Hi everybody, i'm new about the programmation with arduino, anyway moving among different blogs I found a sketch that allows to turn on and off a single led, thanks to the shield sim 900. My problem is that i don't manage to extend it to more leds ( 6 in partcular) and above all, I'd like to add that arduino answers me through a ring meaning the work done correctly. For this last work, i found a sketch but i don't manage to put it together the previous one. Could somebody help me?
I could have sworn I'd just read the same question in Italian...
More detail required - do you mean turn on six leds simultaneously or individually? What means are you using to detect that they are on? Successful execution of code, or will you be reading the light level from the led?
Post the code you have tried, tell us what it does and what you want it to do. Making a call isn't too difficult.