Sequencer panel

[MCMTom]

I would like to create a sequencer panel using CTRLR (version 5.3.201). The goal is to build a simple but expandable 32-step sequencer that can later be extended with additional features.
The following controls are planned:
• A Start/Stop button (seqStart) with two states (Start/Stop) to control playback.
• A Reset button (seqReset) with two states (Reset/Reset) to return the sequencer to step 1.
• A Clock slider (clockSlider) with a range from 0–127 to control the tempo/speed of the sequencer.
For the 32 steps, each step includes the following elements:
• Note sliders (stepNote1 to stepNote32): select the note per step (range 0–47, corresponding to C1 to B4).
• LED indicators (seqLED1 to seqLED32): visual feedback for the currently active step.
• Gate buttons (stepGate1 to stepGate32): enable/disable each step.
• Modulation sliders (stepCc1 to stepCc32): reserved for future MIDI CC modulation (not yet connected, only prepared for later use).
The goal is to build a working 32-step sequencer panel in CTRLR that runs stably first, and can then be expanded step by step with more advanced functionality.

[MCMTom]

My Script
Built-In / Globals:

-- SEQUENCER GLOBALS

Sequencer = {

isRunning = false,
currentStep = 1,

bpm = 120,
interval = 125,

timer = nil,

-- spätere Erweiterung:
swing = 0,
direction = "forward",
patternLength = 32

}

Group
SEQUENCER
Methode 1
seqStartStop:

-- SEQUENCER ENGINE (CTRLR SAFE - NO TIMER API)

if Sequencer == nil then
Sequencer = {}
end

Sequencer.isRunning = Sequencer.isRunning or false
Sequencer.currentStep = Sequencer.currentStep or 1
Sequencer.bpm = Sequencer.bpm or 120

---

-- UI START/STOP

function seqStartStop()

if panel_is_loading then return end

Sequencer.isRunning = not Sequencer.isRunning

if Sequencer.isRunning then
    console("SEQUENCER START")
else
    console("SEQUENCER STOP")
end

end

---

-- RESET

function seqReset()

if panel_is_loading then return end

Sequencer.currentStep = 1
console("RESET → Step 1")

end

---

-- STEP ENGINE (WIRD VON CTRLR TRIGGERED)

function seqStep()

if not Sequencer.isRunning then return end

Sequencer.currentStep = Sequencer.currentStep + 1

if Sequencer.currentStep > 32 then
    Sequencer.currentStep = 1
end

console("STEP → " .. Sequencer.currentStep)

end

Methode 2

seqStep:

function seqStep()

Sequencer.currentStep = Sequencer.currentStep + 1

if Sequencer.currentStep > 32 then
    Sequencer.currentStep = 1
end

console("STEP → " .. Sequencer.currentStep)

-- 🔥 HIER später:
-- LEDs
-- Gate
-- MIDI
-- Motor Sync

end

Methode 3

seqClockTick:

function seqClockTick()

if panel_is_loading then return end
if not Sequencer.isRunning then return end

Sequencer.clockCounter = (Sequencer.clockCounter or 0) + 1

local speed = panel:getModulatorByName("clockSlider"):getValue()
Sequencer.bpm = speed

local threshold = math.max(1, math.floor(127 / Sequencer.bpm))

if Sequencer.clockCounter >= threshold then
    Sequencer.clockCounter = 0
    seqStep()
end

end

LUA

Methode 4

seqReset:

function seqReset()

if panel_is_loading then return end
if Sequencer == nil then return end

Sequencer.currentStep = 1

console("RESET → 1")

end