diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.cpp b/esphome/components/waveshare_epaper/waveshare_epaper.cpp index 53bfa57f4f..8fdb9a3ac0 100644 --- a/esphome/components/waveshare_epaper/waveshare_epaper.cpp +++ b/esphome/components/waveshare_epaper/waveshare_epaper.cpp @@ -167,6 +167,25 @@ void WaveshareEPaper::on_safe_shutdown() { this->deep_sleep(); } // ======================================================== void WaveshareEPaperTypeA::initialize() { + // Achieve display intialization + this->init_display_(); + // If a reset pin is configured, eligible displays can be set to deep sleep + // between updates, as recommended by the hardware provider + if (this->reset_pin_ != nullptr) { + switch (this->model_) { + // More models can be added here to enable deep sleep if eligible + case WAVESHARE_EPAPER_1_54_IN: + case WAVESHARE_EPAPER_1_54_IN_V2: + this->deep_sleep_between_updates_ = true; + ESP_LOGI(TAG, "Set the display to deep sleep"); + this->deep_sleep(); + break; + default: + break; + } + } +} +void WaveshareEPaperTypeA::init_display_() { if (this->model_ == TTGO_EPAPER_2_13_IN_B74) { this->reset_pin_->digital_write(false); delay(10); @@ -261,6 +280,13 @@ void HOT WaveshareEPaperTypeA::display() { bool full_update = this->at_update_ == 0; bool prev_full_update = this->at_update_ == 1; + if (this->deep_sleep_between_updates_) { + ESP_LOGI(TAG, "Wake up the display"); + this->reset_(); + this->wait_until_idle_(); + this->init_display_(); + } + if (!this->wait_until_idle_()) { this->status_set_warning(); return; @@ -384,6 +410,11 @@ void HOT WaveshareEPaperTypeA::display() { this->command(0xFF); this->status_clear_warning(); + + if (this->deep_sleep_between_updates_) { + ESP_LOGI(TAG, "Set the display back to deep sleep"); + this->deep_sleep(); + } } int WaveshareEPaperTypeA::get_width_internal() { switch (this->model_) { @@ -445,6 +476,8 @@ void WaveshareEPaperTypeA::set_full_update_every(uint32_t full_update_every) { uint32_t WaveshareEPaperTypeA::idle_timeout_() { switch (this->model_) { + case WAVESHARE_EPAPER_1_54_IN: + case WAVESHARE_EPAPER_1_54_IN_V2: case TTGO_EPAPER_2_13_IN_B1: return 2500; default: diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.h b/esphome/components/waveshare_epaper/waveshare_epaper.h index f6ccf90861..42e8a16829 100644 --- a/esphome/components/waveshare_epaper/waveshare_epaper.h +++ b/esphome/components/waveshare_epaper/waveshare_epaper.h @@ -92,13 +92,20 @@ class WaveshareEPaperTypeA : public WaveshareEPaper { void display() override; void deep_sleep() override { - if (this->model_ == WAVESHARE_EPAPER_2_9_IN_V2 || this->model_ == WAVESHARE_EPAPER_1_54_IN_V2) { - // COMMAND DEEP SLEEP MODE - this->command(0x10); - this->data(0x01); - } else { - // COMMAND DEEP SLEEP MODE - this->command(0x10); + switch (this->model_) { + // Models with specific deep sleep command and data + case WAVESHARE_EPAPER_1_54_IN: + case WAVESHARE_EPAPER_1_54_IN_V2: + case WAVESHARE_EPAPER_2_9_IN_V2: + // COMMAND DEEP SLEEP MODE + this->command(0x10); + this->data(0x01); + break; + // Other models default to simple deep sleep command + default: + // COMMAND DEEP SLEEP + this->command(0x10); + break; } this->wait_until_idle_(); } @@ -108,6 +115,8 @@ class WaveshareEPaperTypeA : public WaveshareEPaper { protected: void write_lut_(const uint8_t *lut, uint8_t size); + void init_display_(); + int get_width_internal() override; int get_height_internal() override; @@ -118,6 +127,8 @@ class WaveshareEPaperTypeA : public WaveshareEPaper { uint32_t at_update_{0}; WaveshareEPaperTypeAModel model_; uint32_t idle_timeout_() override; + + bool deep_sleep_between_updates_{false}; }; enum WaveshareEPaperTypeBModel {