![]() The microcontroller must function as the master device, multiple masters are not supported. A timeout feature is included to prevent lockups by faulty or missing hardware. So we will use the Arduino Wire Library which has to be include in the sketch. If it works, consider to define your own hardware definition instead of patching the variant.h. In this tutorial we will learn how the I2C communication protocol works. define PINWIRESDA (25u) define PINWIRESCL (26u) to pins you need. Multiple objects (for multiple software I2C buses) and clock-stretching by slave devices are supported. The nRF52 MCU can use any pair of pins for I2C. ![]() Alternatively it is possible to pass references to functions which read and control the SDA and SCL lines, thereby allowing direct port manipulation to be used if preferred. The pins to be used for the serial data (SDA) and serial clock (SCL) control lines can be defined at run-time. It utilises the pinMode(), digitalWrite() and digitalRead() functions. SoftWire is a software I2C implementation for Arduino and other Wiring-type environments. How Can i download Wire Library jeffersoncejas August 9, 2015, 3:46am 1 Please help me TomGeorge August 9, 2015, 4:41am 2 Hi, What IDE version are you running If you look in SKETCH Include Library You should find its already there, just select it to put it in your sketch.
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