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Add the Heltec v4 expansion box. (#8539)

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* 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 <benmmeadors@gmail.com>
This commit is contained in:
Quency-D
2025-11-08 20:47:24 +08:00
committed by Ben Meadors
parent b86827967e
commit 602945f66b
8 changed files with 187 additions and 17 deletions
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58
src/graphics/TFTDisplay.cpp
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@@ -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.