{"id":7575,"date":"2024-11-21T15:54:17","date_gmt":"2024-11-21T06:54:17","guid":{"rendered":"https:\/\/akibabara.com\/blog\/?p=7575"},"modified":"2024-11-21T16:28:11","modified_gmt":"2024-11-21T07:28:11","slug":"xiao-ble-nrf52840%e3%81%ae%e9%80%81%e4%bf%a1%e5%87%ba%e5%8a%9b%e3%82%84%e3%82%a2%e3%83%89%e3%83%90%e3%82%bf%e3%82%a4%e3%82%ba%e9%80%81%e4%bf%a1%e9%96%93%e9%9a%94%e3%81%a8%e3%80%81%e9%9b%bb%e6%b3%a2","status":"publish","type":"post","link":"https:\/\/akibabara.com\/blog\/7575.html","title":{"rendered":"XIAO BLE nRF52840\u306e\u9001\u4fe1\u51fa\u529b\u3084\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u9001\u4fe1\u9593\u9694\u3068\u3001\u96fb\u6ce2\u304c\u5c4a\u304f\u8ddd\u96e2\u306e\u95a2\u4fc2\u3092\u5b9f\u9a13\u3057\u3066\u307f\u305f"},"content":{"rendered":"\n
\"\"<\/figure>\n\n\n\n

\u524d\u56de<\/a>\u306fXIAO BLE nRF52840<\/a>\u3068\u3044\u3046\u30de\u30a4\u30b3\u30f3\u30e2\u30b8\u30e5\u30fc\u30eb\u306e\u6d88\u8cbb\u96fb\u529b\u3092\u8abf\u3079\u3066\u307f\u307e\u3057\u305f\u304c\u3001\u4eca\u56de\u306f\u5b9f\u969b\u306b\u3069\u306e\u304f\u3089\u3044\u307e\u3067\u96fb\u6ce2\u304c\u5c4a\u304f\u306e\u304b\u5b9f\u9a13\u3092\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u6bd4\u8f03\u3059\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u306f\u4ee5\u4e0b\u306e3\u70b9\u3067\u3059\u3002<\/p>\n\n\n\n

\u30fb\u9001\u4fe1\u3059\u308b\u96fb\u6ce2\u306e\u51fa\u529b\u5f37\u5ea6
\u30fb\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306e\u9001\u4fe1\u983b\u5ea6
\u30fb\u9001\u4fe1\u6a5f\u304b\u3089\u53d7\u4fe1\u6a5f\u307e\u3067\u306e\u8ddd\u96e2<\/p>\n\n\n\n

\u3053\u308c\u3089\u3092\u5909\u66f4\u3057\u306a\u304c\u3089\u6700\u9069\u306a\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u898b\u3064\u3051\u3066\u3044\u304d\u305f\u3044\u3068\u601d\u3044\u307e\u3059\u3002\u306a\u304a\u3001\u4eca\u56de\u306e\u5b9f\u9a13\u306f\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306b\u30bb\u30f3\u30b5\u30fc\u306e\u30c7\u30fc\u30bf\u3092\u4e57\u305b\u3066\u9001\u4fe1\u3059\u308bIoT\u30c7\u30d0\u30a4\u30b9\u3092\u60f3\u5b9a\u3057\u305f\u5b9f\u9a13\u3067\u3059\u3002\u30da\u30a2\u30ea\u30f3\u30b0\u3092\u884c\u3063\u3066\u901a\u4fe1\u3059\u308b\u5834\u5408\u306f\u307e\u305f\u5909\u308f\u3063\u3066\u304f\u308b\u304b\u3068\u601d\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

\u6e2c\u5b9a\u6761\u4ef6<\/h2>\n\n\n\n

\u9001\u4fe1\u5074
\u30fbXIAO BLE nRF52840\u3092\u4f7f\u7528
\u30fb\u96fb\u6e90\u306f\u30b3\u30a4\u30f3\u96fb\u6c60CR2032\u3092BAT+\/-\u306b\u63a5\u7d9a
\u30fb9\u79d2\u9593\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3092\u9001\u4fe1\u30011\u79d2\u9593\u4f11\u6b62\u3001\u3053\u306e1\u30bb\u30c3\u30c8\u306710\u79d2
\u30fb\u3053\u308c\u309210\u56de\u7e70\u308a\u8fd4\u3059<\/p>\n\n\n\n

\u53d7\u4fe1\u5074
\u30fbM5Stack Core2\u3092\u4f7f\u7528
\u30fb5\u79d2\u9593\u30b9\u30ad\u30e3\u30f3\u3057\u3066\u53d7\u4fe1\u3057\u305f\u30c7\u30fc\u30bf\u3092\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3057\u3001\u3059\u3050\u306b\u7e70\u308a\u8fd4\u3059
\u30fb\u540c\u3058\u30c7\u30fc\u30bf\u3092\u518d\u3073\u53d7\u4fe1\u3057\u305f\u5834\u5408\u306f\u7121\u8996\u3059\u308b<\/p>\n\n\n\n

\u3064\u307e\u308a\u3001\u53d6\u5f97\u3057\u305f\u30c7\u30fc\u30bf\u6570\u306f10\u500b\u306b\u306a\u308c\u3070\u5168\u3066\u306e\u30c7\u30fc\u30bf\u304c\u6b63\u5e38\u306b\u53d7\u4fe1\u3067\u304d\u305f\u3053\u3068\u3092\u610f\u5473\u3057\u307e\u3059\u3002<\/p>\n\n\n\n

\u6e2c\u5b9a\u30d1\u30bf\u30fc\u30f3<\/h2>\n\n\n\n

(1) \u9001\u4fe1\u3059\u308b\u96fb\u6ce2\u306e\u51fa\u529b\u5f37\u5ea6
Bluefruit.setTxPower() \u3067\u4e0e\u3048\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u3001-40, 0, 4, 8 \u306e4\u30d1\u30bf\u30fc\u30f3\u3067\u8a66\u3057\u307e\u3057\u305f\u3002-40dB\u304c\u6700\u5c0f\u3067\u3001+8dB\u304c\u6700\u5927\u3067\u3059\u3002<\/p>\n\n\n\n

(2) \u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306e\u9001\u4fe1\u983b\u5ea6
Bluefruit.Advertising.setInterval() \u3067\u4e0e\u3048\u308b\u30d1\u30e9\u30e1\u30fc\u30bf\u30fc\u3092\u300132, 64, 128, 256, 384, 512, 1024, 2048, 4096 \u306e9\u30d1\u30bf\u30fc\u30f3\u3067\u8a66\u3057\u307e\u3057\u305f\u3002\u3053\u306e\u6570\u5b57\u306fBLE\u306e\u57fa\u6e96\u306e\u5468\u671f 0.625ms \u306e\u500d\u6570\u3068\u3059\u308b\u5024\u3067\u300132\u306a\u308920ms\u9593\u9694\u3001512\u306a\u3089320ms\u9593\u9694\u3067\u9001\u4fe1\u3055\u308c\u307e\u3059\u3002
setInterval()\u306b\u306f2\u3064\u5f15\u6570\u304c\u3042\u308a\u307e\u3059\u304c\u3001\u4eca\u56de\u306f\u540c\u3058\u5024\u306b\u3057\u3066\u3044\u307e\u3059\u3002Bluefruit.Advertising.setFastTimeout(1) \u3068\u3057\u3066\u3044\u308b\u306e\u3067\u3001\u5e38\u306b\u540c\u3058\u9593\u9694\u3067\u51fa\u3059\u3088\u3046\u306b\u306a\u3063\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n

(3) \u9001\u4fe1\u6a5f\u304b\u3089\u53d7\u4fe1\u6a5f\u307e\u3067\u306e\u8ddd\u96e2
\u4ee5\u4e0b\u306e3\u30d1\u30bf\u30fc\u30f3\u3067\u5b9f\u9a13\u3057\u307e\u3057\u305f\u3002\u7279\u306b\u6700\u5f8c\u306e\u7b87\u6240\u306fWiFi\u3067\u3082\u96fb\u6ce2\u72b6\u6cc1\u304c\u826f\u304f\u306a\u3044\u5834\u6240\u3067\u3059\u3002
\u30fb\u7d0450cm\u306e\u81f3\u8fd1\u8ddd\u96e2
\u30fb\u7d044m\u3001\u5eca\u4e0b\u3092\u306f\u3055\u3093\u3067\u96a3\u306e\u90e8\u5c4b
\u30fb\u7d0415m\u3001\u5eca\u4e0b\u3092\u306f\u3055\u3093\u3067\u96a3\u306e\u96a3\u306e\u90e8\u5c4b<\/p>\n\n\n\n

\u30d7\u30ed\u30b0\u30e9\u30e0<\/h2>\n\n\n\n

\u9001\u4fe1\u5074\uff08XIAO BLE nRF52840\uff09<\/h3>\n\n\n\n
\/*\n  ble2wifi_client.ino\n  Seeed XIAO BLE nRF52840\u3067\u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\u7b49\u306e\u30c7\u30fc\u30bf\u3092\u3001BLE\u306e\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u30c7\u30fc\u30bf\u306b\u306e\u305b\u3066\u9001\u4fe1\u3059\u308b\n  \n  Copyright (c) 2024 Kaz  (https:\/\/akibabara.com\/blog\/)\n  Released under the MIT license.\n  see https:\/\/opensource.org\/licenses\/MIT\n*\/\n\n#define DEBUG 1\n#include <Arduino.h>\n#if DEBUG == 1\n#include <Adafruit_TinyUSB.h>   \/\/ for Serial\n#endif\n\n\/\/ \u8a2d\u5b9a\nconst uint16_t DEVICE_ID = 1;     \/\/ \u5b50\u6a5fID (advData.id)\nconst uint8_t DEVICE_TYPE = 10;   \/\/ \u5b50\u6a5f\u7a2e\u5225 (advData.type)\n\n\/\/ BLE\u95a2\u9023\n#include "bluefruit.h"\n\n\/\/ \u5916\u90e8QSPI Flash Memory\uff08\u7701\u96fb\u529b\u5316\u306e\u305f\u3081\u306b\u4f7f\u7528\uff09\n#include <Adafruit_SPIFlash.h>\nAdafruit_FlashTransport_QSPI flashTransport;\nAdafruit_SPIFlash flash(&flashTransport);\n\n\/\/ \u9001\u4fe1\u3059\u308b\u30c7\u30fc\u30bf\u306e\u69cb\u9020\u4f53\uff08nRF52840\u3067\u306f2\u30d0\u30a4\u30c8\u672a\u6e80\u306f\u30d1\u30c7\u30a3\u30f3\u30b0\u3055\u308c\u308b\u306e\u3067\u9806\u756a\u306b\u6ce8\u610f\uff09\ntypedef struct {\n  uint8_t maker[4]; \/\/ maker_id \u5b50\u6a5f(nRF52840)\u306e\u8b58\u5225\u7528\n  uint16_t id;    \/\/ \u5b50\u6a5fID\n  uint8_t type;   \/\/ \u5b50\u6a5f\u7a2e\u5225\n  uint8_t ttl;    \/\/ TTL (time to live)\n  uint16_t seq;   \/\/ \u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7   -- \u3053\u3053\u307e\u3067\u5171\u901a\u30d5\u30a9\u30fc\u30de\u30c3\u30c8\n  int16_t volt;   \/\/ \u96fb\u5727\u30c7\u30fc\u30bf\n  int16_t temp;   \/\/ \u6e29\u5ea6\u30c7\u30fc\u30bf\n} AdvData;\n AdvData advData = {\n  .maker = { 0xFF, 0xFF, 0x12, 0x35 },\n  .id = DEVICE_ID,\n  .type = DEVICE_TYPE,\n  .ttl = 0,\n  .seq = 1,\n };\n\n\/\/ \u30c7\u30d0\u30c3\u30b0\u306b\u4fbf\u5229\u306a\u30de\u30af\u30ed\u5b9a\u7fa9 --------\n#define sp(x) Serial.println(x)\n#define spn(x) Serial.print(x)\n#define spp(k,v) Serial.println(String(k)+"="+String(v))\n#define spf(fmt, ...) Serial.printf(fmt, __VA_ARGS__)\n#define array_length(x) (sizeof(x) \/ sizeof(x[0]))\n\n\/\/ \u6e2c\u5b9a\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\nvoid measure() {\n  \/\/ \u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\u306e\u6e2c\u5b9a\n  int vbat_raw = analogRead(PIN_VBAT);\n  int vbat_mv = vbat_raw * 2400 \/ 1023; \/\/ VREF = 2.4V, 10bit A\/D\n  vbat_mv = vbat_mv * 1510 \/ 510;       \/\/ 1M + 510k \/ 510k\n  advData.volt = (int16_t)vbat_mv;\n  if (DEBUG) sp(advData.volt);\n\n  \/\/ CPU\u306e\u6e29\u5ea6\u6e2c\u5b9a\n  advData.temp = (int16_t)(readCPUTemperature() * 100.0);\n\n  \/\/ \u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u4e2d\u306a\u3089\u4e00\u65e6\u4e2d\u65ad\uff08\u305f\u3076\u3093\u3057\u306a\u304f\u3066\u3044\u3044\uff09\n  if (Bluefruit.Advertising.isRunning()) {\n    Bluefruit.Advertising.stop();\n  }\n\n  \/\/ \u30c7\u30fc\u30bf\u3092\u9001\u4fe1\n  if (advData.seq > 9999) advData.seq = 0;\n  Bluefruit.Advertising.clearData();\n  Bluefruit.Advertising.addData(BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA, &advData, sizeof(advData));\n  Bluefruit.Advertising.start(9);   \/\/ \u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u3092\u958b\u59cb\u3001\u5f15\u6570\u306f\u7d42\u4e86\u3059\u308b\u6642\u9593(s)\n  advData.seq++;\n}\n\n\/\/ \u521d\u671f\u5316\nvoid setup() {\n  if (DEBUG) {\n    Serial.begin(115200);\n    pinMode(LED_RED, OUTPUT);\n    pinMode(LED_GREEN, OUTPUT);\n    pinMode(LED_BLUE, OUTPUT);\n    digitalWrite(LED_RED, HIGH);\n    digitalWrite(LED_GREEN, HIGH);\n    digitalWrite(LED_BLUE, HIGH);\n  }\n\n  \/\/ \u30aa\u30f3\u30dc\u30fc\u30c9QSPI Flash Memory\u3092Deep Power-down\u30e2\u30fc\u30c9\u306b\u3057\u3066\u7701\u96fb\u529b\u5316\u3059\u308b\n  flashTransport.begin();\n  flashTransport.runCommand(0xB9);\n  delayMicroseconds(5);\n  flashTransport.end();\n\n  \/\/ \u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\u6e2c\u5b9a\u306e\u6e96\u5099\n  analogReference(AR_INTERNAL_2_4); \/\/ VREF = 2.4V\n  analogReadResolution(10);         \/\/ 10bit A\/D\n  pinMode(VBAT_ENABLE, OUTPUT);\n  digitalWrite(VBAT_ENABLE, LOW);   \/\/ VBAT_ENABLE\u3092LOW\u306b\u3059\u308b\u3068\u6e2c\u5b9a\u3067\u304d\u308b\n\n  if (DEBUG) {\n    digitalWrite(LED_RED, LOW);\n    delay(500);\n    digitalWrite(LED_RED, HIGH);\n  }\n\n  \/\/ BLE\u306e\u8a2d\u5b9a\n  Bluefruit.begin();\n  Bluefruit.autoConnLed(false);\n  Bluefruit.setTxPower(0);  \/\/ \u9001\u4fe1\u5f37\u5ea6\u3000\u6700\u5c0f -40, \u6700\u5927 +8 dBm\n  Bluefruit.Advertising.addFlags(BLE_GAP_ADV_FLAGS_LE_ONLY_GENERAL_DISC_MODE);\n  Bluefruit.Advertising.setType(BLE_GAP_ADV_TYPE_NONCONNECTABLE_NONSCANNABLE_UNDIRECTED);\n  \/\/Bluefruit.Advertising.addData(BLE_GAP_AD_TYPE_MANUFACTURER_SPECIFIC_DATA, &advData, sizeof(advData));\n  Bluefruit.Advertising.setFastTimeout(1);  \/\/ \u9ad8\u901f\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306e\u7d42\u4e86\u6642\u9593 0=\u7d99\u7d9a\uff080\u306b\u3059\u308b\u3068\u306a\u305c\u304bstart()\u304c\u52b9\u304b\u306a\u3044\uff09\n\n  \/\/ WDT\u306e\u8a2d\u5b9a\n  NRF_WDT->CONFIG         = 0x01;     \/\/ Configure WDT to run when CPU is asleep\n  NRF_WDT->CRV            = 1+32768*120;    \/\/ CRV = timeout * 32768 + 1\n  NRF_WDT->RREN           = 0x01;     \/\/ Enable the RR[0] reload register\n  NRF_WDT->TASKS_START    = 1;        \/\/ Start WDT       \n}\n\n\/\/ \u30e1\u30a4\u30f3\nvoid loop() {\n  int16_t txpowers[4] = { -40, 0, 4, 8 };\n  uint16_t intervals[9] = { 32, 64, 128, 256, 384, 512, 1024, 2048, 4096 };\n  for (int tx=0; tx<4; tx++) {\n    for (int iv=0; iv<9; iv++) {\n      advData.id = tx * 100 + iv;\n      advData.seq = 1;\n      Bluefruit.setTxPower(txpowers[tx]);\n      Bluefruit.Advertising.setInterval(intervals[iv], intervals[iv]);\n      for (int i=0; i<10; i++) {\n        loop_sub();\n      }\n    }\n  }\n  digitalWrite(LED_GREEN, HIGH);\n  digitalWrite(LED_BLUE, HIGH);\n  while (1) {\n    digitalWrite(LED_RED, LOW);\n    delay(500);\n    digitalWrite(LED_RED, HIGH);\n    delay(500);\n    NRF_WDT->RR[0] = WDT_RR_RR_Reload;\n  }\n}\nvoid loop_sub() {\n  if (DEBUG) {\n    digitalWrite(LED_GREEN, HIGH);\n    digitalWrite(LED_BLUE, LOW);\n  }\n\n  measure();  \/\/ \u6e2c\u5b9a\u3057\u3066\u30c7\u30fc\u30bf\u3092\u9001\u4fe1\u3059\u308b\n\n  delay(500);\n  if (DEBUG) {\n    digitalWrite(LED_BLUE, HIGH);\n    digitalWrite(LED_GREEN, LOW);\n  }\n  delay(9500);\n\n  \/\/ WDT Update\n  NRF_WDT->RR[0] = WDT_RR_RR_Reload;\n}<\/code><\/pre><\/div>\n\n\n\n
\u53d7\u4fe1\u5074\uff08M5Stack Core2\uff09<\/h3>\n\n\n\n
\/*\n  ble2wifi_server.ino\n  Seeed XIAO BLE nRF52840\u304b\u3089\u53d7\u4fe1\u3057\u305fBLE\u306e\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u30c7\u30fc\u30bf\u3092\u3001WiFi\u3067Web\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3059\u308b\n\n  Copyright (c) 2024 Kaz  (https:\/\/akibabara.com\/blog\/)\n  Released under the MIT license.\n  see https:\/\/opensource.org\/licenses\/MIT\n*\/\n\n#include <M5Unified.h>\n\/\/#include <Arduino.h>\n\n\/\/ \u30cd\u30c3\u30c8\u30ef\u30fc\u30af\u8a2d\u5b9a\n#define WIFI_SSID "xxxx"\n#define WIFI_PASS "xxxx"\nconst String WEB_API_URL = "http:\/\/xxxx\/bletest.php";  \/\/ \u9001\u4fe1\u5148URL\n\n\/\/ \u8a2d\u5b9a\nconst size_t RCV_CNT_MAX = 10;  \/\/ \u540c\u6642\u306b\u53d7\u4fe1\u3059\u308b\u30c7\u30d0\u30a4\u30b9\u306e\u6700\u5927\u6570\nconst int BLE_SCAN_TIME = 5;    \/\/ BLE\u306e\u30b9\u30ad\u30e3\u30f3\u3092\u884c\u3046\u6642\u9593(s)\nconst char XIAO[4] = { 0xFF, 0xFF, 0x12, 0x35 };   \/\/ XIAO nRF52840\u8b58\u5225\u5024(FFFF\u306f\u56fa\u5b9a)\n\n\/\/ BLE\u95a2\u9023\n#include <BLEDevice.h>\nBLEScan* pBLEScan;\n\n\/\/ Wi-Fi\u95a2\u9023\n#include <WiFi.h>\n#include <HTTPClient.h>\n\n\/\/ \u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\u306e\u8a18\u61b6\n#include <map>\nstd::map<uint16_t, uint16_t> seqHist;\n\n\/\/ \u30c7\u30d0\u30c3\u30b0\u306b\u4fbf\u5229\u306a\u30de\u30af\u30ed\u5b9a\u7fa9 --------\n#define sp(x) Serial.println(x)\n#define spn(x) Serial.print(x)\n#define spp(k,v) Serial.println(String(k)+"="+String(v))\n#define spf(fmt, ...) Serial.printf(fmt, __VA_ARGS__)\n\n\/\/ \u305d\u306e\u4ed6\u5b9a\u7fa9\nstruct RcvData {\n  uint16_t id;  \/\/ \u5b50\u6a5fID\n  uint8_t type; \/\/ \u5b50\u6a5f\u7a2e\u5225\n  uint8_t ttl;  \/\/ TTL (time to live)\n  uint16_t seq; \/\/ \u30b7\u30fc\u30b1\u30f3\u30b9\u756a\u53f7\n  float volt;   \/\/ \u30d0\u30c3\u30c6\u30ea\u30fc\u96fb\u5727\n  float temp;   \/\/ SoC\u6e29\u5ea6\n  int16_t rssi; \/\/ \u96fb\u6ce2\u5f37\u5ea6 RSSI -50\u975e\u5e38\u306b\u5f37\u3044\u3000-80\u5f31\u3044\n};\n\n\/\/ Wi-Fi\u63a5\u7d9a\u3059\u308b\nbool wifiConnect() {\n  bool stat = false;\n  if (WiFi.status() != WL_CONNECTED) {\n    Serial.println("Wifi connecting.");\n    for (int j=0; j<10; j++) {\n      WiFi.disconnect();\n      WiFi.mode(WIFI_STA);\n      WiFi.begin(WIFI_SSID, WIFI_PASS);  \/\/  Wi-Fi AP\u306b\u63a5\u7d9a\n      for (int i=0; i<10; i++) {\n        if (WiFi.status() == WL_CONNECTED) break;\n        Serial.print(".");\n        delay(500);\n      }\n      if (WiFi.status() == WL_CONNECTED) {\n        Serial.println("connected!");\n        Serial.println(WiFi.localIP());\n        stat = true;\n        break;\n      } else {\n        Serial.println("failed");\n        WiFi.disconnect();\n      }\n    }\n  }\n  return stat;\n}\n\n\/\/ \u521d\u671f\u5316\nvoid setup() {\n  auto cfg = M5.config();\n  M5.begin(cfg); \n\tSerial.begin(115200);\n  delay(1000);\n  sp("System Start!");\n\n  \/\/ \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306e\u8a2d\u5b9a\n  M5.Lcd.init();\n  M5.Lcd.setColorDepth(16);\n  M5.Lcd.fillScreen(TFT_BLUE);\n  M5.Lcd.setTextColor(TFT_WHITE, TFT_BLACK);\n  M5.Lcd.setTextSize(2);\n  M5.Lcd.setClipRect(2,2, M5.Lcd.width()-4, M5.Lcd.height()-4);  \/\/\u63cf\u753b\u7bc4\u56f2\n\n  \/\/ Wi-Fi\u63a5\u7d9a\n  wifiConnect();\n\n  \/\/ BLE\u306e\u8a2d\u5b9a\n  sp("init BLE device...");\n  BLEDevice::init("");\n  pBLEScan = BLEDevice::getScan();\n  pBLEScan->setActiveScan(false);   \/\/ \u30d1\u30c3\u30b7\u30d6\u30b9\u30ad\u30e3\u30f3\u306b\u3059\u308b\n}\n\n\/\/ \u30e1\u30a4\u30f3\nvoid loop() {\n  RcvData rcvdatas[RCV_CNT_MAX];\n  int rcvcnt = 0;\n\n  \/\/ BLE\u306e\u30b9\u30ad\u30e3\u30f3\u3092\u884c\u3046\n  sp("\\nscanning...");\n  BLEScanResults foundDevices = pBLEScan->start(BLE_SCAN_TIME);\n  int hit = foundDevices.getCount();\n  spf("found", hit);\n\n  \/\/ \u53d7\u4fe1\u3057\u305f\u4e00\u89a7\u304b\u3089\u5bfe\u8c61\u30c7\u30d0\u30a4\u30b9\u3092\u62bd\u51fa\u3059\u308b\n  for (int i=0; i<hit; i++) {\n    BLEAdvertisedDevice dev = foundDevices.getDevice(i);\n    std::string data = dev.getManufacturerData();\n\n    \/\/ debug\n    if (data[0] == XIAO[0] && data[1] == XIAO[1]) {\n      String tmpinfo = "";\n      spf("Scanned: Device_%03d (%02d): ", i, data.length());\n      for (int j=0; j<data.length(); j++) spf("%02X ",data[j]);\n      sp("");\n    }\n\n    \/\/ XIAO nRF52840\u304b\u3089\u306e\u30c7\u30fc\u30bf\u3060\u3063\u305f\u3089\u5024\u3092\u683c\u7d0d\u3059\u308b\n    if (data.length() < 14) continue;\n    if (data[0] == XIAO[0] && data[1] == XIAO[1] && data[2] == XIAO[2] && data[3] == XIAO[3]) {\n      rcvdatas[rcvcnt].id = data[5] << 8 | data[4];\n      rcvdatas[rcvcnt].type = data[6];\n      rcvdatas[rcvcnt].ttl = data[7];\n      rcvdatas[rcvcnt].seq = data[9] << 8 | data[8];\n      if (seqHist[rcvdatas[rcvcnt].id] == rcvdatas[rcvcnt].seq) continue;  \/\/ \u540c\u3058\u30c7\u30fc\u30bf\u306f\u7121\u8996\n      seqHist[rcvdatas[rcvcnt].id] = rcvdatas[rcvcnt].seq;\n      if (rcvdatas[rcvcnt].type == 10) {  \/\/ \u7a2e\u522510: \u5b9f\u9a13\u7528 volt(i2) temp(i2)\n        rcvdatas[rcvcnt].volt = (float)(data[11] << 8 | data[10]) \/ 1000.00;\n        rcvdatas[rcvcnt].temp = (float)(data[13] << 8 | data[12]) \/ 100.00;\n        rcvdatas[rcvcnt].rssi = (uint16_t)dev.getRSSI();  \/\/ \u96fb\u6ce2\u5f37\u5ea6\n        rcvcnt ++;\n      }\n      if (rcvcnt >= RCV_CNT_MAX) break;\n    }\n  }\n\n  \/\/ \u30c7\u30a3\u30b9\u30d7\u30ec\u30a4\u306b\u8868\u793a\n  if (rcvcnt > 0) {\n    M5.Lcd.fillScreen(TFT_BLACK);\n    M5.Lcd.setCursor(2, 4);\n    for (int i=0; i<rcvcnt; i++) {\n      M5.Lcd.printf("%02X %.2fV %.1fC %d %d\\n", rcvdatas[i].id, rcvdatas[i].volt, rcvdatas[i].temp, rcvdatas[i].rssi, rcvdatas[i].seq);\n    }\n  } else {\n    M5.Lcd.println("no data found");\n  }\n\n  \/\/ \u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\u3059\u308b\n  if (rcvcnt > 0) {\n    postServer(rcvdatas, rcvcnt);\n  }\n\n  delay(10);\n}\n\n\/\/ Web\u30b5\u30fc\u30d0\u30fc\u306b\u9001\u4fe1\nvoid postServer(struct RcvData* td, int cnt) {\n  HTTPClient http;\n  sp("Send to Web Server");\n\n  \/\/ POST\u30c7\u30fc\u30bf\u4f5c\u6210\n  String jsonData = "{\\"data\\":[";\n  char buff[64];\n  for (int i=0; i<cnt; i++) {\n    sprintf(buff, "{\\"id\\":%d,", td[i].id);\n    jsonData += buff;\n    sprintf(buff, "\\"volt\\":%.2f,", td[i].volt);\n    jsonData += buff;\n    sprintf(buff, "\\"temp\\":%.1f,", td[i].temp);\n    jsonData += buff;\n    sprintf(buff, "\\"rssi\\":%d,", td[i].rssi);\n    jsonData += buff;\n    sprintf(buff, "\\"seq\\":%d}", td[i].seq);\n    jsonData += buff;\n    if (i < cnt-1) jsonData += ",";\n  }\n  jsonData += "],\\"count\\":"+String(cnt)+"}";\n  sp(jsonData);\n\n  \/\/ \u9001\u4fe1\n  http.begin(WEB_API_URL); \/\/HTTP\n  http.addHeader("Content-Type", "application\/x-www-form-urlencoded");\n  http.addHeader("Content-Length", String(jsonData.length()));\n  http.setFollowRedirects(HTTPC_FORCE_FOLLOW_REDIRECTS);\n  int httpCode = http.POST(jsonData);\n  sp("[HTTP] POST... code: %d\\n"+String(httpCode));\n\n  \/\/ \u9001\u4fe1\u5f8c\u306e\u51e6\u7406\n  if (httpCode == HTTP_CODE_OK) {\n    String payload = http.getString();\n    sp(payload);\n  } else {\n    sp("[HTTP] POST... failed, error: %s\\n"+String(httpCode));\n  }\n  http.end();\n}<\/code><\/pre><\/div>\n\n\n\n
Web\u30b5\u30fc\u30d0\u30fc\u5074\uff08Linux\uff09<\/h3>\n\n\n\n
<?php\n\/\/\n\/\/ M5Stack\u304b\u3089\u9001\u4fe1\u3055\u308c\u305f\u30c7\u30fc\u30bf\u3092CSV\u306b\u683c\u7d0d\u3059\u308b\n\/\/\n\n\/\/ \u8a2d\u5b9a\n$SAVE_DIR = "\/path\/to\/savedir";\t\/\/ \u4fdd\u5b58\u5148\u30c7\u30a3\u30ec\u30af\u30c8\u30ea\uff08\u30d1\u30fc\u30df\u30c3\u30b7\u30e7\u30f3\u306e\u5909\u66f4\u3092\u5fd8\u308c\u305a\u306b\uff09\n$PREFIX = "xiao";\t\/\/ \u30d7\u30ec\u30d5\u30a3\u30c3\u30af\u30b9\n\n\/\/ \u5f15\u6570\u3092\u53d6\u308a\u8fbc\u307f\n$text = file_get_contents("php:\/\/input");\n$json = json_decode($text, true);\nif (!is_numeric($json['count'] ?? null) || !is_array($json['data'] ?? null)) {\n\theader("HTTP\/1.1 400 Bad Request");\n\texit;\n}\n\n\/\/ \u30d5\u30a1\u30a4\u30eb\u306b\u4fdd\u5b58\n$update = 0;\nif (count($json['data']) > 0) {\n\tforeach ($json['data'] as $dd) {\n\t\tif (!is_numeric($dd['id'] ?? null)) continue;\n\t\t$seq_path = sprintf("%s\/%s_%d.seq", $SAVE_DIR, $PREFIX, $dd['id']);\n\t\t$csv_path = sprintf("%s\/%s_%d.csv", $SAVE_DIR, $PREFIX, $dd['id']);\n\t\t$allcsv_path = sprintf("%s\/%s_all.csv", $SAVE_DIR, $PREFIX);\n\t\t$last_seq = (file_exists($seq_path)) ? file_get_contents($seq_path) : -1;\n\t\tif ($dd['seq'] != $last_seq) {\n\t\t\t$csv = [\n\t\t\t\tdate("Y-m-d H:i:s"),\n\t\t\t\t$dd['id'],\n\t\t\t\t$dd['volt'],\n\t\t\t\t$dd['temp'],\n\t\t\t\t$dd['rssi'],\n\t\t\t\t$dd['seq'],\n\t\t\t];\n\t\t\t$str = join(",",$csv)."\\n";\n\t\t\terror_log($str, 3, $csv_path);\n\t\t\terror_log($str, 3, $allcsv_path);\n\t\t\tfile_put_contents($seq_path, $dd['seq']);\n\t\t\t$update ++;\n\t\t}\n\t}\n}\n\n\/\/ \u7d42\u4e86\n$json = [ 'update'=> $update ];\nheader("Content-Type: application\/json; charset=utf-8");\necho json_encode($json);\nexit;\n\n?><\/code><\/pre><\/div>\n\n\n\n
\u6e2c\u5b9a\u7d50\u679c<\/h2>\n\n\n\n
\u305d\u308c\u305e\u308c\u306e\u8ddd\u96e2\u5225\u306e\u6e2c\u5b9a\u7d50\u679c\u306f\u4ee5\u4e0b\u306e\u901a\u308a\u3067\u3059\u3002\u7e26\u8ef8\u306f\u53d7\u4fe1\u306b\u6210\u529f\u3057\u305f\u56de\u6570\u3067\u300110\u306f100%\u6210\u529f\u3067\u3059\u3002\u6a2a\u8ef8\u306e\u300cAI nn\u300d\u306fBluefruit.Advertising.setInterval()\u306b\u4e0e\u3048\u305f\u6570\u5b57\u3067\u3001\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306e\u983b\u5ea6\u3067\u3059\u3002\uff080.625*nn\u79d2\uff09<\/p>\n\n\n\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n
\u3059\u3050\u6a2a\u306b\u7f6e\u3044\u305f\u3088\u3046\u306a\u72b6\u614b\u3067\u3057\u305f\u304c\u3001\u51fa\u529b\u304c-40dB\u306e\u3068\u304d\u306f\u3061\u3087\u3063\u3068\u53b3\u3057\u3044\u3088\u3046\u3067\u3057\u305f\u3002<\/p>\n\n\n\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n
\u5225\u306e\u90e8\u5c4b\u306b\u7f6e\u3044\u305f\u5834\u5408\u3001\u51fa\u529b-40dB\u306f\u5168\u6ec5\u3067\u3057\u305f\u304c\u3001\u305d\u308c\u4ee5\u5916\u306f\u3051\u3063\u3053\u3046\u3044\u3051\u307e\u3059\u306d\u3002<\/p>\n\n\n\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n
\u8907\u6570\u306e\u90e8\u5c4b\u3092\u307e\u305f\u3044\u3060\u53b3\u3057\u3044\u6761\u4ef6\u3067\u306f\u3001\u9001\u4fe1\u51fa\u529b\u306b\u3088\u3063\u3066\u5927\u304d\u306a\u5dee\u304c\u3042\u308a\u307e\u3057\u305f\u3002\u51fa\u529b+4dB\u306a\u3089\u3070\u3001\u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u306e\u983b\u5ea6\u3092\u4e0b\u3052\u3066\u3082\u6b63\u5e38\u306b\u53d7\u4fe1\u3067\u304d\u308b\u3088\u3046\u3067\u3059\u3002<\/p>\n\n\n\n
\u6d88\u8cbb\u96fb\u6d41\u306e\u8abf\u67fb<\/h2>\n\n\n\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n
\u7d9a\u3044\u3066\u9001\u4fe1\u51fa\u529b vs \u30a2\u30c9\u30d0\u30bf\u30a4\u30ba\u9001\u4fe1\u9593\u9694\u306e\u6d88\u8cbb\u96fb\u6d41\u3092\u6e2c\u5b9a\u3057\u3066\u307f\u307e\u3057\u305f\u3002\u6e2c\u5b9a\u306f\u5148\u307b\u3069\u306e\u30d7\u30ed\u30b0\u30e9\u30e0\u3092\u30d9\u30fc\u30b9\u306b\u3057\u3066\u3044\u307e\u3059\u304c\u3001\u4f59\u8a08\u306a\u6d88\u8cbb\u96fb\u6d41\u3092\u7701\u304f\u305f\u3081\u306bLED\u306e\u70b9\u706f\u3092\u3084\u3081\u3066\u3044\u307e\u3059\u3002\u96fb\u6e90\u306fPPK2\u304b\u30893000mV\u3092\u4e0e\u3048\u3066\u3044\u307e\u3059\u3002<\/p>\n\n\n\n
\u203b\u753b\u50cf\u306bMA\u3068\u66f8\u3044\u3066\u3042\u308a\u307e\u3059\u304c\u9593\u9055\u3044\u3067\u3059\u3002\u6b63\u3057\u304f\u306f\u03bcA\u3067\u3059\u3002\uff08Excel\u306e\u30b0\u30e9\u30d5\u30c6\u30f3\u30d7\u30ec\u30fc\u30c8\u304c\u52dd\u624b\u306b\u5185\u5bb9\u3092\u66f8\u304d\u63db\u3048\u3066\u3057\u307e\u3046\uff57<\/sub>\uff09<\/p>\n\n\n\n
\"\"\n\t\t\t\n\t\t\t\t\n\t\t\t<\/svg>\n\t\t<\/button><\/figure>\n\n\n\n
\u3055\u3059\u304c\u306b\u9ad8\u51fa\u529b\u3092\u9ad8\u983b\u5ea6\u3067\u884c\u3046\u3068\u7d50\u69cb\u98df\u3044\u307e\u3059\u306d\u3002\u3068\u3044\u3063\u3066\u3082\u6700\u9ad8\u3067\u30821.3mA\u304f\u3089\u3044\u3067\u3059\u304b\u3089\u3001\u6ec5\u8336\u82e6\u8336\u7701\u96fb\u529b\u306a\u3053\u3068\u304c\u308f\u304b\u308a\u307e\u3059\u3002<\/p>\n\n\n\n
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Bluefruit.setTxPower(4);\nBluefruit.Advertising.setInterval(256, 256);<\/code><\/pre><\/div>\n\n\n\n
\u3053\u308c\u306a\u3089\u5e73\u5747 146uA \u304f\u3089\u3044\u3067\u3059\u3002<\/p>\n\n\n\n
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