For your chat device, you might be interested in checking out the Grey Cat collective, https://greycat.co , they have a hardware kit that sounds similar to what you are describing. Unfortunately, I think their code is still closed source and last time I played with it (August 2018), it was only demo and the keyboard was not yet implemented. Alternatively, you could build your own box around a Disaster Radio. While it wasn't designed to have a screen, I'm sure you could adapt its code to print messages to a built-in screen (probably an SPI OLED is your best best) and take input from a physical keyboard (or a push button matrix?). I'd recommend getting in touch with sudomeshers in Oakland who could send you a Disaster Radio prototype to play around with. If you are able to get a prototype, I'd be happy to walk you through the code, since I'm the one mostly responsible for it's current state. You can find the code and other resources here https://github.com/sudomesh/disaster-radio , there are also schematics and board designs in there, if you are up for printing your own circuit board. Good luck!!! -grant (@paidforby) On Tue, May 14, 2019 at 1:46 AM moonlit fpv <mlit83(a)gmail.com> wrote: > Good day!I've recently been very captivated by the LoRa movement, and I started out last year using > the LoRa chipset to fly drones kilometer after kilometer with telemetry. Then yesterday I had a > plan to order some hardware to build two terminals for my kids so that they can chat! (or IM if u > will..) Haven't quite landed on screen size yet, but I'm thinking a 4" should be more than enough. > Then for input I'm thinking oldskool texting like I did when I was a kid, a numpad with three > letters on each number. Or just a few buttons would work too scrolling through. I am building this! > If anyone has any ideas or tips, please find me! > > Then I found your project! Disaster Radio! And I luv it!! So I want to build a node! Here, in > Norway! > > Best regards, Roger > > _______________________________________________ > DisasterRadio mailing list > DisasterRadio(a)lists.sudoroom.org > https://sudoroom.org/lists/listinfo/disasterradio