Driver for WeAct Studio 2.9" ePaper module

src/graphics/niche/Drivers/EInk/ZJY128296_029EAAMFGN.cpp

@@ -0,0 +1,59 @@
+#include "./ZJY128296_029EAAMFGN.h"
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+using namespace NicheGraphics::Drivers;
+
+// Map the display controller IC's output to the connected panel
+void ZJY128296_029EAAMFGN::configScanning()
+{
+    // "Driver output control"
+    // Scan gates from 0 to 295 (vertical resolution 296px)
+    sendCommand(0x01);
+    sendData(0x27); // Number of gates (295, bits 0-7)
+    sendData(0x01); // Number of gates (295, bit 8)
+    sendData(0x00); // (Do not invert scanning order)
+}
+
+// Specify which information is used to control the sequence of voltages applied to move the pixels
+// - For this display, configUpdateSequence() specifies that a suitable LUT will be loaded from
+//   the controller IC's OTP memory, when the update procedure begins.
+void ZJY128296_029EAAMFGN::configWaveform()
+{
+    sendCommand(0x3C); // Border waveform:
+    sendData(0x05);    // Screen border should follow LUT1 waveform (actively drive pixels white)
+
+    sendCommand(0x18); // Temperature sensor:
+    sendData(0x80);    // Use internal temperature sensor to select an appropriate refresh waveform
+}
+
+void ZJY128296_029EAAMFGN::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
+        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 ZJY128296_029EAAMFGN::detachFromUpdate()
+{
+    switch (updateType) {
+    case FAST:
+        return beginPolling(50, 300); // At least 300ms for fast refresh
+    case FULL:
+    default:
+        return beginPolling(100, 2000); // At least 2 seconds for full refresh
+    }
+}
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS

src/graphics/niche/Drivers/EInk/ZJY128296_029EAAMFGN.h

@@ -0,0 +1,44 @@
+/*
+
+E-Ink display driver
+    - ZJY128296-029EAAMFGN
+    - Manufacturer: Zhongjingyuan
+    - Size: 2.9 inch
+    - Resolution: 128px x 296px
+    - Flex connector label (hints id only): FPC-A005 20.06.15 TRX
+
+    Note: as of Feb. 2025, these panels are used for "WeActStudio 2.9in B&W" display modules
+
+*/
+
+#pragma once
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+#include "configuration.h"
+
+#include "./SSD16XX.h"
+
+namespace NicheGraphics::Drivers
+{
+class ZJY128296_029EAAMFGN : public SSD16XX
+{
+    // Display properties
+  private:
+    static constexpr uint32_t width = 128;
+    static constexpr uint32_t height = 296;
+    static constexpr UpdateTypes supported = (UpdateTypes)(FULL | FAST);
+
+  public:
+    ZJY128296_029EAAMFGN() : SSD16XX(width, height, supported) {}
+
+  protected:
+    void configScanning() override;
+    void configWaveform() override;
+    void configUpdateSequence() override;
+    void detachFromUpdate() override;
+};
+
+} // namespace NicheGraphics::Drivers
+
+#endif // MESHTASTIC_INCLUDE_NICHE_GRAPHICS