diff --git a/src/configuration.h b/src/configuration.h
index cddc7ba7a..2efcf73a2 100644
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -230,6 +230,8 @@ along with this program. If not, see .
// Touchscreen
// -----------------------------------------------------------------------------
#define FT6336U_ADDR 0x48
+#define CST226SE_ADDR 0x1A
+#define CST226SE_ADDR_ALT 0x5A
// -----------------------------------------------------------------------------
// RAK12035VB Soil Monitor (using RAK12023 up to 3 RAK12035 monitors can be connected)
diff --git a/src/detect/ScanI2C.h b/src/detect/ScanI2C.h
index dd290db98..a46fb6476 100644
--- a/src/detect/ScanI2C.h
+++ b/src/detect/ScanI2C.h
@@ -75,6 +75,7 @@ class ScanI2C
TCA8418KB,
PCT2075,
BMM150,
+ CST226SE,
} DeviceType;
// typedef uint8_t DeviceAddress;
diff --git a/src/detect/ScanI2CTwoWire.cpp b/src/detect/ScanI2CTwoWire.cpp
index 9e9441123..e3bfcc9a6 100644
--- a/src/detect/ScanI2CTwoWire.cpp
+++ b/src/detect/ScanI2CTwoWire.cpp
@@ -449,13 +449,18 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
SCAN_SIMPLE_CASE(PCT2075_ADDR, PCT2075, "PCT2075", (uint8_t)addr.address);
SCAN_SIMPLE_CASE(SCD4X_ADDR, SCD4X, "SCD4X", (uint8_t)addr.address);
SCAN_SIMPLE_CASE(BMM150_ADDR, BMM150, "BMM150", (uint8_t)addr.address);
+ SCAN_SIMPLE_CASE(CST226SE_ADDR, CST226SE, "CST226SE", (uint8_t)addr.address);
#ifdef HAS_TPS65233
SCAN_SIMPLE_CASE(TPS65233_ADDR, TPS65233, "TPS65233", (uint8_t)addr.address);
#endif
case MLX90614_ADDR_DEF:
- registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x0e), 1);
- if (registerValue == 0x5a) {
+ // Do we have the MLX90614 or the MPR121KB or the CST226SE
+ 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 {
diff --git a/src/graphics/Screen.cpp b/src/graphics/Screen.cpp
index 87d394d69..aa0c352b9 100644
--- a/src/graphics/Screen.cpp
+++ b/src/graphics/Screen.cpp
@@ -281,7 +281,7 @@ 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
@@ -313,7 +313,18 @@ 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(dispdev)->setRGB(TFT_MESH);
+#elif defined(USE_ST7796)
+ static_cast(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);
@@ -410,6 +421,15 @@ 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
@@ -442,6 +462,21 @@ 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);
@@ -484,6 +519,10 @@ void Screen::setup()
// Apply custom RGB color (e.g. Heltec T114/T190)
static_cast(dispdev)->setRGB(TFT_MESH);
#endif
+#if defined(USE_ST7796) && defined(TFT_MESH)
+ // Custom text color, if defined in variant.h
+ static_cast(dispdev)->setRGB(TFT_MESH);
+#endif
// === Initialize display and UI system ===
ui->init();
@@ -547,6 +586,8 @@ void Screen::setup()
static_cast(dispdev)->flipScreenVertically();
#elif defined(USE_ST7789)
static_cast(dispdev)->flipScreenVertically();
+#elif defined(USE_ST7796)
+ static_cast(dispdev)->mirrorScreen();
#else
dispdev->flipScreenVertically();
#endif
@@ -579,7 +620,7 @@ void Screen::setup()
touchScreenImpl1->init();
}
}
-#elif HAS_TOUCHSCREEN
+#elif HAS_TOUCHSCREEN && !HAS_CST226SE
touchScreenImpl1 =
new TouchScreenImpl1(dispdev->getWidth(), dispdev->getHeight(), static_cast(dispdev)->getTouch);
touchScreenImpl1->init();
diff --git a/src/graphics/Screen.h b/src/graphics/Screen.h
index 265900131..4eb0c07d4 100644
--- a/src/graphics/Screen.h
+++ b/src/graphics/Screen.h
@@ -81,6 +81,8 @@ class Screen
#include
#elif defined(USE_ST7789)
#include
+#elif defined(USE_ST7796)
+#include
#else
// the SH1106/SSD1306 variant is auto-detected
#include
diff --git a/src/graphics/ScreenFonts.h b/src/graphics/ScreenFonts.h
index 3373a47a7..a91efdba1 100644
--- a/src/graphics/ScreenFonts.h
+++ b/src/graphics/ScreenFonts.h
@@ -65,7 +65,7 @@
#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(ST7789_CS) || defined(USE_ST7789) || defined(USE_ST7796) || defined(HX8357_CS) || defined(ILI9488_CS)) && \
!defined(DISPLAY_FORCE_SMALL_FONTS)
// The screen is bigger so use bigger fonts
#define FONT_SMALL FONT_MEDIUM_LOCAL // Height: 19
diff --git a/src/graphics/draw/DebugRenderer.cpp b/src/graphics/draw/DebugRenderer.cpp
index 5420d1b4b..bbb808e69 100644
--- a/src/graphics/draw/DebugRenderer.cpp
+++ b/src/graphics/draw/DebugRenderer.cpp
@@ -94,7 +94,8 @@ void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16
if (!Throttle::isWithinTimespanMs(storeForwardModule->lastHeartbeat,
(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) || ARCH_PORTDUINO) && \
+ defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_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, imgQuestionL1);
@@ -106,7 +107,7 @@ 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(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_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);
@@ -121,7 +122,8 @@ void drawFrame(OLEDDisplay *display, OLEDDisplayUiState *state, int16_t x, int16
} else {
// 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) || ARCH_PORTDUINO) && \
+ defined(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_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,
imgInfoL1);
diff --git a/src/graphics/draw/UIRenderer.cpp b/src/graphics/draw/UIRenderer.cpp
index 71d92616f..704e75260 100644
--- a/src/graphics/draw/UIRenderer.cpp
+++ b/src/graphics/draw/UIRenderer.cpp
@@ -194,7 +194,7 @@ 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(ST7789_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(HX8357_CS) || defined(USE_ST7796)) && \
!defined(DISPLAY_FORCE_SMALL_FONTS)
if (isHighResolution) {
diff --git a/src/graphics/images.h b/src/graphics/images.h
index beef3a1b2..711e0093d 100644
--- a/src/graphics/images.h
+++ b/src/graphics/images.h
@@ -27,7 +27,8 @@ 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) || ARCH_PORTDUINO) && \
+ defined(ST7789_CS) || defined(USE_ST7789) || defined(USE_ST7796) || defined(HX8357_CS) || defined(ILI9488_CS) || \
+ 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};
diff --git a/src/main.cpp b/src/main.cpp
index 2e2adfd46..824439589 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -817,7 +817,7 @@ 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(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(USE_ST7796)
screen = new graphics::Screen(screen_found, screen_model, screen_geometry);
#elif defined(ARCH_PORTDUINO)
if ((screen_found.port != ScanI2C::I2CPort::NO_I2C || settingsMap[displayPanel]) &&
@@ -1074,7 +1074,7 @@ 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(ST7789_CS) || defined(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || defined(USE_ST7796)
if (screen)
screen->setup();
#elif defined(ARCH_PORTDUINO)
diff --git a/src/mesh/NodeDB.cpp b/src/mesh/NodeDB.cpp
index 3c19971e6..38cb98ece 100644
--- a/src/mesh/NodeDB.cpp
+++ b/src/mesh/NodeDB.cpp
@@ -671,7 +671,7 @@ 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(HX8357_CS) || defined(USE_ST7789) || defined(ILI9488_CS) || 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);
diff --git a/src/platform/extra_variants/tbeam_displayshield/variant.cpp b/src/platform/extra_variants/tbeam_displayshield/variant.cpp
new file mode 100644
index 000000000..ebfb9b87b
--- /dev/null
+++ b/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
+
+TouchDrvCSTXXX tsPanel;
+static constexpr uint8_t PossibleAddresses[2] = {CST226SE_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
diff --git a/variants/esp32/tbeam/platformio.ini b/variants/esp32/tbeam/platformio.ini
index 084a981da..e9fbdb611 100644
--- a/variants/esp32/tbeam/platformio.ini
+++ b/variants/esp32/tbeam/platformio.ini
@@ -3,13 +3,23 @@
extends = esp32_base
board = ttgo-t-beam
board_check = true
-lib_deps =
- ${esp32_base.lib_deps}
-build_flags =
- ${esp32_base.build_flags}
+lib_deps = ${esp32_base.lib_deps}
+build_flags = ${esp32_base.build_flags}
-D TBEAM_V10
-I variants/esp32/tbeam
- -DGPS_POWER_TOGGLE ; comment this line to disable double press function on the user button to turn off gps entirely.
- -DBOARD_HAS_PSRAM
+ -D GPS_POWER_TOGGLE ; comment this line to disable double press function on the user button to turn off gps entirely.
+ -D BOARD_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
\ No newline at end of file
diff --git a/variants/esp32/tbeam/variant.h b/variants/esp32/tbeam/variant.h
index 5b521a2de..2d144a888 100644
--- a/variants/esp32/tbeam/variant.h
+++ b/variants/esp32/tbeam/variant.h
@@ -42,4 +42,35 @@
#define GPS_UBLOX
#define GPS_RX_PIN 34
#define GPS_TX_PIN 12
-// #define GPS_DEBUG
\ No newline at end of file
+// #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
\ No newline at end of file