Usage

Summary

This display has been designed to be used in tandem with its extensive REST API.
It offers full control over the display, allowing things such as:

• Changing the tube digits and brightness.
• Turning individual separators on/off.
• Modulating the LEDs beneath the IN-4 tubes.
• Modulating the LED below the ESP32.

Changes made to the display elements (tubes, LEDs) do not persist over reboots;
Each time the system starts up, a default state for every element is applied.

Connectivity

The display uses WiFi as a means of communication.

If no WiFi network has been configured, the ESP will start an Access Point.
This Access Point uses the following credentials:

• SSID: Nixie rack display
• PSK: NixieRackDisplay

In AP mode, the device itself will assume the IP 192.168.4.1/24.

A WiFi network can be defined using the /api/network endpoint.

Fallback

If the device fails to connect to a saved network, it will start an Access Point instead.

Tube handling

Nixie tubes are susceptible to something known as "cathode poisoning".
In short, lit filaments emit small amounts of particles which can deposit on inactive filaments.
Unsupervised, this will slowly build up a resistive coating that will eventually impair illumination power of a filament.

This coating can be mitigated or out right prevented by regularly, individually illuminating all the filaments in a tube.
Not every filament in a nixie tube is prone to poisoning equally.

⚠️ The display has no built in cathode detox routine.
Please provide your own implementation.