Monocle

A multi-channel digital signal analyser written in rust that runs on a blue pill board.

It currently uses a separate chip for usb communication. Any device that can read serial data from a source and send it over USB should work.

Structure

The project consists of 3 parts:

• The code running on the hardware
• A serial reader and web-server running on a PC
• A gui written in elm that runs in a webbrowser

The hardware part reads signals and sends the raw data via serial to the host PC where the serial reader parses and stores the data. It then sends the data forward via websockets to the gui.

Build instructions

First of all, you will need some hardware. Naturally you will need a blue pill board, or at least some board with a stm32f103 chip. You will also need a separate serial to usb converter. I use a teensy lc running a simple relay sketch, but you could also use something like a FTDI adapter.

No hardware diagram is available at the moment so the best way to find the pins used by the project is to look in the init function in src/main.rs. The pins assigned to rx and tx are the pins used for serial and the pins assigned to pin1 and pin2 are the ones used for reading data.

Run openocd using make openocd and then run make to build the project in release mode and upload it to the device.

The host program is in host/. Run it using cargo run and specify the file for the serial reader (usually /dev/ttyACMx or /dev/ttyUSBx).

Run git submodule init && git submodule update to pull the graph rendering library

Finally, enter the host/frontend directory and run elm-reactor. Open src/Main.elm and it should connect to the host server and receive updates.

Based on https://github.com/boseji/rust-bluepill-quickstart.git