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.

tools/pull.sh

@@ -0,0 +1,19 @@
+#!/bin/bash
+# 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.
+
+# Pull the latest from each related repo. Configure with env vars; missing
+# vars are skipped silently so this works regardless of which repos you have
+# checked out locally.
+
+set -e
+
+for d in "$WII5_LIB_REPO" "$WII5_SDBLOCK_REPO" "$WII5_BINARY_REPO" "$WII5_BUOY_REPO"; do
+	[ -n "$d" ] && [ -d "$d" ] || continue
+	pushd "$d" >/dev/null
+	git pull
+	popd >/dev/null
+done