Modify arduino wire library1/3/2024 ![]() Problem only appears when master requests data from another arduino slave (master sends data successfully to slave arduino but vice versa is not true). Definitely there is something wrong with my approach. Unable to do what i was upto i resorted to example sketches of Wire library to assess what i was doing wrong and to my surprise even example sketches were not working. I am not able to receive bytes from slave arduino. then i wanted to establish i2c communication between 2 arduinos such that both exchange each other's sensors data. 2015, Peter_n renames the library into "SoftwareWire", and made it a drop-in replacement for the Wire library.I tried i2c EPROM and that worked pretty fine with arduino master. Also changed I2C waveform and added speed selection. 2014-2015, Testato updates the SoftI2CMaster library to make it faster and to make it compatible with the Arduino 1.x API Kurt takes some tricks from Raul and wrote the SoftI2CMaster library for the Arduino environment. ![]() 2008, Raul wrote a I2C with bit banging as an exercise. This library started in 2008, and is now the result of the work of four. I added some glue to that code to make it behave like the Wire library. Testato was working on such a library here : Bitbanged waveform modified to strictly adhere to I2C standard.i2c_stop is safer with extra delay, and both SDA and SCL are first set low.Updated printStatus() - by Removed I2C Slave functions and added error message - by 1.4.1.Inherit from TwoWire - by Repeated start fix - by 1.5.0. ![]() Remove virtual on destructor - by Remove inheritance from TwoWire - by Remove including Wire.h - by 1.5.1.After that is should be just like the real Wire library. Include the library, and create a SoftwareWire object with the sda and scl pin. The clock pulse stretching is implemented, so the Slave can be another Arduino board. The SoftwareWire is only I2C Master mode. ![]() It can be installed via the arduino library manager or manually by copying the files to your sketchbook\libraries folder. More than one software I2C bus can be created. This is a library that creates a software I2C bus on any two pins. ![]()
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