Gadget999:
thanks for the advice guysi will try pulsein
i didnt realise it will stop and wait for a pulse for a while before it continues
is there a twin processor arduino on the market that can be used to read multiple high speed pulses ?
how do you get 2 arduinos to talk to each other and transmit information back and forth
I do not think there is a board with two of the same chips for sale, just the yun, tre and zero ( soon ).
To communicate between them in serial, SPI would be the fastest, or if you have enough spare pins a set of parallel lines to flag interrupts and latch blocks of data.