ad-hoc connection -- GPIO

[traputaca]

Hello,

I have a question : is it possible to have an ad-hoc connection (between smartphone and Rpi or computer and Rpi) to launch program, commute the Gpio or other thing where we haven't need internet ?

at home i use mainly VNC or SSH. but i have an outdoor project where i haven't got internet.

Thanks,

[james-at-lo-tech]

You could use the RPi to create a wireless network and have the phones etc connect to that. Or have a dedicated wireless router doing this bit and the RPi just connected to it by Ethernet.

[traputaca]

Ok thanks,

I have read i can do an ad-hoc network with my pi, but after, i just have to connect to the network i created ? i just have to connect to the IP (for ssh or vnc) That I configured ?

[james-at-lo-tech]

Basically, yes, you could run everything from the RPi by running the WiFi in master mode and having a DHCP server also installed (e.g. dnsmasq). It might though be easier, if you're not familiar with this part, to just get a low cost wireless router of some description (NetGear, LinkSys etc) as it will be preconfigured to do all of this already.

[DougieLawson]

Get your RPi running hostapd as an infrastructure access point. Your phone can then join that network as an infrastructure client.
Or run a WiFi AP on your phone and connect it the other way round.

Getting an AP running on your RPi3 is well documented at: https://frillip.com/using-your-raspberr ... h-hostapd/