diff --git a/esphome/components/waveshare_epaper/display.py b/esphome/components/waveshare_epaper/display.py index 46da3f6fb4..747794b631 100644 --- a/esphome/components/waveshare_epaper/display.py +++ b/esphome/components/waveshare_epaper/display.py @@ -29,6 +29,7 @@ WaveshareEPaper2P7In = waveshare_epaper_ns.class_( WaveshareEPaper2P9InB = waveshare_epaper_ns.class_( "WaveshareEPaper2P9InB", WaveshareEPaper ) +GDEY029T94 = waveshare_epaper_ns.class_("GDEY029T94", WaveshareEPaper) WaveshareEPaper4P2In = waveshare_epaper_ns.class_( "WaveshareEPaper4P2In", WaveshareEPaper ) @@ -73,6 +74,7 @@ MODELS = { "2.13in-ttgo-b74": ("a", WaveshareEPaperTypeAModel.TTGO_EPAPER_2_13_IN_B74), "2.90in": ("a", WaveshareEPaperTypeAModel.WAVESHARE_EPAPER_2_9_IN), "2.90inv2": ("a", WaveshareEPaperTypeAModel.WAVESHARE_EPAPER_2_9_IN_V2), + "gdey029t94": ("c", GDEY029T94), "2.70in": ("b", WaveshareEPaper2P7In), "2.90in-b": ("b", WaveshareEPaper2P9InB), "4.20in": ("b", WaveshareEPaper4P2In), diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.cpp b/esphome/components/waveshare_epaper/waveshare_epaper.cpp index 5580674c34..8fd5c2e1f3 100644 --- a/esphome/components/waveshare_epaper/waveshare_epaper.cpp +++ b/esphome/components/waveshare_epaper/waveshare_epaper.cpp @@ -663,6 +663,90 @@ void WaveshareEPaper2P9InB::dump_config() { LOG_UPDATE_INTERVAL(this); } +// ======================================================== +// Good Display 2.9in black/white/grey +// Datasheet: +// - https://v4.cecdn.yun300.cn/100001_1909185148/SSD1680.pdf +// - https://github.com/adafruit/Adafruit_EPD/blob/master/src/panels/ThinkInk_290_Grayscale4_T5.h +// ======================================================== + +void GDEY029T94::initialize() { + // from https://www.waveshare.com/w/upload/b/bb/2.9inch-e-paper-b-specification.pdf, page 37 + // EPD hardware init start + this->reset_(); + + // COMMAND POWER SETTINGS + this->command(0x00); + this->data(0x03); + this->data(0x00); + this->data(0x2b); + this->data(0x2b); + this->data(0x03); /* for b/w */ + + // COMMAND BOOSTER SOFT START + this->command(0x06); + this->data(0x17); + this->data(0x17); + this->data(0x17); + + // COMMAND POWER ON + this->command(0x04); + this->wait_until_idle_(); + + // Not sure what this does but it's in the Adafruit EPD library + this->command(0xFF); + this->wait_until_idle_(); + + // COMMAND PANEL SETTING + this->command(0x00); + // 128x296 resolution: 10 + // LUT from OTP: 0 + // B/W mode (doesn't work): 1 + // scan-up: 1 + // shift-right: 1 + // booster ON: 1 + // no soft reset: 1 + this->data(0b10011111); + + // COMMAND RESOLUTION SETTING + // set to 128x296 by COMMAND PANEL SETTING + + // COMMAND VCOM AND DATA INTERVAL SETTING + // use defaults for white border and ESPHome image polarity + + // EPD hardware init end +} +void HOT GDEY029T94::display() { + // COMMAND DATA START TRANSMISSION 2 (B/W only) + this->command(0x13); + delay(2); + this->start_data_(); + for (size_t i = 0; i < this->get_buffer_length_(); i++) { + this->write_byte(this->buffer_[i]); + } + this->end_data_(); + delay(2); + + // COMMAND DISPLAY REFRESH + this->command(0x12); + delay(2); + this->wait_until_idle_(); + + // COMMAND POWER OFF + // NOTE: power off < deep sleep + this->command(0x02); +} +int GDEY029T94::get_width_internal() { return 128; } +int GDEY029T94::get_height_internal() { return 296; } +void GDEY029T94::dump_config() { + LOG_DISPLAY("", "Waveshare E-Paper (Good Display)", this); + ESP_LOGCONFIG(TAG, " Model: 2.9in Greyscale GDEY029T94"); + LOG_PIN(" Reset Pin: ", this->reset_pin_); + LOG_PIN(" DC Pin: ", this->dc_pin_); + LOG_PIN(" Busy Pin: ", this->busy_pin_); + LOG_UPDATE_INTERVAL(this); +} + static const uint8_t LUT_VCOM_DC_4_2[] = { 0x00, 0x17, 0x00, 0x00, 0x00, 0x02, 0x00, 0x17, 0x17, 0x00, 0x00, 0x02, 0x00, 0x0A, 0x01, 0x00, 0x00, 0x01, 0x00, 0x0E, 0x0E, 0x00, 0x00, 0x02, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.h b/esphome/components/waveshare_epaper/waveshare_epaper.h index e613899149..848b293c45 100644 --- a/esphome/components/waveshare_epaper/waveshare_epaper.h +++ b/esphome/components/waveshare_epaper/waveshare_epaper.h @@ -146,6 +146,26 @@ class WaveshareEPaper2P7In : public WaveshareEPaper { int get_height_internal() override; }; +class GDEY029T94 : public WaveshareEPaper { + public: + void initialize() override; + + void display() override; + + void dump_config() override; + + void deep_sleep() override { + // COMMAND DEEP SLEEP + this->command(0x07); + this->data(0xA5); // check byte + } + + protected: + int get_width_internal() override; + + int get_height_internal() override; +}; + class WaveshareEPaper2P9InB : public WaveshareEPaper { public: void initialize() override;