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Add M5Stack Core2 backlight dimming

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This commit is contained in:
fvanroie 2021-07-02 16:05:35 +02:00
parent 84f5685ca7
commit 8b28ecc8cf
2 changed files with 49 additions and 6 deletions
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45
src/dev/esp32/m5stackcore2.cpp
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@ -20,6 +20,7 @@ void M5StackCore2::init(void)
Axp.SetCHGCurrent(AXP192::kCHG_100mA); Axp.SetCHGCurrent(AXP192::kCHG_100mA);
Axp.SetLcdVoltage(2800); Axp.SetLcdVoltage(2800);
_backlight_power = true;
Axp.SetBusPowerMode(0); Axp.SetBusPowerMode(0);
Axp.SetCHGCurrent(AXP192::kCHG_190mA); Axp.SetCHGCurrent(AXP192::kCHG_190mA);
@ -44,16 +45,49 @@ void M5StackCore2::init(void)
Axp.SetLed(1); Axp.SetLed(1);
} }
void M5StackCore2::set_backlight_level(uint8_t level)
{
_backlight_level = level;
update_backlight();
}
uint8_t M5StackCore2::get_backlight_level()
{
return _backlight_level;
}
void M5StackCore2::set_backlight_power(bool power)
{
_backlight_power = power;
update_backlight();
}
bool M5StackCore2::get_backlight_power()
{
return _backlight_power;
}
void M5StackCore2::update_backlight()
{
if(_backlight_power) {
uint16_t voltage = map(_backlight_level, 0, 255, 2500, 3300);
Axp.SetLcdVoltage(voltage);
} else {
Axp.SetDCVoltage(2, 2200);
}
// Axp.SetDCDC3(_backlight_power); // LCD backlight
}
void M5StackCore2::get_sensors(JsonDocument& doc) void M5StackCore2::get_sensors(JsonDocument& doc)
{ {
Esp32Device::get_sensors(doc); Esp32Device::get_sensors(doc);
JsonObject sensor = doc.createNestedObject(F("AXP192")); JsonObject sensor = doc.createNestedObject(F("AXP192"));
sensor[F("BattVoltage")] = Axp.GetBatVoltage(); sensor[F("BattVoltage")] = Axp.GetBatVoltage();
sensor[F("BattPower")] = Axp.GetBatPower(); sensor[F("BattPower")] = Axp.GetBatPower();
// sensor[F("Batt%")] = Axp.getBattPercentage(); // sensor[F("Batt%")] = Axp.getBattPercentage();
sensor[F("BattChargeCurrent")] = Axp.GetBatChargeCurrent(); sensor[F("BattChargeCurrent")] = Axp.GetBatChargeCurrent();
sensor[F("Temperature")] = Axp.GetTempInAXP192(); sensor[F("Temperature")] = Axp.GetTempInAXP192();
sensor[F("Charging")] = Axp.isCharging(); sensor[F("Charging")] = Axp.isCharging();
} }
@ -62,4 +96,3 @@ void M5StackCore2::get_sensors(JsonDocument& doc)
dev::M5StackCore2 haspDevice; dev::M5StackCore2 haspDevice;
#endif #endif

10
src/dev/esp32/m5stackcore2.h
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@ -14,6 +14,16 @@ class M5StackCore2 : public Esp32Device {
public: public:
void init() override; void init() override;
void get_sensors(JsonDocument& doc); void get_sensors(JsonDocument& doc);
void set_backlight_level(uint8_t level);
uint8_t get_backlight_level();
void set_backlight_power(bool power);
bool get_backlight_power();
void update_backlight();
private:
uint8_t _backlight_level;
uint8_t _backlight_power;
}; };
} // namespace dev } // namespace dev