)

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ThePetrovich 2025-09-22 20:00:44 +08:00
parent 63583ce984
commit 70798b6bf7
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libraries/Arduino_Software_I2C-master/SoftwareI2C.h Normal file
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/*
SoftwareI2C.h
2012 Copyright (c) Seeed Technology Inc. All right reserved.
Author:Loovee
2013-11-1
This is a Software I2C Library, can act as I2c master mode.
This library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
This library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with this library; if not, write to the Free Software
Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
*/
#ifndef _SOFTWAREI2C_H_
#define _SOFTWAREI2C_H_
#define GETACK 1 // get ack
#define GETNAK 0 // get nak
#ifndef HIGH
#define HIGH 1
#endif
#ifndef LOW
#define LOW 0
#endif
#ifndef uchar
#define uchar unsigned char
#endif
class SoftwareI2C {
private:
int pinSda;
int pinScl;
int recv_len;
int sda_in_out;
private:
inline void sdaSet(uchar ucDta);
inline void sclSet(uchar ucDta);
inline void sendStart(void);
inline void sendStop(void);
inline uchar getAck(void);
inline void sendByte(uchar ucDta);
inline uchar sendByteAck(uchar ucDta); // send byte and get ack
public:
//SoftwareI2C();
void begin(int Sda, int Scl);
uchar beginTransmission(uchar addr);
uchar endTransmission();
uchar write(uchar dta);
uchar write(uchar len, uchar* dta);
uchar requestFrom(uchar addr, uchar len);
uchar read();
uchar available() {
return recv_len;
}
};
#endif
/*********************************************************************************************************
END FILE
*********************************************************************************************************/