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for #4154 use a binary gpio transformer to manage vext on heltec-tracker (saves power)

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This commit is contained in:
Kevin Hester
2024-08-28 09:59:42 -07:00
parent cdafa87cef
commit 8a9cc727a8
6 changed files with 51 additions and 16 deletions
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4
src/graphics/TFTDisplay.cpp
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@@ -25,6 +25,8 @@ extern SX1509 gpioExtender;
#define TFT_INVERT true
#endif
GpioPin *TFTDisplay::backlightEnable;
class LGFX : public lgfx::LGFX_Device
{
lgfx::Panel_ST7735S _panel_instance;
@@ -584,6 +586,7 @@ void TFTDisplay::sendCommand(uint8_t com)
// handle display on/off directly
switch (com) {
case DISPLAYON: {
// LOG_DEBUG("Display on\n");
backlightEnable->set(true);
#if ARCH_PORTDUINO
display(true);
@@ -607,6 +610,7 @@ void TFTDisplay::sendCommand(uint8_t com)
break;
}
case DISPLAYOFF: {
// LOG_DEBUG("Display off\n");
backlightEnable->set(false);
#if ARCH_PORTDUINO
tft->clear();