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feat: add support for GAT-IOT GAT562 Mesh Trial Tracker (nRF52840)
- Added new board definition: `boards/gat562_mesh_trial_tracker.json` for the GAT562 Mesh Trial Tracker, based on the nRF52840 architecture. - Created `variants/gat562_mesh_trial_tracker/` directory with `platformio.ini` environment for building firmware for this board. - Board configuration is based on the RAK4631, as the GAT562 uses the same GPIO and SSD1306 display setup. - Updated build flags and library dependencies for the new board. This change enables Meshtastic firmware development and deployment for the GAT-IOT GAT562 Mesh Trial Tracker, expanding hardware compatibility.
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‎boards/gat562_mesh_trial_tracker.json

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{
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"build": {
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"arduino": {
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"ldscript": "nrf52840_s140_v6.ld"
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},
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"core": "nRF5",
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"cpu": "cortex-m4",
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"extra_flags": "-DARDUINO_NRF52840_FEATHER -DNRF52840_XXAA",
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"f_cpu": "64000000L",
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"hwids": [
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["0x239A", "0x8029"],
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["0x239A", "0x0029"],
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["0x239A", "0x002A"],
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["0x239A", "0x802A"]
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],
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"usb_product": "GAT562 Mesh Trial Tracker",
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"mcu": "nrf52840",
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"variant": "gat562_mesh_trial_tracker",
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"bsp": {
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"name": "adafruit"
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},
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"softdevice": {
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"sd_flags": "-DS140",
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"sd_name": "s140",
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"sd_version": "6.1.1",
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"sd_fwid": "0x00B6"
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},
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"bootloader": {
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"settings_addr": "0xFF000"
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}
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},
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"connectivity": ["bluetooth"],
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"debug": {
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"jlink_device": "nRF52840_xxAA",
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"svd_path": "nrf52840.svd",
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"openocd_target": "nrf52840-mdk-rs"
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},
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"frameworks": ["arduino", "freertos"],
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"name": "GAT562 Mesh Trial Tracker",
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"upload": {
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"maximum_ram_size": 248832,
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"maximum_size": 815104,
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"speed": 115200,
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"protocol": "nrfutil",
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"protocols": ["jlink", "nrfjprog", "nrfutil", "stlink"],
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"use_1200bps_touch": true,
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"require_upload_port": true,
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"wait_for_upload_port": true
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},
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"url": "http://www.gat-iot.com/",
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"vendor": "GAT-IOT"
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}

‎variants/gat562_mesh_trial_tracker/platformio.ini

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; The very slick RAK wireless RAK 4631 / 4630 board - Unified firmware for 5005/19003, with or without OLED RAK 1921
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[env:gat562_mesh_trial_tracker]
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extends = nrf52840_base
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board = gat562_mesh_trial_tracker
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board_check = true
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build_flags = ${nrf52840_base.build_flags} -Ivariants/gat562_mesh_trial_tracker -D GAT562_MESH_TRIAL_TRACKER
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-L "${platformio.libdeps_dir}/${this.__env__}/bsec2/src/cortex-m4/fpv4-sp-d16-hard"
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-DGPS_POWER_TOGGLE ; comment this line to disable triple press function on the user button to turn off gps entirely.
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-DRADIOLIB_EXCLUDE_SX128X=1
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-DRADIOLIB_EXCLUDE_SX127X=1
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-DRADIOLIB_EXCLUDE_LR11X0=1
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build_src_filter = ${nrf52_base.build_src_filter} +<../variants/gat562_mesh_trial_tracker>
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lib_deps =
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${nrf52840_base.lib_deps}

‎variants/gat562_mesh_trial_tracker/variant.cpp

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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#include "variant.h"
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#include "nrf.h"
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#include "wiring_constants.h"
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#include "wiring_digital.h"
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const uint32_t g_ADigitalPinMap[] = {
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// P0
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0, 1, 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,
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// P1
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32, 33, 34, 35, 36, 37, 38, 39, 40, 41, 42, 43, 44, 45, 46, 47};
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void initVariant()
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{
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// LED1 & LED2
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pinMode(PIN_LED1, OUTPUT);
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ledOff(PIN_LED1);
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pinMode(PIN_LED2, OUTPUT);
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ledOff(PIN_LED2);
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// 3V3 Power Rail
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pinMode(PIN_3V3_EN, OUTPUT);
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digitalWrite(PIN_3V3_EN, HIGH);
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}

‎variants/gat562_mesh_trial_tracker/variant.h

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/*
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Copyright (c) 2014-2015 Arduino LLC. All right reserved.
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Copyright (c) 2016 Sandeep Mistry All right reserved.
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Copyright (c) 2018, Adafruit Industries (adafruit.com)
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This library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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This library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with this library; if not, write to the Free Software
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Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _VARIANT_GAT562_MESH_TRIAL_TRACKER_
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#define _VARIANT_GAT562_MESH_TRIAL_TRACKER_
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#define GAT562_MESH_TRIAL_TRACKER
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/** Master clock frequency */
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#define VARIANT_MCK (64000000ul)
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#define USE_LFXO // Board uses 32khz crystal for LF
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// define USE_LFRC // Board uses RC for LF
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/*----------------------------------------------------------------------------
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* Headers
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*----------------------------------------------------------------------------*/
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#include "WVariant.h"
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#ifdef __cplusplus
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extern "C" {
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#endif // __cplusplus
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// Number of pins defined in PinDescription array
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#define PINS_COUNT (48)
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#define NUM_DIGITAL_PINS (48)
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#define NUM_ANALOG_INPUTS (6)
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#define NUM_ANALOG_OUTPUTS (0)
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// LEDs
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#define PIN_LED1 (35)
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#define PIN_LED2 (36)
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#define LED_BUILTIN PIN_LED1
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#define LED_CONN PIN_LED2
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#define LED_GREEN PIN_LED1
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#define LED_BLUE PIN_LED2
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#define LED_STATE_ON 1 // State when LED is litted
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/*
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* Buttons
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*/
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#define PIN_BUTTON1 9 // Pin for button on E-ink button module or IO expansion
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#define BUTTON_NEED_PULLUP
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#define PIN_BUTTON2 12
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#define PIN_BUTTON3 24
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#define PIN_BUTTON4 25
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/*
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* Analog pins
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*/
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#define PIN_A0 (5)
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#define PIN_A1 (31)
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#define PIN_A2 (28)
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#define PIN_A3 (29)
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#define PIN_A4 (30)
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#define PIN_A5 (31)
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#define PIN_A6 (0xff)
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#define PIN_A7 (0xff)
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static const uint8_t A0 = PIN_A0;
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static const uint8_t A1 = PIN_A1;
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static const uint8_t A2 = PIN_A2;
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static const uint8_t A3 = PIN_A3;
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static const uint8_t A4 = PIN_A4;
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static const uint8_t A5 = PIN_A5;
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static const uint8_t A6 = PIN_A6;
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static const uint8_t A7 = PIN_A7;
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#define ADC_RESOLUTION 14
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// Other pins
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#define PIN_AREF (2)
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#define PIN_NFC1 (9)
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#define PIN_NFC2 (10)
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static const uint8_t AREF = PIN_AREF;
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/*
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* Serial interfaces
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*/
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#define PIN_SERIAL1_RX (15)
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#define PIN_SERIAL1_TX (16)
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// Connected to Jlink CDC
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#define PIN_SERIAL2_RX (8)
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#define PIN_SERIAL2_TX (6)
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/*
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* SPI Interfaces
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*/
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#define SPI_INTERFACES_COUNT 2
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#define PIN_SPI_MISO (45)
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#define PIN_SPI_MOSI (44)
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#define PIN_SPI_SCK (43)
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#define PIN_SPI1_MISO (29) // (0 + 29)
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#define PIN_SPI1_MOSI (30) // (0 + 30)
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#define PIN_SPI1_SCK (3) // (0 + 3)
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static const uint8_t SS = 42;
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static const uint8_t MOSI = PIN_SPI_MOSI;
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static const uint8_t MISO = PIN_SPI_MISO;
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static const uint8_t SCK = PIN_SPI_SCK;
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/*
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* eink display pins
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*/
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// #define PIN_EINK_CS (0 + 26)
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// #define PIN_EINK_BUSY (0 + 4)
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// #define PIN_EINK_DC (0 + 17)
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// #define PIN_EINK_RES (-1)
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// #define PIN_EINK_SCLK (0 + 3)
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// #define PIN_EINK_MOSI (0 + 30) // also called SDI
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// #define USE_EINK
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// Display - OLED connected via I2C
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#define HAS_SCREEN 1
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#define USE_SSD1306
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// RAKRGB
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// #define HAS_NCP5623
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/*
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* Wire Interfaces
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*/
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#define WIRE_INTERFACES_COUNT 1
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#define PIN_WIRE_SDA (13)
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#define PIN_WIRE_SCL (14)
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// QSPI Pins
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#define PIN_QSPI_SCK 3
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#define PIN_QSPI_CS 26
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#define PIN_QSPI_IO0 30
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#define PIN_QSPI_IO1 29
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#define PIN_QSPI_IO2 28
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#define PIN_QSPI_IO3 2
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// On-board QSPI Flash
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#define EXTERNAL_FLASH_DEVICES IS25LP080D
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#define EXTERNAL_FLASH_USE_QSPI
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/* @note RAK5005-O GPIO mapping to RAK4631 GPIO ports
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RAK5005-O <-> nRF52840
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IO1 <-> P0.17 (Arduino GPIO number 17)
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IO2 <-> P1.02 (Arduino GPIO number 34)
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IO3 <-> P0.21 (Arduino GPIO number 21)
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IO4 <-> P0.04 (Arduino GPIO number 4)
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IO5 <-> P0.09 (Arduino GPIO number 9)
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IO6 <-> P0.10 (Arduino GPIO number 10)
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IO7 <-> P0.28 (Arduino GPIO number 28)
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SW1 <-> P0.01 (Arduino GPIO number 1)
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A0 <-> P0.04/AIN2 (Arduino Analog A2
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A1 <-> P0.31/AIN7 (Arduino Analog A7
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SPI_CS <-> P0.26 (Arduino GPIO number 26)
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*/
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// RAK4630 LoRa module
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/* Setup of the SX1262 LoRa module ( https://docs.rakwireless.com/Product-Categories/WisBlock/RAK4631/Datasheet/ )
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P1.10 NSS SPI NSS (Arduino GPIO number 42)
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P1.11 SCK SPI CLK (Arduino GPIO number 43)
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P1.12 MOSI SPI MOSI (Arduino GPIO number 44)
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P1.13 MISO SPI MISO (Arduino GPIO number 45)
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P1.14 BUSY BUSY signal (Arduino GPIO number 46)
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P1.15 DIO1 DIO1 event interrupt (Arduino GPIO number 47)
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P1.06 NRESET NRESET manual reset of the SX1262 (Arduino GPIO number 38)
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Important for successful SX1262 initialization:
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* Setup DIO2 to control the antenna switch
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* Setup DIO3 to control the TCXO power supply
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* Setup the SX1262 to use it's DCDC regulator and not the LDO
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* RAK4630 schematics show GPIO P1.07 connected to the antenna switch, but it should not be initialized, as DIO2 will do the
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control of the antenna switch
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SO GPIO 39/TXEN MAY NOT BE DEFINED FOR SUCCESSFUL OPERATION OF THE SX1262 - TG
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*/
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// configure the SET pin on the RAK12039 sensor board to disable the sensor while not reading
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// air quality telemetry. PIN_NFC2 doesn't seem to be used anywhere else in the codebase, but if
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// you're having problems with your node behaving weirdly when a RAK12039 board isn't connected,
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// try disabling this.
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// #define PMSA003I_ENABLE_PIN PIN_NFC2
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// #define DETECTION_SENSOR_EN 4
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#define USE_SX1262
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#define SX126X_CS (42)
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#define SX126X_DIO1 (47)
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#define SX126X_BUSY (46)
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#define SX126X_RESET (38)
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// #define SX126X_TXEN (39)
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// #define SX126X_RXEN (37)
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#define SX126X_POWER_EN (37)
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// DIO2 controlls an antenna switch and the TCXO voltage is controlled by DIO3
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#define SX126X_DIO2_AS_RF_SWITCH
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#define SX126X_DIO3_TCXO_VOLTAGE 1.8
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// Testing USB detection
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#define NRF_APM
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// enables 3.3V periphery like GPS or IO Module
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// Do not toggle this for GPS power savings
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#define PIN_3V3_EN (34)
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// RAK1910 GPS module
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// If using the wisblock GPS module and pluged into Port A on WisBlock base
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// IO1 is hooked to PPS (pin 12 on header) = gpio 17
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// IO2 is hooked to GPS RESET = gpio 34, but it can not be used to this because IO2 is ALSO used to control 3V3_S power (1 is on).
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// Therefore must be 1 to keep peripherals powered
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// Power is on the controllable 3V3_S rail
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// #define PIN_GPS_RESET (34)
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// #define PIN_GPS_EN PIN_3V3_EN
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#define PIN_GPS_PPS (17) // Pulse per second input from the GPS
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#define GPS_RX_PIN PIN_SERIAL1_RX
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#define GPS_TX_PIN PIN_SERIAL1_TX
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// Define pin to enable GPS toggle (set GPIO to LOW) via user button triple press
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// RAK12002 RTC Module
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// #define RV3028_RTC (uint8_t)0b1010010
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// RAK18001 Buzzer in Slot C
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// #define PIN_BUZZER 21 // IO3 is PWM2
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// NEW: set this via protobuf instead!
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// Battery
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// The battery sense is hooked to pin A0 (5)
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#define BATTERY_PIN PIN_A0
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// and has 12 bit resolution
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#define BATTERY_SENSE_RESOLUTION_BITS 12
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#define BATTERY_SENSE_RESOLUTION 4096.0
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#undef AREF_VOLTAGE
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#define AREF_VOLTAGE 3.0
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#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
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#define ADC_MULTIPLIER 1.73
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// #define HAS_RTC 1
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// #define HAS_ETHERNET 1
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// #define RAK_4631 1
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// #define PIN_ETHERNET_RESET 21
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// #define PIN_ETHERNET_SS PIN_EINK_CS
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// #define ETH_SPI_PORT SPI1
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// #define AQ_SET_PIN 10
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#ifdef __cplusplus
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}
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#endif
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/*----------------------------------------------------------------------------
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* Arduino objects - C++ only
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*----------------------------------------------------------------------------*/
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#endif

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