From ae692f67af13d9d3b1e3db282716c743f6f2b38c Mon Sep 17 00:00:00 2001
From: Koichi Ito <koichii@live.jp>
Date: Sun, 20 Sep 2026 19:51:29 +0900
Subject: [PATCH] =?UTF-8?q?CSV=E4=BF=9D=E5=AD=98=E8=AA=BF=E6=95=B4?=
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---
 firmware/SensorLogger.cpp | 4 ++--
 firmware/SensorLogger.h   | 2 +-
 firmware/firmware.ino     | 4 ++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/firmware/SensorLogger.cpp b/firmware/SensorLogger.cpp
index 98ee1d6..58bf167 100644
--- a/firmware/SensorLogger.cpp
+++ b/firmware/SensorLogger.cpp
@@ -12,6 +12,7 @@ namespace {
 constexpr char kNusServiceUuid[] = "6E400001-B5A3-F393-E0A9-E50E24DCCA9E";
 constexpr char kNusRxUuid[] = "6E400002-B5A3-F393-E0A9-E50E24DCCA9E";
 constexpr char kNusTxUuid[] = "6E400003-B5A3-F393-E0A9-E50E24DCCA9E";
+constexpr char kBleDeviceNamePrefix[] = "EnvLog";
 constexpr int64_t kInitialYear = 1700;
 constexpr int64_t kSecondsPerDay = 86400;
 
@@ -66,7 +67,7 @@ void SensorLogger::begin(uint8_t soilPin) {
 
   uint64_t mac = ESP.getEfuseMac();
   char name[14];
-  snprintf(name, sizeof(name), "EnvLog-%05llX", mac & 0xFFFFF);
+  snprintf(name, sizeof(name), "%s-%05llX", kBleDeviceNamePrefix, mac & 0xFFFFF);
   bluetoothName_ = name;
   BLEDevice::init(bluetoothName_.c_str());
 
@@ -298,7 +299,6 @@ void SensorLogger::processCommand(const String& command) {
 }
 
 void SensorLogger::sendLog() {
-  sendNotification("タイムスタンプ,温度,湿度,土壌水分,光量,デバイス名\n");
   for (size_t index = 0; index < logCount_; ++index) {
     size_t logIndex = (logStart_ + index) % kMaxLogEntries;
     const SensorReading& reading = log_[logIndex];
diff --git a/firmware/SensorLogger.h b/firmware/SensorLogger.h
index 67d3ad2..8710819 100644
--- a/firmware/SensorLogger.h
+++ b/firmware/SensorLogger.h
@@ -29,7 +29,7 @@ public:
   bool isBluetoothConnected() const;
 
 private:
-  static constexpr unsigned long kMeasureIntervalMs = 10000UL;
+  static constexpr unsigned long kMeasureIntervalMs = 3600000UL;
   static constexpr unsigned long kAdvertiseRetryIntervalMs = 500UL;
 
   void readAndStore();
diff --git a/firmware/firmware.ino b/firmware/firmware.ino
index 37f25b0..d974a8e 100644
--- a/firmware/firmware.ino
+++ b/firmware/firmware.ino
@@ -4,7 +4,7 @@
 #include "NeoPixelController.h"
 #include "SensorLogger.h"
 
-const char kBluetoothName[] = "BT_Speaker5.4";
+const char kA2dpDeviceName[] = "BT_Speaker5.4";
 
 // I2C接続のOLED設定 (SSD1306 128x64)
 U8G2_SSD1306_128X64_NONAME_F_HW_I2C u8g2(U8G2_R0, /* reset=*/ U8X8_PIN_NONE);
@@ -169,7 +169,7 @@ void setup() {
   a2dp_sink.set_on_connection_state_changed(connection_state_changed_callback);
 
   // Bluetooth起動
-  a2dp_sink.start(kBluetoothName);
+  a2dp_sink.start(kA2dpDeviceName);
 }
 
 void loop() {