From d293d654a0200fef8bbb11e7bcd716e4b5699c89 Mon Sep 17 00:00:00 2001 From: Quency-D <55523105+Quency-D@users.noreply.github.com> Date: Sun, 22 Mar 2026 22:54:46 +0800 Subject: [PATCH] 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 --- boards/heltec_mesh_node_t096.json | 54 +++++ src/configuration.h | 11 + src/graphics/TFTDisplay.cpp | 18 +- src/mesh/LoRaFEMInterface.cpp | 4 +- .../heltec_mesh_node_t096/platformio.ini | 34 +++ .../heltec_mesh_node_t096/variant.cpp | 76 +++++++ .../nrf52840/heltec_mesh_node_t096/variant.h | 202 ++++++++++++++++++ 7 files changed, 389 insertions(+), 10 deletions(-) create mode 100644 boards/heltec_mesh_node_t096.json create mode 100644 variants/nrf52840/heltec_mesh_node_t096/platformio.ini create mode 100644 variants/nrf52840/heltec_mesh_node_t096/variant.cpp create mode 100644 variants/nrf52840/heltec_mesh_node_t096/variant.h diff --git a/boards/heltec_mesh_node_t096.json b/boards/heltec_mesh_node_t096.json new file mode 100644 index 000000000..1e417c5b4 --- /dev/null +++ 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" +} diff --git a/src/configuration.h b/src/configuration.h index 8936b9d98..11be86007 100644 --- a/src/configuration.h +++ b/src/configuration.h @@ -156,8 +156,19 @@ along with this program. If not, see . #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 diff --git a/src/graphics/TFTDisplay.cpp b/src/graphics/TFTDisplay.cpp index 1c2eb72d4..005ead292 100644 --- 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 diff --git a/src/mesh/LoRaFEMInterface.cpp b/src/mesh/LoRaFEMInterface.cpp index b05bb65ed..b44c7539b 100644 --- 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) diff --git a/variants/nrf52840/heltec_mesh_node_t096/platformio.ini b/variants/nrf52840/heltec_mesh_node_t096/platformio.ini new file mode 100644 index 000000000..e1bdd529d --- /dev/null +++ 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 diff --git a/variants/nrf52840/heltec_mesh_node_t096/variant.cpp b/variants/nrf52840/heltec_mesh_node_t096/variant.cpp new file mode 100644 index 000000000..29158e8ba --- /dev/null +++ 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); +} \ No newline at end of file diff --git a/variants/nrf52840/heltec_mesh_node_t096/variant.h b/variants/nrf52840/heltec_mesh_node_t096/variant.h new file mode 100644 index 000000000..04e22af26 --- /dev/null +++ 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