When I connect LCD using a standard serial enabled protocol, I noticed that Serial.begin function is using timer interrupts to send/receive data even when it is connected Rx/Tx pins. For me that is a problem as in my code I use Arduino interrups to output very precisely spaced TTL pulses. To overco…

Are SPI or I2C timer interrupt based protocols?

system April 21, 2014, 5:47pm 5

I don't think that any code is necessary

OK. Sorry to have bothered you.