adding support for the ST7796 + creating a new variant of the T-beam (#6575)

* remove duplicate HAS_LP5562  introduced by #6422

* add ST7796

* changes to get display centered+lib update

* seperated from tbeam

* forgot the simple scan case

* lowered speeds to 1/4

* added SPI Speed to constructor+ cleaned up variant.h

* even slower speeds....

* add ST7796

* changes to get display centered+lib update

* seperated from tbeam

* forgot the simple scan case

* lowered speeds to 1/4

* added SPI Speed to constructor+ cleaned up variant.h

* even slower speeds....

* changed variant name to tbeam-displayshield

* modified variant.h and merged ini file+testing on lower spi frequency for the lora module, display shield pumps out EMI?

* try higher speeds + HSPI

* cleanup of redundant code

* refelct changes?

* trunk fmt

* testing touchscreen code

* further testing

* changed to sensorlib 0.3.1

* i broke it , dont know how to fix at the moment will investigate

* add -1 functionality for touch IRQ

* revert to working example?

* it works.... is pressed was not working properly

* working touchscreen but gestures not moving display

* swap XY+ mirror X

* cleanup + addition of  defines for on screen keyboard and canned message module

* removed debug lines, disabled bluetooth for now because of stack smashing protect failure

* reverted the revert #6640 + increased speed, bleutooth is stable now on reconnection cold booth etc , GPS is still not working though

* remove debug + add fixed baudrate for gps

* fmt

* revert NIMble

* changed display library to meshtastic org

* removed baudrate of 115200 and some commented out code

* Correct spelling

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* display speed x10

* resolve conflicts

* undo

* revert speed increase CPU

* add SCREEN_TRANSITION_FRAMERATE 5

* spi speed increase of the display

* using the original touchscreen implementation

* removal of H file line

* add USE_ST7796 to missing places

* removed is pressed + interrupt

* revert changes of settings.json

* update to screen.cpp

* test identification of CST226 and CST328

* Update src/configuration.h

typo

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* made changes to detection because it was completely wrong, CST226SE has 2 posible adresses

* add merge queue

* try vars

* kerning in yaml.

* update comment

* lint etc

* touching to check grandfathering

* explicit ignores

* add WIP for Unit C6L (#7433)

* add WIP for Unit C6L
* adapt to new config structure
* Add c6l BLE and screen support (#7991)
* Minor c6l fix
* Move out of PRIVATE_HW
---------
Co-authored-by: Austin <vidplace7@gmail.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>
Co-authored-by: Jason P <Xaositek@users.noreply.github.com>
Co-authored-by: Markus <Links2004@users.noreply.github.com>

* Update Adafruit BusIO to v1.17.3 (#8018)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Update actions/checkout action to v5 (#8020)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Update actions/setup-python action to v6 (#8023)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Upgrade trunk (#8025)

Co-authored-by: vidplace7 <1779290+vidplace7@users.noreply.github.com>

* Update actions/download-artifact action to v5 (#8021)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Fix init for InputEvent (#8015)

* Automated version bumps (#8028)

Co-authored-by: thebentern <9000580+thebentern@users.noreply.github.com>

* Allow Left / Right Events for selection and improve encoder responsives (#8016)

* Allow Left / Right Events for selection and improve encoder responsives

* add define for ROTARY_DELAY

* T-Lora Pager: Support LR1121 and SX1280 models (#7956)

* T-Lora Pager: Support LR1121 and SX1280 models

* Remove ifdefs

* (resubmission) Manual GitHub actions to allow building one target or arch (#7997)

* Reset the modified files

* Fix some changes

* Fix some changes

* Trunk. That is all.

---------

Co-authored-by: Tom <116762865+Nestpebble@users.noreply.github.com>

* BaseUI Show/Hide Frame Functionality (#7382)

* Rename System Frame (from Memory) in code base

* Create menu options to Show/Hide frames: Node Lists, Bearings, Position, LoRa, Clock and Favorites frames

* Move Region Picker into submenu

* Tweak wording for Send Position vs Node Info if the device has GPS

* Update actions/checkout action to v5 (#8031)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Update actions/download-artifact action to v5 (#8032)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Update actions/setup-python action to v6 (#8033)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Phone GPS display on Position Screen for BaseUI (#7875)

* Phone GPS display on Position Screen

This is a PR to show when a phone shares GPS location with the node so you can reliably know what coordinate is being shared with the Mesh.

* Merge pull request #8004 from compumike/compumike/debug-heap-add-free-heap-debugging-to-all-log-lines

When `DEBUG_HEAP` is defined, add free heap bytes to every log line in `RedirectablePrint::log_to_serial`

* Feature: Seamless Cross-Preset Communication via UDP Multicast Bridging (#7753)

* Added compatibility between nodes on different Presets through `Mesh via UDP`

* Optimize multicast handling and channel mapping

- FloodingRouter: remove redundant UDP-encrypted rebroadcast suppression.
- Router: guard multicast fallback with HAS_UDP_MULTICAST and map fallback-decoded packets
  to the local default channel via isDefaultChannel()
- UdpMulticastHandler: set transport_mechanism only after successful decode

* trunk fmt

* Move setting transport mechanism.

---------

Co-authored-by: GUVWAF <thijs@havinga.eu>

* Auto-favorite remote admin node

* Merge pull request #7873 from compumike/compumike/client-base-role

Add `CLIENT_BASE` role: `ROUTER` for favorites, `CLIENT` otherwise (for attic/roof nodes!)

* Fixes

* BaseUI Updates (#7787)

* Account for low resolution wide screen OLEDs

* Allow picking of Device Role and new Display Formatter for Device Role

* Add remainder of client roles to display formatter

* Don't update the role unless you pick a value

* Mascots are fun

* Fix warnings during compile time

* Improve some menus

* Mascots need to work everywhere

* Update Chirpy image

* Fix Trunk

* Update protobufs

* Add date to Clock screen

* Analog clocks love dates too

* Finalize date moves for analog clock

* Added Last Coordinate counter to Position screen (#7865)

Adding a counter to show the last time a GPS coordinate was detected to ensure the user is aware how long since the coordinate updated or to identify any errors.

* Fix

* Portduino config refactor (#7796)

* Start portduino_config refactor

* refactor GPIOs to new portduino_config

* More portduino_config work

* More conversion to portduino_config

* Finish portduino_config transition

* trunk

* yaml output work

* Simplify the GPIO config

* Trunk

* updated shebang to use a more standard path for bash (#7922)

Signed-off-by: Trenton VanderWert <trenton.vanderwert@gmail.com>

* Show GPS Date properly in drawCommonHeader (#7887)

* Commit good code that is sustainable

* Fix new build errors

* BaseUI Updates (#7787)

* Account for low resolution wide screen OLEDs

* Allow picking of Device Role and new Display Formatter for Device Role

* Add remainder of client roles to display formatter

* Don't update the role unless you pick a value

* Mascots are fun

* Fix warnings during compile time

* Improve some menus

* Mascots need to work everywhere

* Update Chirpy image

* Fix Trunk

* Update protobufs

* Add date to Clock screen

* Analog clocks love dates too

* Finalize date moves for analog clock

* Add formatting and menu picking for other GPS format options (#7974)

* Add back options for other GPS format options

* Rename variables and don't overlap elements

* Fix default value

* Should probably add a menu while I'm here!

* Shorten names just a bit to fit on screens

* Fix off by one

* Labels try to make things better

* Missed a label

* Update protobufs (#8038)

Co-authored-by: thebentern <9000580+thebentern@users.noreply.github.com>

* Add formatting and menu picking for other GPS format options (#7974)

* Add back options for other GPS format options

* Rename variables and don't overlap elements

* Fix default value

* Should probably add a menu while I'm here!

* Shorten names just a bit to fit on screens

* Fix off by one

* Labels try to make things better

* Missed a label

* Add a new GPS model CM121. (#7852)

* Add a new GPS model CM121.

* Add CM121 to Unicore.

* Trunk fixes, remove unneded NMEA lines

---------

Co-authored-by: Tom Fifield <tom@tomfifield.net>

* (resubmission) Manual GitHub actions to allow building one target or arch (#7997)

* Reset the modified files

* Fix some changes

* Fix some changes

* Trunk. That is all.

---------

Co-authored-by: Tom <116762865+Nestpebble@users.noreply.github.com>

* PPA: Enable Ubuntu 25.10 (questing) (#7940)

* Update Protobuf usage, add MLS, fix clock (#8041)

* Update protobufs (#8045)

Co-authored-by: thebentern <9000580+thebentern@users.noreply.github.com>

* Fix icon

* C6l fixes (#8047)

* fix build with HAS_TELEMETRY 0 (#8051)

* Make sure to ACK ACKs/replies if next-hop routing is used (#8052)

* Make sure to ACK ACKs/replies if next-hop routing is used
To stop their retransmissions; hop limit of 0 is enough

* Update src/mesh/ReliableRouter.cpp

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* move HTTP contentTypes to Flash - saves 768 Bytes of RAM (#8055)

* Use `lora.use_preset` config to get name (#8057)

* Update RadioLib to v7.3.0 (#8065)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Fix Rotary Encoder Button (#8001)

this fixes the Rotary Encoder Button, currenlty its not working at all.
Currently the action `ROTARY_ACTION_PRESSED` is only triggerd with a IRQ on RISING, which results in nothing since the function detects the "not longer" pressed button --> no action.

the `ROTARY_ACTION_PRESSED` implementation needs to be called on both edges (on press and release of the button)

changing the interupt setting to `CHANGE` fixes the problem.

* Add another seeed_xiao_nrf52840_kit build environment for I2C pinout (#8036)

* Update platformio.ini

* Remove some more extraneous lines

* Add heltec_v4 board. (#7845)

* add heltec_v4 board.

* Update variants/esp32s3/heltec_v4/platformio.ini

Co-authored-by: Austin <vidplace7@gmail.com>

* Limit the maximum output power.

* Trunk fixes

Fixes formatting to match meshtastic trunk linter.

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Apply suggestion from @Copilot

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Austin <vidplace7@gmail.com>
Co-authored-by: Tom Fifield <tom@tomfifield.net>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* Upgrade trunk (#8078)

Co-authored-by: vidplace7 <1779290+vidplace7@users.noreply.github.com>

* portduino bump to fix gpiod bug (#8083)

An earlier portduino causes problems with initializing gpiod lines. This pulls in the fix.

* Handle ext. notification module things even if not enabled (#8089)

* tlora-pager wake on button, and kb backlight toggling (#8090)

* Try-fix: Unstick that PhoneAPI state (#8091)

Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>

* Also pull a deviceID from esp32c6 devices (#8092)

* Remove line from BLE pin screen, to make pin readible on tiny screens

* Fix build errors (#8067)

* Heltec V4 is 16mb

* Clear lasttoradio on BLE disconnect (#8095)

* On disconnect, clear the lastToRadio buffer

* Move it, bucko!

* Revert "Fix build errors (#8067)"

This reverts commit d998f70b56.

* Automated version bumps (#8100)

Co-authored-by: thebentern <9000580+thebentern@users.noreply.github.com>

* Upgrade trunk (#8094)

Co-authored-by: vidplace7 <1779290+vidplace7@users.noreply.github.com>

* Update Adafruit BusIO to v1.17.4 (#8098)

Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>

* Add three expansion screens for heltec mesh solar. (#7995)

* Add three expansion screens for heltec mesh solar.

* delete whitespace

Update variants/nrf52840/heltec_mesh_solar/variant.h

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

* delete whitespace

Update variants/nrf52840/heltec_mesh_solar/platformio.ini

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>

---------

Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>

* Trunk

---------

Signed-off-by: Trenton VanderWert <trenton.vanderwert@gmail.com>
Co-authored-by: Thomas Göttgens <tgoettgens@gmail.com>
Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com>
Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
Co-authored-by: Dane Evans <dane@goneepic.com>
Co-authored-by: Austin <vidplace7@gmail.com>
Co-authored-by: Jonathan Bennett <jbennett@incomsystems.biz>
Co-authored-by: Jason P <Xaositek@users.noreply.github.com>
Co-authored-by: Markus <Links2004@users.noreply.github.com>
Co-authored-by: renovate[bot] <29139614+renovate[bot]@users.noreply.github.com>
Co-authored-by: github-actions[bot] <41898282+github-actions[bot]@users.noreply.github.com>
Co-authored-by: vidplace7 <1779290+vidplace7@users.noreply.github.com>
Co-authored-by: Markus <974709+Links2004@users.noreply.github.com>
Co-authored-by: thebentern <9000580+thebentern@users.noreply.github.com>
Co-authored-by: WillyJL <me@willyjl.dev>
Co-authored-by: Tom <116762865+NomDeTom@users.noreply.github.com>
Co-authored-by: Tom <116762865+Nestpebble@users.noreply.github.com>
Co-authored-by: Jason P <applewiz@mac.com>
Co-authored-by: HarukiToreda <116696711+HarukiToreda@users.noreply.github.com>
Co-authored-by: Michael <michael.overhorst@gmail.com>
Co-authored-by: GUVWAF <thijs@havinga.eu>
Co-authored-by: Trent V. <trenton.vanderwert@gmail.com>
Co-authored-by: Quency-D <55523105+Quency-D@users.noreply.github.com>
Co-authored-by: Tom Fifield <tom@tomfifield.net>
Co-authored-by: GUVWAF <78759985+GUVWAF@users.noreply.github.com>

src/configuration.h

@@ -250,8 +250,9 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // Touchscreen
 // -----------------------------------------------------------------------------
 #define FT6336U_ADDR 0x48
-#define CST328_ADDR 0x1A
+#define CST328_ADDR 0x1A // same address as CST226SE
 #define CHSC6X_ADDR 0x2E
+#define CST226SE_ADDR_ALT 0x5A
 
 // -----------------------------------------------------------------------------
 // RAK12035VB Soil Monitor (using RAK12023 up to 3 RAK12035 monitors can be connected)

src/detect/ScanI2C.h

@@ -85,7 +85,8 @@ class ScanI2C
         DRV2605,
         BH1750,
         DA217,
-        CHSC6X
+        CHSC6X,
+        CST226SE
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -499,7 +499,18 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 SCAN_SIMPLE_CASE(DFROBOT_RAIN_ADDR, DFROBOT_RAIN, "DFRobot Rain Gauge", (uint8_t)addr.address);
                 SCAN_SIMPLE_CASE(LTR390UV_ADDR, LTR390UV, "LTR390UV", (uint8_t)addr.address);
                 SCAN_SIMPLE_CASE(PCT2075_ADDR, PCT2075, "PCT2075", (uint8_t)addr.address);
-                SCAN_SIMPLE_CASE(CST328_ADDR, CST328, "CST328", (uint8_t)addr.address);
+            case CST328_ADDR:
+                // Do we have the CST328 or the CST226SE
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0xAB), 1);
+                if (registerValue == 0xA9) {
+                    type = CST226SE;
+                    logFoundDevice("CST226SE", (uint8_t)addr.address);
+                } else {
+                    type = CST328;
+                    logFoundDevice("CST328", (uint8_t)addr.address);
+                }
+                break;
+
                 SCAN_SIMPLE_CASE(CHSC6X_ADDR, CHSC6X, "CHSC6X", (uint8_t)addr.address);
             case LTR553ALS_ADDR:
                 registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x86), 1); // Part ID register
@@ -528,8 +539,12 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
 #endif
 
             case MLX90614_ADDR_DEF:
-                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x0e), 1);
+                // Do we have the MLX90614 or the MPR121KB or the CST226SE
-                if (registerValue == 0x5a) {
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x06), 1);
+                if (registerValue == 0xAB) {
+                    type = CST226SE;
+                    logFoundDevice("CST226SE", (uint8_t)addr.address);
+                } else if (getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x0e), 1) == 0x5a) {
                     type = MLX90614;
                     logFoundDevice("MLX90614", (uint8_t)addr.address);
                 } else {

src/graphics/Screen.cpp

@@ -324,7 +324,7 @@ static int8_t prevFrame = -1;
 // Combined dynamic node list frame cycling through LastHeard, HopSignal, and Distance modes
 // Uses a single frame and changes data every few seconds (E-Ink variant is separate)
 
-#if defined(ESP_PLATFORM) && defined(USE_ST7789)
+#if defined(ESP_PLATFORM) && (defined(USE_ST7789) || defined(USE_ST7796))
 SPIClass SPI1(HSPI);
 #endif
 
@@ -356,7 +356,18 @@ Screen::Screen(ScanI2C::DeviceAddress address, meshtastic_Config_DisplayConfig_O
 #else
     dispdev = new ST7789Spi(&SPI1, ST7789_RESET, ST7789_RS, ST7789_NSS, GEOMETRY_RAWMODE, TFT_WIDTH, TFT_HEIGHT);
 #endif
+#elif defined(USE_ST7796)
+#ifdef ESP_PLATFORM
+    dispdev = new ST7796Spi(&SPI1, ST7796_RESET, ST7796_RS, ST7796_NSS, GEOMETRY_RAWMODE, TFT_WIDTH, TFT_HEIGHT, ST7796_SDA,
+                            ST7796_MISO, ST7796_SCK, TFT_SPI_FREQUENCY);
+#else
+    dispdev = new ST7796Spi(&SPI1, ST7796_RESET, ST7796_RS, ST7796_NSS, GEOMETRY_RAWMODE, TFT_WIDTH, TFT_HEIGHT);
+#endif
+#if defined(USE_ST7789)
     static_cast<ST7789Spi *>(dispdev)->setRGB(TFT_MESH);
+#elif defined(USE_ST7796)
+    static_cast<ST7796Spi *>(dispdev)->setRGB(TFT_MESH);
+#endif
 #elif defined(USE_SSD1306)
     dispdev = new SSD1306Wire(address.address, -1, -1, geometry,
                               (address.port == ScanI2C::I2CPort::WIRE1) ? HW_I2C::I2C_TWO : HW_I2C::I2C_ONE);
@@ -474,6 +485,15 @@ void Screen::handleSetOn(bool on, FrameCallback einkScreensaver)
             pinMode(VTFT_LEDA, OUTPUT);
             digitalWrite(VTFT_LEDA, TFT_BACKLIGHT_ON);
 #endif
+#endif
+#ifdef USE_ST7796
+            ui->init();
+#ifdef ESP_PLATFORM
+            analogWrite(VTFT_LEDA, BRIGHTNESS_DEFAULT);
+#else
+            pinMode(VTFT_LEDA, OUTPUT);
+            digitalWrite(VTFT_LEDA, TFT_BACKLIGHT_ON);
+#endif
 #endif
             enabled = true;
             setInterval(0); // Draw ASAP
@@ -512,6 +532,21 @@ void Screen::handleSetOn(bool on, FrameCallback einkScreensaver)
             nrf_gpio_cfg_default(ST7789_NSS);
 #endif
 #endif
+#ifdef USE_ST7796
+            SPI1.end();
+#if defined(ARCH_ESP32)
+            pinMode(VTFT_LEDA, OUTPUT);
+            digitalWrite(VTFT_LEDA, LOW);
+            pinMode(ST7796_RESET, ANALOG);
+            pinMode(ST7796_RS, ANALOG);
+            pinMode(ST7796_NSS, ANALOG);
+#else
+            nrf_gpio_cfg_default(VTFT_LEDA);
+            nrf_gpio_cfg_default(ST7796_RESET);
+            nrf_gpio_cfg_default(ST7796_RS);
+            nrf_gpio_cfg_default(ST7796_NSS);
+#endif
+#endif
 
 #ifdef T_WATCH_S3
             PMU->disablePowerOutput(XPOWERS_ALDO2);
@@ -557,6 +592,10 @@ void Screen::setup()
 #if defined(MUZI_BASE)
     dispdev->delayPoweron = true;
 #endif
+#if defined(USE_ST7796) && defined(TFT_MESH)
+    // Custom text color, if defined in variant.h
+    static_cast<ST7796Spi *>(dispdev)->setRGB(TFT_MESH);
+#endif
 
     // === Initialize display and UI system ===
     ui->init();
@@ -620,6 +659,8 @@ void Screen::setup()
         static_cast<TFTDisplay *>(dispdev)->flipScreenVertically();
 #elif defined(USE_ST7789)
         static_cast<ST7789Spi *>(dispdev)->flipScreenVertically();
+#elif defined(USE_ST7796)
+        static_cast<ST7796Spi *>(dispdev)->mirrorScreen();
 #elif !defined(M5STACK_UNITC6L)
         dispdev->flipScreenVertically();
 #endif
@@ -652,7 +693,7 @@ void Screen::setup()
             touchScreenImpl1->init();
         }
     }
-#elif HAS_TOUCHSCREEN && !defined(USE_EINK)
+#elif HAS_TOUCHSCREEN && !defined(USE_EINK) && !HAS_CST226SE
     touchScreenImpl1 =
         new TouchScreenImpl1(dispdev->getWidth(), dispdev->getHeight(), static_cast<TFTDisplay *>(dispdev)->getTouch);
     touchScreenImpl1->init();

src/graphics/Screen.h

@@ -83,6 +83,8 @@ class Screen
 #include <ST7789Spi.h>
 #elif defined(USE_SPISSD1306)
 #include <SSD1306Spi.h>
+#elif defined(USE_ST7796)
+#include <ST7796Spi.h>
 #else
 // the SH1106/SSD1306 variant is auto-detected
 #include <AutoOLEDWire.h>

src/graphics/ScreenFonts.h

@@ -73,7 +73,7 @@
 #endif
 
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
-     defined(ST7789_CS) || defined(USE_ST7789) || defined(HX8357_CS) || defined(ILI9488_CS) || defined(ST7796_CS)) &&            \
+     defined(ST7789_CS) || defined(USE_ST7789) || defined(HX8357_CS) || defined(ILI9488_CS) || defined(ST7796_CS) || defined(USE_ST7796)) &&            \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
 // The screen is bigger so use bigger fonts
 #define FONT_SMALL FONT_MEDIUM_LOCAL // Height: 19

src/graphics/draw/DebugRenderer.cpp

@@ -97,6 +97,7 @@ void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16
                                           (storeForwardModule->heartbeatInterval * 1200))) { // no heartbeat, overlap a bit
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
      defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS) ||             \
+     defined(USE_ST7796) ||            \
      ARCH_PORTDUINO) &&                                                                                                                                                                                                    \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
             display->drawFastImage(x + SCREEN_WIDTH - 14 - display->getStringWidth(screen->ourId), y + 3 + FONT_HEIGHT_SMALL, 12,
@@ -109,7 +110,7 @@ void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16
 #endif
         } else {
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
-     defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS)) &&            \
+     defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS) || defined(USE_ST7796)) &&            \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
             display->drawFastImage(x + SCREEN_WIDTH - 18 - display->getStringWidth(screen->ourId), y + 3 + FONT_HEIGHT_SMALL, 16,
                                    8, imgSFL1);
@@ -125,6 +126,7 @@ void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16
         // TODO: Raspberry Pi supports more than just the one screen size
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
      defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS) ||             \
+     defined(USE_ST7796) ||            \
      ARCH_PORTDUINO) &&                                                                                                                                                                                                    \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
         display->drawFastImage(x + SCREEN_WIDTH - 14 - display->getStringWidth(screen->ourId), y + 3 + FONT_HEIGHT_SMALL, 12, 8,

src/graphics/draw/UIRenderer.cpp

@@ -257,7 +257,7 @@ void UIRenderer::drawNodes(OLEDDisplay *display, int16_t x, int16_t y, const mes
     }
 
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
-     defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS)) &&            \
+     defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(ST7796_CS) || defined(USE_ST7796)) &&            \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
 
     if (isHighResolution) {

src/graphics/images.h

@@ -27,8 +27,7 @@ const uint8_t bluetoothConnectedIcon[36] PROGMEM = {0xfe, 0x01, 0xff, 0x03, 0x03
                                                     0xfe, 0x31, 0x00, 0x30, 0x30, 0x30, 0x30, 0x30, 0xf0, 0x3f, 0xe0, 0x1f};
 
 #if (defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7701_CS) || defined(ST7735_CS) ||      \
-     defined(ST7789_CS) || defined(USE_ST7789) || defined(HX8357_CS) || defined(ILI9488_CS) || defined(ST7796_CS) ||             \
+     defined(ST7789_CS) || defined(USE_ST7789) || defined(HX8357_CS) || defined(ILI9488_CS) || defined(USE_ST7796) || defined(ST7796_CS) || ARCH_PORTDUINO) &&                \
-     ARCH_PORTDUINO) &&                                                                                                          \
     !defined(DISPLAY_FORCE_SMALL_FONTS)
 const uint8_t imgQuestionL1[] PROGMEM = {0xff, 0x01, 0x01, 0x32, 0x7b, 0x49, 0x49, 0x6f, 0x26, 0x01, 0x01, 0xff};
 const uint8_t imgQuestionL2[] PROGMEM = {0x0f, 0x08, 0x08, 0x08, 0x06, 0x0f, 0x0f, 0x06, 0x08, 0x08, 0x08, 0x0f};

src/main.cpp

@@ -877,7 +877,7 @@ void setup()
     if (config.display.displaymode != meshtastic_Config_DisplayConfig_DisplayMode_COLOR) {
 
 #if defined(ST7701_CS) || defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) ||       \
-    defined(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) ||              \
+    defined(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) || defined(USE_ST7796) ||              \
     defined(USE_SPISSD1306)
         screen = new graphics::Screen(screen_found, screen_model, screen_geometry);
 #elif defined(ARCH_PORTDUINO)
@@ -1154,7 +1154,7 @@ void setup()
 // Don't call screen setup until after nodedb is setup (because we need
 // the current region name)
 #if defined(ST7701_CS) || defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) ||       \
-    defined(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) ||              \
+    defined(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) || defined(USE_ST7796) ||              \
     defined(USE_SPISSD1306)
     if (screen)
         screen->setup();

src/mesh/NodeDB.cpp

@@ -664,7 +664,7 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
     config.bluetooth.fixed_pin = defaultBLEPin;
 
 #if defined(ST7735_CS) || defined(USE_EINK) || defined(ILI9341_DRIVER) || defined(ILI9342_DRIVER) || defined(ST7789_CS) ||       \
-    defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) || defined(USE_SPISSD1306)
+    defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(ST7796_CS) || defined(USE_SPISSD1306) || defined(USE_ST7796)
     bool hasScreen = true;
 #ifdef HELTEC_MESH_NODE_T114
     uint32_t st7789_id = get_st7789_id(ST7789_NSS, ST7789_SCK, ST7789_SDA, ST7789_RS, ST7789_RESET);

src/platform/extra_variants/tbeam_displayshield/variant.cpp

@@ -0,0 +1,43 @@
+#include "configuration.h"
+
+#ifdef HAS_CST226SE
+
+#include "TouchDrvCSTXXX.hpp"
+#include "input/TouchScreenImpl1.h"
+#include <Wire.h>
+
+TouchDrvCSTXXX tsPanel;
+static constexpr uint8_t PossibleAddresses[2] = {CST328_ADDR, CST226SE_ADDR_ALT};
+uint8_t i2cAddress = 0;
+
+bool readTouch(int16_t *x, int16_t *y)
+{
+    int16_t x_array[1], y_array[1];
+    uint8_t touched = tsPanel.getPoint(x_array, y_array, 1);
+    if (touched > 0) {
+        *y = x_array[0];
+        *x = (TFT_WIDTH - y_array[0]);
+        // Check bounds
+        if (*x < 0 || *x >= TFT_WIDTH || *y < 0 || *y >= TFT_HEIGHT) {
+            return false;
+        }
+        return true; // Valid touch detected
+    }
+    return false; // No valid touch data
+}
+
+void lateInitVariant()
+{
+    tsPanel.setTouchDrvModel(TouchDrv_CST226);
+    for (uint8_t addr : PossibleAddresses) {
+        if (tsPanel.begin(Wire, addr, I2C_SDA, I2C_SCL)) {
+            i2cAddress = addr;
+            LOG_DEBUG("CST226SE init OK at address 0x%02X", addr);
+            touchScreenImpl1 = new TouchScreenImpl1(TFT_WIDTH, TFT_HEIGHT, readTouch);
+            touchScreenImpl1->init();
+            return;
+        }
+    }
+    LOG_ERROR("CST226SE init failed at all known addresses");
+}
+#endif

variants/esp32/tbeam/platformio.ini

@@ -4,12 +4,22 @@ extends = esp32_base
 board = ttgo-t-beam
 board_level = pr
 board_check = true
-lib_deps =
+lib_deps = ${esp32_base.lib_deps}
-  ${esp32_base.lib_deps}
+build_flags = ${esp32_base.build_flags}
-build_flags = 
-  ${esp32_base.build_flags}
   -D TBEAM_V10
   -I variants/esp32/tbeam
   -DBOARD_HAS_PSRAM
   -mfix-esp32-psram-cache-issue
 upload_speed = 921600
+
+[env:tbeam-displayshield]
+extends = env:tbeam
+
+build_flags =
+  ${env:tbeam.build_flags}
+  -D USE_ST7796
+
+lib_deps =
+  ${env:tbeam.lib_deps}
+  https://github.com/meshtastic/st7796/archive/refs/tags/1.0.5.zip ; display addon
+  lewisxhe/SensorLib@0.3.1 ; touchscreen addon

variants/esp32/tbeam/variant.h

@@ -43,3 +43,34 @@
 #define GPS_RX_PIN 34
 #define GPS_TX_PIN 12
 // #define GPS_DEBUG
+
+// Used when the display shield is chosen
+#ifdef USE_ST7796
+
+#undef EXT_NOTIFY_OUT
+#undef LED_STATE_ON
+#undef LED_PIN
+
+#define HAS_CST226SE 1
+#define HAS_TOUCHSCREEN 1
+// #define TOUCH_IRQ 35 // broken in this version of the lib 0.3.1
+#ifndef TOUCH_IRQ
+#define TOUCH_IRQ -1
+#endif
+#define CANNED_MESSAGE_MODULE_ENABLE 1
+#define USE_VIRTUAL_KEYBOARD 1
+
+#define ST7796_NSS 25
+#define ST7796_RS 13  // DC
+#define ST7796_SDA 14 // MOSI
+#define ST7796_SCK 15
+#define ST7796_RESET 2
+#define ST7796_MISO -1
+#define ST7796_BUSY -1
+#define VTFT_LEDA 4
+#define TFT_SPI_FREQUENCY 60000000
+#define TFT_HEIGHT 222
+#define TFT_WIDTH 480
+#define BRIGHTNESS_DEFAULT 100        // Medium Low Brightness
+#define SCREEN_TRANSITION_FRAMERATE 5 // fps
+#endif