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fix: (Component WaveshareEpaper) Correct display tx cmd

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rrachasak 2024-12-20 14:52:43 +07:00
parent ec5fccf9c8
commit 9e05af358d
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1 changed files with 7 additions and 4 deletions
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esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@ -1960,19 +1960,22 @@ void WaveshareEPaper4P2InBV2::initialize() {
} }
void HOT WaveshareEPaper4P2InBV2::display() { void HOT WaveshareEPaper4P2InBV2::display() {
const size_t buf_len = this->get_buffer_length_() / 2u; const uint32_t buf_half_len = this->get_buffer_length_() / 2u;
// COMMAND DATA START TRANSMISSION 1 (B/W data) // COMMAND DATA START TRANSMISSION 1 (B/W data)
this->command(0x10); this->command(0x10);
this->start_data_(); this->start_data_();
this->write_array(this->buffer_, buf_len); for (size_t i = 0; i < buf_half_len; i++) {
this->data(this->buffer_[i]);
}
this->end_data_(); this->end_data_();
delay(2);
// COMMAND DATA START TRANSMISSION 2 (RED data) // COMMAND DATA START TRANSMISSION 2 (RED data)
this->command(0x13); this->command(0x13);
this->start_data_(); this->start_data_();
this->write_array(this->buffer_ + buf_len, buf_len); for (size_t i = 0; i < buf_half_len; i++) {
this->data(this->buffer_[i + buf_half_len]);
}
this->end_data_(); this->end_data_();
delay(2); delay(2);