add heltec_mesh_node_t096 board. (#9960)

* add heltec_mesh_node_t096 board. * Fixed the GPS reset pin comments. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Added compiles if NUM_PA_POINTS is not defined. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Correct the pin description. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Specify the version of the dependency library TFT_eSPI. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> * Adding fields missing from the .ini file. * Modify the screen SPI frequency to 40 MHz. Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> --------- Co-authored-by: Copilot <175728472+Copilot@users.noreply.github.com> Co-authored-by: Ben Meadors <benmmeadors@gmail.com>
2026-03-28 20:13:43 -04:00 · 2026-03-22 22:54:46 +08:00
parent 8384659608
commit d293d654a0
7 changed files with 389 additions and 10 deletions
--- a/boards/heltec_mesh_node_t096.json
+++ b/boards/heltec_mesh_node_t096.json
@@ -0,0 +1,54 @@
+{
+  "build": {
+    "arduino": {
+      "ldscript": "nrf52840_s140_v6.ld"
+    },
+    "core": "nRF5",
+    "cpu": "cortex-m4",
+    "extra_flags": "-DNRF52840_XXAA",
+    "f_cpu": "64000000L",
+    "hwids": [
+      ["0x239A", "0x4405"],
+      ["0x239A", "0x0029"],
+      ["0x239A", "0x002A"],
+      ["0x2886", "0x1667"]
+    ],
+    "usb_product": "HT-n5262G",
+    "mcu": "nrf52840",
+    "variant": "heltec_mesh_node_t096",
+    "variants_dir": "variants",
+    "bsp": {
+      "name": "adafruit"
+    },
+    "softdevice": {
+      "sd_flags": "-DS140",
+      "sd_name": "s140",
+      "sd_version": "6.1.1",
+      "sd_fwid": "0x00B6"
+    },
+    "bootloader": {
+      "settings_addr": "0xFF000"
+    }
+  },
+  "connectivity": ["bluetooth"],
+  "debug": {
+    "jlink_device": "nRF52840_xxAA",
+    "onboard_tools": ["jlink"],
+    "svd_path": "nrf52840.svd",
+    "openocd_target": "nrf52840-mdk-rs"
+  },
+  "frameworks": ["arduino"],
+  "name": "Heltec nrf (Adafruit BSP)",
+  "upload": {
+    "maximum_ram_size": 248832,
+    "maximum_size": 815104,
+    "speed": 115200,
+    "protocol": "nrfutil",
+    "protocols": ["jlink", "nrfjprog", "nrfutil", "stlink"],
+    "use_1200bps_touch": true,
+    "require_upload_port": true,
+    "wait_for_upload_port": true
+  },
+  "url": "https://heltec.org/",
+  "vendor": "Heltec"
+}
--- a/src/configuration.h
+++ b/src/configuration.h
@@ -156,8 +156,19 @@ along with this program.  If not, see <http://www.gnu.org/licenses/>.

 #ifdef USE_KCT8103L_PA
 // Power Amps are often non-linear, so we can use an array of values for the power curve
+#if defined(HELTEC_WIRELESS_TRACKER_V2)
 #define NUM_PA_POINTS 22
 #define TX_GAIN_LORA 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 12, 11, 10, 9, 8, 7
+#elif defined(HELTEC_MESH_NODE_T096)
+#define NUM_PA_POINTS 22
+#define TX_GAIN_LORA 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 14, 13, 13, 13, 12, 11, 10, 9, 8, 7
+#else
+// If a board enables USE_KCT8103L_PA but does not match a known variant and has
+// not already provided a PA curve, fail at compile time to avoid unsafe defaults.
+#if !defined(NUM_PA_POINTS) || !defined(TX_GAIN_LORA)
+#error "USE_KCT8103L_PA is defined, but no PA gain curve (NUM_PA_POINTS / TX_GAIN_LORA) is configured for this board."
+#endif
+#endif
 #endif

 #ifdef RAK13302
--- a/src/graphics/TFTDisplay.cpp
+++ b/src/graphics/TFTDisplay.cpp
@@ -1348,7 +1348,7 @@ void TFTDisplay::sendCommand(uint8_t com)
            digitalWrite(portduino_config.displayBacklight.pin, TFT_BACKLIGHT_ON);
 #elif defined(HACKADAY_COMMUNICATOR)
        tft->displayOn();
-#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE)
+#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096)
        tft->wakeup();
        tft->powerSaveOff();
 #endif
@@ -1359,7 +1359,7 @@ void TFTDisplay::sendCommand(uint8_t com)
 #ifdef UNPHONE
        unphone.backlight(true); // using unPhone library
 #endif
-#ifdef RAK14014
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
 #elif !defined(M5STACK) && !defined(ST7789_CS) &&                                                                                \
    !defined(HACKADAY_COMMUNICATOR) // T-Deck gets brightness set in Screen.cpp in the handleSetOn function
        tft->setBrightness(172);
@@ -1375,7 +1375,7 @@ void TFTDisplay::sendCommand(uint8_t com)
            digitalWrite(portduino_config.displayBacklight.pin, !TFT_BACKLIGHT_ON);
 #elif defined(HACKADAY_COMMUNICATOR)
        tft->displayOff();
-#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE)
+#elif !defined(RAK14014) && !defined(M5STACK) && !defined(UNPHONE) && !defined(HELTEC_MESH_NODE_T096)
        tft->sleep();
        tft->powerSaveOn();
 #endif
@@ -1386,7 +1386,7 @@ void TFTDisplay::sendCommand(uint8_t com)
 #ifdef UNPHONE
        unphone.backlight(false); // using unPhone library
 #endif
-#ifdef RAK14014
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
 #elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR)
        tft->setBrightness(0);
 #endif
@@ -1401,7 +1401,7 @@ void TFTDisplay::sendCommand(uint8_t com)

 void TFTDisplay::setDisplayBrightness(uint8_t _brightness)
 {
-#ifdef RAK14014
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
    // todo
 #elif !defined(HACKADAY_COMMUNICATOR)
    tft->setBrightness(_brightness);
@@ -1421,7 +1421,7 @@ bool TFTDisplay::hasTouch(void)
 {
 #ifdef RAK14014
    return true;
-#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR)
+#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096)
    return tft->touch() != nullptr;
 #else
    return false;
@@ -1440,7 +1440,7 @@ bool TFTDisplay::getTouch(int16_t *x, int16_t *y)
    } else {
        return false;
    }
-#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR)
+#elif !defined(M5STACK) && !defined(HACKADAY_COMMUNICATOR) && !defined(HELTEC_MESH_NODE_T096)
    return tft->getTouch(x, y);
 #else
    return false;
@@ -1457,7 +1457,7 @@ bool TFTDisplay::connect()
 {
    concurrency::LockGuard g(spiLock);
    LOG_INFO("Do TFT init");
-#ifdef RAK14014
+#if defined(RAK14014) || defined(HELTEC_MESH_NODE_T096)
    tft = new TFT_eSPI;
 #elif defined(HACKADAY_COMMUNICATOR)
    bus = new Arduino_ESP32SPI(TFT_DC, TFT_CS, 38 /* SCK */, 21 /* MOSI */, GFX_NOT_DEFINED /* MISO */, HSPI /* spi_num */);
@@ -1494,7 +1494,7 @@ bool TFTDisplay::connect()
    ft6336u.begin();
    pinMode(SCREEN_TOUCH_INT, INPUT_PULLUP);
    attachInterrupt(digitalPinToInterrupt(SCREEN_TOUCH_INT), rak14014_tpIntHandle, FALLING);
-#elif defined(T_DECK) || defined(PICOMPUTER_S3) || defined(CHATTER_2)
+#elif defined(T_DECK) || defined(PICOMPUTER_S3) || defined(CHATTER_2) || defined(HELTEC_MESH_NODE_T096)
    tft->setRotation(1); // T-Deck has the TFT in landscape
 #elif defined(T_WATCH_S3)
    tft->setRotation(2); // T-Watch S3 left-handed orientation
--- a/src/mesh/LoRaFEMInterface.cpp
+++ b/src/mesh/LoRaFEMInterface.cpp
@@ -173,14 +173,16 @@ void LoRaFEMInterface::setRxModeEnableWhenMCUSleep(void)
 #endif
 #elif defined(USE_KCT8103L_PA)
    digitalWrite(LORA_KCT8103L_PA_CSD, HIGH);
-    rtc_gpio_hold_en((gpio_num_t)LORA_KCT8103L_PA_CSD);
    if (lna_enabled) {
        digitalWrite(LORA_KCT8103L_PA_CTX, LOW);
    } else {
        digitalWrite(LORA_KCT8103L_PA_CTX, HIGH);
    }
+#if defined(ARCH_ESP32)
+    rtc_gpio_hold_en((gpio_num_t)LORA_KCT8103L_PA_CSD);
    rtc_gpio_hold_en((gpio_num_t)LORA_KCT8103L_PA_CTX);
 #endif
+#endif
 }

 void LoRaFEMInterface::setLNAEnable(bool enabled)
--- a/variants/nrf52840/heltec_mesh_node_t096/platformio.ini
+++ b/variants/nrf52840/heltec_mesh_node_t096/platformio.ini
@@ -0,0 +1,34 @@
+; First prototype nrf52840/sx1262 device
+[env:heltec-mesh-node-t096]
+custom_meshtastic_hw_model = 127
+custom_meshtastic_hw_model_slug = HELTEC_MESH_NODE_T096
+custom_meshtastic_architecture = nrf52840
+custom_meshtastic_actively_supported = true
+custom_meshtastic_support_level = 1
+custom_meshtastic_display_name = Heltec Mesh Node 096
+custom_meshtastic_images = heltec-mesh-node-t096.svg, heltec-mesh-node-t096-case.svg
+custom_meshtastic_tags = Heltec
+
+extends = nrf52840_base
+board = heltec_mesh_node_t096
+board_level = pr
+debug_tool = jlink
+
+build_flags = ${nrf52840_base.build_flags}
+  -Ivariants/nrf52840/heltec_mesh_node_t096
+  -D HAS_LORA_FEM=1
+  -D HELTEC_MESH_NODE_T096
+  -D USE_TFTDISPLAY=1
+  -D USER_SETUP_LOADED
+  -D ST7735_DRIVER
+  -D ST7735_REDTAB160x80
+  -D TFT_SPI_PORT=SPI1 
+  -D TFT_CS=ST7735_CS  ; Chip select control
+  -D TFT_DC=ST7735_RS  ; Data Command control pin
+  -D TFT_RST=ST7735_RESET  ; Reset pin
+  -D TFT_BL=ST7735_BL  ; LED back-light
+  -D TFT_BACKLIGHT_ON=LOW
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/heltec_mesh_node_t096>
+lib_deps = 
+  ${nrf52840_base.lib_deps}
+  bodmer/TFT_eSPI@2.5.43 ; renovate: datasource=platformio-registry depName=bodmer/TFT_eSPI
--- a/variants/nrf52840/heltec_mesh_node_t096/variant.cpp
+++ b/variants/nrf52840/heltec_mesh_node_t096/variant.cpp
@@ -0,0 +1,76 @@
+/*
+  Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+  Copyright (c) 2016 Sandeep Mistry All right reserved.
+  Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+  See the GNU Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#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()
+{
+    // LED1
+    pinMode(PIN_LED1, OUTPUT);
+    ledOff(PIN_LED1);
+}
+
+void variant_shutdown()
+{
+    nrf_gpio_cfg_default(VEXT_ENABLE);
+    nrf_gpio_cfg_default(ST7735_CS);
+    nrf_gpio_cfg_default(ST7735_RS);
+    nrf_gpio_cfg_default(ST7735_SDA);
+    nrf_gpio_cfg_default(ST7735_SCK);
+    nrf_gpio_cfg_default(ST7735_RESET);
+    nrf_gpio_cfg_default(ST7735_BL);
+
+    nrf_gpio_cfg_default(PIN_LED1);
+
+    // nrf_gpio_cfg_default(LORA_PA_POWER);
+    pinMode(LORA_PA_POWER, OUTPUT);
+    digitalWrite(LORA_PA_POWER, LOW);
+
+    nrf_gpio_cfg_default(LORA_KCT8103L_PA_CSD);
+    nrf_gpio_cfg_default(LORA_KCT8103L_PA_CTX);
+
+    pinMode(ADC_CTRL, OUTPUT);
+    digitalWrite(ADC_CTRL, LOW);
+
+    nrf_gpio_cfg_default(SX126X_CS);
+    nrf_gpio_cfg_default(SX126X_DIO1);
+    nrf_gpio_cfg_default(SX126X_BUSY);
+    nrf_gpio_cfg_default(SX126X_RESET);
+
+    nrf_gpio_cfg_default(PIN_SPI_MISO);
+    nrf_gpio_cfg_default(PIN_SPI_MOSI);
+    nrf_gpio_cfg_default(PIN_SPI_SCK);
+
+    nrf_gpio_cfg_default(PIN_GPS_PPS);
+    nrf_gpio_cfg_default(PIN_GPS_RESET);
+    nrf_gpio_cfg_default(PIN_GPS_EN);
+    nrf_gpio_cfg_default(GPS_TX_PIN);
+    nrf_gpio_cfg_default(GPS_RX_PIN);
+}
--- a/variants/nrf52840/heltec_mesh_node_t096/variant.h
+++ b/variants/nrf52840/heltec_mesh_node_t096/variant.h
@@ -0,0 +1,202 @@
+/*
+ Copyright (c) 2014-2015 Arduino LLC.  All right reserved.
+ Copyright (c) 2016 Sandeep Mistry All right reserved.
+ Copyright (c) 2018, Adafruit Industries (adafruit.com)
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 of the License, or (at your option) any later version.
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+ See the GNU Lesser General Public License for more details.
+ You should have received a copy of the GNU Lesser General Public
+ License along with this library; if not, write to the Free Software
+ Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+*/
+
+#ifndef _VARIANT_HELTEC_NRF_
+#define _VARIANT_HELTEC_NRF_
+/** Master clock frequency */
+#define VARIANT_MCK (64000000ul)
+
+#define USE_LFXO // Board uses 32khz crystal for LF
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+#define VEXT_ENABLE (0 + 26)
+#define VEXT_ON_VALUE HIGH
+
+// ST7735S TFT LCD
+#define ST7735_CS (0 + 22)
+#define ST7735_RS (0 + 15)  // DC
+#define ST7735_SDA (0 + 17) // MOSI
+#define ST7735_SCK (0 + 20)
+#define ST7735_RESET (0 + 13)
+#define ST7735_MISO -1
+#define ST7735_BUSY -1
+#define ST7735_BL (32 + 12)
+#define SPI_FREQUENCY 40000000
+#define SPI_READ_FREQUENCY 16000000
+#define SCREEN_ROTATE
+#define TFT_HEIGHT 160
+#define TFT_WIDTH 80
+#define TFT_OFFSET_X 24
+#define TFT_OFFSET_Y 0
+#define TFT_INVERT false
+#define SCREEN_TRANSITION_FRAMERATE 3 // fps
+#define DISPLAY_FORCE_SMALL_FONTS
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// LEDs
+#define PIN_LED1 (0 + 28) // green (confirmed on 1.0 board)
+#define LED_BLUE PIN_LED1 // fake for bluefruit library
+#define LED_GREEN PIN_LED1
+#define LED_STATE_ON 1 // State when LED is lit
+
+// #define HAS_NEOPIXEL                         // Enable the use of neopixels
+// #define NEOPIXEL_COUNT 2                     // How many neopixels are connected
+// #define NEOPIXEL_DATA 14                     // gpio pin used to send data to the neopixels
+// #define NEOPIXEL_TYPE (NEO_GRB + NEO_KHZ800) // type of neopixels in use
+
+/*
+ * Buttons
+ */
+#define PIN_BUTTON1 (32 + 10)
+// #define PIN_BUTTON2 (0 + 18)      // 0.18 is labeled on the board as RESET but we configure it in the bootloader as a regular
+// GPIO
+
+/*
+No longer populated on PCB
+*/
+#define PIN_SERIAL2_RX (0 + 9)
+#define PIN_SERIAL2_TX (0 + 10)
+
+/*
+ * I2C
+ */
+
+#define WIRE_INTERFACES_COUNT 2
+
+// I2C bus 0
+#define PIN_WIRE_SDA (0 + 7) // SDA
+#define PIN_WIRE_SCL (0 + 8) // SCL
+
+// I2C bus 1
+#define PIN_WIRE1_SDA (0 + 4)  // SDA (secondary bus)
+#define PIN_WIRE1_SCL (0 + 27) // SCL (secondary bus)
+
+/*
+ * Lora radio
+ */
+
+#define USE_SX1262
+#define SX126X_CS (0 + 5) // FIXME - we really should define LORA_CS instead
+#define LORA_CS (0 + 5)
+#define SX126X_DIO1 (0 + 21)
+#define SX126X_BUSY (0 + 19)
+#define SX126X_RESET (0 + 16)
+#define SX126X_DIO2_AS_RF_SWITCH
+#define SX126X_DIO3_TCXO_VOLTAGE 1.8
+
+// ---- KCT8103L RF FRONT END CONFIGURATION ----
+// The heltec_wireless_tracker_v2 uses a KCT8103L FEM chip with integrated PA and LNA
+// RF path: SX1262 -> Pi attenuator -> KCT8103L PA -> Antenna
+// Control logic (from KCT8103L datasheet):
+//   Transmit PA:     CSD=1, CTX=1, CPS=1
+//   Receive LNA:     CSD=1, CTX=0, CPS=X  (21dB gain, 1.9dB NF)
+//   Receive bypass:  CSD=1, CTX=1, CPS=0
+//   Shutdown:        CSD=0, CTX=X, CPS=X
+// Pin mapping:
+//   CPS (pin 5)  -> SX1262 DIO2: TX/RX path select (automatic via SX126X_DIO2_AS_RF_SWITCH)
+//   CSD (pin 4)  -> GPIO12: Chip enable (HIGH=on, LOW=shutdown)
+//   CTX (pin 6)  -> GPIO41: Switch between Receive LNA Mode and Receive Bypass Mode. (HIGH=RX bypass, LOW=RX LNA)
+//   VCC0/VCC1    -> Vfem via U3 LDO, controlled by GPIO30
+// KCT8103L FEM: TX/RX path switching is handled by DIO2 -> CPS pin (via SX126X_DIO2_AS_RF_SWITCH)
+
+#define USE_KCT8103L_PA
+#define LORA_PA_POWER (0 + 30)        // VFEM_Ctrl - KCT8103L LDO power enable
+#define LORA_KCT8103L_PA_CSD (0 + 12) // CSD - KCT8103L chip enable (HIGH=on)
+#define LORA_KCT8103L_PA_CTX                                                                                                     \
+    (32 + 9) // CTX - Switch between Receive LNA Mode and Receive Bypass Mode. (HIGH=RX bypass, LOW=RX LNA)
+
+/*
+ * SPI Interfaces
+ */
+#define SPI_INTERFACES_COUNT 2
+
+// For LORA, spi 0
+#define PIN_SPI_MISO (0 + 14)
+#define PIN_SPI_MOSI (0 + 11)
+#define PIN_SPI_SCK (32 + 8)
+
+#define PIN_SPI1_MISO                                                                                                            \
+    ST7735_MISO // FIXME not really needed, but for now the SPI code requires something to be defined, pick an used GPIO
+#define PIN_SPI1_MOSI ST7735_SDA
+#define PIN_SPI1_SCK ST7735_SCK
+
+/*
+ * GPS pins
+ */
+#define GPS_UC6580
+#define GPS_BAUDRATE 115200
+#define PIN_GPS_RESET (32 + 14) // An output to reset UC6580 GPS. As per datasheet, low for > 100ms will reset the UC6580
+#define GPS_RESET_MODE LOW
+#define PIN_GPS_EN (0 + 6)
+#define GPS_EN_ACTIVE LOW
+#define PERIPHERAL_WARMUP_MS 1000 // Make sure I2C QuickLink has stable power before continuing
+#define PIN_GPS_PPS (32 + 11)
+#define GPS_TX_PIN (0 + 25) // This is for bits going TOWARDS the CPU
+#define GPS_RX_PIN (0 + 23) // This is for bits going TOWARDS the GPS
+
+#define GPS_THREAD_INTERVAL 50
+
+#define PIN_SERIAL1_RX GPS_RX_PIN
+#define PIN_SERIAL1_TX GPS_TX_PIN
+
+#define ADC_CTRL (32 + 15)
+#define ADC_CTRL_ENABLED HIGH
+#define BATTERY_PIN (0 + 3)
+#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 (4.916F)
+
+// rf52840 AIN1 = Pin 3
+#define BATTERY_LPCOMP_INPUT NRF_LPCOMP_INPUT_1
+
+// We have AIN1 with a VBAT divider so AIN1 = VBAT * (100/490)
+// We have the device going deep sleep under 3.1V, which is AIN1 = 0.63V
+// So we can wake up when VBAT>=VDD is restored to 3.3V, where AIN2 = 0.67V
+// Ratio 0.67/3.3 = 0.20, so we can pick a bit higher, 2/8 VDD, which means
+// VBAT=4.04V
+#define BATTERY_LPCOMP_THRESHOLD NRF_LPCOMP_REF_SUPPLY_2_8
+
+#define HAS_RTC 0
+#ifdef __cplusplus
+}
+#endif
+
+/*----------------------------------------------------------------------------
+ *        Arduino objects - C++ only
+ *----------------------------------------------------------------------------*/
+
+#endif