From 280d95183cb099de15aa4cd11325334a6012d8db Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Josip=20=C5=A0imun=20Ku=C4=8Di?= <josipsimunkuci@gmail.com>
Date: Thu, 11 Jun 2026 12:06:53 +0200
Subject: [PATCH] Add support for AC057TC1 5.7" panel used on Inkplate 6COLOR.

---
 src/bb_ep.inl     | 23 +++++++++++++++++++++++
 src/bb_epaper.cpp |  8 ++++++++
 src/bb_epaper.h   |  2 ++
 3 files changed, 33 insertions(+)

diff --git a/src/bb_ep.inl b/src/bb_ep.inl
index 6b598ae..c992b05 100644
--- a/src/bb_ep.inl
+++ b/src/bb_ep.inl
@@ -78,6 +78,11 @@ const uint8_t u8Colors_7clr[16] = {  // ACeP 7-color
     BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK
 };
 
+const uint8_t u8Colors_7clr_v2[16] = {  // Alternative ACeP 7-color, black white green blue red yellow orange
+    BBEP_BLACK, BBEP_WHITE, 0x05, 0x04, 0x03, 0x02, BBEP_ORANGE, BBEP_BLACK,
+    BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK
+};
+
 const uint8_t u8Colors_spectra[16] = {  // Spectra 6
     BBEP_BLACK, BBEP_WHITE, BBEP_YELLOW, BBEP_RED, 0x05, 0x06, BBEP_BLACK, BBEP_BLACK,
     BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK, BBEP_BLACK
@@ -3626,6 +3631,23 @@ const uint8_t epd73_spectra_init[] PROGMEM = {
     BUSY_WAIT,
     0
 };
+// AC057TC1 5.7" 600x448 7-color ACeP init sequence
+const uint8_t epd57_acep_init[] PROGMEM = {
+    3, UC8151_PSR, 0xef, 0x08, // panel setting
+    5, UC8151_PWR, 0x37, 0x00, 0x05, 0x05, // power setting
+    2, UC8151_PFS, 0x00, // power off sequence
+    4, UC8151_BTST, 0xc7, 0xc7, 0x1d, // booster soft start
+    2, UC8151_TSE, 0x00, // temperature sensor enable
+    2, UC8151_CDI, 0x37, // VCOM and data interval
+    2, UC8151_TCON, 0x20, // TCON
+    5, UC8151_TRES, 0x02, 0x58, 0x01, 0xc0, // resolution 600x448
+    2, UC8151_PWS, 0xaa,
+    2, UC8151_CDI, 0x37, // VCOM and data interval
+    1, UC8151_PON, // power on
+    BUSY_WAIT,
+    0
+};
+
 // Spectra 6 (GDEP040E01) 400x600 7-color init sequence
 // GoodDisplay reference; normal (host-managed power cycling) mode
 const uint8_t epd40_spectra_init[] PROGMEM = {
@@ -3817,6 +3839,7 @@ const EPD_PANEL panelDefs[] PROGMEM = {
     {400, 600, 0, epd40_spectra_init, NULL, NULL, BBEP_7COLOR, BBEP_CHIP_UC81xx, u8Colors_spectra}, // EP40_SPECTRA_400x600 GDEP040E01 Spectra 6 4" 400x600
     {176, 264, 0, badger2350_init_full, badger2350_init_fast, badger2350_init_part, BBEP_NEEDS_EXTRA_INIT, BBEP_CHIP_SSD16xx, u8Colors_2clr}, // EP27_176x264
     {176, 264, 0, badger2350g_init_full, badger2350g_init_fast, NULL, BBEP_NEEDS_EXTRA_INIT | BBEP_4GRAY, BBEP_CHIP_SSD16xx, u8Colors_4gray},// EP27_176x264_4GRAY
+    {600, 448, 0, epd57_acep_init, NULL, NULL, BBEP_NEEDS_EXTRA_INIT | BBEP_7COLOR, BBEP_CHIP_UC81xx, u8Colors_7clr_v2}, // EP57_ACEP_600x448 AC057TC1
 };
 //
 // Set the e-paper panel type
diff --git a/src/bb_epaper.cpp b/src/bb_epaper.cpp
index 12fb220..6a405a1 100644
--- a/src/bb_epaper.cpp
+++ b/src/bb_epaper.cpp
@@ -230,6 +230,14 @@ int rc = BBEP_ERROR_BAD_PARAMETER;
                 return BBEP_SUCCESS;
             }
             break;
+        case EPD_INKPLATE6COLOR: // DC:33 RST:19 BUSY:32 CS:27 MOSI:23 SCK:18
+            if (setPanelType(EP57_ACEP_600x448) == BBEP_SUCCESS) {
+                initIO(33, 19, 32, 27, 23, 18, 2000000);
+                setRotation(180);
+                return BBEP_SUCCESS;
+            }
+            break;
+
         case EPD_TRMNL_OG: // DC:5 CS:6 RST:10 BUSY:4 MOSI:8 SCK:7
             if (setPanelType(EP75_800x480) == BBEP_SUCCESS) {
                 initIO(5, 10, 4, 6, 8, 7, 10000000);
diff --git a/src/bb_epaper.h b/src/bb_epaper.h
index b4ac819..2c794ab 100644
--- a/src/bb_epaper.h
+++ b/src/bb_epaper.h
@@ -185,6 +185,7 @@ enum {
     EPD_WAVESHARE_397_4GRAY,
     EPD_LILYGO_T3S3,
     EPD_M5_PAPER_COLOR, // 4" 600x400 Spectra6
+    EPD_INKPLATE6COLOR,
     EPD_PRODUCT_COUNT
 };
 
@@ -266,6 +267,7 @@ enum {
     EP40_SPECTRA_400x600, // GDEP040E01 Spectra 6 4" 400x600
     EP27_176x264, // Badger2350
     EP27_176x264_4GRAY, // Badger2350
+    EP57_ACEP_600x448, // AC057TC1 7-color ACeP
     EP_PANEL_COUNT
 };
 #ifdef FUTURE