Initial public release of WII5 Buoy firmware

Firmware for an autonomous wave-measurement buoy (ATmega2560-based
WII5 v2 board). Reads wave motion from a Sparton AHRS-M1/M2 IMU,
samples GPS and battery state, and reports back over Iridium SBD
satellite telemetry. Originally developed 2012-2024.

This is the first public release. Code, documentation, and field-tested
operating modes (Capture, Sleep, Position, ManualTest, SelfTest,
LowBattery) are licensed under Apache 2.0 — see LICENSE and NOTICE.

See README.md for an overview and build instructions, CONTRIBUTING.md
for how to contribute, and DEPLOYMENTS.md for the field-deployment log.

WII5Setup.h

@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: Apache-2.0
+// Copyright (c) 2012-2024 Scott Penrose <scottp@dd.com.au> and WII5 Buoy contributors
+//
+// This file is part of WII5 Buoy firmware.
+// See LICENSE for full terms.
+
+/**
+ * @file WII5Setup.h
+ * @brief Boot-time hardware bring-up: pin defaults, peripherals, and serial ports.
+ */
+
+#ifndef WII5Setup_h
+#define WII5Setup_h
+
+#include <Arduino.h>
+#include <WII5.h>
+#include <TimeLib.h>
+
+class WII5Setup : public WII5 {
+  public:
+		virtual WII5_CONTROLLERS controllerId() {return WII5CONTROLLER_SETUP;}
+    void begin();
+    void beginSafe();
+    void bootbeep();
+    void shutdownbeep();
+    void setupPower();
+    void setupConsole();
+    void setupNetwork();
+    void setupIO();
+    void setupWII5();
+    void sleepBefore(bool mathsOn = false);
+    void sleepAfter();
+  protected:
+    bool _setupPower;
+    bool _setupIO;
+    bool _setupWII5;
+    bool _setupConsole;
+    bool _setupNetwork;
+};
+
+extern WII5Setup wii5Setup;
+#endif