I have an Arduino Giga R1 with a Giga display attached to it which will be used as the control and an Arduino Uno R4 WIFI that will receive commands to control relays. Is there a way to connect the 2 together wirelessly? Either blue tooth or WIFI, only problem is the setup is in a remote area without internet. The 2 boards will be within 30 feet of each other. I have been using Arduino boards for projects for about a year now so I am relatively new to Arduino and MCU boards and coding in general but I have never experimented with wireless communication before. I have connected boards wired via serial.
That's a lot of horsepower for a n00b.
There are client-server via SoftAP arrangements for ESP-type applications.
There are probably equivalents for Giga-Uno_R4, but I don't have a cut&paste for you - just some buzzwords to initiate your research with.
Hi @mikedalli ,
you have to create an access point at one of the two devices that the other device can connect to. For the Uno you can find an example here:
https://docs.arduino.cc/tutorials/uno-r4-wifi/wifi-examples/
Search the page for "access point".
The easiest way might be to create this access point and use a Web server application to control the relays.
It is also possible to create a UDP or TCIP connection but that requires a little bit more development effort.
Good luck!
ev2021
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Bluetooth might work, but that is about the limit of its range. Try it and see.
However, there are plenty of radio modules that emulate a serial port connection and have much larger range. The HC-12 is cheap and very easy to use. Example tutorial.
Set up each board as an access point with a static IP address. Call each other by IP.
Thanks a lot for the replies. I am going to give @ec2021 suggestion a shot and if I dont manager I will go with blue tooth as @jremington suggested. I did make a project a while back with blue tooth and it was fairly easy. In my line of work (industrial maintenance I have to tackle and trouble shoot profibus so I do have a slight understanding of serial communication and blue tooth isnt that much different .It should work pretty good for this project. But I still want to learn how to communicate with WIFI for future projects.
For an easy solution you may just use the bluetooth serial library
Here an example:
WiFi is probably an "overkill" ... 
Good luck!
ec2021
It is possible to connect your Arduino Giga R1 and Arduino Uno R4 WIFI wirelessly https://www.tp-link.com/ph/home-networking/wifi-router/archer-ax53/ , even if you are in a remote area without internet. Both Bluetooth and Wi-Fi can be used since the two boards are less than 30 feet away from each other.
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