rnode: full-screen T-Deck UI with touch display toggle

2026-08-24 11:39:54 +00:00 · 2026-06-10 20:46:41 -06:00
parent e4818c607f
commit 1eff2f5797
3 changed files with 523 additions and 4 deletions
@@ -1746,6 +1746,10 @@ void cp_render_frame() {
 }
 #endif

+#if BOARD_MODEL == BOARD_TDECK
+  #include "TDeckUI.h"
+#endif
+
 bool epd_blanked = false;
 #if BOARD_MODEL == BOARD_TECHO
  void epd_blank(bool full_update = true) {
@@ -1763,6 +1767,9 @@ bool epd_blanked = false;

 void update_display(bool blank = false) {
  display_updating = true;
+  #if BOARD_MODEL == BOARD_TDECK
+    if (td_ui_ready) td_poll_touch();
+  #endif
  if (blank == true) {
    last_disp_update = millis()-disp_update_interval-1;
  } else {
@@ -1811,11 +1818,11 @@ void update_display(bool blank = false) {
      #elif BOARD_MODEL == BOARD_CARDPUTER_ADV
        m5canvas.fillSprite(SSD1306_BLACK);
        m5canvas.pushSprite(0, 0);
-      #elif BOARD_MODEL != BOARD_TDECK && BOARD_MODEL != BOARD_TECHO
+      #elif BOARD_MODEL == BOARD_TDECK
+        display.fillScreen(SSD1306_BLACK);
+      #elif BOARD_MODEL != BOARD_TECHO
        display.clearDisplay();
        display.display();
-      #else
-        // TODO: Clear screen
      #endif

      display_blank_frame_drawn = true;
@@ -1856,6 +1863,8 @@ void update_display(bool blank = false) {

        #if BOARD_MODEL == BOARD_CARDPUTER_ADV
          cp_render_frame();
+        #elif BOARD_MODEL == BOARD_TDECK
+          td_render_frame();
        #else
          update_stat_area();
          update_disp_area();
@@ -1871,6 +1880,8 @@ void update_display(bool blank = false) {
        }
      #elif BOARD_MODEL == BOARD_CARDPUTER_ADV
        m5canvas.pushSprite(0, 0);
+      #elif BOARD_MODEL == BOARD_TDECK
+        td_push_frame();
      #elif BOARD_MODEL != BOARD_TDECK
        display.display();
      #endif
@@ -35,7 +35,7 @@ CARDPUTER_ADV_EXTRA_FLAGS = \"-DBOARD_MODEL=0x43\" \"-DCARDPUTER_ADV_DEFAULT_FRE

 # T-Deck (Plus) dual-boot build — same staging pattern as the Cardputer Adv.
 # Defaults reuse the CARDPUTER_ADV_DEFAULT_* fallbacks in Utilities.h.
-TDECK_FQBN = esp32:esp32:esp32s3:CDCOnBoot=cdc,USBMode=hwcdc,FlashSize=16M,FlashMode=dio,PartitionScheme=no_ota
+TDECK_FQBN = esp32:esp32:esp32s3:CDCOnBoot=cdc,USBMode=hwcdc,FlashSize=16M,FlashMode=dio,PartitionScheme=no_ota,PSRAM=opi
 TDECK_SKETCH = build/tdeck_sketch/RNode_Firmware
 TDECK_BUILD = build/tdeck_build
 TDECK_OUTPUT = build/tdeck.esp32.esp32s3
@@ -0,0 +1,508 @@
+// Full-screen RNode UI for the LilyGo T-Deck (rsDeck dual-boot build).
+// Renders into a PSRAM-backed 320x240 canvas pushed to the ST7789, replacing
+// the generic 64x128 OLED layout. Included by Display.h for BOARD_TDECK only.
+// Touch (GT911) toggles the display for battery savings; buttons and BT
+// events wake it via the standard display_unblank() path.
+
+#ifndef TDECK_UI_H
+#define TDECK_UI_H
+
+void display_unblank();
+
+// Ratspeak-style dark palette (RGB565)
+#define TD_CLR_BG            0x0041
+#define TD_CLR_BG_PANEL      0x1082
+#define TD_CLR_BG_STATUSBAR  0x0861
+#define TD_CLR_BORDER        0x2945
+#define TD_CLR_TEXT_PRIMARY  0xE73C
+#define TD_CLR_TEXT_SECONDARY 0xAD75
+#define TD_CLR_TEXT_DIM      0x630C
+#define TD_CLR_ACCENT        0x4EBF
+#define TD_CLR_GREEN         0x070D
+#define TD_CLR_WARN          0xFD20
+#define TD_CLR_ERROR         0xF8A2
+
+#define TD_W 320
+#define TD_H 240
+#define TD_BAR_H 24
+#define TD_FOOT_Y 226
+#define TD_CONTENT_Y 30
+#define TD_LEFT_W 206
+#define TD_WF_X 212
+#define TD_WF_W 107
+#define TD_WF_Y 30
+#define TD_WF_H 192
+#define TD_WF_SIZE TD_WF_H
+
+static const uint16_t td_wf_palette[9] = {
+  0x0000, 0x0011, 0x001F, 0x07FF,
+  0x07E0, 0xFFE0, 0xFBE0, 0xF800, 0xFFFF
+};
+
+GFXcanvas16* td_canvas = nullptr;
+bool td_ui_ready = false;
+int td_waterfall[TD_WF_SIZE];
+int td_waterfall_head = 0;
+uint8_t td_charge_tick = 0;
+
+// --- GT911 touch (poll-only, tap toggles display power) ---
+#define TD_TOUCH_SDA 18
+#define TD_TOUCH_SCL 8
+uint8_t td_touch_addr = 0;
+bool td_touch_down = false;
+uint32_t td_last_touch_poll = 0;
+
+void td_touch_init() {
+  Wire.begin(TD_TOUCH_SDA, TD_TOUCH_SCL, 400000);
+  Wire.beginTransmission(0x5D);
+  if (Wire.endTransmission() == 0) { td_touch_addr = 0x5D; return; }
+  Wire.beginTransmission(0x14);
+  if (Wire.endTransmission() == 0) { td_touch_addr = 0x14; }
+}
+
+bool td_touch_read_down() {
+  if (td_touch_addr == 0) return false;
+  Wire.beginTransmission(td_touch_addr);
+  Wire.write(0x81); Wire.write(0x4E);
+  if (Wire.endTransmission(false) != 0) return false;
+  Wire.requestFrom(td_touch_addr, (uint8_t)1);
+  if (!Wire.available()) return false;
+  uint8_t status = Wire.read();
+  if (!(status & 0x80)) return false;
+  // Clear the buffer-ready flag so the controller keeps updating
+  Wire.beginTransmission(td_touch_addr);
+  Wire.write(0x81); Wire.write(0x4E); Wire.write(0x00);
+  Wire.endTransmission();
+  return (status & 0x0F) > 0;
+}
+
+void td_poll_touch() {
+  if (millis() - td_last_touch_poll < 50) return;
+  td_last_touch_poll = millis();
+
+  bool down = td_touch_read_down();
+  if (down && !td_touch_down) {
+    td_touch_down = true;
+  } else if (!down && td_touch_down) {
+    td_touch_down = false;
+    // Tap released: toggle display power
+    if (display_blanked) {
+      display_unblank();
+    } else {
+      last_unblank_event = millis() - display_blanking_timeout - 1;
+    }
+    last_disp_update = 0;
+  }
+}
+
+void td_ui_init() {
+  if (td_ui_ready) return;
+  display.setRotation(1);
+  display.fillScreen(TD_CLR_BG);
+  td_canvas = new GFXcanvas16(TD_W, TD_H);
+  for (int i = 0; i < TD_WF_SIZE; i++) td_waterfall[i] = 0;
+  td_touch_init();
+  display_blanking_enabled = true;
+  td_ui_ready = true;
+}
+
+void td_push_frame() {
+  if (td_canvas && td_canvas->getBuffer()) {
+    display.drawRGBBitmap(0, 0, td_canvas->getBuffer(), TD_W, TD_H);
+  }
+}
+
+uint16_t td_load_color(float percent) {
+  if (percent < 33.0f) return TD_CLR_GREEN;
+  if (percent < 66.0f) return 0xFBE0;
+  return 0xF800;
+}
+
+void td_draw_gradient_bar(int x, int y, int w, int h, float percent) {
+  if (percent > 100.0f) percent = 100.0f;
+  if (percent < 0.0f) percent = 0.0f;
+  int fill_w = (int)((percent / 100.0f) * (w - 2));
+  uint16_t fill_clr = TD_CLR_GREEN;
+  if (percent < 33.0f) fill_clr = 0xF800;
+  else if (percent < 66.0f) fill_clr = 0xFBE0;
+  td_canvas->drawRect(x, y, w, h, TD_CLR_BORDER);
+  if (fill_w > 0) td_canvas->fillRect(x + 1, y + 1, fill_w, h - 2, fill_clr);
+}
+
+void td_draw_usb_icon(int x, int y, uint16_t colour) {
+  td_canvas->fillRect(x + 3, y, 7, 10, colour);
+  td_canvas->fillRect(x + 4, y + 10, 5, 4, colour);
+  td_canvas->drawPixel(x + 1, y + 3, colour);
+  td_canvas->drawPixel(x + 11, y + 3, colour);
+}
+
+void td_draw_bt_icon(int x, int y, uint16_t colour) {
+  td_canvas->drawLine(x + 5, y, x + 5, y + 13, colour);
+  td_canvas->drawLine(x + 5, y, x + 9, y + 4, colour);
+  td_canvas->drawLine(x + 9, y + 4, x + 0, y + 10, colour);
+  td_canvas->drawLine(x + 0, y + 3, x + 9, y + 9, colour);
+  td_canvas->drawLine(x + 9, y + 9, x + 5, y + 13, colour);
+}
+
+void td_draw_lora_icon(int x, int y, uint16_t colour) {
+  td_canvas->fillCircle(x + 5, y + 7, 2, colour);
+  td_canvas->drawCircle(x + 5, y + 7, 5, colour);
+  td_canvas->drawCircle(x + 5, y + 7, 8, colour);
+}
+
+void td_draw_battery(int x, int y) {
+  if (!pmu_ready || !battery_ready || !battery_installed) {
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_TEXT_DIM);
+    td_canvas->setCursor(x, y + 1);
+    td_canvas->print("PWR");
+    return;
+  }
+
+  float bval = battery_percent;
+  bool known = !battery_indeterminate;
+  bool charging = known && (battery_state == BATTERY_STATE_CHARGING);
+  bool charged = known && (battery_state == BATTERY_STATE_CHARGED);
+  uint16_t fill_clr = TD_CLR_GREEN;
+
+  if (charged) { fill_clr = TD_CLR_ACCENT; bval = 100.0f; }
+  else if (charging) {
+    fill_clr = TD_CLR_ACCENT;
+    td_charge_tick += 3;
+    if (td_charge_tick > 100) td_charge_tick = 0;
+    bval = td_charge_tick;
+  } else if (bval <= 20.0f) fill_clr = 0xF800;
+  else if (bval <= 60.0f) fill_clr = 0xFBE0;
+
+  int bw = 22; int bh = 10;
+  td_canvas->drawRect(x, y, bw, bh, TD_CLR_TEXT_SECONDARY);
+  td_canvas->fillRect(x + bw, y + 3, 2, 4, TD_CLR_TEXT_SECONDARY);
+  int fill_w = (int)((bval / 100.0f) * (bw - 2));
+  if (fill_w > 0) td_canvas->fillRect(x + 1, y + 1, fill_w, bh - 2, fill_clr);
+
+  char bbuf[6];
+  float pct = battery_percent;
+  if (pct > 100.0f) pct = 100.0f;
+  if (pct < 0.0f) pct = 0.0f;
+  snprintf(bbuf, sizeof(bbuf), "%d%%", (int)(pct + 0.5f));
+  td_canvas->setTextSize(1);
+  td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+  td_canvas->setCursor(x + 28, y + 1);
+  td_canvas->print(bbuf);
+}
+
+void td_draw_statusbar() {
+  td_canvas->fillRect(0, 0, TD_W, TD_BAR_H, TD_CLR_BG_STATUSBAR);
+
+  td_draw_usb_icon(6, 5, (cable_state == CABLE_STATE_CONNECTED) ? TD_CLR_ACCENT : TD_CLR_TEXT_DIM);
+
+  uint16_t bt_clr = TD_CLR_TEXT_DIM;
+  if (bt_state == BT_STATE_ON) bt_clr = TD_CLR_ACCENT;
+  else if (bt_state == BT_STATE_PAIRING) bt_clr = TD_CLR_WARN;
+  else if (bt_state == BT_STATE_CONNECTED) bt_clr = TD_CLR_GREEN;
+  td_draw_bt_icon(26, 5, bt_clr);
+
+  td_draw_lora_icon(46, 5, radio_online ? TD_CLR_GREEN : TD_CLR_TEXT_DIM);
+
+  td_canvas->setTextSize(2);
+  td_canvas->setTextColor(TD_CLR_TEXT_PRIMARY);
+  td_canvas->setCursor(106, 5);
+  td_canvas->print("rsDeck RNode");
+
+  td_draw_battery(264, 7);
+  td_canvas->drawFastHLine(0, TD_BAR_H, TD_W, TD_CLR_BORDER);
+}
+
+void td_draw_waterfall() {
+  td_canvas->fillRect(TD_WF_X, TD_WF_Y, TD_WF_W, TD_WF_H + 2, TD_CLR_BG);
+  td_canvas->drawFastVLine(TD_WF_X - 2, TD_WF_Y, TD_WF_H, TD_CLR_BORDER);
+
+  if (!radio_online) {
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_TEXT_DIM);
+    td_canvas->setCursor(TD_WF_X + 18, TD_WF_Y + TD_WF_H / 2);
+    td_canvas->print("radio off");
+    return;
+  }
+
+  int rssi_val = current_rssi;
+  if (rssi_val < WF_RSSI_MIN) rssi_val = WF_RSSI_MIN;
+  if (rssi_val > WF_RSSI_MAX) rssi_val = WF_RSSI_MAX;
+  int rssi_norm = ((rssi_val - WF_RSSI_MIN) * 8) / WF_RSSI_SPAN;
+  if (rssi_norm > 7) rssi_norm = 7;
+  if (rssi_norm < 0) rssi_norm = 0;
+
+  if (display_tx) {
+    for (uint8_t i = 0; i < WF_TX_SIZE; i++) {
+      td_waterfall[td_waterfall_head] = -1;
+      td_waterfall_head = (td_waterfall_head + 1) % TD_WF_SIZE;
+    }
+    display_tx = false;
+  } else {
+    td_waterfall[td_waterfall_head] = interference_detected ? 8 : rssi_norm;
+    td_waterfall_head = (td_waterfall_head + 1) % TD_WF_SIZE;
+  }
+
+  for (int i = 0; i < TD_WF_SIZE; i++) {
+    int wi = (td_waterfall_head + i) % TD_WF_SIZE;
+    int ws = td_waterfall[wi];
+    int ypos = TD_WF_Y + i;
+    if (ws >= 0) {
+      int bar_w = (ws * (TD_WF_W - 4)) / 8;
+      if (bar_w > 0) td_canvas->drawFastHLine(TD_WF_X + 1, ypos, bar_w, td_wf_palette[ws]);
+    } else {
+      for (int tx = 0; tx < TD_WF_W - 4; tx += 2) {
+        td_canvas->drawPixel(TD_WF_X + 1 + tx, ypos, 0xFFFF);
+      }
+    }
+  }
+}
+
+void td_draw_idle_content() {
+  int x = 8;
+  int y = TD_CONTENT_Y + 4;
+
+  td_canvas->setTextSize(2);
+  td_canvas->setTextColor(TD_CLR_TEXT_PRIMARY);
+  td_canvas->setCursor(x, y);
+  if (bt_devname[0] != 0) td_canvas->print(bt_devname);
+  else td_canvas->print("RNode");
+  y += 22;
+
+  char idbuf[8];
+  snprintf(idbuf, sizeof(idbuf), "%02X%02X", (uint8_t)bt_dh[14], (uint8_t)bt_dh[15]);
+  td_canvas->setTextSize(5);
+  td_canvas->setTextColor(TD_CLR_ACCENT);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(idbuf);
+  y += 46;
+
+  uint32_t freq_hz = (radio_online && LoRa != nullptr) ? LoRa->getFrequency() : lora_freq;
+  char fbuf[20];
+  snprintf(fbuf, sizeof(fbuf), "%.3f MHz", (float)freq_hz / 1000000.0f);
+  td_canvas->setTextSize(2);
+  td_canvas->setTextColor(TD_CLR_TEXT_PRIMARY);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(fbuf);
+  y += 20;
+
+  uint32_t bw_hz = lora_bw;
+  if (bw_hz == 0 && radio_online && LoRa != nullptr) bw_hz = LoRa->getSignalBandwidth();
+  char bwstr[10];
+  if (bw_hz >= 1000) snprintf(bwstr, sizeof(bwstr), "%luK", (unsigned long)(bw_hz / 1000));
+  else snprintf(bwstr, sizeof(bwstr), "%lu", (unsigned long)bw_hz);
+  char modbuf[36];
+  int txp = (radio_online && LoRa != nullptr) ? (int)LoRa->getTxPower() : (int)lora_txp;
+  snprintf(modbuf, sizeof(modbuf), "SF%d %s CR4/%d %+ddBm", lora_sf, bwstr, lora_cr, txp);
+  td_canvas->setTextSize(1);
+  td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(modbuf);
+  y += 12;
+
+  char brbuf[24];
+  snprintf(brbuf, sizeof(brbuf), "%.2f Kbps", (float)lora_bitrate / 1000.0f);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(brbuf);
+  y += 14;
+
+  td_canvas->setCursor(x, y);
+  if (radio_online) {
+    td_canvas->setTextColor(TD_CLR_GREEN);
+    td_canvas->print("Radio Online");
+  } else if (!device_signatures_ok()) {
+    td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+    td_canvas->print("Provisioned, host config pending");
+  } else {
+    td_canvas->setTextColor(TD_CLR_TEXT_DIM);
+    td_canvas->print("Waiting for host");
+  }
+  y += 16;
+
+  td_canvas->drawFastHLine(x, y, TD_LEFT_W - 16, TD_CLR_BORDER);
+  y += 5;
+
+  float at_st = airtime * 100.0f;
+  float at_lt = longterm_airtime * 100.0f;
+  float cl_st = total_channel_util * 100.0f;
+  float cl_lt = longterm_channel_util * 100.0f;
+  char abuf[40];
+  td_canvas->setTextColor(td_load_color(at_st));
+  snprintf(abuf, sizeof(abuf), "Air  ST %.1f%%  LT %.1f%%", at_st, at_lt);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(abuf);
+  y += 12;
+  td_canvas->setTextColor(td_load_color(cl_st));
+  snprintf(abuf, sizeof(abuf), "Chan ST %.1f%%  LT %.1f%%", cl_st, cl_lt);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(abuf);
+  y += 16;
+
+  signed char t_snr = (signed char)last_snr_raw;
+  float snr = ((int)t_snr) * 0.25f;
+  char sigbuf[32];
+  snprintf(sigbuf, sizeof(sigbuf), "RSSI %d   SNR %.1f", last_rssi, snr);
+  td_canvas->setTextColor(TD_CLR_TEXT_PRIMARY);
+  td_canvas->setCursor(x, y);
+  td_canvas->print(sigbuf);
+  y += 12;
+
+  float rssi_pct = ((float)(last_rssi - S_RSSI_MIN) / S_RSSI_SPAN) * 100.0f;
+  td_draw_gradient_bar(x, y, TD_LEFT_W - 16, 10, rssi_pct);
+}
+
+void td_draw_pairing_screen() {
+  int x = 8;
+  int y = TD_CONTENT_Y + 10;
+
+  td_canvas->setTextSize(2);
+  td_canvas->setTextColor(TD_CLR_WARN);
+  td_canvas->setCursor(x, y);
+  td_canvas->print("BLE Pairing");
+  y += 30;
+
+  if (bt_ssp_pin != 0) {
+    char pin_str[7];
+    snprintf(pin_str, sizeof(pin_str), "%06d", (int)bt_ssp_pin);
+    int dx = x;
+    for (int i = 0; i < 6; i++) {
+      td_canvas->fillRoundRect(dx, y, 28, 44, 5, TD_CLR_BG_PANEL);
+      td_canvas->drawRoundRect(dx, y, 28, 44, 5, TD_CLR_ACCENT);
+      td_canvas->setTextSize(4);
+      td_canvas->setTextColor(TD_CLR_ACCENT);
+      td_canvas->setCursor(dx + 4, y + 8);
+      td_canvas->print(pin_str[i]);
+      dx += 33;
+    }
+    y += 58;
+  }
+
+  td_canvas->setTextSize(1);
+  td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+  td_canvas->setCursor(x, y);
+  td_canvas->print("Confirm this code on the connecting device.");
+}
+
+void td_draw_error_screen() {
+  int x = 8;
+  int y = TD_CONTENT_Y + 10;
+
+  td_canvas->setTextSize(2);
+  td_canvas->setTextColor(TD_CLR_ERROR);
+  td_canvas->setCursor(x, y);
+
+  if (!device_firmware_ok()) {
+    td_canvas->print("FW Corrupt");
+    y += 26;
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+    td_canvas->setCursor(x, y);
+    td_canvas->print("Reflash firmware to fix");
+  } else if (!modem_installed) {
+    td_canvas->print("No Radio");
+    y += 26;
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+    td_canvas->setCursor(x, y);
+    td_canvas->print("Check radio module");
+  } else {
+    td_canvas->print("Config Error");
+    y += 26;
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+    td_canvas->setCursor(x, y);
+    td_canvas->print("Run rnodeconf");
+  }
+}
+
+void td_draw_external_framebuffer() {
+  int scale = 3;
+  int ox = (TD_LEFT_W - 64 * scale) / 2;
+  int oy = TD_CONTENT_Y + 2;
+  td_canvas->drawRect(ox - 2, oy - 2, 64 * scale + 4, 64 * scale + 4, TD_CLR_BORDER);
+  for (int row = 0; row < 64; row++) {
+    for (int col = 0; col < 64; col++) {
+      int index = row * 8 + (col / 8);
+      uint8_t bitmask = 1 << (7 - (col % 8));
+      if (fb[index] & bitmask) {
+        td_canvas->fillRect(ox + col * scale, oy + row * scale, scale, scale, 0xFFFF);
+      }
+    }
+  }
+}
+
+void td_draw_boot_screen() {
+  td_canvas->fillScreen(TD_CLR_BG);
+  td_canvas->setTextSize(4);
+  td_canvas->setTextColor(TD_CLR_ACCENT);
+  td_canvas->setCursor(100, 80);
+  td_canvas->print("RNode");
+  td_canvas->setTextSize(1);
+  td_canvas->setTextColor(TD_CLR_TEXT_SECONDARY);
+  td_canvas->setCursor(122, 122);
+  td_canvas->print("rsDeck  T-Deck");
+
+  int bar_w = 200;
+  int bar_x = (TD_W - bar_w) / 2;
+  int bar_y = 150;
+  td_canvas->drawRect(bar_x, bar_y, bar_w, 8, TD_CLR_BORDER);
+  int pulse = (millis() / 15) % bar_w;
+  int pw = 50;
+  int p_start = pulse - pw; if (p_start < 0) p_start = 0;
+  int p_end = pulse; if (p_end > bar_w - 2) p_end = bar_w - 2;
+  if (p_end > p_start) {
+    td_canvas->fillRect(bar_x + 1 + p_start, bar_y + 1, p_end - p_start, 6, TD_CLR_ACCENT);
+  }
+}
+
+void td_draw_footer() {
+  td_canvas->drawFastHLine(0, TD_FOOT_Y, TD_W, TD_CLR_BORDER);
+  td_canvas->setTextSize(1);
+  td_canvas->setTextColor(TD_CLR_TEXT_DIM);
+  td_canvas->setCursor(8, TD_FOOT_Y + 4);
+  char vbuf[20];
+  snprintf(vbuf, sizeof(vbuf), "Firmware v%d.%02d", MAJ_VERS, MIN_VERS);
+  td_canvas->print(vbuf);
+  td_canvas->setCursor(170, TD_FOOT_Y + 4);
+  td_canvas->print("click: pair   touch: screen");
+}
+
+void td_render_frame() {
+  if (!td_ui_ready) td_ui_init();
+  if (!td_canvas || !td_canvas->getBuffer()) return;
+
+  if (!device_init_done) {
+    td_draw_boot_screen();
+    return;
+  }
+
+  if (firmware_update_mode) {
+    td_canvas->fillScreen(TD_CLR_BG);
+    td_canvas->setTextSize(2);
+    td_canvas->setTextColor(TD_CLR_WARN);
+    td_canvas->setCursor(40, 100);
+    td_canvas->print("Firmware Update");
+    td_canvas->setTextSize(1);
+    td_canvas->setTextColor(TD_CLR_ERROR);
+    td_canvas->setCursor(100, 130);
+    td_canvas->print("Do not power off");
+    return;
+  }
+
+  td_canvas->fillScreen(TD_CLR_BG);
+  td_draw_statusbar();
+  td_draw_waterfall();
+  td_draw_footer();
+
+  if (disp_ext_fb && bt_ssp_pin == 0) {
+    td_draw_external_framebuffer();
+  } else if (!hw_ready || radio_error || !device_firmware_ok()) {
+    td_draw_error_screen();
+  } else if (bt_state == BT_STATE_PAIRING && bt_ssp_pin != 0) {
+    td_draw_pairing_screen();
+  } else {
+    td_draw_idle_content();
+  }
+}
+
+#endif // TDECK_UI_H