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Waveshare e-ink 2IN9_V2 - fix full and partial update based on vendor SDK and examples (#5481)

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Co-authored-by: Clyde Stubbs <2366188+clydebarrow@users.noreply.github.com>
This commit is contained in:
Darek 2024-02-27 21:29:56 +01:00 committed by GitHub
parent f73518dbeb
commit 37138d4f28
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3 changed files with 247 additions and 0 deletions
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4
esphome/components/waveshare_epaper/display.py
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@ -45,6 +45,9 @@ WaveshareEPaper2P9InB = waveshare_epaper_ns.class_(
WaveshareEPaper2P9InBV3 = waveshare_epaper_ns.class_(
"WaveshareEPaper2P9InBV3", WaveshareEPaper
)
WaveshareEPaper2P9InV2R2 = waveshare_epaper_ns.class_(
"WaveshareEPaper2P9InV2R2", WaveshareEPaper
)
GDEY029T94 = waveshare_epaper_ns.class_("GDEY029T94", WaveshareEPaper)
WaveshareEPaper4P2In = waveshare_epaper_ns.class_(
"WaveshareEPaper4P2In", WaveshareEPaper
@ -107,6 +110,7 @@ MODELS = {
"2.70inv2": ("b", WaveshareEPaper2P7InV2),
"2.90in-b": ("b", WaveshareEPaper2P9InB),
"2.90in-bv3": ("b", WaveshareEPaper2P9InBV3),
"2.90inv2-r2": ("c", WaveshareEPaper2P9InV2R2),
"4.20in": ("b", WaveshareEPaper4P2In),
"4.20in-bv2": ("b", WaveshareEPaper4P2InBV2),
"5.83in": ("b", WaveshareEPaper5P8In),

213
esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@ -83,6 +83,33 @@ static const uint8_t PARTIAL_UPDATE_LUT_TTGO_B1[LUT_SIZE_TTGO_B1] = {
0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x0F, 0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
// clang-format off
// Disable formatting to preserve the same look as in Waveshare examples
static const uint8_t PARTIAL_UPD_2IN9_LUT_SIZE = 159;
static const uint8_t PARTIAL_UPD_2IN9_LUT[PARTIAL_UPD_2IN9_LUT_SIZE] =
{
0x00, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x80, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x40, 0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x0A, 0x00, 0x00, 0x00, 0x00, 0x00, 0x01,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x01, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x22, 0x22, 0x22, 0x22, 0x22, 0x22, 0x00, 0x00, 0x00,
0x22, 0x17, 0x41, 0xB0, 0x32, 0x36,
};
// clang-format on
void WaveshareEPaperBase::setup_pins_() {
this->init_internal_(this->get_buffer_length_());
this->dc_pin_->setup(); // OUTPUT
@ -1118,6 +1145,192 @@ void WaveshareEPaper2P9InBV3::dump_config() {
LOG_UPDATE_INTERVAL(this);
}
// ========================================================
// 2.90in v2 rev2
// based on SDK and examples in ZIP file from:
// https://www.waveshare.com/pico-epaper-2.9.htm
// ========================================================
void WaveshareEPaper2P9InV2R2::initialize() {
this->reset_();
this->wait_until_idle_();
this->command(0x12); // SWRESET
this->wait_until_idle_();
this->command(0x01);
this->data(0x27);
this->data(0x01);
this->data(0x00);
this->command(0x11);
this->data(0x03);
// SetWindows(0, 0, w, h)
this->command(0x44);
this->data(0x00);
this->data(((this->get_width_controller() - 1) >> 3) & 0xFF);
this->command(0x45);
this->data(0x00);
this->data(0x00);
this->data((this->get_height_internal() - 1) & 0xFF);
this->data(((this->get_height_internal() - 1) >> 8) & 0xFF);
this->command(0x21);
this->data(0x00);
this->data(0x80);
// SetCursor(0, 0)
this->command(0x4E);
this->data(0x00);
this->command(0x4f);
this->data(0x00);
this->data(0x00);
this->wait_until_idle_();
}
WaveshareEPaper2P9InV2R2::WaveshareEPaper2P9InV2R2() { this->reset_duration_ = 10; }
void WaveshareEPaper2P9InV2R2::reset_() {
if (this->reset_pin_ != nullptr) {
this->reset_pin_->digital_write(false);
delay(reset_duration_); // NOLINT
this->reset_pin_->digital_write(true);
delay(reset_duration_); // NOLINT
}
}
void WaveshareEPaper2P9InV2R2::display() {
if (!this->wait_until_idle_()) {
this->status_set_warning();
ESP_LOGE(TAG, "fail idle 1");
return;
}
if (this->full_update_every_ == 1) {
// do single full update
this->command(0x24);
this->start_data_();
this->write_array(this->buffer_, this->get_buffer_length_());
this->end_data_();
// TurnOnDisplay
this->command(0x22);
this->data(0xF7);
this->command(0x20);
return;
}
// if (this->full_update_every_ == 1 ||
if (this->at_update_ == 0) {
// do base update
this->command(0x24);
this->start_data_();
this->write_array(this->buffer_, this->get_buffer_length_());
this->end_data_();
this->command(0x26);
this->start_data_();
this->write_array(this->buffer_, this->get_buffer_length_());
this->end_data_();
// TurnOnDisplay
this->command(0x22);
this->data(0xF7);
this->command(0x20);
} else {
// do partial update
this->reset_();
this->write_lut_(PARTIAL_UPD_2IN9_LUT, PARTIAL_UPD_2IN9_LUT_SIZE);
this->command(0x37);
this->data(0x00);
this->data(0x00);
this->data(0x00);
this->data(0x00);
this->data(0x00);
this->data(0x40);
this->data(0x00);
this->data(0x00);
this->data(0x00);
this->data(0x00);
this->command(0x3C);
this->data(0x80);
this->command(0x22);
this->data(0xC0);
this->command(0x20);
if (!this->wait_until_idle_()) {
ESP_LOGE(TAG, "fail idle 2");
}
// SetWindows(0, 0, w, h)
this->command(0x44);
this->data(0x00);
this->data(((this->get_width_controller() - 1) >> 3) & 0xFF);
this->command(0x45);
this->data(0x00);
this->data(0x00);
this->data((this->get_height_internal() - 1) & 0xFF);
this->data(((this->get_height_internal() - 1) >> 8) & 0xFF);
// SetCursor(0, 0)
this->command(0x4E);
this->data(0x00);
this->command(0x4f);
this->data(0x00);
this->data(0x00);
// write b/w
this->command(0x24);
this->start_data_();
this->write_array(this->buffer_, this->get_buffer_length_());
this->end_data_();
// TurnOnDisplayPartial
this->command(0x22);
this->data(0x0F);
this->command(0x20);
}
this->at_update_ = (this->at_update_ + 1) % this->full_update_every_;
}
void WaveshareEPaper2P9InV2R2::write_lut_(const uint8_t *lut, const uint8_t size) {
// COMMAND WRITE LUT REGISTER
this->command(0x32);
for (uint8_t i = 0; i < size; i++)
this->data(lut[i]);
}
void WaveshareEPaper2P9InV2R2::dump_config() {
LOG_DISPLAY("", "Waveshare E-Paper", this);
ESP_LOGCONFIG(TAG, " Model: 2.9inV2R2");
ESP_LOGCONFIG(TAG, " Full Update Every: %" PRIu32, this->full_update_every_);
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);
}
void WaveshareEPaper2P9InV2R2::deep_sleep() {
this->command(0x10);
this->data(0x01);
}
int WaveshareEPaper2P9InV2R2::get_width_internal() { return 128; }
int WaveshareEPaper2P9InV2R2::get_height_internal() { return 296; }
int WaveshareEPaper2P9InV2R2::get_width_controller() { return this->get_width_internal(); }
void WaveshareEPaper2P9InV2R2::set_full_update_every(uint32_t full_update_every) {
this->full_update_every_ = full_update_every;
}
// ========================================================
// Good Display 2.9in black/white/grey
// Datasheet:

30
esphome/components/waveshare_epaper/waveshare_epaper.h
View File

@ -337,6 +337,36 @@ class WaveshareEPaper2P9InBV3 : public WaveshareEPaper {
int get_height_internal() override;
};
class WaveshareEPaper2P9InV2R2 : public WaveshareEPaper {
public:
WaveshareEPaper2P9InV2R2();
void initialize() override;
void display() override;
void dump_config() override;
void deep_sleep() override;
void set_full_update_every(uint32_t full_update_every);
protected:
void write_lut_(const uint8_t *lut, uint8_t size);
int get_width_internal() override;
int get_height_internal() override;
int get_width_controller() override;
uint32_t full_update_every_{30};
uint32_t at_update_{0};
private:
void reset_();
};
class WaveshareEPaper4P2In : public WaveshareEPaper {
public:
void initialize() override;