Is there a way to pre-check if I2C connected devices are physically there ??
I have 2 mega's connected via I2C and they are quite happy talking to each other like "2 woman over the back fence" - no offence is intended..haha
If one is a little slower to initialize on power-up my status messages still indicates the partner is available and will attempt to send data to it causing some sort of hang !!!
Is there a library call similar to [ if (Serial) ] which can be used for the I2C bus devices in Wire.h etc ??