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Code Issues Releases Wiki Activity

Add support for waveshare 2.9in B V3 version (#5902)

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Co-authored-by: Jesse Hills <3060199+jesserockz@users.noreply.github.com>
This commit is contained in:
Fabian Pflug
2023-12-21 05:36:43 +01:00
committed by GitHub
parent 784dff7574
commit c305f61020
3 changed files with 93 additions and 0 deletions
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69
esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@@ -766,6 +766,75 @@ void WaveshareEPaper2P9InB::dump_config() {
LOG_UPDATE_INTERVAL(this);
}
// ========================================================
// 2.90in Type B (LUT from OTP)
// Datasheet:
// - https://files.waveshare.com/upload/a/af/2.9inch-e-paper-b-v3-specification.pdf
// ========================================================
void WaveshareEPaper2P9InBV3::initialize() {
// from https://github.com/waveshareteam/e-Paper/blob/master/Arduino/epd2in9b_V3/epd2in9b_V3.cpp
this->reset_();
// COMMAND POWER ON
this->command(0x04);
this->wait_until_idle_();
// COMMAND PANEL SETTING
this->command(0x00);
this->data(0x0F);
this->data(0x89);
// COMMAND RESOLUTION SETTING
this->command(0x61);
this->data(0x80);
this->data(0x01);
this->data(0x28);
// COMMAND VCOM AND DATA INTERVAL SETTING
this->command(0x50);
this->data(0x77);
}
void HOT WaveshareEPaper2P9InBV3::display() {
// COMMAND DATA START TRANSMISSION 1 (B/W data)
this->command(0x10);
delay(2);
this->start_data_();
this->write_array(this->buffer_, this->get_buffer_length_());
this->end_data_();
this->command(0x92);
delay(2);
// COMMAND DATA START TRANSMISSION 2 (RED data)
this->command(0x13);
delay(2);
this->start_data_();
for (size_t i = 0; i < this->get_buffer_length_(); i++)
this->write_byte(0xFF);
this->end_data_();
this->command(0x92);
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 WaveshareEPaper2P9InBV3::get_width_internal() { return 128; }
int WaveshareEPaper2P9InBV3::get_height_internal() { return 296; }
void WaveshareEPaper2P9InBV3::dump_config() {
LOG_DISPLAY("", "Waveshare E-Paper", this);
ESP_LOGCONFIG(TAG, " Model: 2.9in (B) V3");
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);
}
// ========================================================
// Good Display 2.9in black/white/grey
// Datasheet: