Heltec Wireless Paper, VM-E213 Hardware Revisions (#7258)

* Tests to identify display model

* (InkHUD) SSD1682 controller IC
Has a few quirks, gets its own base class

* (InkHUD) E0213A367 Display
For Heltec Wireless Paper V1.1.1, V1.2
For Heltec VM-E213 V1.1

* (InkHUD) Select display model at boot

* (BaseUI) Wrapper to combine multiple GxEPD2 drivers
Workaround for issue of GxEPD2_BW objects not having a shared base class. Allows us to select a driver at runtime.
https://github.com/meshtastic/firmware/issues/6851#issuecomment-2905353447

* (BaseUI) Select E-Ink model at boot

* (InkHUD) SSD1682 deep sleep

* (InkHUD) No deep sleep for SSD1682

* (InkHUD) Fully no-op deep sleep for SSD1682

src/graphics/EInkDisplay2.cpp

@@ -6,6 +6,10 @@
 #include "main.h"
 #include <SPI.h>
 
+#ifdef GXEPD2_DRIVER_0
+#include "einkDetect.h"
+#endif
+
 /*
     The macros EINK_DISPLAY_MODEL, EINK_WIDTH, and EINK_HEIGHT are defined as build_flags in a variant's platformio.ini
     Previously, these macros were defined at the top of this file.
@@ -174,9 +178,8 @@ bool EInkDisplay::connect()
         }
     }
 
-#elif defined(HELTEC_WIRELESS_PAPER_V1_0) || defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_VISION_MASTER_E213) ||             \
+#elif defined(HELTEC_WIRELESS_PAPER_V1_0) || defined(HELTEC_VISION_MASTER_E290) || defined(TLORA_T3S3_EPAPER) ||                 \
-    defined(HELTEC_VISION_MASTER_E290) || defined(TLORA_T3S3_EPAPER) || defined(CROWPANEL_ESP32S3_5_EPAPER) ||                   \
+    defined(CROWPANEL_ESP32S3_5_EPAPER) || defined(CROWPANEL_ESP32S3_4_EPAPER) || defined(CROWPANEL_ESP32S3_2_EPAPER)
-    defined(CROWPANEL_ESP32S3_4_EPAPER) || defined(CROWPANEL_ESP32S3_2_EPAPER)
     {
         // Start HSPI
         hspi = new SPIClass(HSPI);
@@ -232,6 +235,23 @@ bool EInkDisplay::connect()
         adafruitDisplay->init();
         adafruitDisplay->setRotation(3);
     }
+#elif defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_VISION_MASTER_E213)
+
+    // Detect display model, before starting SPI
+    EInkDetectionResult displayModel = detectEInk();
+
+    // Start HSPI
+    hspi = new SPIClass(HSPI);
+    hspi->begin(PIN_EINK_SCLK, -1, PIN_EINK_MOSI, PIN_EINK_CS); // SCLK, MISO, MOSI, SS
+
+    // Create GxEPD2 object
+    adafruitDisplay = new GxEPD2_Multi<GXEPD2_DRIVER_0, GXEPD2_DRIVER_1>((uint8_t)displayModel, PIN_EINK_CS, PIN_EINK_DC,
+                                                                         PIN_EINK_RES, PIN_EINK_BUSY, *hspi);
+
+    // Init GxEPD2
+    adafruitDisplay->init();
+    adafruitDisplay->setRotation(3);
+
 #endif
 
     return true;

src/graphics/EInkDisplay2.h

@@ -5,6 +5,10 @@
 #include "GxEPD2_BW.h"
 #include <OLEDDisplay.h>
 
+#ifdef GXEPD2_DRIVER_0 // If variant has multiple possible display models
+#include "GxEPD2Multi.h"
+#endif
+
 /**
  * An adapter class that allows using the GxEPD2 library as if it was an OLEDDisplay implementation.
  *
@@ -63,8 +67,15 @@ class EInkDisplay : public OLEDDisplay
     // Connect to the display
     virtual bool connect() override;
 
-    // AdafruitGFX display object - instantiated in connect(), variant specific
+#ifdef GXEPD2_DRIVER_0
+    // AdafruitGFX display object - wrapper for multiple drivers
+    // Allows runtime detection of multiple displays
+    // Avoid this situation if possible!
+    GxEPD2_Multi<GXEPD2_DRIVER_0, GXEPD2_DRIVER_1> *adafruitDisplay = NULL;
+#else
+    // AdafruitGFX display object (for single display model) - instantiated in connect(), variant specific
     GxEPD2_BW<EINK_DISPLAY_MODEL, EINK_DISPLAY_MODEL::HEIGHT> *adafruitDisplay = NULL;
+#endif
 
     // If display uses HSPI
 #if defined(HELTEC_WIRELESS_PAPER) || defined(HELTEC_WIRELESS_PAPER_V1_0) || defined(HELTEC_VISION_MASTER_E213) ||               \

src/graphics/GxEPD2Multi.h

@@ -0,0 +1,135 @@
+// Wrapper class for GxEPD2_BW
+
+// Generic signature at build-time, so that we can detect display model at run-time
+// Workaround for issue of GxEPD2_BW objects not having a shared base class
+// Only exposes methods which we are actually using
+
+template <typename Driver0, typename Driver1> class GxEPD2_Multi
+{
+  public:
+    void drawPixel(int16_t x, int16_t y, uint16_t color)
+    {
+        if (which == 0)
+            driver0->drawPixel(x, y, color);
+        else
+            driver1->drawPixel(x, y, color);
+    }
+
+    bool nextPage()
+    {
+        if (which == 0)
+            return driver0->nextPage();
+        else
+            return driver1->nextPage();
+    }
+
+    void hibernate()
+    {
+        if (which == 0)
+            driver0->hibernate();
+        else
+            driver1->hibernate();
+    }
+
+    void init(uint32_t serial_diag_bitrate = 0)
+    {
+        if (which == 0)
+            driver0->init(serial_diag_bitrate);
+        else
+            driver1->init(serial_diag_bitrate);
+    }
+
+    void init(uint32_t serial_diag_bitrate, bool initial, uint16_t reset_duration = 20, bool pulldown_rst_mode = false)
+    {
+        if (which == 0)
+            driver0->init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
+        else
+            driver1->init(serial_diag_bitrate, initial, reset_duration, pulldown_rst_mode);
+    }
+
+    void setRotation(uint8_t x)
+    {
+        if (which == 0)
+            driver0->setRotation(x);
+        else
+            driver1->setRotation(x);
+    }
+
+    void setPartialWindow(uint16_t x, uint16_t y, uint16_t w, uint16_t h)
+    {
+        if (which == 0)
+            driver0->setPartialWindow(x, y, w, h);
+        else
+            driver1->setPartialWindow(x, y, w, h);
+    }
+
+    void setFullWindow()
+    {
+        if (which == 0)
+            driver0->setFullWindow();
+        else
+            driver1->setFullWindow();
+    }
+
+    int16_t width()
+    {
+        if (which == 0)
+            return driver0->width();
+        else
+            return driver1->width();
+    }
+
+    int16_t height()
+    {
+        if (which == 0)
+            return driver0->height();
+        else
+            return driver1->height();
+    }
+
+    void clearScreen(uint8_t value = 0xFF)
+    {
+        if (which == 0)
+            driver0->clearScreen();
+        else
+            driver1->clearScreen();
+    }
+
+    void endAsyncFull()
+    {
+        if (which == 0)
+            driver0->endAsyncFull();
+        else
+            driver1->endAsyncFull();
+    }
+
+    // Exposes methods of the GxEPD2_EPD object which is usually available as GxEPD2_BW::epd
+    class Epd2Wrapper
+    {
+      public:
+        bool isBusy() { return m_epd2->isBusy(); }
+        GxEPD2_EPD *m_epd2;
+    } epd2;
+
+    // Constructor
+    // Select driver by passing whichDriver as 0 or 1
+    GxEPD2_Multi(uint8_t whichDriver, int16_t cs, int16_t dc, int16_t rst, int16_t busy, SPIClass &spi)
+    {
+        assert(whichDriver == 0 || whichDriver == 1);
+        which = whichDriver;
+        LOG_DEBUG("GxEPD2_Multi driver: %d", which);
+
+        if (which == 0) {
+            driver0 = new GxEPD2_BW<Driver0, Driver0::HEIGHT>(Driver0(cs, dc, rst, busy, spi));
+            epd2.m_epd2 = &(driver0->epd2);
+        } else if (which == 1) {
+            driver1 = new GxEPD2_BW<Driver1, Driver1::HEIGHT>(Driver1(cs, dc, rst, busy, spi));
+            epd2.m_epd2 = &(driver1->epd2);
+        }
+    }
+
+  private:
+    uint8_t which;
+    GxEPD2_BW<Driver0, Driver0::HEIGHT> *driver0;
+    GxEPD2_BW<Driver1, Driver1::HEIGHT> *driver1;
+};

src/graphics/niche/Drivers/EInk/E0213A367.cpp

@@ -0,0 +1,84 @@
+#include "./E0213A367.h"
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+using namespace NicheGraphics::Drivers;
+
+// Map the display controller IC's output to the connected panel
+void E0213A367::configScanning()
+{
+    // "Driver output control"
+    // Scan gates from 0 to 249 (vertical resolution 250px)
+    sendCommand(0x01);
+    sendData(0xF9);
+    sendData(0x00);
+}
+
+// Specify which information is used to control the sequence of voltages applied to move the pixels
+void E0213A367::configWaveform()
+{
+    // This command (0x37) is poorly documented
+    // As of July 2025, the datasheet for this display's controller IC is unavailable
+    // The values are supplied by Heltec, who presumably have privileged access to information from the display manufacturer
+    // Datasheet for the similar SSD1680 IC hints at the function of this command:
+
+    // "Spare VCOM OTP selection":
+    // Unclear why 0x40 is set. Sane values for related SSD1680 seem to be 0x80 or 0x00.
+    // Maybe value is redundant? No noticeable impact when set to 0x00.
+    // We'll leave it set to 0x40, following Heltec's lead, just in case.
+
+    // "Display Mode"
+    // Seems to specify whether a waveform stored in OTP should use display mode 1 or 2 (full refresh or differential refresh)
+
+    // Unusual that waveforms are programmed to OTP, but this meta information is not ..?
+
+    sendCommand(0x37); // "Write Register for Display Option" ?
+    sendData(0x40);    // "Spare VCOM OTP selection" ?
+    sendData(0x80);    // "Display Mode for WS[7:0]" ?
+    sendData(0x03);    // "Display Mode for WS[15:8]" ?
+    sendData(0x0E);    // "Display Mode [23:16]" ?
+
+    switch (updateType) {
+    case FAST:
+        sendCommand(0x3C); // Border waveform:
+        sendData(0x81);    // As specified by Heltec. Actually VCOM (0x80)?. Bit 0 seems redundant here.
+        break;
+    case FULL:
+    default:
+        sendCommand(0x3C); // Border waveform:
+        sendData(0x01);    // Follow LUT 1 (blink same as white pixels)
+        break;
+    }
+}
+
+// Tell controller IC which operations to run
+void E0213A367::configUpdateSequence()
+{
+    switch (updateType) {
+    case FAST:
+        sendCommand(0x22); // Set "update sequence"
+        sendData(0xFF);    // Will load LUT from OTP memory, Display mode 2 "differential refresh"
+        break;
+    case FULL:
+    default:
+        sendCommand(0x22); // Set "update sequence"
+        sendData(0xF7);    // Will load LUT from OTP memory, Display mode 1 "full refresh"
+        break;
+    }
+}
+
+// Once the refresh operation has been started,
+// begin periodically polling the display to check for completion, using the normal Meshtastic threading code
+// Only used when refresh is "async"
+void E0213A367::detachFromUpdate()
+{
+    switch (updateType) {
+    case FAST:
+        return beginPolling(50, 500); // At least 500ms for fast refresh
+    case FULL:
+    default:
+        return beginPolling(100, 1500); // At least 1.5 seconds for full refresh
+    }
+}
+
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

src/graphics/niche/Drivers/EInk/E0213A367.h

@@ -0,0 +1,41 @@
+/*
+
+E-Ink display driver
+    - SSD1682
+    - Manufacturer: SEEKINK
+    - Size: 2.13 inch
+    - Resolution: 122px x 255px
+    - Flex connector marking: HINK-E0213A162-A1 (hidden, printed on reverse)
+
+*/
+
+#pragma once
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+#include "configuration.h"
+
+#include "./SSD1682.h"
+
+namespace NicheGraphics::Drivers
+{
+class E0213A367 : public SSD1682
+{
+    // Display properties
+  private:
+    static constexpr uint32_t width = 122;
+    static constexpr uint32_t height = 250;
+    static constexpr UpdateTypes supported = (UpdateTypes)(FULL | FAST);
+
+  public:
+    E0213A367() : SSD1682(width, height, supported, 0) {}
+
+  protected:
+    void configScanning() override;
+    void configWaveform() override;
+    void configUpdateSequence() override;
+    void detachFromUpdate() override;
+};
+
+} // namespace NicheGraphics::Drivers
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

src/graphics/niche/Drivers/EInk/SSD1682.cpp

@@ -0,0 +1,41 @@
+#include "./SSD1682.h"
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+using namespace NicheGraphics::Drivers;
+
+SSD1682::SSD1682(uint16_t width, uint16_t height, EInk::UpdateTypes supported, uint8_t bufferOffsetX)
+    : SSD16XX(width, height, supported, bufferOffsetX)
+{
+}
+
+// SSD1682 only accepts single-byte x and y values
+// This causes an incompatibility with the default SSD16XX::configFullscreen
+void SSD1682::configFullscreen()
+{
+    // Define the boundaries of the "fullscreen" region, for the controller IC
+    static const uint8_t sx = bufferOffsetX; // Notice the offset
+    static const uint8_t sy = 0;
+    static const uint8_t ex = bufferRowSize + bufferOffsetX - 1; // End is "max index", not "count". Minus 1 handles this
+    static const uint8_t ey = height;
+
+    // Data entry mode - Left to Right, Top to Bottom
+    sendCommand(0x11);
+    sendData(0x03);
+
+    // Select controller IC memory region to display a fullscreen image
+    sendCommand(0x44); // Memory X start - end
+    sendData(sx);
+    sendData(ex);
+    sendCommand(0x45); // Memory Y start - end
+    sendData(sy);
+    sendData(ey);
+
+    // Place the cursor at the start of this memory region, ready to send image data x=0 y=0
+    sendCommand(0x4E); // Memory cursor X
+    sendData(sx);
+    sendCommand(0x4F); // Memory cursor y
+    sendData(sy);
+}
+
+#endif

src/graphics/niche/Drivers/EInk/SSD1682.h

@@ -0,0 +1,31 @@
+/*
+
+E-Ink base class for displays based on SSD1682
+
+SSD1682 has a few quirks. We're implementing them here in a new base class,
+to avoid re-implementing them every time we need to add a new SSD1682-based display.
+
+*/
+
+#pragma once
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+#include "configuration.h"
+
+#include "./SSD16XX.h"
+
+namespace NicheGraphics::Drivers
+{
+
+class SSD1682 : public SSD16XX
+{
+  public:
+    SSD1682(uint16_t width, uint16_t height, EInk::UpdateTypes supported, uint8_t bufferOffsetX = 0);
+    virtual void configFullscreen(); // Select memory region on controller IC
+    virtual void deepSleep() {}      // Not usable (image memory not retained)
+};
+
+} // namespace NicheGraphics::Drivers
+
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

variants/heltec_vision_master_e213/einkDetect.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "configuration.h"
+
+enum class EInkDetectionResult : uint8_t {
+    LCMEN213EFC1 = 0, // Initial version
+    E0213A367 = 1,    // E213 PCB marked V1.1 (Mid 2025)
+};
+
+EInkDetectionResult detectEInk()
+{
+    // Test 1: Logic of BUSY pin
+
+    // Determines controller IC manufacturer
+    // Fitipower: busy when LOW
+    // Solomon Systech: busy when HIGH
+
+    // Force display BUSY by holding reset pin active
+    pinMode(PIN_EINK_RES, OUTPUT);
+    digitalWrite(PIN_EINK_RES, LOW);
+
+    delay(10);
+
+    // Read whether pin is HIGH or LOW while busy
+    pinMode(PIN_EINK_BUSY, INPUT);
+    bool busyLogic = digitalRead(PIN_EINK_BUSY);
+
+    // Test complete. Release pin
+    pinMode(PIN_EINK_RES, INPUT);
+
+    if (busyLogic == LOW)
+        return EInkDetectionResult::LCMEN213EFC1;
+    else // busy HIGH
+        return EInkDetectionResult::E0213A367;
+}

variants/heltec_vision_master_e213/nicheGraphics.h

@@ -18,16 +18,22 @@
 
 // Shared NicheGraphics components
 // --------------------------------
+#include "graphics/niche/Drivers/EInk/E0213A367.h"
 #include "graphics/niche/Drivers/EInk/LCMEN2R13EFC1.h"
 #include "graphics/niche/Inputs/TwoButton.h"
 
-// Button feedback
+#include "buzz.h"       // Button feedback
-#include "buzz.h"
+#include "einkDetect.h" // Detect display model at runtime
 
 void setupNicheGraphics()
 {
     using namespace NicheGraphics;
 
+    // Detect E-Ink Model
+    // -------------------
+
+    EInkDetectionResult displayModel = detectEInk();
+
     // SPI
     // -----------------------------
 
@@ -38,7 +44,13 @@ void setupNicheGraphics()
     // E-Ink Driver
     // -----------------------------
 
-    Drivers::EInk *driver = new Drivers::LCMEN213EFC1;
+    Drivers::EInk *driver;
+
+    if (displayModel == EInkDetectionResult::LCMEN213EFC1) // V1 (unmarked)
+        driver = new Drivers::LCMEN213EFC1;
+    else if (displayModel == EInkDetectionResult::E0213A367) // V1.1
+        driver = new Drivers::E0213A367;
+
     driver->begin(hspi, PIN_EINK_DC, PIN_EINK_CS, PIN_EINK_BUSY, PIN_EINK_RES);
 
     // InkHUD
@@ -51,7 +63,11 @@ void setupNicheGraphics()
 
     // Set how many FAST updates per FULL update
     // Set how unhealthy additional FAST updates beyond this number are
-    inkhud->setDisplayResilience(10, 1.5);
+
+    if (displayModel == EInkDetectionResult::LCMEN213EFC1) // V1 (unmarked)
+        inkhud->setDisplayResilience(10, 1.5);
+    else if (displayModel == EInkDetectionResult::E0213A367) // V1.1
+        inkhud->setDisplayResilience(15, 3);
 
     // Select fonts
     InkHUD::Applet::fontLarge = FREESANS_12PT_WIN1252;

variants/heltec_vision_master_e213/platformio.ini

@@ -7,7 +7,8 @@ build_flags =
   -Ivariants/heltec_vision_master_e213 
   -DHELTEC_VISION_MASTER_E213
   -DUSE_EINK
-  -DEINK_DISPLAY_MODEL=GxEPD2_213_FC1
+  -DGXEPD2_DRIVER_0=GxEPD2_213_FC1
+  -DGXEPD2_DRIVER_1=GxEPD2_213_E0213A367
   -DEINK_WIDTH=250
   -DEINK_HEIGHT=122
   -DUSE_EINK_DYNAMICDISPLAY            ; Enable Dynamic EInk
@@ -16,7 +17,7 @@ build_flags =
   -DEINK_HASQUIRK_GHOSTING             ; Display model is identified as "prone to ghosting"
 lib_deps =
   ${esp32s3_base.lib_deps}
-  https://github.com/meshtastic/GxEPD2/archive/b202ebfec6a4821e098cf7a625ba0f6f2400292d.zip
+  https://github.com/meshtastic/GxEPD2/archive/1655054ba298e0e29fc2044741940f927f9c2a43.zip
   lewisxhe/PCF8563_Library@^1.0.1
 upload_speed = 115200
 

variants/heltec_wireless_paper/einkDetect.h

@@ -0,0 +1,35 @@
+#pragma once
+
+#include "configuration.h"
+
+enum class EInkDetectionResult : uint8_t {
+    LCMEN213EFC1 = 0, // V1.1
+    E0213A367 = 1,    // V1.1.1, V1.2
+};
+
+EInkDetectionResult detectEInk()
+{
+    // Test 1: Logic of BUSY pin
+
+    // Determines controller IC manufacturer
+    // Fitipower: busy when LOW
+    // Solomon Systech: busy when HIGH
+
+    // Force display BUSY by holding reset pin active
+    pinMode(PIN_EINK_RES, OUTPUT);
+    digitalWrite(PIN_EINK_RES, LOW);
+
+    delay(10);
+
+    // Read whether pin is HIGH or LOW while busy
+    pinMode(PIN_EINK_BUSY, INPUT);
+    bool busyLogic = digitalRead(PIN_EINK_BUSY);
+
+    // Test complete. Release pin
+    pinMode(PIN_EINK_RES, INPUT);
+
+    if (busyLogic == LOW)
+        return EInkDetectionResult::LCMEN213EFC1;
+    else // busy HIGH
+        return EInkDetectionResult::E0213A367;
+}

variants/heltec_wireless_paper/nicheGraphics.h

@@ -18,13 +18,21 @@
 
 // Shared NicheGraphics components
 // --------------------------------
+#include "graphics/niche/Drivers/EInk/E0213A367.h"
 #include "graphics/niche/Drivers/EInk/LCMEN2R13EFC1.h"
 #include "graphics/niche/Inputs/TwoButton.h"
 
+#include "einkDetect.h" // Detect display model at runtime
+
 void setupNicheGraphics()
 {
     using namespace NicheGraphics;
 
+    // Detect E-Ink Model
+    // -------------------
+
+    EInkDetectionResult displayModel = detectEInk();
+
     // SPI
     // -----------------------------
 
@@ -35,7 +43,13 @@ void setupNicheGraphics()
     // E-Ink Driver
     // -----------------------------
 
-    Drivers::EInk *driver = new Drivers::LCMEN213EFC1;
+    Drivers::EInk *driver;
+
+    if (displayModel == EInkDetectionResult::LCMEN213EFC1) // V1.1
+        driver = new Drivers::LCMEN213EFC1;
+    else if (displayModel == EInkDetectionResult::E0213A367) // V1.1.1, V1.2
+        driver = new Drivers::E0213A367;
+
     driver->begin(hspi, PIN_EINK_DC, PIN_EINK_CS, PIN_EINK_BUSY, PIN_EINK_RES);
 
     // InkHUD
@@ -48,7 +62,11 @@ void setupNicheGraphics()
 
     // Set how many FAST updates per FULL update
     // Set how unhealthy additional FAST updates beyond this number are
-    inkhud->setDisplayResilience(10, 1.5);
+
+    if (displayModel == EInkDetectionResult::LCMEN213EFC1) // V1.1 (unmarked)
+        inkhud->setDisplayResilience(10, 1.5);
+    else if (displayModel == EInkDetectionResult::E0213A367) // V1.1.1, V1.2
+        inkhud->setDisplayResilience(15, 3);
 
     // Select fonts
     InkHUD::Applet::fontLarge = FREESANS_12PT_WIN1252;

variants/heltec_wireless_paper/platformio.ini

@@ -7,7 +7,8 @@ build_flags =
   ${esp32s3_base.build_flags} 
   -I variants/heltec_wireless_paper
   -D HELTEC_WIRELESS_PAPER 
-  -D EINK_DISPLAY_MODEL=GxEPD2_213_FC1
+  -D GXEPD2_DRIVER_0=GxEPD2_213_FC1
+  -D GXEPD2_DRIVER_1=GxEPD2_213_E0213A367
   -D EINK_WIDTH=250
   -D EINK_HEIGHT=122
   -D USE_EINK
@@ -17,7 +18,7 @@ build_flags =
   -D EINK_HASQUIRK_GHOSTING             ; Display model is identified as "prone to ghosting"
 lib_deps =
   ${esp32s3_base.lib_deps}
-  https://github.com/meshtastic/GxEPD2/archive/b202ebfec6a4821e098cf7a625ba0f6f2400292d.zip
+  https://github.com/meshtastic/GxEPD2/archive/1655054ba298e0e29fc2044741940f927f9c2a43.zip
   lewisxhe/PCF8563_Library@^1.0.1
 upload_speed = 115200