Add the Heltec v4 expansion box. (#8539)

* Add the Heltec v4 expansion box.

* Change heltec-v4-oled to heltec-v4.

* Add touchscreen to I2C scanning.

* Add reset and busy pins to the ST7789.

* Ignore the touch interrupt pin and extend the sleep time to 1 hour.

* Remove the default sleep function.

---------

Co-authored-by: Ben Meadors <[email protected]>

Author: Quency-D

src/configuration.h

@@ -250,6 +250,7 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.
 // -----------------------------------------------------------------------------
 #define FT6336U_ADDR 0x48
 #define CST328_ADDR 0x1A
+#define CHSC6X_ADDR 0x2E
 
 // -----------------------------------------------------------------------------
 // RAK12035VB Soil Monitor (using RAK12023 up to 3 RAK12035 monitors can be connected)

src/detect/ScanI2C.h

@@ -82,7 +82,10 @@ class ScanI2C
         BHI260AP,
         BMM150,
         TSL2561,
-        DRV2605
+        DRV2605,
+        BH1750,
+        DA217,
+        CHSC6X
     } DeviceType;
 
     // typedef uint8_t DeviceAddress;

src/detect/ScanI2CTwoWire.cpp

@@ -485,7 +485,26 @@ void ScanI2CTwoWire::scanPort(I2CPort port, uint8_t *address, uint8_t asize)
                 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);
-                SCAN_SIMPLE_CASE(LTR553ALS_ADDR, LTR553ALS, "LTR553ALS", (uint8_t)addr.address);
+                SCAN_SIMPLE_CASE(CHSC6X_ADDR, CHSC6X, "CHSC6X", (uint8_t)addr.address);
+            case LTR553ALS_ADDR:
+                registerValue = getRegisterValue(ScanI2CTwoWire::RegisterLocation(addr, 0x86), 1); // Part ID register
+                if (registerValue == 0x92) {                                                       // LTR553ALS Part ID
+                    type = LTR553ALS;
+                    logFoundDevice("LTR553ALS", (uint8_t)addr.address);
+                } else {
+                    // Test BH1750 - send power on command
+                    i2cBus->beginTransmission(addr.address);
+                    i2cBus->write(0x01); // Power On command
+                    uint8_t bh1750_error = i2cBus->endTransmission();
+                    if (bh1750_error == 0) {
+                        type = BH1750;
+                        logFoundDevice("BH1750", (uint8_t)addr.address);
+                    } else {
+                        LOG_INFO("Device found at address 0x%x was not able to be enumerated", (uint8_t)addr.address);
+                    }
+                }
+                break;
+
                 SCAN_SIMPLE_CASE(BHI260AP_ADDR, BHI260AP, "BHI260AP", (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);

src/graphics/TFTDisplay.cpp

@@ -422,7 +422,57 @@ static LGFX *tft = nullptr;
 
 #elif defined(ST7789_CS)
 #include <LovyanGFX.hpp> // Graphics and font library for ST7735 driver chip
+#ifdef HELTEC_V4_TFT
+#include "chsc6x.h"
+#include "lgfx/v1/Touch.hpp"
+namespace lgfx
+{
+inline namespace v1
+{
+class TOUCH_CHSC6X : public ITouch
+{
+  public:
+    TOUCH_CHSC6X(void)
+    {
+        _cfg.i2c_addr = TOUCH_SLAVE_ADDRESS;
+        _cfg.x_min = 0;
+        _cfg.x_max = 240;
+        _cfg.y_min = 0;
+        _cfg.y_max = 320;
+    };
+
+    bool init(void) override
+    {
+        if (chsc6xTouch == nullptr) {
+            chsc6xTouch = new chsc6x(&Wire1, TOUCH_SDA_PIN, TOUCH_SCL_PIN, TOUCH_INT_PIN, TOUCH_RST_PIN);
+        }
+        chsc6xTouch->chsc6x_init();
+        return true;
+    };
+
+    uint_fast8_t getTouchRaw(touch_point_t *tp, uint_fast8_t count) override
+    {
+        uint16_t raw_x, raw_y;
+        if (chsc6xTouch->chsc6x_read_touch_info(&raw_x, &raw_y) == 0) {
+            tp[0].x = 320 - 1 - raw_y;
+            tp[0].y = 240 - 1 - raw_x;
+            tp[0].size = 1;
+            tp[0].id = 1;
+            return 1;
+        }
+        tp[0].size = 0;
+        return 0;
+    };
 
+    void wakeup(void) override{};
+    void sleep(void) override{};
+
+  private:
+    chsc6x *chsc6xTouch = nullptr;
+};
+} // namespace v1
+} // namespace lgfx
+#endif
 class LGFX : public lgfx::LGFX_Device
 {
     lgfx::Panel_ST7789 _panel_instance;
@@ -431,6 +481,8 @@ class LGFX : public lgfx::LGFX_Device
 #if HAS_TOUCHSCREEN
 #if defined(T_WATCH_S3) || defined(ELECROW)
     lgfx::Touch_FT5x06 _touch_instance;
+#elif defined(HELTEC_V4_TFT)
+    lgfx::TOUCH_CHSC6X _touch_instance;
 #else
     lgfx::Touch_GT911 _touch_instance;
 #endif
@@ -464,9 +516,9 @@ class LGFX : public lgfx::LGFX_Device
         {                                        // Set the display panel control.
             auto cfg = _panel_instance.config(); // Gets a structure for display panel settings.
 
-            cfg.pin_cs = ST7789_CS; // Pin number where CS is connected (-1 = disable)
-            cfg.pin_rst = -1;       // Pin number where RST is connected  (-1 = disable)
-            cfg.pin_busy = -1;      // Pin number where BUSY is connected (-1 = disable)
+            cfg.pin_cs = ST7789_CS;     // Pin number where CS is connected (-1 = disable)
+            cfg.pin_rst = ST7789_RESET; // Pin number where RST is connected  (-1 = disable)
+            cfg.pin_busy = ST7789_BUSY; // Pin number where BUSY is connected (-1 = disable)
 
             // The following setting values ​​are general initial values ​​for each panel, so please comment out any
             // unknown items and try them.

src/mesh/NodeDB.cpp

@@ -653,7 +653,7 @@ void NodeDB::installDefaultConfig(bool preserveKey = false)
     strncpy(config.network.ntp_server, "meshtastic.pool.ntp.org", 32);
 
 #if (defined(T_DECK) || defined(T_WATCH_S3) || defined(UNPHONE) || defined(PICOMPUTER_S3) || defined(SENSECAP_INDICATOR) ||      \
-     defined(ELECROW_PANEL)) &&                                                                                                  \
+     defined(ELECROW_PANEL) || defined(HELTEC_V4_TFT)) &&                                                                        \
     HAS_TFT
     // switch BT off by default; use TFT programming mode or hotkey to enable
     config.bluetooth.enabled = false;

variants/esp32s3/heltec_v4/pins_arduino.h

@@ -13,8 +13,8 @@ static const uint8_t LED_BUILTIN = 35;
 static const uint8_t TX = 43;
 static const uint8_t RX = 44;
 
-static const uint8_t SDA = 3;
-static const uint8_t SCL = 4;
+static const uint8_t SDA = 4;
+static const uint8_t SCL = 3;
 
 static const uint8_t SS = 8;
 static const uint8_t MOSI = 10;

variants/esp32s3/heltec_v4/platformio.ini

@@ -1,4 +1,4 @@
-[env:heltec-v4] 
+[heltec_v4_base] 
 extends = esp32s3_base
 board = heltec_v4
 board_check = true
@@ -7,3 +7,106 @@ build_flags =
   ${esp32s3_base.build_flags}
   -D HELTEC_V4
   -I variants/esp32s3/heltec_v4
+lib_deps = 
+  ${esp32s3_base.lib_deps}
+
+
+[env:heltec-v4]
+extends = heltec_v4_base
+build_flags = 
+  ${heltec_v4_base.build_flags}
+  -D HELTEC_V4_OLED
+  -D USE_SSD1306 ; Heltec_v4 has an SSD1315 display (compatible with SSD1306 driver)
+  -D LED_PIN=35
+  -D RESET_OLED=21
+  -D I2C_SDA=17
+  -D I2C_SCL=18
+  -D I2C_SDA1=4
+  -D I2C_SCL1=3
+lib_deps = 
+  ${heltec_v4_base.lib_deps}
+
+[env:heltec-v4-tft]
+extends = heltec_v4_base
+build_flags = 
+  ${heltec_v4_base.build_flags} ;-Os
+  -D HELTEC_V4_TFT
+  -D I2C_SDA=4
+  -D I2C_SCL=3
+  -D I2C_SDA1=47
+  -D I2C_SCL1=48
+  -D PIN_BUTTON2=35
+  -D PIN_BUZZER=6
+  -D USE_PIN_BUZZER=PIN_BUZZER
+  -D CONFIG_ARDUHAL_LOG_COLORS
+  -D RADIOLIB_DEBUG_SPI=0
+  -D RADIOLIB_DEBUG_PROTOCOL=0
+  -D RADIOLIB_DEBUG_BASIC=0
+  -D RADIOLIB_VERBOSE_ASSERT=0
+  -D RADIOLIB_SPI_PARANOID=0
+  -D CONFIG_DISABLE_HAL_LOCKS=1
+  -D INPUTDRIVER_BUTTON_TYPE=0
+  -D HAS_SCREEN=1
+  -D HAS_TFT=1
+  -D RAM_SIZE=1560
+  -D LV_LVGL_H_INCLUDE_SIMPLE
+  -D LV_CONF_INCLUDE_SIMPLE
+  -D LV_COMP_CONF_INCLUDE_SIMPLE
+  -D LV_USE_SYSMON=0
+  -D LV_USE_PROFILER=0
+  -D LV_USE_PERF_MONITOR=0
+  -D LV_USE_MEM_MONITOR=0
+  -D LV_USE_LOG=0
+  -D LV_BUILD_TEST=0
+  -D USE_LOG_DEBUG
+  -D LOG_DEBUG_INC=\"DebugConfiguration.h\"
+  -D USE_PACKET_API
+  -D LGFX_DRIVER=LGFX_HELTEC_V4_TFT
+  -D GFX_DRIVER_INC=\"graphics/LGFX/LGFX_HELTEC_V4_TFT.h\"
+  -D VIEW_320x240
+  -D MAP_FULL_REDRAW
+  -D DISPLAY_SIZE=320x240 ; landscape mode
+  -D LGFX_PIN_SCK=17
+  -D LGFX_PIN_MOSI=33
+  -D LGFX_PIN_DC=16
+  -D LGFX_PIN_CS=15
+  -D LGFX_PIN_BL=21
+  -D LGFX_PIN_RST=18
+  -D CUSTOM_TOUCH_DRIVER
+  -D TOUCH_SDA_PIN=I2C_SDA1
+  -D TOUCH_SCL_PIN=I2C_SCL1
+  -D TOUCH_INT_PIN=-1  ;45
+  -D TOUCH_RST_PIN=44
+;base UI
+  -D TFT_CS=LGFX_PIN_CS
+  -D ST7789_CS=TFT_CS
+  -D ST7789_RS=LGFX_PIN_DC
+  -D ST7789_SDA=LGFX_PIN_MOSI 
+  -D ST7789_SCK=LGFX_PIN_SCK
+  -D ST7789_RESET=LGFX_PIN_RST
+  -D ST7789_MISO=-1
+  -D ST7789_BUSY=-1
+  -D ST7789_BL=LGFX_PIN_BL
+  -D ST7789_SPI_HOST=SPI3_HOST
+  -D TFT_BL=ST7789_BL
+  -D SPI_FREQUENCY=40000000
+  -D SPI_READ_FREQUENCY=4000000
+  -D TFT_HEIGHT=320
+  -D TFT_WIDTH=240
+  -D TFT_OFFSET_X=0
+  -D TFT_OFFSET_Y=0
+  -D TFT_OFFSET_ROTATION=0
+  -D SCREEN_ROTATE
+  -D SCREEN_TRANSITION_FRAMERATE=5
+  -D BRIGHTNESS_DEFAULT=130 ; Medium Low Brightness
+  -D HAS_TOUCHSCREEN=1
+  -D TOUCH_I2C_PORT=0
+  -D TOUCH_SLAVE_ADDRESS=0x2E
+  -D SCREEN_TOUCH_INT=TOUCH_INT_PIN
+  -D SCREEN_TOUCH_RST=TOUCH_RST_PIN
+
+lib_deps = ${heltec_v4_base.lib_deps}
+  ; ${device-ui_base.lib_deps}
+  lovyan03/[email protected]
+  https://github.com/Quency-D/chsc6x/archive/5cbead829d6b432a8d621ed1aafd4eb474fd4f27.zip
+  https://github.com/Quency-D/device-ui/archive/7c9870b8016641190b059bdd90fe16c1012a39eb.zip

variants/esp32s3/heltec_v4/variant.h

@@ -1,11 +1,3 @@
-#define LED_PIN 35
-
-#define USE_SSD1306 // Heltec_v4 has an SSD1315 display (compatible with SSD1306 driver)
-
-#define RESET_OLED 21
-#define I2C_SDA 17 // I2C pins for this board
-#define I2C_SCL 18
-
 #define VEXT_ENABLE 36 // active low, powers the oled display and the lora antenna boost
 #define BUTTON_PIN 0