tinclib-chat

An example chat app using tinclib

Setup

Install the CE C toolchain (v15.0) and put CEdev/bin on your PATH. tinclib (v0.6.0) and titrmlib (v0.4.2) are pinned git submodules under lib/. The protocol is nested inside tinclib:

git clone --recursive https://github.com/gavinhsmith/tinclib-chat.git
# or, in an existing clone:
git submodule update --init --recursive

Build

make

Produces bin/TINCCHAT.8xp. The calculator needs the CE C libraries (usbdrvce, srldrvce, fileioc, graphx, keypadc) and TINCLIBC for Wi-Fi setup.

Server and web client

node server/server.js   # PORT=3000 by default; Node 18+, no dependencies
node server/test.js     # API check

Open http://<your-pc>:3000 on a phone for the web client. On the calculator, enter that same address as host:port (not localhost; the board makes the request).

API (plain text, so the calculator doesn't parse JSON):

GET /messages?after=ID: one id<TAB>name<TAB>text line per newer message
POST /messages: body name<LF>text (name up to 16, text up to 200 printable ASCII characters)

The server keeps the last 100 messages in memory.

Calculator controls

Enter the server (host:port, e.g. 192.168.1.5:3000), then your name, then type messages and press [enter] to send. The server is saved in the TCHATSRV appvar and filled in next time. [clear] empties the field, and on an empty field quits.