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brightness support for nextion (#1109)

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vxider 2020-07-13 02:12:28 +08:00 committed by GitHub
parent 1a47e4b524
commit 5d136a18af
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3 changed files with 7 additions and 1 deletions
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5
esphome/components/nextion/display.py
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@ -1,7 +1,7 @@
import esphome.codegen as cg import esphome.codegen as cg
import esphome.config_validation as cv import esphome.config_validation as cv
from esphome.components import display, uart from esphome.components import display, uart
from esphome.const import CONF_ID, CONF_LAMBDA from esphome.const import CONF_ID, CONF_LAMBDA, CONF_BRIGHTNESS
from . import nextion_ns from . import nextion_ns
DEPENDENCIES = ['uart'] DEPENDENCIES = ['uart']
@ -12,6 +12,7 @@ NextionRef = Nextion.operator('ref')
CONFIG_SCHEMA = display.BASIC_DISPLAY_SCHEMA.extend({ CONFIG_SCHEMA = display.BASIC_DISPLAY_SCHEMA.extend({
cv.GenerateID(): cv.declare_id(Nextion), cv.GenerateID(): cv.declare_id(Nextion),
cv.Optional(CONF_BRIGHTNESS, default=1.0): cv.percentage,
}).extend(cv.polling_component_schema('5s')).extend(uart.UART_DEVICE_SCHEMA) }).extend(cv.polling_component_schema('5s')).extend(uart.UART_DEVICE_SCHEMA)
@ -20,6 +21,8 @@ def to_code(config):
yield cg.register_component(var, config) yield cg.register_component(var, config)
yield uart.register_uart_device(var, config) yield uart.register_uart_device(var, config)
if CONF_BRIGHTNESS in config:
cg.add(var.set_brightness(config[CONF_BRIGHTNESS]))
if CONF_LAMBDA in config: if CONF_LAMBDA in config:
lambda_ = yield cg.process_lambda(config[CONF_LAMBDA], [(NextionRef, 'it')], lambda_ = yield cg.process_lambda(config[CONF_LAMBDA], [(NextionRef, 'it')],
return_type=cg.void) return_type=cg.void)

1
esphome/components/nextion/nextion.cpp
View file

@ -9,6 +9,7 @@ static const char *TAG = "nextion";
void Nextion::setup() { void Nextion::setup() {
this->send_command_no_ack(""); this->send_command_no_ack("");
this->send_command_printf("bkcmd=3"); this->send_command_printf("bkcmd=3");
this->set_backlight_brightness(static_cast<uint8_t>(brightness_ * 100));
this->goto_page("0"); this->goto_page("0");
} }
float Nextion::get_setup_priority() const { return setup_priority::PROCESSOR; } float Nextion::get_setup_priority() const { return setup_priority::PROCESSOR; }

2
esphome/components/nextion/nextion.h
View file

@ -365,6 +365,7 @@ class Nextion : public PollingComponent, public uart::UARTDevice {
// (In most use cases you won't need these) // (In most use cases you won't need these)
void register_touch_component(NextionTouchComponent *obj) { this->touch_.push_back(obj); } void register_touch_component(NextionTouchComponent *obj) { this->touch_.push_back(obj); }
void setup() override; void setup() override;
void set_brightness(float brightness) { this->brightness_ = brightness; }
float get_setup_priority() const override; float get_setup_priority() const override;
void update() override; void update() override;
void loop() override; void loop() override;
@ -392,6 +393,7 @@ class Nextion : public PollingComponent, public uart::UARTDevice {
std::vector<NextionTouchComponent *> touch_; std::vector<NextionTouchComponent *> touch_;
optional<nextion_writer_t> writer_; optional<nextion_writer_t> writer_;
bool wait_for_ack_{true}; bool wait_for_ack_{true};
float brightness_{1.0};
}; };
class NextionTouchComponent : public binary_sensor::BinarySensorInitiallyOff { class NextionTouchComponent : public binary_sensor::BinarySensorInitiallyOff {