Add Simpson board support

variants/simpson/SimpsonKeypad.cpp

@@ -0,0 +1,70 @@
+#include "SimpsonKeypad.h"
+
+#include <Wire.h>
+
+namespace {
+char control_keymap[19] = {
+  SIMPSON_KEY_CANCEL, SIMPSON_KEY_UP, 0, SIMPSON_KEY_BLUETOOTH,
+  SIMPSON_KEY_LEFT, SIMPSON_KEY_ENTER, SIMPSON_KEY_RIGHT, SIMPSON_KEY_BRIGHTNESS_UP,
+  SIMPSON_KEY_SYMBOLS, SIMPSON_KEY_DOWN, 0, SIMPSON_KEY_BRIGHTNESS_DOWN,
+  SIMPSON_KEY_MESSAGES, 0, SIMPSON_KEY_FN, SIMPSON_KEY_GPS, 0, 0, 0
+};
+
+char alphabet_keymap[19] = {
+  ',', 'A', 'D', SIMPSON_KEY_BLUETOOTH,
+  'G', 'J', 'M', SIMPSON_KEY_BRIGHTNESS_UP,
+  'P', 'T', 'W', SIMPSON_KEY_BRIGHTNESS_DOWN,
+  SIMPSON_KEY_BACKSPACE, ' ', SIMPSON_KEY_FN, SIMPSON_KEY_GPS, 0, 0, 0
+};
+
+char numeric_keymap[19] = {
+  '1', '2', '3', SIMPSON_KEY_BLUETOOTH,
+  '4', '5', '6', SIMPSON_KEY_BRIGHTNESS_UP,
+  '7', '8', '9', SIMPSON_KEY_BRIGHTNESS_DOWN,
+  SIMPSON_KEY_BACKSPACE, '0', SIMPSON_KEY_FN, SIMPSON_KEY_GPS, 0, 0, 0
+};
+}
+
+bool SimpsonKeypad::begin() {
+  if (!_keypad.begin()) return false;
+  _keypad.setKeyPadMode(I2C_KEYPAD_4x4);
+  _keypad.setDebounceThreshold(50);
+  loadModeMap();
+  _ready = true;
+  return true;
+}
+
+void SimpsonKeypad::loadModeMap() {
+  switch (_mode) {
+    case SIMPSON_KEYPAD_CONTROL:
+      _keypad.loadKeyMap(control_keymap);
+      break;
+    case SIMPSON_KEYPAD_ABC:
+    case SIMPSON_KEYPAD_ABC_UPPER:
+      _keypad.loadKeyMap(alphabet_keymap);
+      break;
+    case SIMPSON_KEYPAD_NUMERIC:
+      _keypad.loadKeyMap(numeric_keymap);
+      break;
+  }
+}
+
+uint8_t SimpsonKeypad::poll() {
+  if (!_ready) return SIMPSON_KEY_NONE;
+
+  uint8_t key = _keypad.getChar();
+  if (key == I2C_KEYPAD_THRESHOLD) return SIMPSON_KEY_NONE;
+  if (key == SIMPSON_KEY_NONE) {
+    _last_key = SIMPSON_KEY_NONE;
+    return SIMPSON_KEY_NONE;
+  }
+  if (key == _last_key) return SIMPSON_KEY_NONE;
+  _last_key = key;
+
+  if (key == SIMPSON_KEY_FN) {
+    _mode = static_cast<SimpsonKeypadMode>((_mode + 1) % 4);
+    loadModeMap();
+    return SIMPSON_KEY_MODE_CHANGED;
+  }
+  return key;
+}

variants/simpson/SimpsonKeypad.h

@@ -0,0 +1,49 @@
+#pragma once
+
+#include <Arduino.h>
+#include <I2CKeyPad.h>
+
+#ifndef SIMPSON_KEYPAD_ADDR
+  #define SIMPSON_KEYPAD_ADDR 0x20
+#endif
+
+enum SimpsonKeypadMode : uint8_t {
+  SIMPSON_KEYPAD_CONTROL,
+  SIMPSON_KEYPAD_ABC,
+  SIMPSON_KEYPAD_ABC_UPPER,
+  SIMPSON_KEYPAD_NUMERIC
+};
+
+enum SimpsonKeypadKey : uint8_t {
+  SIMPSON_KEY_NONE = 0,
+  SIMPSON_KEY_CANCEL = 1,
+  SIMPSON_KEY_UP,
+  SIMPSON_KEY_BLUETOOTH,
+  SIMPSON_KEY_LEFT,
+  SIMPSON_KEY_ENTER,
+  SIMPSON_KEY_RIGHT,
+  SIMPSON_KEY_BRIGHTNESS_UP,
+  SIMPSON_KEY_SYMBOLS,
+  SIMPSON_KEY_DOWN,
+  SIMPSON_KEY_BRIGHTNESS_DOWN,
+  SIMPSON_KEY_MESSAGES,
+  SIMPSON_KEY_FN,
+  SIMPSON_KEY_GPS,
+  SIMPSON_KEY_BACKSPACE,
+  SIMPSON_KEY_MODE_CHANGED
+};
+
+class SimpsonKeypad {
+  I2CKeyPad _keypad;
+  SimpsonKeypadMode _mode = SIMPSON_KEYPAD_CONTROL;
+  uint8_t _last_key = SIMPSON_KEY_NONE;
+  bool _ready = false;
+
+  void loadModeMap();
+
+public:
+  SimpsonKeypad() : _keypad(SIMPSON_KEYPAD_ADDR, &Wire) {}
+  bool begin();
+  uint8_t poll();
+  SimpsonKeypadMode mode() const { return _mode; }
+};

variants/simpson/platformio.ini

@@ -0,0 +1,21 @@
+[Simpson]
+extends = Promicro
+build_unflags = -D PIN_GPS_RX=3 -D PIN_GPS_TX=4 -D ENV_INCLUDE_AHTX0=1 -D ENV_INCLUDE_BME280=1 -D ENV_INCLUDE_BMP280=1 -D ENV_INCLUDE_INA3221=1 -D ENV_INCLUDE_INA219=1 -D ENV_INCLUDE_INA226=1
+build_flags = ${Promicro.build_flags}
+  -I variants/simpson
+  -D SIMPSON
+  -D PIN_GPS_TX=3
+  -D PIN_GPS_RX=4
+  -D PIN_VIBRATION=1
+  -D ADC_MULTIPLIER=1.71
+  -D SIMPSON_KEYPAD_ADDR=0x20
+  -D DISPLAY_ROTATION=2
+  -D ENV_SKIP_GPS_DETECT
+build_src_filter = ${nrf52_base.build_src_filter}
+  +<helpers/sensors>
+  +<../variants/simpson>
+  +<../variants/promicro/target.cpp>
+  +<../variants/promicro/PromicroBoard.cpp>
+lib_deps = ${Promicro.lib_deps}
+  adafruit/Adafruit SH110X @ ^2.1.13
+  RobTillaart/I2CKeyPad @ ^0.5.2

variants/simpson/variant.cpp

@@ -0,0 +1,9 @@
+#include "variant.h"
+#include "wiring_constants.h"
+#include "wiring_digital.h"
+
+const uint32_t g_ADigitalPinMap[] = {
+  8, 6, 17, 20, 22, 24, 32, 11, 36, 38, 9, 10, 43, 45, 47, 2, 29, 31, 33, 34, 37, 13, 15
+};
+
+void initVariant() {}

variants/simpson/variant.h

@@ -0,0 +1,62 @@
+/*
+ * Simpson variant for the Pro Micro nRF52840 carrier used by this device.
+ * Arduino pin indices map to physical nRF52840 GPIOs in variant.cpp.
+ */
+#pragma once
+
+#include "WVariant.h"
+
+#define VARIANT_MCK        (64000000ul)
+#define USE_LFRC
+
+#define PIN_EXT_VCC        (21)
+#define EXT_VCC            PIN_EXT_VCC
+
+#define BATTERY_PIN        (17)
+#define ADC_RESOLUTION     12
+
+#define PINS_COUNT         (23)
+#define NUM_DIGITAL_PINS   (23)
+#define NUM_ANALOG_INPUTS  (1)
+#define NUM_ANALOG_OUTPUTS (0)
+
+#define PIN_SERIAL1_TX     (4)
+#define PIN_SERIAL1_RX     (3)
+
+#define WIRE_INTERFACES_COUNT 1
+#define PIN_WIRE_SDA       (8)
+#define PIN_WIRE_SCL       (7)
+
+#define SPI_INTERFACES_COUNT 1
+#define PIN_SPI_SCK        (12)
+#define PIN_SPI_MISO       (15)
+#define PIN_SPI_MOSI       (14)
+#define PIN_SPI_NSS        (13)
+
+#define PIN_LED            (22)
+#define LED_PIN            PIN_LED
+#define LED_BLUE           PIN_LED
+#define LED_BUILTIN        PIN_LED
+#define LED_STATE_ON       1
+
+#define PIN_BUTTON1        (6)
+#define BUTTON_PIN         PIN_BUTTON1
+
+#define PIN_BUZZER         (0)
+#ifndef PIN_VIBRATION
+  #define PIN_VIBRATION    (1)
+#endif
+#define PIN_GPS_EN         (5)
+
+#define P_LORA_NSS         (13)
+#define P_LORA_DIO_1       (11)
+#define P_LORA_RESET       (10)
+#define P_LORA_BUSY        (16)
+#define P_LORA_MISO        (15)
+#define P_LORA_SCLK        (12)
+#define P_LORA_MOSI        (14)
+#define SX126X_POWER_EN    (21)
+#define SX126X_RXEN        (2)
+#define SX126X_TXEN        (-1)
+#define SX126X_DIO2_AS_RF_SWITCH true
+#define SX126X_DIO3_TCXO_VOLTAGE (1.8f)