From 7f2a6e74038beaf729c7acfc8f7a0aba9651d810 Mon Sep 17 00:00:00 2001
From: Thomas Klingbeil <mail@thomas-klingbeil.de>
Date: Thu, 12 Mar 2020 01:19:01 +0100
Subject: [PATCH] Add support for TTGO epaper boards with B73 revision (#928)

* Add support for TTGO epaper boards with B73 revision
---
 .../components/waveshare_epaper/display.py    |  1 +
 .../waveshare_epaper/waveshare_epaper.cpp     | 31 +++++++++++++++++++
 .../waveshare_epaper/waveshare_epaper.h       |  1 +
 3 files changed, 33 insertions(+)

diff --git a/esphome/components/waveshare_epaper/display.py b/esphome/components/waveshare_epaper/display.py
index 343059d0c1..77322cbb70 100644
--- a/esphome/components/waveshare_epaper/display.py
+++ b/esphome/components/waveshare_epaper/display.py
@@ -23,6 +23,7 @@ MODELS = {
     '1.54in': ('a', WaveshareEPaperTypeAModel.WAVESHARE_EPAPER_1_54_IN),
     '2.13in': ('a', WaveshareEPaperTypeAModel.WAVESHARE_EPAPER_2_13_IN),
     '2.13in-ttgo': ('a', WaveshareEPaperTypeAModel.TTGO_EPAPER_2_13_IN),
+    '2.13in-ttgo-b73': ('a', WaveshareEPaperTypeAModel.TTGO_EPAPER_2_13_IN_B73),
     '2.90in': ('a', WaveshareEPaperTypeAModel.WAVESHARE_EPAPER_2_9_IN),
     '2.70in': ('b', WaveshareEPaper2P7In),
     '2.90in-b': ('b', WaveshareEPaper2P9InB),
diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.cpp b/esphome/components/waveshare_epaper/waveshare_epaper.cpp
index ff29df4444..fd869b46ec 100644
--- a/esphome/components/waveshare_epaper/waveshare_epaper.cpp
+++ b/esphome/components/waveshare_epaper/waveshare_epaper.cpp
@@ -18,6 +18,8 @@ static const uint8_t PARTIAL_UPDATE_LUT[LUT_SIZE_WAVESHARE] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x13, 0x14, 0x44, 0x12, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00};
 
 static const uint8_t LUT_SIZE_TTGO = 70;
+static const uint8_t LUT_SIZE_TTGO_B73 = 100;
+
 static const uint8_t FULL_UPDATE_LUT_TTGO[LUT_SIZE_TTGO] = {
     0x80, 0x60, 0x40, 0x00, 0x00, 0x00, 0x00,  // LUT0: BB:     VS 0 ~7
     0x10, 0x60, 0x20, 0x00, 0x00, 0x00, 0x00,  // LUT1: BW:     VS 0 ~7
@@ -33,6 +35,26 @@ static const uint8_t FULL_UPDATE_LUT_TTGO[LUT_SIZE_TTGO] = {
     0x00, 0x00, 0x00, 0x00, 0x00,              // TP6 A~D RP6
 };
 
+static const uint8_t FULL_UPDATE_LUT_TTGO_B73[LUT_SIZE_TTGO_B73] = {
+    0xA0, 0x90, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x90, 0xA0, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0xA0, 0x90, 0x50, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x50, 0x90, 0xA0, 0x00,
+    0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+
+    0x0F, 0x0F, 0x00, 0x00, 0x00, 0x0F, 0x0F, 0x00, 0x00, 0x03, 0x0F, 0x0F, 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,
+};
+
+static const uint8_t PARTIAL_UPDATE_LUT_TTGO_B73[LUT_SIZE_TTGO_B73] = {
+    0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+    0x00, 0x00, 0x00, 0x40, 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,
+
+    0x0A, 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,
+};
+
 static const uint8_t PARTIAL_UPDATE_LUT_TTGO[LUT_SIZE_TTGO] = {
     0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  // LUT0: BB:     VS 0 ~7
     0x80, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,  // LUT1: BW:     VS 0 ~7
@@ -169,6 +191,9 @@ void WaveshareEPaperTypeA::dump_config() {
     case TTGO_EPAPER_2_13_IN:
       ESP_LOGCONFIG(TAG, "  Model: 2.13in (TTGO)");
       break;
+    case TTGO_EPAPER_2_13_IN_B73:
+      ESP_LOGCONFIG(TAG, "  Model: 2.13in (TTGO B73)");
+      break;
     case WAVESHARE_EPAPER_2_9_IN:
       ESP_LOGCONFIG(TAG, "  Model: 2.9in");
       break;
@@ -191,6 +216,8 @@ void HOT WaveshareEPaperTypeA::display() {
     if (full_update != prev_full_update) {
       if (this->model_ == TTGO_EPAPER_2_13_IN) {
         this->write_lut_(full_update ? FULL_UPDATE_LUT_TTGO : PARTIAL_UPDATE_LUT_TTGO, LUT_SIZE_TTGO);
+      } else if (this->model_ == TTGO_EPAPER_2_13_IN_B73) {
+        this->write_lut_(full_update ? FULL_UPDATE_LUT_TTGO_B73 : PARTIAL_UPDATE_LUT_TTGO_B73, LUT_SIZE_TTGO_B73);
       } else {
         this->write_lut_(full_update ? FULL_UPDATE_LUT : PARTIAL_UPDATE_LUT, LUT_SIZE_WAVESHARE);
       }
@@ -247,6 +274,8 @@ int WaveshareEPaperTypeA::get_width_internal() {
       return 128;
     case TTGO_EPAPER_2_13_IN:
       return 128;
+    case TTGO_EPAPER_2_13_IN_B73:
+      return 128;
     case WAVESHARE_EPAPER_2_9_IN:
       return 128;
   }
@@ -260,6 +289,8 @@ int WaveshareEPaperTypeA::get_height_internal() {
       return 250;
     case TTGO_EPAPER_2_13_IN:
       return 250;
+    case TTGO_EPAPER_2_13_IN_B73:
+      return 250;
     case WAVESHARE_EPAPER_2_9_IN:
       return 296;
   }
diff --git a/esphome/components/waveshare_epaper/waveshare_epaper.h b/esphome/components/waveshare_epaper/waveshare_epaper.h
index 46fe465c5b..c21cabcaf4 100644
--- a/esphome/components/waveshare_epaper/waveshare_epaper.h
+++ b/esphome/components/waveshare_epaper/waveshare_epaper.h
@@ -68,6 +68,7 @@ enum WaveshareEPaperTypeAModel {
   WAVESHARE_EPAPER_2_13_IN,
   WAVESHARE_EPAPER_2_9_IN,
   TTGO_EPAPER_2_13_IN,
+  TTGO_EPAPER_2_13_IN_B73,
 };
 
 class WaveshareEPaperTypeA : public WaveshareEPaper {