Trying to create a preset that selects a random preset within a range

[galle.led]

Hi,

I want to add a button to an esp32 that when pressed selects a random preset within a given range

According to JSON API - WLED Project ) the JSON key “ps” can be used to cycle through presets as such:

{“ps”:“5~10~”}

This behaves as expected, cycling through presets 5-10 in order.

The JSON API guide indicates that adding r to the end should randomize the order, I believe the syntax should look like this:

{“ps”:“5~10~r”}

But this does not choose a random preset, it still cycles through in order. Am I missing something or is this not functioning as described?

[divsys]

Someone else recently hit that same bug: Random Presets

They suggested using the HTTP API as there’s an issue with the JSON.

[galle.led]

Ahh thanks so much, I found the thread here:

JSON API issue with random selection in range

Hey all, Thought this would be an easy task but it’s stumped me. Want to have a preset (tied to a physical button) that selects a random preset. According to the docs, this should do it: {"ps": "4~10~r"} The documentation claims this will select a random preset between presets 4-10, but the behavior I see is simple incrementing, from 4 up to 10 in order. Has anyone gotten this “random within range” behavior to work correctly? Justin

And here is what works:
PL=r&P1=4&P2=10