Hello there,
Thanks for reply.
I don't have to use I2C for communication as you said.
But on slaves I am using ATtiny24A for price reasons, so it does not have TX RX pins.
Searched SoftwareSerial lib for ATtiny24A and couldn't find a suitable one.
The least expensive solution would be ATMega8 I think, still aprrox 2 times pricey than ATtiny24A.
So i turned to I2C which is available on ATtiny24A.