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variants/nrf52840/ELECROW-ThinkNode-M4/platformio.ini

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+; Elecrow ThinkNode M4 (nRF52840 + LR1110)
+[env:thinknode_m4]
+extends = nrf52840_base
+board = ThinkNode-M4
+board_check = true
+debug_tool = jlink
+
+build_flags = ${nrf52840_base.build_flags}
+  -Ivariants/nrf52840/ELECROW-ThinkNode-M4
+  -DELECROW_ThinkNode_M4
+
+build_src_filter = ${nrf52_base.build_src_filter} +<../variants/nrf52840/ELECROW-ThinkNode-M4>
+lib_deps =
+  ${nrf52840_base.lib_deps}
+  lewisxhe/PCF8563_Library@^1.0.1
+

variants/nrf52840/ELECROW-ThinkNode-M4/variant.cpp

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+/*
+  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()
+{
+#if (PIN_LED1 >= 0)
+    pinMode(PIN_LED1, OUTPUT);
+    ledOff(PIN_LED1);
+#endif
+#if (PIN_LED2 >= 0)
+    pinMode(PIN_LED2, OUTPUT);
+    ledOff(PIN_LED2);
+#endif
+#if (PIN_LED3 >= 0)
+    pinMode(PIN_LED3, OUTPUT);
+    ledOff(PIN_LED3);
+#endif
+}

variants/nrf52840/ELECROW-ThinkNode-M4/variant.h

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+/*
+ 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_ELECROW_THINKNODE_M4_
+#define _VARIANT_ELECROW_THINKNODE_M4_
+
+/** Master clock frequency */
+#define VARIANT_MCK (64000000ul)
+
+#define USE_LFXO // Board uses 32 kHz crystal for LF domain
+
+/*----------------------------------------------------------------------------
+ *        Headers
+ *----------------------------------------------------------------------------*/
+
+#include "WVariant.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif // __cplusplus
+
+// Number of pins defined in PinDescription array
+#define PINS_COUNT (48)
+#define NUM_DIGITAL_PINS (48)
+#define NUM_ANALOG_INPUTS (6)
+#define NUM_ANALOG_OUTPUTS (0)
+
+// LEDs
+#define PIN_LED1 (32 + 9) // P1.09, status LED (blue)
+#define PIN_LED2 -1
+#define PIN_LED3 -1
+
+#define LED_BUILTIN PIN_LED1
+#define LED_STATE_ON 0 // active-low LED drive
+
+// Buttons
+#define PIN_BUTTON1 (0 + 4) // P0.04 KEY input
+
+// USB / power detection
+#define EXT_PWR_DETECT (32 + 3) // P1.03 USB present sense
+
+// I2C bus
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA (32 + 0) // P1.00 SDA1
+#define PIN_WIRE_SCL (32 + 5) // P1.05 SCL1
+
+// Analog pins
+#define PIN_A0 (2) // P0.02
+#define BATTERY_PIN PIN_A0
+#define BATTERY_SENSE_SAMPLES 30
+#define ADC_RESOLUTION 14
+#define BATTERY_SENSE_RESOLUTION_BITS 12
+#define BATTERY_SENSE_RESOLUTION 4096.0
+#define ADC_MULTIPLIER (2.00F)
+#undef AREF_VOLTAGE
+#define AREF_VOLTAGE 3.0
+#define VBAT_AR_INTERNAL AR_INTERNAL_3_0
+
+// GPS interface (L76K)
+#define HAS_GPS 1
+#define GPS_L76K
+#define GPS_BAUDRATE 9600
+#define PIN_GPS_REINIT (0 + 3)   // P0.03 GPS_RST
+#define PIN_GPS_STANDBY (0 + 28) // P0.28 GPS_STANDBY
+#define PIN_GPS_EN (32 + 11)     // P1.11 GPS_EN
+#define GPS_EN_ACTIVE HIGH
+#define GPS_TX_PIN (32 + 12) // P1.12 GPS_TX -> MCU RX
+#define GPS_RX_PIN (32 + 14) // P1.14 GPS_RX -> MCU TX
+#define PIN_SERIAL1_RX GPS_TX_PIN
+#define PIN_SERIAL1_TX GPS_RX_PIN
+#define GPS_THREAD_INTERVAL 50
+
+// LoRa (LR1110) SPI bus
+#define SPI_INTERFACES_COUNT 1
+#define PIN_SPI_MISO (0 + 8) // P0.08
+#define PIN_SPI_MOSI (0 + 7) // P0.07
+#define PIN_SPI_SCK (0 + 6)  // P0.06
+#define PIN_SPI_NSS (0 + 27) // P0.27
+
+#define LORA_CS PIN_SPI_NSS
+#define LORA_SCK PIN_SPI_SCK
+#define LORA_MISO PIN_SPI_MISO
+#define LORA_MOSI PIN_SPI_MOSI
+#define LORA_RESET (32 + 8) // P1.08 LR_NRESET
+#define LORA_DIO1 (0 + 24)  // P0.24 LR_DIO1 / IRQ
+#define LORA_DIO2 (0 + 26)  // P0.26 LR_BUSY (treated as DIO2)
+
+#define USE_LR1110
+#define LR1110_IRQ_PIN LORA_DIO1
+#define LR1110_NRESET_PIN LORA_RESET
+#define LR1110_BUSY_PIN LORA_DIO2
+#define LR1110_SPI_NSS_PIN LORA_CS
+#define LR1110_SPI_SCK_PIN LORA_SCK
+#define LR1110_SPI_MOSI_PIN LORA_MOSI
+#define LR1110_SPI_MISO_PIN LORA_MISO
+#define LR11X0_DIO3_TCXO_VOLTAGE 3.3f
+#define LR11X0_DIO_AS_RF_SWITCH
+
+// Peripheral power control
+#define PIN_POWER_EN (0 + 11) // P0.11 PERIPH_EN
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif // _VARIANT_ELECROW_THINKNODE_M4_