Docs: document zone-based scanning; make version example non-drifting

The Scanning section only said 'per upstream OpenGD77', which left the
scan-list question unanswered. Explain that zones are the scan list, the
Zone Skip / All Skip flags, the start key and the Radio options settings.
Also replace the version example that goes stale every release.

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

CHANGELOG.md

@@ -9,6 +9,18 @@ single running list until the first versioned release.
 
 _Nothing yet._
 
+## 0.11.0
+
+- **CRT-style shut-off animation** — when powering off, the current screen
+  collapses towards the middle (squeezed to a line, then a dot) like an old CRT
+  switching off, replacing the "Power Off" message. (Colour displays only.)
+
+## 0.10.1
+
+- **Fix:** the muted **"M"** indicator in the status bar overlapped the GPS text
+  when GPS was enabled. The header icon is removed; the muted state is shown by
+  the flashing red LED alone.
+
 ## 0.10.0
 
 - **SMS recipient from contacts** — when composing a message, press **GREEN** in

MANUAL.md

@@ -59,6 +59,11 @@ Optionally dims the backlight after inactivity to **100 / 50 / 30 / 15 %** of th
 configured brightness (only in **Auto** backlight mode). Any activity restores full
 brightness. Set it in **Menu → Options → Display Options → Screen Dim**.
 
+### Shut-off animation — 🟢 [FreeTRX]
+Powering off collapses whatever is on screen towards the middle — squeezed to a
+line, then a dot — like an old CRT switching off, in place of the "Power Off"
+message. (Once the animation starts, the power-off is committed.)
+
 ### Theme presets — 🟢 [FreeTRX]
 Pick a colour theme on the radio at **Menu → Options → Display Options → "Theme"**
 (◀/▶ to change; the screen updates live):
@@ -80,8 +85,7 @@ Editing colours in the CPS only affects **Custom**; the built-in presets are
 fixed. Every element (S-meter, frequencies, menus) follows the selected theme.
 
 ### Mute indicator — 🟢 [FreeTRX]
-While muted, a bold **"M"** appears in the status bar (just left of the battery)
-and the **red LED flashes** (0.5 s every 2 s). See *Mute* below.
+While muted, the **red LED flashes** (0.5 s every 2 s). See *Mute* below.
 
 ---
 
@@ -114,8 +118,21 @@ A real-time signal-strength-vs-frequency graph centred on the VFO frequency.
 - The scope is **VFO-only** (not available in Channel mode).
 
 ### Scanning — ⚪ [OpenGD77]
-Channel and VFO scanning with hold/pause behaviour, per the upstream OpenGD77
-controls.
+**There are no scan lists.** Unlike the vendor CPS, OpenGD77 scans **the channels
+of the currently selected zone** — so a zone *is* the scan list. To scan a
+particular set of channels, put them in a zone and select it. The **All Channels**
+virtual zone scans every channel in the codeplug.
+
+- **Start/stop:** long-press **UP** on the Channel or VFO screen (**RED** stops).
+- **Exclude a channel:** **Menu → Channel details** (or **SK2 + green** on the
+  Channel screen) → **Zone Skip** (skipped when scanning a normal zone) and
+  **All Skip** (skipped when scanning *All Channels*).
+- **Settings:** **Menu → Options → Radio options** → **Scan delay**,
+  **Scan dwell**, **Scan mode** (Hold / Pause / Stop) and **Scan On Boot**.
+
+Note: in the codeplug these two skip flags reuse the old "Auto Scan" and "Lone
+Worker" bits, so a vendor CPS may label them differently — set them on the radio
+to avoid confusion.
 
 ### Quick menu — ⚪ [OpenGD77] (with 🟢 [FreeTRX] additions)
 Press the **top / orange** button to open the quick menu for the current screen
@@ -159,6 +176,11 @@ Talkgroups/contacts, timeslots, colour codes, RX groups, and hotspot mode, all p
 upstream OpenGD77. The AMBE voice codec is merged in at flash time (see
 [`TOOLS.md`](TOOLS.md)).
 
+### Contacts list — 🟢 [FreeTRX]
+**Menu → Contacts** lists all contact types together under the title "Contacts"
+(instead of defaulting to the group filter). Press **`#`** to cycle the filter:
+all → groups → private → all-call → all.
+
 ### DMR reliability fix — 🟢 [FreeTRX]
 FreeTRX resolves a hard-fault (freeze needing a battery pull) on the DMR path that
 affected recent self-built OpenGD77 revisions — the codec is called through C
@@ -201,9 +223,10 @@ second or two a message is on air; hotspot mode is unaffected.
 
 ## About & versioning — 🟢 [FreeTRX]
 
-**Menu → Firmware info** shows the **FreeTRX version** (semantic versioning, e.g.
-`FreeTRX v0.4.0`) alongside the git commit ID. Pre-1.0 builds are published as
-pre-releases. See [`CHANGELOG.md`](CHANGELOG.md) for the full history.
+**Menu → Firmware info** shows the **FreeTRX version** (semantic versioning,
+`FreeTRX vMAJOR.MINOR.PATCH`) alongside the git commit ID. Pre-1.0 builds are
+published as pre-releases. See [`CHANGELOG.md`](CHANGELOG.md) for the full
+history.
 
 ---
 

MDUV380_firmware/application/include/freetrxVersion.h

@@ -5,9 +5,9 @@
 #define _FREETRX_VERSION_H_
 
 #define FREETRX_VERSION_MAJOR   0
-#define FREETRX_VERSION_MINOR   10
+#define FREETRX_VERSION_MINOR   11
 #define FREETRX_VERSION_PATCH   0
 
-#define FREETRX_VERSION         "0.10.0"
+#define FREETRX_VERSION         "0.11.0"
 
 #endif // _FREETRX_VERSION_H_

MDUV380_firmware/application/include/user_interface/menuSystem.h

@@ -267,6 +267,9 @@ bool uiNotificationHasTimedOut(void);
 bool uiNotificationIsVisible(void);
 void uiNotificationHide(bool immediateRender);
 uiNotificationID_t uiNotificationGetId(void);
+#if defined(HAS_COLOURS)
+uint16_t *uiNotificationGetOffscreenBuffer(void); // full-screen scratch (borrowed by the shutdown animation)
+#endif
 
 
 #if defined(HAS_GPS)

MDUV380_firmware/application/source/user_interface/uiNotification.c

@@ -351,6 +351,15 @@ uiNotificationID_t uiNotificationGetId(void)
 	return notificationData.id;
 }
 
+#if defined(HAS_COLOURS)
+// Expose the full-screen offscreen buffer so the shutdown animation can borrow
+// it as scratch (no notification is active while powering off).
+uint16_t *uiNotificationGetOffscreenBuffer(void)
+{
+	return screenNotificationBufData;
+}
+#endif
+
 static void displayMessage(void)
 {
 	char msg[SCREEN_LINE_BUFFER_SIZE];

MDUV380_firmware/application/source/user_interface/uiPowerOff.c

@@ -25,18 +25,25 @@
  * USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  *
  */
+#include <string.h>
 #include "user_interface/uiGlobals.h"
 #include "user_interface/menuSystem.h"
 #include "user_interface/uiLocalisation.h"
+#include "functions/ticks.h"
 #if defined(PLATFORM_MD9600) || defined(PLATFORM_MD380) || defined(PLATFORM_MDUV380) || defined(PLATFORM_RT84_DM1701) || defined(PLATFORM_MD2017)
 #include "interfaces/batteryAndPowerManagement.h"
 #include "hardware/radioHardwareInterface.h"
 #endif
 
+const uint32_t POWEROFF_DURATION_MILLISECONDS = 500;
+
+#if defined(HAS_COLOURS)
+static void crtShutdownAnimation(void);
+#else
+static uint32_t initialEventTime;
 static void updateScreen(void);
 static void handleEvent(uiEvent_t *ev);
-static uint32_t initialEventTime;
-const uint32_t POWEROFF_DURATION_MILLISECONDS = 500;
+#endif
 
 menuStatus_t uiPowerOff(uiEvent_t *ev, bool isFirstRun)
 {
@@ -49,23 +56,103 @@ menuStatus_t uiPowerOff(uiEvent_t *ev, bool isFirstRun)
 		}
 #endif
 
+#if defined(HAS_COLOURS)
+		// Old-CRT-style collapse of whatever is currently on screen; replaces
+		// the "Power Off" / 73 message, then shuts down.
+		crtShutdownAnimation();
+		powerOffFinalStage(false, false);
+#else
 		updateScreen();
 		initialEventTime = ev->time;
+#endif
 	}
 	else
 	{
+#if !defined(HAS_COLOURS)
 		handleEvent(ev);
+#endif
 	}
 	return MENU_STATUS_SUCCESS;
 }
 
+#if defined(HAS_COLOURS)
+static void crtShutdownAnimation(void)
+{
+	const int W = DISPLAY_SIZE_X;
+	const int H = DISPLAY_SIZE_Y;
+	const int cx = W / 2;
+	const int cy = H / 2;
+	const int VSTEPS = 12;
+	const int HSTEPS = 12;
+	const uint16_t white = 0xFFFF;
+
+	displayRestorePrimaryScreenBuffer();
+
+	uint16_t *fb = displayGetPrimaryScreenBuffer();
+	uint16_t *snap = uiNotificationGetOffscreenBuffer();
+
+	// snapshot the screen as it is right now
+	memcpy(snap, fb, W * H * sizeof(uint16_t));
+
+	// Phase 1: squeeze the whole image vertically into a thin central band.
+	for (int step = 1; step <= VSTEPS; step++)
+	{
+		int bandH = H - ((H - 2) * step) / VSTEPS; // 128 -> 2
+		int top = cy - (bandH / 2);
+
+		memset(fb, 0, W * H * sizeof(uint16_t));
+
+		for (int dy = 0; dy < bandH; dy++)
+		{
+			int srcY = (dy * H) / bandH;
+
+			if (srcY >= H)
+			{
+				srcY = H - 1;
+			}
+			memcpy(&fb[(top + dy) * W], &snap[srcY * W], W * sizeof(uint16_t));
+		}
+
+		displayRender();
+		vTaskDelay((15 / portTICK_PERIOD_MS));
+	}
+
+	// Phase 2: the band becomes a bright line that collapses horizontally.
+	for (int step = 1; step <= HSTEPS; step++)
+	{
+		int lineW = W - ((W - 2) * step) / HSTEPS; // 160 -> 2
+		int left = cx - (lineW / 2);
+
+		memset(fb, 0, W * H * sizeof(uint16_t));
+
+		for (int dx = 0; dx < lineW; dx++)
+		{
+			fb[((cy - 1) * W) + (left + dx)] = white;
+			fb[(cy * W) + (left + dx)] = white;
+		}
+
+		displayRender();
+		vTaskDelay((15 / portTICK_PERIOD_MS));
+	}
+
+	// Phase 3: a brief central dot, then black.
+	memset(fb, 0, W * H * sizeof(uint16_t));
+	fb[((cy - 1) * W) + (cx - 1)] = white;
+	fb[((cy - 1) * W) + cx] = white;
+	fb[(cy * W) + (cx - 1)] = white;
+	fb[(cy * W) + cx] = white;
+	displayRender();
+	vTaskDelay((70 / portTICK_PERIOD_MS));
+
+	memset(fb, 0, W * H * sizeof(uint16_t));
+	displayRender();
+}
+#endif
+
+#if !defined(HAS_COLOURS)
 static void updateScreen(void)
 {
-#if defined(HAS_COLOURS)
-	bool dblHeight = settingsIsOptionBitSet(BIT_UI_USES_DOUBLE_HEIGHT);
-#else
 	const bool dblHeight = false;
-#endif
 	uint16_t fontHeight = (FONT_SIZE_3_HEIGHT * (dblHeight ? 2 : 1));
 
 	displayClearBuf();
@@ -104,3 +191,4 @@ static void handleEvent(uiEvent_t *ev)
 	}
 
 }
+#endif

MDUV380_firmware/application/source/user_interface/uiUtilities.c

@@ -1853,12 +1853,12 @@ void uiUtilityRenderQSOData(void)
 	displayThemeResetToDefault();
 }
 
-// Toggle the audio mute (speaker) state. The header shows a mute icon and the LED
-// flashes amber (see the main loop) while muted.
+// Toggle the audio mute (speaker) state. The flashing red LED (see the main
+// loop) indicates the muted state.
 void toggleAudioMute(void)
 {
 	audioAmpMute(!audioAmpIsMuted());
-	headerRowIsDirty = true; // refresh the header so the mute icon appears/clears
+	headerRowIsDirty = true;
 }
 
 void uiUtilityRenderHeader(bool isVFODualWatchScanning, bool isVFOSweepScanning, bool forceBatteryDisplay)
@@ -1878,8 +1878,6 @@ void uiUtilityRenderHeader(bool isVFODualWatchScanning, bool isVFOSweepScanning,
 	static uint32_t blinkTime = 0;
 	int radioMode = trxGetMode();
 	uint8_t powerLevel = trxGetPowerLevel();
-	// Muted either explicitly (SK2) or by the volume knob turned fully down (-99).
-	bool audioIsMuted = (audioAmpIsMuted() || (lastVolume == -99));
 	bool isPerChannelPower = (currentChannelData->libreDMR_Power != 0x00);
 	bool scanIsActive = (uiDataGlobal.Scan.active || uiDataGlobal.Scan.toneActive);
 	bool batteryIsLow = batteryIsLowWarning();
@@ -2000,7 +1998,7 @@ void uiUtilityRenderHeader(bool isVFODualWatchScanning, bool isVFOSweepScanning,
 				displayPrintCore(MODE_TEXT_X_OFFSET, DISPLAY_Y_POS_HEADER, buffer,
 						(((nonVolatileSettings.hotspotType != HOTSPOT_TYPE_OFF) && (uiDataGlobal.dmrDisabled == false)) ? FONT_SIZE_1_BOLD : FONT_SIZE_1), TEXT_ALIGN_LEFT, isInverted);
 
-				// (mute is shown by the header "M" indicator, not a strike-through)
+				// (mute is indicated by the flashing red LED, not a strike-through)
 			}
 
 			if ((aprsIsTransmittingOnSameQRG == false) && (monitorModeData.isEnabled == false) && (isVFOSweepScanning == false) && (isVFODualWatchScanning == false) &&
@@ -2068,7 +2066,7 @@ void uiUtilityRenderHeader(bool isVFODualWatchScanning, bool isVFOSweepScanning,
 
 						displayPrintCore(MODE_TEXT_X_OFFSET, DISPLAY_Y_POS_HEADER, (isVFODualWatchScanning ? "[DW]" : "DMR"), ((nonVolatileSettings.hotspotType != HOTSPOT_TYPE_OFF) ? FONT_SIZE_1_BOLD : FONT_SIZE_1), TEXT_ALIGN_LEFT, isInverted);
 
-						// (mute is shown by the header "M" indicator, not a strike-through)
+						// (mute is indicated by the flashing red LED, not a strike-through)
 					}
 
 					if (isVFODualWatchScanning == false)
@@ -2180,13 +2178,8 @@ void uiUtilityRenderHeader(bool isVFODualWatchScanning, bool isVFOSweepScanning,
 	bool displayTime = (settingsIsOptionBitSet(BIT_DISPLAY_TIME_IN_HEADER) && (forceBatteryDisplay == false) && (batteryIsLow == false));
 #endif
 #endif
-	// Mute indicator: bold "M" just left of the battery indicator.
-	if (audioIsMuted)
-	{
-		displayThemeApply(THEME_ITEM_FG_HEADER_TEXT, THEME_ITEM_BG_HEADER_TEXT);
-		displayPrintCore((DISPLAY_SIZE_X - 40), DISPLAY_Y_POS_HEADER, "M", FONT_SIZE_1_BOLD, TEXT_ALIGN_LEFT, false);
-		displayThemeResetToDefault();
-	}
+	// Mute state is indicated by the flashing red LED only; no header icon
+	// (it collided with the GPS text in the status bar).
 
 	// Display battery percentage/voltage
 	bool apoEnabled = (nonVolatileSettings.apo > 0);

README.md

@@ -15,9 +15,15 @@ tagged 🟢 **[FreeTRX]** (new/changed here) or ⚪ **[OpenGD77]** (inherited).
 
 ## Screenshots
 
-| Segmented S-meter & DMR call | 7-segment frequency display |
+| Segmented S-meter & DMR call | 7-segment frequency display | Main menu |
+| --- | --- | --- |
+| ![DMR channel showing the talkgroup, repeater name and the block S-meter](docs/images/screenshot-dmr.png) | ![VFO with the 7-segment frequency font](docs/images/screenshot-vfo.png) | ![Main menu with the Messages entry highlighted](docs/images/screenshot-menu.png) |
+
+| DMR text messages | Reading a received message |
 | --- | --- |
-| ![DMR call with the block S-meter](docs/images/screenshot-dmr.png) | ![VFO with the 7-segment frequency font](docs/images/screenshot-vfo.png) |
+| ![Messages menu: quick text, options, new message, inbox and sent](docs/images/screenshot-messages.png) | ![A received weather-report message from a BrandMeister service](docs/images/screenshot-message-view.png) |
+
+*Screens shown with the **Neon 80s** theme.*
 
 ## What's different from OpenGD77
 
@@ -25,8 +31,8 @@ FreeTRX keeps OpenGD77's core (DMR/FM, hotspot, CPS compatibility) and adds:
 
 - **Audio mute — new SK2 short-tap.** A short tap of **SK2** on the VFO/Channel
   screen toggles the speaker mute on and off. Turning the **volume knob fully
-  down** counts as muted too. While muted, a bold **"M"** appears in the status
-  bar (left of the battery) and the **red LED flashes** (0.5 s every 2 s). SK2's
+  down** counts as muted too. While muted, the **red LED flashes** (0.5 s every
+  2 s). SK2's
   existing roles are unchanged: held as a modifier, extra-long-press for
   monitor/squelch-off, and — while a DMR QSO is on screen — a tap still sets the
   TX talkgroup to the incoming one.
@@ -36,15 +42,18 @@ FreeTRX keeps OpenGD77's core (DMR/FM, hotspot, CPS compatibility) and adds:
 - **Screen dimming** — optionally dim the backlight to 100 / 50 / 30 / 15 % after
   inactivity (Auto backlight mode); new setting in Display Options.
 - **DMR text messages (SMS)** — send and receive text messages on the radio,
-  compatible with BrandMeister, hotspots and OEM radios. Compose on the keypad,
-  inbox/sent boxes, quick-text templates, delivery confirmation and an
-  incoming-message popup (see the manual for details).
+  compatible with BrandMeister, hotspots and OEM radios. Compose on the keypad
+  (or pick the recipient from your contacts), inbox/sent boxes, quick-text
+  templates, delivery confirmation and an incoming-message popup (see the manual
+  for details).
 - **Theme presets** — pick a colour theme on the radio: **Custom** (CPS-editable,
   default), **BASIC 80s** (Commodore 64), **Terminal** (green-on-black),
   **Vertexic** (amber/orange), **Red**, **Neon 80s** (multi-colour synthwave),
   or **Pride** (rainbow background). CPS edits only affect Custom.
 - **On-radio channel management** — create and delete channels directly from the
   Channel quick menu, no PC/CPS required (see [Managing channels](#managing-channels-on-the-radio)).
+- **CRT-style shut-off animation** — the current screen collapses to a line and
+  then a dot, like an old CRT switching off (replaces the "Power Off" message).
 - **DMR reliability fix** — resolves a hard-fault (freeze needing a battery pull)
   on the DMR path that affected recent self-built OpenGD77 revisions.
 

TOOLS.md

@@ -34,6 +34,10 @@ Output: `MDUV380_firmware/build/Open<platform>.bin` (the flashable, FM-only imag
 codec is merged in at flash time — see below). The build is always clean (`rm -rf build`),
 so building one platform overwrites the other's output.
 
+Each build finishes with a **memory-usage summary** — used, size and free bytes for the
+FLASH (code), RAM and CCMRAM regions — so the remaining headroom for new features is
+visible at a glance.
+
 ---
 
 ## 3. Flashing