diff --git a/cmd/simulator/main.go b/cmd/simulator/main.go
index e852f4d..94968e8 100644
--- a/cmd/simulator/main.go
+++ b/cmd/simulator/main.go
@@ -4,76 +4,118 @@ import (
 	"fmt"
 	"log"
 	"math/rand"
+	"os"
 	"time"
 
 	"ble_simulator/internal/ble"
 	"ble_simulator/internal/device"
+	"ble_simulator/internal/tui"
 
+	tea "github.com/charmbracelet/bubbletea"
 	"tinygo.org/x/bluetooth"
 )
 
 func main() {
-	log.Println("[INFO] BLE Simulator v1.0")
+	// Create shared state and log buffer
+	state := device.NewDeviceState()
+	logBuffer := tui.NewLogBuffer(500)
+
+	logBuffer.Info("BLE Simulator v1.0")
 
 	adapter := bluetooth.DefaultAdapter
-	must("enable BLE", adapter.Enable())
+	if err := adapter.Enable(); err != nil {
+		log.Fatalf("Failed to enable BLE: %v", err)
+	}
+
+	// Channel for alarm notifications from TUI
+	notifyCh := make(chan string, 10)
 
 	// Connection handler
 	adapter.SetConnectHandler(func(dev bluetooth.Device, connected bool) {
 		if connected {
-			log.Printf("[CONN] Client Connected: %s", dev.Address.String())
+			state.IncrConnectedClients()
+			logBuffer.Conn("Client Connected: %s", dev.Address.String())
 		} else {
-			log.Println("[CONN] Client Disconnected")
+			state.DecrConnectedClients()
+			logBuffer.Conn("Client Disconnected")
 		}
 	})
 
-	// Setup device state and service
-	state := device.NewDeviceState()
-	notifyChar, err := ble.SetupService(adapter, state)
-	must("add service", err)
+	// Setup BLE service with logger
+	notifyChar, err := ble.SetupService(adapter, state, logBuffer)
+	if err != nil {
+		log.Fatalf("Failed to add service: %v", err)
+	}
 
 	// Configure advertising
 	adv := adapter.DefaultAdvertisement()
-	must("configure adv", adv.Configure(bluetooth.AdvertisementOptions{
+	if err := adv.Configure(bluetooth.AdvertisementOptions{
 		LocalName:    "GO_SIMULATOR",
 		ServiceUUIDs: []bluetooth.UUID{ble.ServiceUUID},
-	}))
+	}); err != nil {
+		log.Fatalf("Failed to configure advertising: %v", err)
+	}
 
-	must("start advertising", adv.Start())
+	if err := adv.Start(); err != nil {
+		log.Fatalf("Failed to start advertising: %v", err)
+	}
 
-	log.Println("[INFO] Advertising as GO_SIMULATOR...")
-	log.Println("[INFO] Using Nordic UART Service (NUS) UUIDs")
-	log.Println("[INFO] Service UUID: 6e400001-b5a3-f393-e0a9-e50e24dcca9e")
-	log.Println("[INFO] Command Char: 6e400002-b5a3-f393-e0a9-e50e24dcca9e (Write/RX)")
-	log.Println("[INFO] Notify Char:  6e400003-b5a3-f393-e0a9-e50e24dcca9e (Notify/TX)")
-	log.Println("[INFO] Waiting for connections...")
+	logBuffer.Info("Advertising as GO_SIMULATOR...")
+	logBuffer.Info("Using Nordic UART Service (NUS) UUIDs")
+	logBuffer.Info("Service UUID: 6e400001-b5a3-f393-e0a9-e50e24dcca9e")
+	logBuffer.Info("Command Char: 6e400002-b5a3-f393-e0a9-e50e24dcca9e (Write/RX)")
+	logBuffer.Info("Notify Char:  6e400003-b5a3-f393-e0a9-e50e24dcca9e (Notify/TX)")
+	logBuffer.Info("Waiting for connections...")
 
 	// Start notification loop (500ms heartbeat with sensor data)
-	go notificationLoop(notifyChar, state)
+	go notificationLoop(notifyChar, state, logBuffer, notifyCh)
 
-	// Block forever
-	select {}
+	// Create and run TUI
+	model := tui.NewModel(state, logBuffer, notifyCh)
+	p := tea.NewProgram(model, tea.WithAltScreen())
+
+	if _, err := p.Run(); err != nil {
+		fmt.Fprintf(os.Stderr, "Error running TUI: %v\n", err)
+		os.Exit(1)
+	}
 }
 
-func notificationLoop(char *bluetooth.Characteristic, state *device.DeviceState) {
+func notificationLoop(char *bluetooth.Characteristic, state *device.DeviceState, logger *tui.LogBuffer, notifyCh chan string) {
 	ticker := time.NewTicker(500 * time.Millisecond)
-	for range ticker.C {
-		value := state.GetSensorValue()
-		// Add small jitter for realism (-10 to +10)
-		jitter := rand.Intn(21) - 10
-		msg := fmt.Sprintf("SENSOR:%d", value+jitter)
+	for {
+		select {
+		case <-ticker.C:
+			// Check for alarm state and send alarm message if active
+			if alarmActive, alarmType := state.GetAlarmState(); alarmActive {
+				msg := fmt.Sprintf("ALARM: %s", alarmType)
+				_, err := char.Write([]byte(msg + "\n"))
+				if err == nil {
+					logger.TX("Sending: %s", msg)
+				}
+			}
 
-		_, err := char.Write([]byte(msg + "\n"))
-		if err != nil {
-			// Silently ignore write errors (no subscribers)
-			continue
+			// Send regular sensor data
+			value := state.GetSensorValue()
+			jitter := state.GetJitterRange()
+			jitterVal := 0
+			if jitter > 0 {
+				jitterVal = rand.Intn(jitter*2+1) - jitter
+			}
+			msg := fmt.Sprintf("SENSOR:%d", value+jitterVal)
+
+			_, err := char.Write([]byte(msg + "\n"))
+			if err != nil {
+				// Silently ignore write errors (no subscribers)
+				continue
+			}
+			logger.TX("Sending: %s", msg)
+
+		case alarmMsg := <-notifyCh:
+			// Handle alarm notifications from TUI
+			_, err := char.Write([]byte(alarmMsg + "\n"))
+			if err == nil {
+				logger.TX("Sending: %s", alarmMsg)
+			}
 		}
-		log.Printf("[TX] Sending: %s", msg)
-	}
-}
-
-func must(action string, err error) {
-	if err != nil {
-		log.Fatalf("Failed to %s: %v", action, err)
 	}
 }
diff --git a/docs.md b/docs.md
new file mode 100644
index 0000000..c35e4de
--- /dev/null
+++ b/docs.md
@@ -0,0 +1,81 @@
+# Manuale Protocollo Comandi V-BLACK (nRF52)
+
+**Data:** 19/01/2026  
+**Comunicazione:** Nordic UART Service (NUS)
+
+## 1. Introduzione
+
+Il dispositivo comunica tramite il servizio seriale standard Nordic UART.
+
+- **Caratteristica RX (Scrittura):** Canale per inviare i comandi alla scheda.
+- **Caratteristica TX (Notifica):** Canale per ricevere dati e risposte dalla scheda.
+
+> **NOTA IMPORTANTE:** Per modificare (W) o leggere (R) i parametri, è OBBLIGATORIO entrare prima in modalità programmazione inviando il comando `PROG_ON`.
+
+---
+
+## 2. Comandi di Controllo Globali
+
+Possono essere inviati in qualsiasi momento. Sono case-insensitive.
+
+| Comando    | Descrizione                                                    | Risposta Attesa                        |
+| :--------- | :------------------------------------------------------------- | :------------------------------------- |
+| `PROG_ON`  | Abilita Modalità Programmazione. Ferma l'allarme.              | `PROG_MODE: ON`                        |
+| `PROG_OFF` | Esce dalla Modalità Programmazione, salva e riabilita allarme. | `PROG_MODE: OFF`                       |
+| `RESET`    | Spegne uscita allarme e azzera i contatori.                    | `INFO: Uscita allarme resettata (BT).` |
+| `CALI`     | Attiva/Disattiva modalità diagnostica (Dati RAW veloci).       | `--- MODALITA CALIBRAZIONE ATTIVA ---` |
+| `FACTORY`  | Ripristino ai dati di fabbrica (Default).                      | `FACTORY RESET DONE`                   |
+
+---
+
+## 3. Configurazione Parametri (Scrittura 'W')
+
+**Requisito:** Modalità Programmazione ATTIVA.  
+**Formato:** `W<ID>=<VALORE>` (Esempio: `W1=1200`)
+
+| ID      | Nome               | Range     | Descrizione                                                                |
+| :------ | :----------------- | :-------- | :------------------------------------------------------------------------- |
+| **W1**  | Soglia Minima      | 0 - 2000  | Livello minimo vibrazione per urto. (100-500: Sensibile, 1000-1500: Medio) |
+| **W2**  | Soglia Massima     | 0 - 4095  | Filtro superiore disturbi. Default: 4000.                                  |
+| **W3**  | Conteggio Impulsi  | 1 - 50    | Numero di impulsi W1 necessari per allarme. Default: 2 o 3.                |
+| **W4**  | Finestra Tempo     | 10 - 1000 | Ciclo di analisi in ms per impulsi W3. Default: 40.                        |
+| **W20** | Gain (Wiper)       | 0 - 255   | Potenziometro digitale (0: max, 255: min).                                 |
+| **W11** | Durata Min Impulso | 0 - 1000  | Parametro avanzato/riservato.                                              |
+| **W12** | Durata Max Impulso | 0 - 1000  | Parametro avanzato/riservato.                                              |
+
+**Risposta tipica:** `OK: Parametro W1 impostato e salvato: 1200`
+
+---
+
+## 4. Lettura Parametri (Lettura 'R')
+
+**Formato:** `R<ID>` (Esempio: `R1`)
+
+| Comando | Risposta Ricevuta | Significato                       |
+| :------ | :---------------- | :-------------------------------- |
+| `R1`    | `PARAM: W1=1200`  | Restituisce valore Soglia Minima  |
+| `R2`    | `PARAM: W2=4000`  | Restituisce valore Soglia Massima |
+| ...     | ...               | ...                               |
+
+---
+
+## 5. Messaggi dal Dispositivo (Notifiche TX)
+
+### A. Streaming Dati (Heartbeat)
+
+Inviato ogni 500 ms.
+
+- **Formato:** `SENSOR:<valore>` (Esempio: `SENSOR:2067`)
+- **Nota:** Indica valore ADC a riposo (ideale ~2067).
+
+### B. Eventi di Allarme
+
+- `ALARM: TRIGGERED`: Vibrazione valida rilevata (Soglia W1 per W3 volte).
+- `ALARM: TAMPER`: Taglio cavi o corto circuito (Segnale fisso 0 o 4095).
+- `INFO: Allarme resettato automaticamente`: Fine tempo sirena (5s).
+
+### C. Errori Comuni
+
+- `ERRORE: I comandi 'W' sono accettati solo in modalità programmazione.`
+- `ERRORE: ID Sconosciuto`
+- `ERRORE: Formato comando non valido`
diff --git a/go.mod b/go.mod
index 41eb2f6..03d2e1b 100644
--- a/go.mod
+++ b/go.mod
@@ -3,15 +3,39 @@ module ble_simulator
 go 1.25.6
 
 require (
+	github.com/charmbracelet/bubbletea v1.3.10
+	github.com/charmbracelet/lipgloss v1.1.0
+	tinygo.org/x/bluetooth v0.14.0
+)
+
+require (
+	github.com/aymanbagabas/go-osc52/v2 v2.0.1 // indirect
+	github.com/charmbracelet/colorprofile v0.4.1 // indirect
+	github.com/charmbracelet/x/ansi v0.11.5 // indirect
+	github.com/charmbracelet/x/cellbuf v0.0.15 // indirect
+	github.com/charmbracelet/x/term v0.2.2 // indirect
+	github.com/clipperhouse/displaywidth v0.9.0 // indirect
+	github.com/clipperhouse/stringish v0.1.1 // indirect
+	github.com/clipperhouse/uax29/v2 v2.5.0 // indirect
+	github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f // indirect
 	github.com/go-ole/go-ole v1.2.6 // indirect
 	github.com/godbus/dbus/v5 v5.1.0 // indirect
+	github.com/lucasb-eyer/go-colorful v1.3.0 // indirect
+	github.com/mattn/go-isatty v0.0.20 // indirect
+	github.com/mattn/go-localereader v0.0.1 // indirect
+	github.com/mattn/go-runewidth v0.0.19 // indirect
+	github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 // indirect
+	github.com/muesli/cancelreader v0.2.2 // indirect
+	github.com/muesli/termenv v0.16.0 // indirect
+	github.com/rivo/uniseg v0.4.7 // indirect
 	github.com/saltosystems/winrt-go v0.0.0-20240509164145-4f7860a3bd2b // indirect
 	github.com/sirupsen/logrus v1.9.3 // indirect
 	github.com/soypat/cyw43439 v0.0.0-20250505012923-830110c8f4af // indirect
 	github.com/soypat/seqs v0.0.0-20250124201400-0d65bc7c1710 // indirect
 	github.com/tinygo-org/cbgo v0.0.4 // indirect
 	github.com/tinygo-org/pio v0.2.0 // indirect
+	github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e // indirect
 	golang.org/x/exp v0.0.0-20241204233417-43b7b7cde48d // indirect
-	golang.org/x/sys v0.11.0 // indirect
-	tinygo.org/x/bluetooth v0.14.0 // indirect
+	golang.org/x/sys v0.38.0 // indirect
+	golang.org/x/text v0.3.8 // indirect
 )
diff --git a/go.sum b/go.sum
index f621139..85b4e56 100644
--- a/go.sum
+++ b/go.sum
@@ -1,11 +1,51 @@
+github.com/aymanbagabas/go-osc52/v2 v2.0.1 h1:HwpRHbFMcZLEVr42D4p7XBqjyuxQH5SMiErDT4WkJ2k=
+github.com/aymanbagabas/go-osc52/v2 v2.0.1/go.mod h1:uYgXzlJ7ZpABp8OJ+exZzJJhRNQ2ASbcXHWsFqH8hp8=
+github.com/charmbracelet/bubbletea v1.3.10 h1:otUDHWMMzQSB0Pkc87rm691KZ3SWa4KUlvF9nRvCICw=
+github.com/charmbracelet/bubbletea v1.3.10/go.mod h1:ORQfo0fk8U+po9VaNvnV95UPWA1BitP1E0N6xJPlHr4=
+github.com/charmbracelet/colorprofile v0.4.1 h1:a1lO03qTrSIRaK8c3JRxJDZOvhvIeSco3ej+ngLk1kk=
+github.com/charmbracelet/colorprofile v0.4.1/go.mod h1:U1d9Dljmdf9DLegaJ0nGZNJvoXAhayhmidOdcBwAvKk=
+github.com/charmbracelet/lipgloss v1.1.0 h1:vYXsiLHVkK7fp74RkV7b2kq9+zDLoEU4MZoFqR/noCY=
+github.com/charmbracelet/lipgloss v1.1.0/go.mod h1:/6Q8FR2o+kj8rz4Dq0zQc3vYf7X+B0binUUBwA0aL30=
+github.com/charmbracelet/x/ansi v0.11.5 h1:NBWeBpj/lJPE3Q5l+Lusa4+mH6v7487OP8K0r1IhRg4=
+github.com/charmbracelet/x/ansi v0.11.5/go.mod h1:2JNYLgQUsyqaiLovhU2Rv/pb8r6ydXKS3NIttu3VGZQ=
+github.com/charmbracelet/x/cellbuf v0.0.15 h1:ur3pZy0o6z/R7EylET877CBxaiE1Sp1GMxoFPAIztPI=
+github.com/charmbracelet/x/cellbuf v0.0.15/go.mod h1:J1YVbR7MUuEGIFPCaaZ96KDl5NoS0DAWkskup+mOY+Q=
+github.com/charmbracelet/x/term v0.2.2 h1:xVRT/S2ZcKdhhOuSP4t5cLi5o+JxklsoEObBSgfgZRk=
+github.com/charmbracelet/x/term v0.2.2/go.mod h1:kF8CY5RddLWrsgVwpw4kAa6TESp6EB5y3uxGLeCqzAI=
+github.com/clipperhouse/displaywidth v0.9.0 h1:Qb4KOhYwRiN3viMv1v/3cTBlz3AcAZX3+y9OLhMtAtA=
+github.com/clipperhouse/displaywidth v0.9.0/go.mod h1:aCAAqTlh4GIVkhQnJpbL0T/WfcrJXHcj8C0yjYcjOZA=
+github.com/clipperhouse/stringish v0.1.1 h1:+NSqMOr3GR6k1FdRhhnXrLfztGzuG+VuFDfatpWHKCs=
+github.com/clipperhouse/stringish v0.1.1/go.mod h1:v/WhFtE1q0ovMta2+m+UbpZ+2/HEXNWYXQgCt4hdOzA=
+github.com/clipperhouse/uax29/v2 v2.5.0 h1:x7T0T4eTHDONxFJsL94uKNKPHrclyFI0lm7+w94cO8U=
+github.com/clipperhouse/uax29/v2 v2.5.0/go.mod h1:Wn1g7MK6OoeDT0vL+Q0SQLDz/KpfsVRgg6W7ihQeh4g=
 github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
 github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f h1:Y/CXytFA4m6baUTXGLOoWe4PQhGxaX0KpnayAqC48p4=
+github.com/erikgeiser/coninput v0.0.0-20211004153227-1c3628e74d0f/go.mod h1:vw97MGsxSvLiUE2X8qFplwetxpGLQrlU1Q9AUEIzCaM=
 github.com/go-ole/go-ole v1.2.6 h1:/Fpf6oFPoeFik9ty7siob0G6Ke8QvQEuVcuChpwXzpY=
 github.com/go-ole/go-ole v1.2.6/go.mod h1:pprOEPIfldk/42T2oK7lQ4v4JSDwmV0As9GaiUsvbm0=
 github.com/godbus/dbus/v5 v5.1.0 h1:4KLkAxT3aOY8Li4FRJe/KvhoNFFxo0m6fNuFUO8QJUk=
 github.com/godbus/dbus/v5 v5.1.0/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5xrFpKfA=
 github.com/konsorten/go-windows-terminal-sequences v1.0.1/go.mod h1:T0+1ngSBFLxvqU3pZ+m/2kptfBszLMUkC4ZK/EgS/cQ=
+github.com/lucasb-eyer/go-colorful v1.3.0 h1:2/yBRLdWBZKrf7gB40FoiKfAWYQ0lqNcbuQwVHXptag=
+github.com/lucasb-eyer/go-colorful v1.3.0/go.mod h1:R4dSotOR9KMtayYi1e77YzuveK+i7ruzyGqttikkLy0=
+github.com/mattn/go-isatty v0.0.20 h1:xfD0iDuEKnDkl03q4limB+vH+GxLEtL/jb4xVJSWWEY=
+github.com/mattn/go-isatty v0.0.20/go.mod h1:W+V8PltTTMOvKvAeJH7IuucS94S2C6jfK/D7dTCTo3Y=
+github.com/mattn/go-localereader v0.0.1 h1:ygSAOl7ZXTx4RdPYinUpg6W99U8jWvWi9Ye2JC/oIi4=
+github.com/mattn/go-localereader v0.0.1/go.mod h1:8fBrzywKY7BI3czFoHkuzRoWE9C+EiG4R1k4Cjx5p88=
+github.com/mattn/go-runewidth v0.0.19 h1:v++JhqYnZuu5jSKrk9RbgF5v4CGUjqRfBm05byFGLdw=
+github.com/mattn/go-runewidth v0.0.19/go.mod h1:XBkDxAl56ILZc9knddidhrOlY5R/pDhgLpndooCuJAs=
+github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6 h1:ZK8zHtRHOkbHy6Mmr5D264iyp3TiX5OmNcI5cIARiQI=
+github.com/muesli/ansi v0.0.0-20230316100256-276c6243b2f6/go.mod h1:CJlz5H+gyd6CUWT45Oy4q24RdLyn7Md9Vj2/ldJBSIo=
+github.com/muesli/cancelreader v0.2.2 h1:3I4Kt4BQjOR54NavqnDogx/MIoWBFa0StPA8ELUXHmA=
+github.com/muesli/cancelreader v0.2.2/go.mod h1:3XuTXfFS2VjM+HTLZY9Ak0l6eUKfijIfMUZ4EgX0QYo=
+github.com/muesli/termenv v0.16.0 h1:S5AlUN9dENB57rsbnkPyfdGuWIlkmzJjbFf0Tf5FWUc=
+github.com/muesli/termenv v0.16.0/go.mod h1:ZRfOIKPFDYQoDFF4Olj7/QJbW60Ol/kL1pU3VfY/Cnk=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
 github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/rivo/uniseg v0.4.7 h1:WUdvkW8uEhrYfLC4ZzdpI2ztxP1I582+49Oc5Mq64VQ=
+github.com/rivo/uniseg v0.4.7/go.mod h1:FN3SvrM+Zdj16jyLfmOkMNblXMcoc8DfTHruCPUcx88=
 github.com/saltosystems/winrt-go v0.0.0-20240509164145-4f7860a3bd2b h1:du3zG5fd8snsFN6RBoLA7fpaYV9ZQIsyH9snlk2Zvik=
 github.com/saltosystems/winrt-go v0.0.0-20240509164145-4f7860a3bd2b/go.mod h1:CIltaIm7qaANUIvzr0Vmz71lmQMAIbGJ7cvgzX7FMfA=
 github.com/sirupsen/logrus v1.5.0/go.mod h1:+F7Ogzej0PZc/94MaYx/nvG9jOFMD2osvC3s+Squfpo=
@@ -18,18 +58,28 @@ github.com/soypat/seqs v0.0.0-20250124201400-0d65bc7c1710/go.mod h1:oCVCNGCHMKoB
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
 github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+github.com/stretchr/testify v1.7.5 h1:s5PTfem8p8EbKQOctVV53k6jCJt3UX4IEJzwh+C324Q=
+github.com/stretchr/testify v1.7.5/go.mod h1:yNjHg4UonilssWZ8iaSj1OCr/vHnekPRkoO+kdMU+MU=
 github.com/tinygo-org/cbgo v0.0.4 h1:3D76CRYbH03Rudi8sEgs/YO0x3JIMdyq8jlQtk/44fU=
 github.com/tinygo-org/cbgo v0.0.4/go.mod h1:7+HgWIHd4nbAz0ESjGlJ1/v9LDU1Ox8MGzP9mah/fLk=
 github.com/tinygo-org/pio v0.2.0 h1:vo3xa6xDZ2rVtxrks/KcTZHF3qq4lyWOntvEvl2pOhU=
 github.com/tinygo-org/pio v0.2.0/go.mod h1:LU7Dw00NJ+N86QkeTGjMLNkYcEYMor6wTDpTCu0EaH8=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e h1:JVG44RsyaB9T2KIHavMF/ppJZNG9ZpyihvCd0w101no=
+github.com/xo/terminfo v0.0.0-20220910002029-abceb7e1c41e/go.mod h1:RbqR21r5mrJuqunuUZ/Dhy/avygyECGrLceyNeo4LiM=
 golang.org/x/exp v0.0.0-20241204233417-43b7b7cde48d h1:0olWaB5pg3+oychR51GUVCEsGkeCU/2JxjBgIo4f3M0=
 golang.org/x/exp v0.0.0-20241204233417-43b7b7cde48d/go.mod h1:qj5a5QZpwLU2NLQudwIN5koi3beDhSAlJwa67PuM98c=
 golang.org/x/sys v0.0.0-20190422165155-953cdadca894/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190916202348-b4ddaad3f8a3/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
+golang.org/x/sys v0.0.0-20210809222454-d867a43fc93e/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
 golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
-golang.org/x/sys v0.11.0 h1:eG7RXZHdqOJ1i+0lgLgCpSXAp6M3LYlAo6osgSi0xOM=
-golang.org/x/sys v0.11.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.6.0/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
+golang.org/x/sys v0.38.0 h1:3yZWxaJjBmCWXqhN1qh02AkOnCQ1poK6oF+a7xWL6Gc=
+golang.org/x/sys v0.38.0/go.mod h1:OgkHotnGiDImocRcuBABYBEXf8A9a87e/uXjp9XT3ks=
+golang.org/x/text v0.3.8 h1:nAL+RVCQ9uMn3vJZbV+MRnydTJFPf8qqY42YiA6MrqY=
+golang.org/x/text v0.3.8/go.mod h1:E6s5w1FMmriuDzIBO73fBruAKo1PCIq6d2Q6DHfQ8WQ=
 gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
 gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.1 h1:fxVm/GzAzEWqLHuvctI91KS9hhNmmWOoWu0XTYJS7CA=
+gopkg.in/yaml.v3 v3.0.1/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
 tinygo.org/x/bluetooth v0.14.0 h1:rrUaT+Fu6O0phGm4Y5UZULL8F7UahOq/JwGAPjJm+V4=
 tinygo.org/x/bluetooth v0.14.0/go.mod h1:YnyJRVX09i+wkFeHpXut0b+qHq+T2WwKBRRiF/scANA=
diff --git a/internal/ble/service.go b/internal/ble/service.go
index 6b0ebac..a488d58 100644
--- a/internal/ble/service.go
+++ b/internal/ble/service.go
@@ -2,13 +2,13 @@ package ble
 
 import (
 	"ble_simulator/internal/device"
-	"log"
+	"ble_simulator/internal/tui"
 
 	"tinygo.org/x/bluetooth"
 )
 
 // SetupService configures the GATT service with command and notify characteristics
-func SetupService(adapter *bluetooth.Adapter, state *device.DeviceState) (*bluetooth.Characteristic, error) {
+func SetupService(adapter *bluetooth.Adapter, state *device.DeviceState, logger *tui.LogBuffer) (*bluetooth.Characteristic, error) {
 	var notifyChar bluetooth.Characteristic
 
 	err := adapter.AddService(&bluetooth.Service{
@@ -20,15 +20,18 @@ func SetupService(adapter *bluetooth.Adapter, state *device.DeviceState) (*bluet
 					bluetooth.CharacteristicWriteWithoutResponsePermission,
 				WriteEvent: func(client bluetooth.Connection, offset int, value []byte) {
 					cmd := string(value)
-					log.Printf("[RX] Command: %s", cmd)
+					logger.RX("Command: %s", cmd)
 
 					response := state.ProcessCommand(cmd)
-					log.Printf("[TX] Response: %s", response)
+					logger.TX("Response: %s", response)
 
-					_, err := notifyChar.Write([]byte(response + "\n"))
-					if err != nil {
-						log.Printf("[ERR] Failed to send response: %v", err)
-					}
+					// Non-blocking write in goroutine to avoid blocking the BLE stack
+					go func() {
+						_, err := notifyChar.Write([]byte(response + "\n"))
+						if err != nil {
+							logger.Err("Failed to send response: %v", err)
+						}
+					}()
 				},
 			},
 			{
diff --git a/internal/device/state.go b/internal/device/state.go
index b1a0b8f..64be144 100644
--- a/internal/device/state.go
+++ b/internal/device/state.go
@@ -1,6 +1,9 @@
 package device
 
-import "sync"
+import (
+	"maps"
+	"sync"
+)
 
 // DeviceState holds the simulated device state with thread-safe access
 type DeviceState struct {
@@ -9,6 +12,7 @@ type DeviceState struct {
 	progMode    bool
 	caliMode    bool
 	alarmActive bool
+	alarmType   string // "TRIGGERED" or "TAMPER"
 
 	// Parameters from docs.toon
 	// W1=1200 (Min Threshold), W2=4000 (Max Threshold), W3=2 (Pulse Count),
@@ -16,6 +20,9 @@ type DeviceState struct {
 	params map[int]int
 
 	sensorValue int // Default 2067 (ideal rest value)
+	jitterRange int // Default 10 (means ±10)
+
+	connectedClients int // Track number of connected BLE clients
 }
 
 // NewDeviceState creates a new DeviceState with default values
@@ -24,16 +31,19 @@ func NewDeviceState() *DeviceState {
 		progMode:    false,
 		caliMode:    false,
 		alarmActive: false,
+		alarmType:   "",
 		params: map[int]int{
-			1:  1200, // W1 - Min Threshold
-			2:  4000, // W2 - Max Threshold
-			3:  2,    // W3 - Pulse Count
-			4:  40,   // W4 - Time Window
-			11: 0,    // W11 - Min Pulse Duration (reserved)
-			12: 0,    // W12 - Max Pulse Duration (reserved)
-			20: 128,  // W20 - Gain (Wiper)
+			1:  1000, // W1 - Min Threshold (middle of 0-2000)
+			2:  2047, // W2 - Max Threshold (middle of 0-4095)
+			3:  25,   // W3 - Pulse Count (middle of 1-50)
+			4:  505,  // W4 - Time Window (middle of 10-1000)
+			11: 0,    // W11 - Min Pulse Duration (min)
+			12: 1000, // W12 - Max Pulse Duration (max)
+			20: 127,  // W20 - Gain (middle of 0-255)
 		},
-		sensorValue: 2067,
+		sensorValue:      2067,
+		jitterRange:      10,
+		connectedClients: 0,
 	}
 }
 
@@ -109,14 +119,89 @@ func (s *DeviceState) ResetToDefaults() {
 	s.progMode = false
 	s.caliMode = false
 	s.alarmActive = false
+	s.alarmType = ""
 	s.params = map[int]int{
-		1:  1200,
-		2:  4000,
-		3:  2,
-		4:  40,
+		1:  1000,
+		2:  2047,
+		3:  25,
+		4:  505,
 		11: 0,
-		12: 0,
-		20: 128,
+		12: 1000,
+		20: 127,
 	}
 	s.sensorValue = 2067
+	s.jitterRange = 10
+}
+
+// SetSensorValue sets the current sensor value
+func (s *DeviceState) SetSensorValue(value int) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.sensorValue = value
+}
+
+// GetJitterRange returns the current jitter range
+func (s *DeviceState) GetJitterRange() int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.jitterRange
+}
+
+// SetJitterRange sets the jitter range
+func (s *DeviceState) SetJitterRange(jitter int) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.jitterRange = jitter
+}
+
+// TriggerAlarm triggers an alarm with the given type ("TRIGGERED" or "TAMPER")
+func (s *DeviceState) TriggerAlarm(alarmType string) {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.alarmActive = true
+	s.alarmType = alarmType
+}
+
+// GetAlarmType returns the current alarm type
+func (s *DeviceState) GetAlarmType() string {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.alarmType
+}
+
+// GetAlarmState returns both the alarm active state and type atomically
+func (s *DeviceState) GetAlarmState() (bool, string) {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.alarmActive, s.alarmType
+}
+
+// GetAllParams returns a copy of all parameters
+func (s *DeviceState) GetAllParams() map[int]int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return maps.Clone(s.params)
+}
+
+// IncrConnectedClients increments the connected clients count
+func (s *DeviceState) IncrConnectedClients() {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	s.connectedClients++
+}
+
+// DecrConnectedClients decrements the connected clients count
+func (s *DeviceState) DecrConnectedClients() {
+	s.mu.Lock()
+	defer s.mu.Unlock()
+	if s.connectedClients > 0 {
+		s.connectedClients--
+	}
+}
+
+// GetConnectedClients returns the number of connected clients
+func (s *DeviceState) GetConnectedClients() int {
+	s.mu.RLock()
+	defer s.mu.RUnlock()
+	return s.connectedClients
 }
diff --git a/internal/tui/logger.go b/internal/tui/logger.go
new file mode 100644
index 0000000..747826a
--- /dev/null
+++ b/internal/tui/logger.go
@@ -0,0 +1,89 @@
+package tui
+
+import (
+	"fmt"
+	"sync"
+	"time"
+)
+
+// LogEntry represents a single log entry with timestamp and level
+type LogEntry struct {
+	Time    time.Time
+	Level   string // INFO, CONN, TX, RX, ERR
+	Message string
+}
+
+// LogBuffer is a thread-safe circular buffer for log entries
+type LogBuffer struct {
+	mu      sync.RWMutex
+	entries []LogEntry
+	maxSize int
+}
+
+// NewLogBuffer creates a new LogBuffer with the given max size
+func NewLogBuffer(maxSize int) *LogBuffer {
+	return &LogBuffer{
+		entries: make([]LogEntry, 0, maxSize),
+		maxSize: maxSize,
+	}
+}
+
+// Log adds a new log entry
+func (l *LogBuffer) Log(level, message string) {
+	l.mu.Lock()
+	defer l.mu.Unlock()
+
+	entry := LogEntry{
+		Time:    time.Now(),
+		Level:   level,
+		Message: message,
+	}
+	l.entries = append(l.entries, entry)
+	if len(l.entries) > l.maxSize {
+		l.entries = l.entries[1:]
+	}
+	// No p.Send() - TUI refreshes via tick
+}
+
+// Info logs an INFO level message
+func (l *LogBuffer) Info(format string, args ...any) {
+	l.Log("INFO", fmt.Sprintf(format, args...))
+}
+
+// Conn logs a CONN level message
+func (l *LogBuffer) Conn(format string, args ...any) {
+	l.Log("CONN", fmt.Sprintf(format, args...))
+}
+
+// TX logs a TX level message
+func (l *LogBuffer) TX(format string, args ...any) {
+	l.Log("TX", fmt.Sprintf(format, args...))
+}
+
+// RX logs an RX level message
+func (l *LogBuffer) RX(format string, args ...any) {
+	l.Log("RX", fmt.Sprintf(format, args...))
+}
+
+// Err logs an ERR level message
+func (l *LogBuffer) Err(format string, args ...any) {
+	l.Log("ERR", fmt.Sprintf(format, args...))
+}
+
+// Entries returns a copy of all log entries
+func (l *LogBuffer) Entries() []LogEntry {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+
+	result := make([]LogEntry, len(l.entries))
+	copy(result, l.entries)
+	return result
+}
+
+// Len returns the number of entries
+func (l *LogBuffer) Len() int {
+	l.mu.RLock()
+	defer l.mu.RUnlock()
+	return len(l.entries)
+}
+
diff --git a/internal/tui/model.go b/internal/tui/model.go
new file mode 100644
index 0000000..0b9900c
--- /dev/null
+++ b/internal/tui/model.go
@@ -0,0 +1,125 @@
+package tui
+
+import (
+	"ble_simulator/internal/device"
+)
+
+// ControlType represents the type of control
+type ControlType int
+
+const (
+	ControlButton ControlType = iota
+	ControlSlider
+)
+
+// Control represents an interactive control in the TUI
+type Control struct {
+	Name     string
+	Type     ControlType
+	Action   func()        // For buttons
+	GetValue func() int    // For sliders
+	SetValue func(int)     // For sliders
+	Min      int           // For sliders
+	Max      int           // For sliders
+	Step     int           // For sliders
+}
+
+// FocusPanel represents which panel is focused
+type FocusPanel int
+
+const (
+	PanelControls FocusPanel = iota
+	PanelLogs
+)
+
+// Model is the main Bubble Tea model
+type Model struct {
+	state     *device.DeviceState
+	logBuffer *LogBuffer
+	notifyCh  chan string // Channel to send alarm notifications
+
+	controls     []Control
+	focusedCtrl  int
+	focusedPanel FocusPanel
+
+	logOffset int // Scroll offset for log view
+
+	width  int
+	height int
+
+	quitting bool
+}
+
+// NewModel creates a new TUI model
+func NewModel(state *device.DeviceState, logBuffer *LogBuffer, notifyCh chan string) Model {
+	m := Model{
+		state:        state,
+		logBuffer:    logBuffer,
+		notifyCh:     notifyCh,
+		focusedCtrl:  0,
+		focusedPanel: PanelControls,
+		logOffset:    0,
+		width:        80,
+		height:       24,
+	}
+
+	// Setup controls
+	m.controls = []Control{
+		{
+			Name: "Trigger Alarm",
+			Type: ControlButton,
+			Action: func() {
+				state.TriggerAlarm("TRIGGERED")
+				logBuffer.Info("Alarm triggered manually")
+				if notifyCh != nil {
+					select {
+					case notifyCh <- "ALARM: TRIGGERED":
+					default:
+					}
+				}
+			},
+		},
+		{
+			Name: "Trigger Tamper",
+			Type: ControlButton,
+			Action: func() {
+				state.TriggerAlarm("TAMPER")
+				logBuffer.Info("Tamper alarm triggered manually")
+				if notifyCh != nil {
+					select {
+					case notifyCh <- "ALARM: TAMPER":
+					default:
+					}
+				}
+			},
+		},
+		{
+			Name: "Reset Alarm",
+			Type: ControlButton,
+			Action: func() {
+				state.ResetAlarm()
+				logBuffer.Info("Alarm reset")
+			},
+		},
+		{
+			Name:     "Sensor Value",
+			Type:     ControlSlider,
+			GetValue: state.GetSensorValue,
+			SetValue: state.SetSensorValue,
+			Min:      0,
+			Max:      4095,
+			Step:     50,
+		},
+		{
+			Name:     "Jitter Range",
+			Type:     ControlSlider,
+			GetValue: state.GetJitterRange,
+			SetValue: state.SetJitterRange,
+			Min:      0,
+			Max:      100,
+			Step:     5,
+		},
+	}
+
+	return m
+}
diff --git a/internal/tui/update.go b/internal/tui/update.go
new file mode 100644
index 0000000..e911264
--- /dev/null
+++ b/internal/tui/update.go
@@ -0,0 +1,151 @@
+package tui
+
+import (
+	"time"
+
+	tea "github.com/charmbracelet/bubbletea"
+)
+
+// tickMsg is sent periodically to refresh the TUI
+type tickMsg time.Time
+
+// tickCmd returns a command that sends a tickMsg after 100ms
+func tickCmd() tea.Cmd {
+	return tea.Tick(100*time.Millisecond, func(t time.Time) tea.Msg {
+		return tickMsg(t)
+	})
+}
+
+// Init initializes the model and starts the tick loop
+func (m Model) Init() tea.Cmd {
+	return tickCmd()
+}
+
+// Update handles messages and updates the model
+func (m Model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
+	switch msg := msg.(type) {
+	case tickMsg:
+		// Tick fired, refresh and continue ticking
+		return m, tickCmd()
+
+	case tea.KeyMsg:
+		return m.handleKeypress(msg)
+
+	case tea.WindowSizeMsg:
+		m.width = msg.Width
+		m.height = msg.Height
+		return m, nil
+	}
+
+	return m, nil
+}
+
+// handleKeypress handles keyboard input
+func (m Model) handleKeypress(msg tea.KeyMsg) (tea.Model, tea.Cmd) {
+	switch msg.String() {
+	case "q", "ctrl+c":
+		m.quitting = true
+		return m, tea.Quit
+
+	case "tab":
+		// Switch focus between panels
+		if m.focusedPanel == PanelControls {
+			m.focusedPanel = PanelLogs
+		} else {
+			m.focusedPanel = PanelControls
+		}
+		return m, nil
+
+	case "up", "k":
+		if m.focusedPanel == PanelControls {
+			if m.focusedCtrl > 0 {
+				m.focusedCtrl--
+			}
+		} else {
+			// Scroll logs up
+			maxOffset := max(m.logBuffer.Len()-(m.height-10), 0)
+			if m.logOffset < maxOffset {
+				m.logOffset++
+			}
+		}
+		return m, nil
+
+	case "down", "j":
+		if m.focusedPanel == PanelControls {
+			if m.focusedCtrl < len(m.controls)-1 {
+				m.focusedCtrl++
+			}
+		} else {
+			// Scroll logs down
+			if m.logOffset > 0 {
+				m.logOffset--
+			}
+		}
+		return m, nil
+
+	case "left", "h":
+		if m.focusedPanel == PanelControls {
+			ctrl := &m.controls[m.focusedCtrl]
+			if ctrl.Type == ControlSlider {
+				value := ctrl.GetValue()
+				newValue := max(value-ctrl.Step, ctrl.Min)
+				ctrl.SetValue(newValue)
+			}
+		}
+		return m, nil
+
+	case "right", "l":
+		if m.focusedPanel == PanelControls {
+			ctrl := &m.controls[m.focusedCtrl]
+			if ctrl.Type == ControlSlider {
+				value := ctrl.GetValue()
+				newValue := min(value+ctrl.Step, ctrl.Max)
+				ctrl.SetValue(newValue)
+			}
+		}
+		return m, nil
+
+	case "enter", " ":
+		if m.focusedPanel == PanelControls {
+			ctrl := &m.controls[m.focusedCtrl]
+			if ctrl.Type == ControlButton && ctrl.Action != nil {
+				ctrl.Action()
+			}
+		}
+		return m, nil
+
+	case "home":
+		// Jump to top of logs
+		if m.focusedPanel == PanelLogs {
+			maxOffset := m.logBuffer.Len() - (m.height - 10)
+			if maxOffset > 0 {
+				m.logOffset = maxOffset
+			}
+		}
+		return m, nil
+
+	case "end":
+		// Jump to bottom of logs
+		if m.focusedPanel == PanelLogs {
+			m.logOffset = 0
+		}
+		return m, nil
+
+	case "pgup":
+		if m.focusedPanel == PanelLogs {
+			pageSize := m.height - 10
+			maxOffset := max(m.logBuffer.Len()-pageSize, 0)
+			m.logOffset = min(m.logOffset+pageSize, maxOffset)
+		}
+		return m, nil
+
+	case "pgdown":
+		if m.focusedPanel == PanelLogs {
+			pageSize := m.height - 10
+			m.logOffset = max(m.logOffset-pageSize, 0)
+		}
+		return m, nil
+	}
+
+	return m, nil
+}
diff --git a/internal/tui/view.go b/internal/tui/view.go
new file mode 100644
index 0000000..d82f9ff
--- /dev/null
+++ b/internal/tui/view.go
@@ -0,0 +1,290 @@
+package tui
+
+import (
+	"fmt"
+	"strings"
+
+	"github.com/charmbracelet/lipgloss"
+)
+
+// Styles for the TUI
+var (
+	// Colors
+	primaryColor   = lipgloss.Color("39")  // Light blue
+	secondaryColor = lipgloss.Color("245") // Gray
+	accentColor    = lipgloss.Color("205") // Pink
+	successColor   = lipgloss.Color("46")  // Green
+	warningColor   = lipgloss.Color("226") // Yellow
+	errorColor     = lipgloss.Color("196") // Red
+
+	// Panel styles
+	panelStyle = lipgloss.NewStyle().
+			Border(lipgloss.RoundedBorder()).
+			BorderForeground(secondaryColor).
+			Padding(0, 1)
+
+	activePanelStyle = lipgloss.NewStyle().
+				Border(lipgloss.RoundedBorder()).
+				BorderForeground(primaryColor).
+				Padding(0, 1)
+
+	// Title styles
+	titleStyle = lipgloss.NewStyle().
+			Bold(true).
+			Foreground(primaryColor).
+			MarginBottom(1)
+
+	// Button styles
+	buttonStyle = lipgloss.NewStyle().
+			Padding(0, 2).
+			Background(secondaryColor).
+			Foreground(lipgloss.Color("0"))
+
+	activeButtonStyle = lipgloss.NewStyle().
+				Padding(0, 2).
+				Background(primaryColor).
+				Foreground(lipgloss.Color("0")).
+				Bold(true)
+
+	// Slider styles
+	sliderLabelStyle = lipgloss.NewStyle().
+				Width(14)
+
+	sliderValueStyle = lipgloss.NewStyle().
+				Width(6).
+				Align(lipgloss.Right)
+
+	// Log level styles
+	logLevelStyles = map[string]lipgloss.Style{
+		"INFO": lipgloss.NewStyle().Foreground(successColor),
+		"CONN": lipgloss.NewStyle().Foreground(primaryColor),
+		"TX":   lipgloss.NewStyle().Foreground(accentColor),
+		"RX":   lipgloss.NewStyle().Foreground(warningColor),
+		"ERR":  lipgloss.NewStyle().Foreground(errorColor),
+	}
+
+	// Status styles
+	statusOnStyle = lipgloss.NewStyle().
+			Foreground(successColor).
+			Bold(true)
+
+	statusOffStyle = lipgloss.NewStyle().
+			Foreground(secondaryColor)
+
+	// Help style
+	helpStyle = lipgloss.NewStyle().
+			Foreground(secondaryColor).
+			Italic(true)
+)
+
+// View renders the TUI
+func (m Model) View() string {
+	if m.quitting {
+		return "Goodbye!\n"
+	}
+
+	// Calculate panel widths
+	leftWidth := m.width/2 - 2
+	rightWidth := m.width - leftWidth - 6
+
+	// Render panels
+	leftPanel := m.renderControlsPanel(leftWidth)
+	rightPanel := m.renderLogsPanel(rightWidth)
+
+	// Apply panel styles based on focus
+	var leftStyled, rightStyled string
+	if m.focusedPanel == PanelControls {
+		leftStyled = activePanelStyle.Width(leftWidth).Render(leftPanel)
+		rightStyled = panelStyle.Width(rightWidth).Render(rightPanel)
+	} else {
+		leftStyled = panelStyle.Width(leftWidth).Render(leftPanel)
+		rightStyled = activePanelStyle.Width(rightWidth).Render(rightPanel)
+	}
+
+	// Join panels horizontally
+	content := lipgloss.JoinHorizontal(lipgloss.Top, leftStyled, rightStyled)
+
+	// Add title and help
+	title := titleStyle.Render("BLE Simulator TUI")
+	help := helpStyle.Render("↑↓: Navigate  ←→: Adjust  Enter: Activate  Tab: Switch Panel  q: Quit")
+
+	return lipgloss.JoinVertical(lipgloss.Left, title, content, help)
+}
+
+// renderControlsPanel renders the left controls panel
+func (m Model) renderControlsPanel(width int) string {
+	var b strings.Builder
+
+	b.WriteString(titleStyle.Render("Controls"))
+	b.WriteString("\n\n")
+
+	// Render interactive controls
+	for i, ctrl := range m.controls {
+		isActive := m.focusedPanel == PanelControls && i == m.focusedCtrl
+
+		switch ctrl.Type {
+		case ControlButton:
+			if isActive {
+				b.WriteString(activeButtonStyle.Render(ctrl.Name))
+			} else {
+				b.WriteString(buttonStyle.Render(ctrl.Name))
+			}
+			b.WriteString("\n")
+
+		case ControlSlider:
+			b.WriteString(m.renderSlider(ctrl, isActive, width-4))
+			b.WriteString("\n")
+		}
+		b.WriteString("\n")
+	}
+
+	// Parameter display section
+	b.WriteString("\n")
+	b.WriteString(titleStyle.Render("Parameters (R/O)"))
+	b.WriteString("\n\n")
+
+	params := m.state.GetAllParams()
+	paramOrder := []int{1, 2, 3, 4, 11, 12, 20}
+	paramNames := map[int]string{
+		1:  "W1  (Min)",
+		2:  "W2  (Max)",
+		3:  "W3  (Pulses)",
+		4:  "W4  (Time)",
+		11: "W11 (MinPD)",
+		12: "W12 (MaxPD)",
+		20: "W20 (Gain)",
+	}
+	paramRanges := map[int][2]int{
+		1:  {0, 2000},
+		2:  {0, 4095},
+		3:  {1, 50},
+		4:  {10, 1000},
+		11: {0, 1000},
+		12: {0, 1000},
+		20: {0, 255},
+	}
+
+	for _, id := range paramOrder {
+		val := params[id]
+		rng := paramRanges[id]
+		name := paramNames[id]
+		bar := m.renderProgressBar(val, rng[0], rng[1], 10)
+		b.WriteString(fmt.Sprintf("%s %s %d\n", sliderLabelStyle.Render(name), bar, val))
+	}
+
+	// Status section
+	b.WriteString("\n")
+	b.WriteString(titleStyle.Render("Status"))
+	b.WriteString("\n\n")
+
+	// Connection status
+	connCount := m.state.GetConnectedClients()
+	if connCount > 0 {
+		b.WriteString(fmt.Sprintf("Connected: %s\n", statusOnStyle.Render(fmt.Sprintf("Yes (%d)", connCount))))
+	} else {
+		b.WriteString(fmt.Sprintf("Connected: %s\n", statusOffStyle.Render("No")))
+	}
+
+	// Alarm status
+	if alarmActive, alarmType := m.state.GetAlarmState(); alarmActive {
+		b.WriteString(fmt.Sprintf("Alarm: %s\n", statusOnStyle.Render(alarmType)))
+	} else {
+		b.WriteString(fmt.Sprintf("Alarm: %s\n", statusOffStyle.Render("OFF")))
+	}
+
+	// Prog mode status
+	if m.state.GetProgMode() {
+		b.WriteString(fmt.Sprintf("Prog Mode: %s\n", statusOnStyle.Render("ON")))
+	} else {
+		b.WriteString(fmt.Sprintf("Prog Mode: %s\n", statusOffStyle.Render("OFF")))
+	}
+
+	return b.String()
+}
+
+// renderSlider renders a slider control
+func (m Model) renderSlider(ctrl Control, isActive bool, _ int) string {
+	value := ctrl.GetValue()
+	bar := m.renderProgressBar(value, ctrl.Min, ctrl.Max, 15)
+
+	label := sliderLabelStyle.Render(ctrl.Name)
+	valueStr := sliderValueStyle.Render(fmt.Sprintf("%d", value))
+
+	var prefix string
+	if isActive {
+		prefix = lipgloss.NewStyle().Foreground(primaryColor).Bold(true).Render("> ")
+	} else {
+		prefix = "  "
+	}
+
+	return fmt.Sprintf("%s%s %s %s", prefix, label, bar, valueStr)
+}
+
+// renderProgressBar renders a progress bar
+func (m Model) renderProgressBar(value, min, max, barWidth int) string {
+	if max <= min {
+		return strings.Repeat("░", barWidth)
+	}
+
+	ratio := float64(value-min) / float64(max-min)
+	filled := int(ratio * float64(barWidth))
+	if filled > barWidth {
+		filled = barWidth
+	}
+	if filled < 0 {
+		filled = 0
+	}
+
+	filledStyle := lipgloss.NewStyle().Foreground(primaryColor)
+	emptyStyle := lipgloss.NewStyle().Foreground(secondaryColor)
+
+	return filledStyle.Render(strings.Repeat("█", filled)) +
+		emptyStyle.Render(strings.Repeat("░", barWidth-filled))
+}
+
+// renderLogsPanel renders the right logs panel
+func (m Model) renderLogsPanel(width int) string {
+	var b strings.Builder
+
+	b.WriteString(titleStyle.Render("Logs"))
+	b.WriteString("\n\n")
+
+	entries := m.logBuffer.Entries()
+	maxVisible := m.height - 10 // Account for borders, title, help
+
+	maxVisible = max(maxVisible, 1)
+
+	// Calculate which entries to show
+	start := max(len(entries)-maxVisible-m.logOffset, 0)
+	end := min(start+maxVisible, len(entries))
+
+	for i := start; i < end; i++ {
+		entry := entries[i]
+
+		// Format log entry
+		levelStyle, ok := logLevelStyles[entry.Level]
+		if !ok {
+			levelStyle = lipgloss.NewStyle()
+		}
+
+		timeStr := entry.Time.Format("15:04:05")
+		levelStr := levelStyle.Render(fmt.Sprintf("[%s]", entry.Level))
+
+		// Truncate message if too long
+		msg := entry.Message
+		maxMsgLen := max(width-16, 10)
+		if len(msg) > maxMsgLen {
+			msg = msg[:maxMsgLen-3] + "..."
+		}
+
+		b.WriteString(fmt.Sprintf("%s %s %s\n", timeStr, levelStr, msg))
+	}
+
+	// Show scroll indicator if needed
+	if len(entries) > maxVisible {
+		indicator := fmt.Sprintf("\n[%d/%d entries]", end, len(entries))
+		b.WriteString(helpStyle.Render(indicator))
+	}
+
+	return b.String()
+}