Hello there !
For my school project, I need to use an Arduino as a sensor host to communicate values to an industrial automat.
I need to send temperature, humidity and lux.
My program to collect data is already done, but I'm searching for a solution to send these values to the industrial automat.
My first idea was to pass by RS232 connector but how : ?
As I know, the DB9 connector act as a Parallel In/Out but the Arduino just get Serial In/Out transmetter pins.
And what is the kind of data to transmit ? Raw numbers ? Hexa numbers ? :
Sorry for my roughly english, I'm a French guy ^^
Thanks by advance for your help