Add support for LilyGo T-Echo Plus (#9149)

* Add t-echo plus support

* T-Echo plus hw model

* Cruft

* Fix

* Added InkHUD style touch backlight control

variants/esp32s3/t-watch-s3/variant.h

@@ -20,6 +20,8 @@
 #define SCREEN_TRANSITION_FRAMERATE 5 // fps
 #define USE_TFTDISPLAY 1
 
+#define HAS_DRV2605 1
+
 #define HAS_TOUCHSCREEN 1
 #define SCREEN_TOUCH_INT 16
 #define SCREEN_TOUCH_USE_I2C1

variants/esp32s3/tlora-pager/variant.h

@@ -26,6 +26,8 @@
 #define I2C_SDA SDA
 #define I2C_SCL SCL
 
+#define HAS_DRV2605 1
+
 #define USE_POWERSAVE
 #define SLEEP_TIME 120
 

variants/nrf52840/t-echo-plus/nicheGraphics.h

@@ -0,0 +1,70 @@
+#pragma once
+
+#include "configuration.h"
+
+#ifdef MESHTASTIC_INCLUDE_NICHE_GRAPHICS
+
+#include "graphics/niche/Drivers/Backlight/LatchingBacklight.h"
+#include "graphics/niche/Drivers/EInk/GDEY0154D67.h"
+#include "graphics/niche/InkHUD/Applets/User/AllMessage/AllMessageApplet.h"
+#include "graphics/niche/InkHUD/Applets/User/DM/DMApplet.h"
+#include "graphics/niche/InkHUD/Applets/User/Heard/HeardApplet.h"
+#include "graphics/niche/InkHUD/Applets/User/Positions/PositionsApplet.h"
+#include "graphics/niche/InkHUD/Applets/User/RecentsList/RecentsListApplet.h"
+#include "graphics/niche/InkHUD/Applets/User/ThreadedMessage/ThreadedMessageApplet.h"
+#include "graphics/niche/InkHUD/InkHUD.h"
+#include "graphics/niche/Inputs/TwoButton.h"
+
+void setupNicheGraphics()
+{
+    using namespace NicheGraphics;
+
+    SPI1.begin();
+
+    Drivers::EInk *driver = new Drivers::GDEY0154D67;
+    driver->begin(&SPI1, PIN_EINK_DC, PIN_EINK_CS, PIN_EINK_BUSY, PIN_EINK_RES);
+
+    InkHUD::InkHUD *inkhud = InkHUD::InkHUD::getInstance();
+    inkhud->setDriver(driver);
+    inkhud->setDisplayResilience(20, 1.5);
+    InkHUD::Applet::fontLarge = FREESANS_12PT_WIN1252;
+    InkHUD::Applet::fontMedium = FREESANS_9PT_WIN1252;
+    InkHUD::Applet::fontSmall = FREESANS_6PT_WIN1252;
+    inkhud->persistence->settings.userTiles.maxCount = 2;
+    inkhud->persistence->settings.rotation = 3;
+    inkhud->persistence->settings.optionalFeatures.batteryIcon = true;
+    inkhud->persistence->settings.optionalMenuItems.backlight = true;
+
+    Drivers::LatchingBacklight *backlight = Drivers::LatchingBacklight::getInstance();
+    backlight->setPin(PIN_EINK_BL);
+
+    inkhud->addApplet("All Messages", new InkHUD::AllMessageApplet, true, true);
+    inkhud->addApplet("DMs", new InkHUD::DMApplet);
+    inkhud->addApplet("Channel 0", new InkHUD::ThreadedMessageApplet(0));
+    inkhud->addApplet("Channel 1", new InkHUD::ThreadedMessageApplet(1));
+    inkhud->addApplet("Positions", new InkHUD::PositionsApplet, true);
+    inkhud->addApplet("Recents List", new InkHUD::RecentsListApplet);
+    inkhud->addApplet("Heard", new InkHUD::HeardApplet, true, false, 0);
+
+    inkhud->begin();
+
+    Inputs::TwoButton *buttons = Inputs::TwoButton::getInstance();
+
+    buttons->setWiring(0, Inputs::TwoButton::getUserButtonPin());
+    buttons->setTiming(0, 75, 500);
+    buttons->setHandlerShortPress(0, [inkhud]() { inkhud->shortpress(); });
+    buttons->setHandlerLongPress(0, [inkhud]() { inkhud->longpress(); });
+
+    buttons->setWiring(1, PIN_BUTTON_TOUCH);
+    buttons->setTiming(1, 50, 5000);
+    buttons->setHandlerDown(1, [inkhud, backlight]() {
+        backlight->peek();
+        inkhud->persistence->settings.optionalMenuItems.backlight = false;
+    });
+    buttons->setHandlerLongPress(1, [backlight]() { backlight->latch(); });
+    buttons->setHandlerShortPress(1, [backlight]() { backlight->off(); });
+
+    buttons->start();
+}
+
+#endif

variants/nrf52840/t-echo-plus/platformio.ini

@@ -0,0 +1,26 @@
+[env:t-echo-plus]
+extends = nrf52840_base
+board = t-echo
+board_level = pr
+board_check = true
+debug_tool = jlink
+
+build_flags = ${nrf52840_base.build_flags}
+  -DTTGO_T_ECHO_PLUS
+  -Ivariants/nrf52840/t-echo-plus
+  -DEINK_DISPLAY_MODEL=GxEPD2_154_D67
+  -DEINK_WIDTH=200
+  -DEINK_HEIGHT=200
+  -DUSE_EINK
+  -DUSE_EINK_DYNAMICDISPLAY            ; Enable Dynamic EInk
+  -DEINK_LIMIT_FASTREFRESH=20          ; How many consecutive fast-refreshes are permitted
+  -DEINK_BACKGROUND_USES_FAST          ; (Optional) Use FAST refresh for both BACKGROUND and RESPONSIVE, until a limit is reached.
+  -DI2C_NO_RESCAN
+
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/t-echo-plus>
+
+lib_deps =
+  ${nrf52840_base.lib_deps}
+  https://github.com/meshtastic/GxEPD2/archive/55f618961db45a23eff0233546430f1e5a80f63a.zip
+  lewisxhe/PCF8563_Library@^1.0.1
+  adafruit/Adafruit DRV2605 Library@1.2.4

variants/nrf52840/t-echo-plus/variant.cpp

@@ -0,0 +1,24 @@
+#include "variant.h"
+#include "nrf.h"
+#include "wiring_constants.h"
+#include "wiring_digital.h"
+
+const uint32_t g_ADigitalPinMap[] = {
+    // P0 - pins 0 and 1 are hardwired for xtal and should never be enabled
+    0xff, 0xff, 2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19, 20, 21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31,
+
+    // P1
+    32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
+
+void initVariant()
+{
+    // LEDs (if populated)
+    pinMode(PIN_LED1, OUTPUT);
+    ledOff(PIN_LED1);
+
+    pinMode(PIN_LED2, OUTPUT);
+    ledOff(PIN_LED2);
+
+    pinMode(PIN_LED3, OUTPUT);
+    ledOff(PIN_LED3);
+}

variants/nrf52840/t-echo-plus/variant.h

@@ -0,0 +1,145 @@
+#ifndef _VARIANT_T_ECHO_PLUS_
+#define _VARIANT_T_ECHO_PLUS_
+
+#define VARIANT_MCK (64000000ul)
+#define USE_LFXO
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+// Pin counts
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// LEDs (not documented on pinmap; keep defaults for compatibility)
+#define PIN_LED1 (0 + 14)
+#define PIN_LED2 (0 + 15)
+#define PIN_LED3 (0 + 13)
+
+#define LED_RED PIN_LED3
+#define LED_BLUE PIN_LED1
+#define LED_GREEN PIN_LED2
+
+#define LED_BUILTIN LED_BLUE
+#define LED_CONN LED_GREEN
+
+#define LED_STATE_ON 0
+
+// Buttons / touch
+#define PIN_BUTTON1 (32 + 10)
+#define BUTTON_ACTIVE_LOW true
+#define BUTTON_ACTIVE_PULLUP true
+#define PIN_BUTTON2 (0 + 18)      // reset-labelled but usable as GPIO
+#define PIN_BUTTON_TOUCH (0 + 11) // capacitive touch
+#define BUTTON_TOUCH_ACTIVE_LOW true
+#define BUTTON_TOUCH_ACTIVE_PULLUP true
+
+#define BUTTON_CLICK_MS 400
+#define BUTTON_TOUCH_MS 200
+
+// Analog
+#define PIN_A0 (4)
+#define BATTERY_PIN PIN_A0
+static const uint8_t A0 = PIN_A0;
+#define ADC_RESOLUTION 14
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+#define BATTERY_SENSE_RESOLUTION 4096.0
+#undef AREF_VOLTAGE
+#define AREF_VOLTAGE 3.0
+#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
+#define ADC_MULTIPLIER (2.0F)
+
+// NFC
+#define PIN_NFC1 (9)
+#define PIN_NFC2 (10)
+
+// I2C (IMU BHI260AP, RTC, etc.)
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA (0 + 26)
+#define PIN_WIRE_SCL (0 + 27)
+#define HAS_BHI260AP
+
+#define TP_SER_IO (0 + 11)
+
+// RTC interrupt
+#define PIN_RTC_INT (0 + 16)
+
+// QSPI flash
+#define PIN_QSPI_SCK (32 + 14)
+#define PIN_QSPI_CS (32 + 15)
+#define PIN_QSPI_IO0 (32 + 12)
+#define PIN_QSPI_IO1 (32 + 13)
+#define PIN_QSPI_IO2 (0 + 7)
+#define PIN_QSPI_IO3 (0 + 5)
+
+// On-board QSPI Flash
+#define EXTERNAL_FLASH_DEVICES MX25R1635F
+#define EXTERNAL_FLASH_USE_QSPI
+
+// LoRa SX1262
+#define USE_SX1262
+#define USE_SX1268
+#define SX126X_CS (0 + 24)
+#define SX126X_DIO1 (0 + 20)
+#define SX1262_DIO3 (0 + 21)
+#define SX126X_BUSY (0 + 17)
+#define SX126X_RESET (0 + 25)
+#define SX126X_DIO2_AS_RF_SWITCH
+#define SX126X_DIO3_TCXO_VOLTAGE 1.8
+#define TCXO_OPTIONAL
+
+#define SPI_INTERFACES_COUNT 2
+
+#define PIN_SPI_MISO (0 + 23)
+#define PIN_SPI_MOSI (0 + 22)
+#define PIN_SPI_SCK (0 + 19)
+
+// E-paper (1.54" per pinmap)
+// Alias PIN_EINK_EN to keep common eink power control code working
+#define PIN_EINK_BL (32 + 11) // backlight / panel power switch
+#define PIN_EINK_EN PIN_EINK_BL
+#define PIN_EINK_CS (0 + 30)
+#define PIN_EINK_BUSY (0 + 3)
+#define PIN_EINK_DC (0 + 28)
+#define PIN_EINK_RES (0 + 2)
+#define PIN_EINK_SCLK (0 + 31)
+#define PIN_EINK_MOSI (0 + 29) // also called SDI
+
+// Power control
+#define PIN_POWER_EN (0 + 12)
+
+#define PIN_SPI1_MISO (32 + 7) // Placeholder MISO; keep off QSPI pins to avoid contention
+#define PIN_SPI1_MOSI PIN_EINK_MOSI
+#define PIN_SPI1_SCK PIN_EINK_SCLK
+
+// GPS (TX/RX/Wake/Reset/PPS per pinmap)
+#define GPS_L76K
+#define PIN_GPS_REINIT (32 + 5)  // Reset
+#define PIN_GPS_STANDBY (32 + 2) // Wake
+#define PIN_GPS_PPS (32 + 4)
+#define GPS_TX_PIN (32 + 8)
+#define GPS_RX_PIN (32 + 9)
+#define GPS_THREAD_INTERVAL 50
+
+#define PIN_SERIAL1_RX GPS_RX_PIN
+#define PIN_SERIAL1_TX GPS_TX_PIN
+
+// Sensors / accessories
+#define PIN_BUZZER (0 + 6)
+#define PIN_DRV_EN (0 + 8)
+
+#define HAS_DRV2605 1
+
+// Battery / ADC already defined above
+#define HAS_RTC 1
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif