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Fix Waveshare 7in5bv3bwr image quality in BWR mode (#8043)

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Co-authored-by: zbikmarc <zbimarc+github@gmail.com>
This commit is contained in:
Marcin Żbik 2025-01-13 03:55:30 +01:00 committed by GitHub
parent aac3841991
commit dd3ffc7f29
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GPG Key ID: B5690EEEBB952194
1 changed files with 10 additions and 17 deletions
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27
esphome/components/waveshare_epaper/waveshare_epaper.cpp
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@ -2425,28 +2425,21 @@ void WaveshareEPaper7P5InBV3BWR::init_display_() {
this->command(0x01);
// 1-0=11: internal power
this->data(0x07);
this->data(0x17); // VGH&VGL
this->data(0x3F); // VSH
this->data(0x26); // VSL
this->data(0x11); // VSHR
this->data(0x07); // VRS_EN=1, VS_EN=1, VG_EN=1
this->data(0x17); // VGH&VGL ??? VCOM_SLEW=1 but this is fixed, VG_LVL[2:0]=111 => VGH=20V VGL=-20V, it could be 0x07
this->data(0x3F); // VSH=15V?
this->data(0x26); // VSL=-9.4V?
this->data(0x11); // VSHR=5.8V?
// VCOM DC Setting
this->command(0x82);
this->data(0x24); // VCOM
// Booster Setting
this->command(0x06);
this->data(0x27);
this->data(0x27);
this->data(0x2F);
this->data(0x17);
this->data(0x24); // VCOM=-1.9V
// POWER ON
this->command(0x04);
delay(100); // NOLINT
this->wait_until_idle_();
// COMMAND PANEL SETTING
this->command(0x00);
this->data(0x0F); // KW-3f KWR-2F BWROTP 0f BWOTP 1f
@ -2457,16 +2450,16 @@ void WaveshareEPaper7P5InBV3BWR::init_display_() {
this->data(0x20);
this->data(0x01); // gate 480
this->data(0xE0);
// COMMAND ...?
this->command(0x15);
this->data(0x00);
// COMMAND VCOM AND DATA INTERVAL SETTING
this->command(0x50);
this->data(0x20);
this->data(0x00);
// COMMAND TCON SETTING
this->command(0x60);
this->data(0x22);
// Resolution setting
this->command(0x65);
this->data(0x00);