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ili9488 esp32 dimmer

This commit is contained in:
gemu2015 2020-10-03 18:31:40 +02:00
parent 1cb4964a4e
commit 51bf7bcd7d
2 changed files with 36 additions and 4 deletions
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37
lib/JaretBurkett_ILI9488-gemu-1.0/ILI9488.cpp
View File

@ -20,6 +20,11 @@
// if using software spi this optimizes the code
#ifdef ESP32
#define ILI9488_DIMMER
#undef ESP32_PWM_CHANNEL
#define ESP32_PWM_CHANNEL 1
#endif
#define ILI9488_START start();
#define ILI9488_STOP stop();
@ -322,8 +327,13 @@ void ILI9488::DisplayInit(int8_t p,int8_t size,int8_t rot,int8_t font) {
void ILI9488::DisplayOnff(int8_t on) {
if (on) {
writecommand(ILI9488_DISPON); //Display on
if (_bp>=0) {
#ifdef ILI9488_DIMMER
ledcWrite(ESP32_PWM_CHANNEL,dimmer);
#else
digitalWrite(_bp,HIGH);
#endif
/*
writecommand(ILI9488_WRCTRLD);
writedata(0x0c);
@ -332,15 +342,30 @@ void ILI9488::DisplayOnff(int8_t on) {
}
} else {
writecommand(ILI9488_DISPOFF);
if (_bp>=0) {
#ifdef ILI9488_DIMMER
ledcWrite(ESP32_PWM_CHANNEL,0);
#else
digitalWrite(_bp,LOW);
#endif
}
//writecommand(ILI9488_WRCTRLD);
//writedata(0x04);
}
}
ILI9488_STOP
}
// dimmer 0-100
void ILI9488::dim(uint8_t dim) {
dimmer = dim;
if (dimmer>15) dimmer=15;
dimmer=((float)dimmer/15.0)*255.0;
#ifdef ESP32
ledcWrite(ESP32_PWM_CHANNEL,dimmer);
#endif
}
void ILI9488::begin(void) {
pinMode(_cs, OUTPUT);
@ -348,8 +373,14 @@ void ILI9488::begin(void) {
pinMode(_sclk, OUTPUT);
pinMode(_mosi, OUTPUT);
if (_bp>=0) {
pinMode(_bp, OUTPUT);
digitalWrite(_bp,HIGH);
#ifdef ILI9488_DIMMER
ledcSetup(ESP32_PWM_CHANNEL,4000,8);
ledcAttachPin(_bp,ESP32_PWM_CHANNEL);
ledcWrite(ESP32_PWM_CHANNEL,128);
#else
pinMode(_bp, OUTPUT);
digitalWrite(_bp,HIGH);
#endif
}
#ifndef ESP32

3
lib/JaretBurkett_ILI9488-gemu-1.0/ILI9488.h
View File

@ -157,10 +157,11 @@ class ILI9488 : public Renderer {
void write16BitColor(uint16_t color);
void commandList(uint8_t *addr);
void hw_spi_init();
void dim(uint8_t contrast);
private:
uint8_t tabcolor;
uint8_t dimmer;
void fastSPIwrite(uint8_t d,uint8_t dc);
void spi_lcd_mode_init(void);
void start(void);