Hello my name is Kostas. I ' d like to raise a question. My nephew has visual problems he is half blind but can see light. Now what i want to to is this. i want to have in different places 5 led lights. when he wakes up and goes for the toilet for example i want when he passes from the first led light which logical must have a light sensor or sonar which calculates the distance ,to turn on. After i want the next led light which is 10 feet next to the first led light to turn on by it;s own. Know the question is how should i make this project. Can i use 5 arduinos and make the cooperate between them or can i have the led lights with sonars and make them cooperate with one arduino ?
Hi and welcome,
It can be done with both options. You can have 1 arduino and have 5 lights and 5 sonars/light sensors connect to it (Very easy, you'll see), or have 5 arduino's communicating together(bit harder, but not impossible!).
How do you want to start? do you have an arduino? and do you have experience in electrical work/programming?
Thank you for the reply so soon. I forgot to refer that i want these led lights to be via bluetooth. For example if a person with visual problems goes to a new house or camping or anything to adjust it and not have problems with wires.( possible fall )
I have know some stuff from programming and electrical connections. I have already made a project for temp humid and light monitoring environment
lemonaki25:
Thank you for the reply so soon. I forgot to refer that i want these led lights to be via bluetooth.
No my bad, it was in the subject but I missed that...
Bluetooth is usually a good option if you have a power supply at every station. If you have Bluetooth with a battery it drains way to fast. Take a look at ZigBee, it requires less power.
So it is possible to have 5 stations , each one that consists of 1 arduino /1 zigbee/1 sonar/ 1 pack of led lights. right?. If that is so i can construct each one and program it to light the led lights when someone passes. How will i determine the next arduino to sync with the previous and open by itself? The thing i don;t know is whether all these stations will be operated from my laptop and how ?
You won't have to keep your laptop running all the time, just program the arduino's and let the run.
Smart thing: maybe have 1 master. Let it send to the others when to light up and such.
I have no exp in Zegbee, so i won't be of much help.