1. At the master Arduino, I still have pin for SoftI2C … but not for hardware I2C
2. At the ‘slave’ I can use hardware I2C, Since the pin is free … and there is no softI2C ‘slave-mode’ library.
I will need 3 slave .. thats why I can’t use SoftSerial
Do the slaves need to send anything back to the master? If not you could use serial and just tie all the slaves RX pin to the masters TX pin. You could either add an address field to the struct or just make each slave’s struct a different size. The library will ignore received packets that aren’t the right size
This reply was modified 12 years, 2 months ago by Bill.