Redisplay

Redisplay is a project that uses OLED displays to monitor Redis activity. This project is the first prototype towards a general platform for tiny physical and remote monitors called Stat Cubes. It is still under development and it will be redesigned in future to support different services with a new hardware wireless platform.

Video

Architecture

The archictecure as it is today is very simple and is described in the image below. There is an application gathering information from the Redis server and then it serializes it using JSON and send it over Serial (FTDI/USB) to the Arduino which in turn is responsible for drawing the panels in the OLED display.

JSON is somehow overkill to send over the limited buffer that Arduino has for Serial, but it was designed intentionally because the Serial isn't going to be used in future for Stat Cubes.

Screenshots of the panels

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Arduino Requirements

To compile the Arduino (firmware) code, you'll need to install u8glib and ArduinoJson.

Arduino Installation

Just clone the repository inside a directory in your Arduino sketchbook directory.

Python Requirements

Use pip to install dependencies:

~# pip install -r monitor/pip_requirements.txt

Python Installation

To test it without a Redis server, use the Python code /monitor/redisplay_test.py, to test with a real Redis server, just use the /monitor/redisplay_monitor.py.