[B! IoT] afnfanã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯

afnfan id:afnfan

IoTã«é–¢ã™ã‚‹afnfanã®ãƒ–ãƒƒã‚¯ãƒžãƒ¼ã‚¯ (231)

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PTPF Protocol
ãƒ‡ãƒã‚¤ã‚¹ã«è‡ªç”±ã‚’ã€ãƒ‡ãƒ¼ã‚¿ã«ä¾¡å€¤ã‚’ã€‚PTPFãƒ—ãƒãƒˆã‚³ãƒ« (Payload Transaction Platform Protocol) ã¯ã€ ã‚µã‚¤ãƒãƒ¼ç©ºé–“ã‹ã‚‰ãƒ‡ãƒã‚¤ã‚¹ã¸ã®ã€å®‰å…¨ã‹ã¤è‡ªç”±ãªã‚¢ã‚¯ã‚»ã‚¹ãŒã§ãã‚‹ã“ã¨ ãƒ‡ãƒã‚¤ã‚¹ã‹ã‚‰ç™ºç”Ÿã™ã‚‹ãƒ‡ãƒ¼ã‚¿ã‚’å–ã‚Šæ‰±ã†ã‚¹ãƒ†ãƒ¼ã‚¯ãƒ›ãƒ«ãƒ€ãƒ¼é–“ã§ã€åˆ©ç›Šã®é…åˆ†ã‚„å¥‘ç´„ã®å±¥è¡ŒãŒã§ãã‚‹ã“ã¨ ãƒ‡ãƒã‚¤ã‚¹ã®ç§»ã‚Šå¤‰ã‚ã‚Šã«å·¦å³ã•ã‚Œãšã€éžä¸å¤®é›†æ¨©ã§é•·æœŸçš„ãªé‹ç”¨ãŒã§ãã‚‹ã“ã¨ ã‚’å®Ÿç¾ã™ã‚‹ãŸã‚ã€ IoTãƒ»ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³æŠ€è¡“ã‚’ã‚‚ã¨ã«é–‹ç™ºã•ã‚Œã¾ã—ãŸã€‚
afnfan 2022/02/10
IoT

ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³
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ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ç ”ç©¶ä¼š - trillion-node
ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ç ”ç©¶ä¼šã¨ã¯ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ç ”ç©¶ä¼šã¯ã€ä¸€å…†å€‹ï¼ˆãƒˆãƒªãƒªã‚ªãƒ³ï¼‰ã®å°ã•ãªç«¯æœ«ãŒç¤¾ä¼šã‚’æ”¯ãˆã‚‹ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ä¸–ä»£ã«ãŠã„ã¦ã€æ–°ã—ã„IoTã‚„CPSã®å…ˆç«¯æŠ€è¡“ã‚’ä½¿ã£ã¦ç¤¾ä¼šèª²é¡Œã‚„äººã€…ã®ç”Ÿæ´»èª²é¡Œã‚’è§£ã„ã¦ã‚†ãã“ã¨ã‚’çš†æ§˜ã¨ã”ä¸€ç·’ã«è€ƒãˆã¦ã„ã“ã†ã¨ã„ã†é›†ã¾ã‚Šã§ã™ã€‚ç‰¹ã«ã€è¶…å°åž‹ãƒ»ä½Žæ¶ˆè²»é›»åŠ›ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ ã§ã‚ã‚‹Leafonyã«é–¢ã™ã‚‹æœ€æ–°ã®æŠ€è¡“å‹•å‘ã‚„å„ç¨®ã®å¿œç”¨å±•é–‹ãªã©ã®æƒ…å ±äº¤æ›ã‚’è¡Œãªã†ã“ã¨ã«ã‚ˆã£ã¦ã€ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ä¸–ä»£ã‚’è±Šã‹ã«ã—ã¦ã‚†ãã“ã¨ã‚’æ´»å‹•ã®ä¸€ã¤ã®æŸ±ã«ã—ã¦ã„ã¾ã™ã€‚ã¾ãŸã€ãƒ“ã‚¸ãƒã‚¹ãƒ‹ãƒ¼ã‚ºã‚’æŒã£ãŸæ–¹ã€…ã‚„æŠ€è¡“ã‚·ãƒ¼ã‚ºã‚’æŒã£ãŸæ–¹ã€…ãŒå‡ºä¼šã†å ´ã‚’æä¾›ã™ã‚‹ã“ã¨ã‚‚ç ”ç©¶ä¼šã®é‡è¦ãªæ´»å‹•ã¨ãªã£ã¦ã„ã¾ã™ã€‚çš†æ§˜ã®ãƒˆãƒªãƒªã‚ªãƒ³ãƒŽãƒ¼ãƒ‰ç ”ç©¶ä¼šã¸ã®ã”å‚åŠ ã‚’ãŠå¾…ã¡ã—ã¦ã„ã¾ã™ã€‚ ç ”ç©¶ä¼šå‚åŠ ç™»éŒ²ã®ãƒ¡ãƒªãƒƒãƒˆ1. ç ”ç©¶ä¼šãƒ»æ‡‡è¦ªä¼šã¸ã®å‚åŠ 8æœˆæœ«ã¨ç¿Œå¹´2æœˆæœ«ã®å¹´2å›žã€æœ€æ–°ã®æŠ€è¡“æƒ…å ±ã‚„æ´»ç”¨äº‹ä¾‹ã®ç´¹ä»‹ã‚’è¡Œã†ç ”ç©¶ä¼šãƒ»æ‡‡è¦ªä¼šã‚’é–‹å‚¬ã—ã¦ã„ã¾ã™ã€‚ç ”ç©¶ä¼šã¯ãƒªã‚¢ãƒ«ã¨ã‚ªãƒ³
afnfan 2022/01/15
LTE

IoT
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Robonomics Web Services overview, part 1 â€œDevice softwareâ€
afnfan 2022/01/13
Raspberry Pi

IoT

Polkadot

ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³
ãƒªãƒ³ã‚¯
Nodleâ€™s Crowdloan Plan for the Parachain Auctions on Polkadot
afnfan 2021/11/21
Polkadot

ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³

IoT

Web3.0
ãƒªãƒ³ã‚¯
How to (re)build trust in Web 3.0
afnfan 2021/08/26
ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³

IoT

Nodle
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ã‚½ãƒ©ã‚³ãƒ ä¸»å‚¬ã€Œãƒ©ã‚ºãƒ‘ã‚¤ã‚³ãƒ³ãƒ†ã‚¹ãƒˆã€çµæžœç™ºè¡¨ï¼ - SORACOMå…¬å¼ãƒ–ãƒã‚°
ã“ã‚“ã«ã¡ã¯ã€ã‚½ãƒ©ã‚³ãƒ ã®ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ãƒ»ã‚¨ãƒãƒ³ã‚¸ã‚§ãƒªã‚¹ãƒˆ æ¾ä¸‹ (ãƒ‹ãƒƒã‚¯ãƒãƒ¼ãƒ : Max)ã§ã™ã€‚ ã“ã“ã§ã¯ã€2021å¹´4æœˆï½ž5æœˆã«é–‹å‚¬ã—ãŸã€Œãƒ©ã‚ºãƒ‘ã‚¤ã‚³ãƒ³ãƒ†ã‚¹ãƒˆã€ã®çµæžœã‚’ãŠçŸ¥ã‚‰ã›ã—ã¾ã™ã€‚æ•°å¤šãã®ä½œå“ã‚’ãŠå¯„ã›ã„ãŸã ãã€ã¾ãšæ„Ÿè¬ã—ãŸã„ã¨æ€ã„ã¾ã™ã€‚ã‚ã‚ŠãŒã¨ã†ã”ã–ã„ã¾ã™ï¼ ãã‚Œã§ã¯ã‚³ãƒ³ãƒ†ã‚¹ãƒˆã®æ¦‚è¦ã¨å…±ã«ã€å„è³žã®ç™ºè¡¨ã¨é€²ã‚“ã§ã„ããŸã„ã¨æ€ã„ã¾ã™ã€‚ ã‚½ãƒ©ã‚³ãƒ ä¸»å‚¬ã€Œãƒ©ã‚ºãƒ‘ã‚¤ã‚³ãƒ³ãƒ†ã‚¹ãƒˆã€œIoTã§æ¥å‹™æ”¹å–„ã€ãƒ©ã‚¤ãƒ•ãƒãƒƒã‚¯ã‚’å§‹ã‚ã‚ˆã†ã€œã€ã¨ã¯ï¼Ÿ Raspberry Pi(é€šç§°: ãƒ©ã‚ºãƒ‘ã‚¤)ã¯ã‚»ãƒ³ã‚µãƒ¼ã¨æŽ¥ç¶šã§ãã‚‹å°åž‹ã®ã‚³ãƒ³ãƒ”ãƒ¥ãƒ¼ã‚¿ãƒ¼ã§ã€å€‹äººã®é›»åå·¥ä½œã‹ã‚‰ãƒ“ã‚¸ãƒã‚¹ã«ã¾ã§å¹…åºƒãåˆ©ç”¨ã•ã‚Œã¦ã„ã¾ã™ã€‚é€šä¿¡æ©Ÿèƒ½ã‚’å†…è”µã—ã¦ã„ã‚‹ã“ã¨ã‹ã‚‰ã€ã‚»ãƒ³ã‚µãƒ¼ã¨ã‚¯ãƒ©ã‚¦ãƒ‰ã‚’ã¤ãªã’ã‚‹ã€ŒIoT ãƒ‡ãƒã‚¤ã‚¹ã€ã¨ã—ã¦ã‚‚ç”¨ã„ã‚‰ã‚Œã€IoT ãƒ—ãƒ©ãƒƒãƒˆãƒ•ã‚©ãƒ¼ãƒ SORACOMã¨ã®çµ„ã¿åˆã‚ã›ä¾‹ã‚’ã€ŒIoT ãƒ¬ã‚·ãƒ”ã€ã¨ã—ã¦ç´¹ä»‹ã™ã‚‹ã“ã¨ã‚‚å¤šãã‚ã‚Šã¾ã™ã€‚ ãã®ãƒ©ã‚ºãƒ‘ã‚¤ã¨IoTãƒ—ãƒ©ãƒƒ
afnfan 2021/07/20
IoT

Raspberry Pi
ãƒªãƒ³ã‚¯
https://jp.techcrunch.com/2021/04/19/soracom-iot-raspberry-pi-contest/
afnfan 2021/04/20
IoT

Raspberry Pi

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The Raspberry Pi Internet of Things Toolkit - Now in two flavors
The Raspberry Pi Internet of Things Toolkit - Now in two flavors Cayenne - The Spicy one Bundled WebIOPi as core component Raspberry Pi 2 & 3 support Quick Setup, including 1 TAP install from Mobile Customizable Drag & Drop Dashboard Mobile Application Alert & Trigger Scheduler History WebIOPi - The Original one Control, debug, and use your Pi's GPIO, sensors and converters from a web browser or a
afnfan 2020/12/27
Raspberry Pi

IoT

WebIOPi
ãƒªãƒ³ã‚¯
NoCode ã§é éš”ã‹ã‚‰æ“ä½œã§ãã‚‹ã‚¹ãƒžãƒ¼ãƒˆãƒ›ãƒ¼ãƒ ãƒ‡ãƒã‚¤ã‚¹ã‚’é–‹ç™ºã—ã¦ã¿ãŸ - builders.flashâ˜† - å¤‰åŒ–ã‚’æ±‚ã‚ã‚‹ãƒ‡ãƒ™ãƒãƒƒãƒ‘ãƒ¼ã‚’å¿œæ´ã™ã‚‹ã‚¦ã‚§ãƒ–ãƒžã‚¬ã‚¸ãƒ³ | AWS
ã“ã‚“ã«ã¡ã¯ã€IoT ã‚½ãƒªãƒ¥ãƒ¼ã‚·ãƒ§ãƒ³ã‚¢ãƒ¼ã‚ãƒ†ã‚¯ãƒˆã®é£¯å¡šã§ã™ã€‚ æœ¬è¨˜äº‹ã§ã¯ã€å…¥æ‰‹ã—ã‚„ã™ã„ãƒ‡ãƒã‚¤ã‚¹ã‚’ç”¨ã„ã¦ã€ã‚³ãƒ¼ãƒ‰ã‚’ä¸€è¡Œã‚‚æ›¸ã‹ãšã«ã€ã‚¯ãƒ©ã‚¦ãƒ‰ã‹ã‚‰æ“ä½œã§ãã‚‹ã‚¹ãƒžãƒ¼ãƒˆãƒ›ãƒ¼ãƒ ãƒ‡ãƒã‚¤ã‚¹ã‚’é–‹ç™ºã—ã¦ã¿ã‚ˆã†ã¨æ€ã„ã¾ã™ã€‚ ã‚¹ãƒžãƒ¼ãƒˆãƒ›ãƒ¼ãƒ ãƒ‡ãƒã‚¤ã‚¹ã¨ã—ã¦ã¯ã€Raspberry Pi ã‚’ç”¨ã„ã¾ã™ã€‚ã“ã® Raspberry Pi ã« AWS IoT Greengrass Core Software ã‚’ã‚¤ãƒ³ã‚¹ãƒˆãƒ¼ãƒ«ã—ã€Greengrass ã‚³ãƒã‚¯ã‚¿ ã¨å‘¼ã°ã‚Œã‚‹ã‚‚ã®ã‚’è¨å®šã—ã¾ã™ã€‚ä»Šå›žã¯ Greengrass ã‚³ãƒã‚¯ã‚¿ã®ä¸ã® Raspberry Pi GPIO ã‚³ãƒã‚¯ã‚¿ã‚’åˆ©ç”¨ã—ã¾ã™ã€‚ã“ã®ã‚³ãƒã‚¯ã‚¿ã‚’åˆ©ç”¨ã™ã‚‹ã“ã¨ã§ã€ç°¡å˜ãªè¨å®šã¨ãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã®é€ä¿¡ã®ã¿ã§ Raspberry Pi ã® GPIO ã‚’æ“ä½œã™ã‚‹ã“ã¨ãŒã§ãã¾ã™ã€‚ã¾ãŸãƒ¡ãƒƒã‚»ãƒ¼ã‚¸ã¯ã‚¯ãƒ©ã‚¦ãƒ‰çµŒç”±ã§é€ä¿¡ã§ãã‚‹ãŸã‚ã€é éš”ã‹ã‚‰ãƒ‡ãƒã‚¤ã‚¹ã‚’åˆ¶å¾¡ã§ãã¾ã™ã€‚ã“ã®ã‚ˆã†ã«é éš”ã‹ã‚‰åˆ¶å¾¡ã§ãã‚‹ã‚¹ãƒžãƒ¼ãƒˆ
afnfan 2020/11/16
IoT

aws
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ç„¡ç·šãƒ›ãƒƒãƒˆã‚¹ãƒãƒƒãƒˆã§å ±é…¬ãŒã‚‚ã‚‰ãˆã‚‹ï¼Ÿãƒ¼ãƒ¼ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³æŠ€è¡“ã®ç„¡ç·šãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã€ŒHeliumã€ãŒ1500ä¸‡ãƒ‰ãƒ«èª¿é” - BRIDGEï¼ˆãƒ–ãƒªãƒƒã‚¸ï¼‰ãƒ†ã‚¯ãƒŽãƒã‚¸ãƒ¼ï¼†ã‚¹ã‚¿ãƒ¼ãƒˆã‚¢ãƒƒãƒ—æƒ…å ±
Image Credit : Helium Hotspot web site ãƒ”ãƒƒã‚¯ã‚¢ãƒƒãƒ—ï¼šOur investment in Helium ãƒ‹ãƒ¥ãƒ¼ã‚¹ã‚µãƒžãƒªãƒ¼ï¼šãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³æŠ€è¡“ã‚’ç”¨ã„ã¦ã€ä¸–ç•Œåˆã®P2Pãƒ¯ã‚¤ãƒ¤ãƒ¬ã‚¹ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã®æ§‹ç¯‰ã‚’ç›®æŒ‡ã™ã‚¹ã‚¿ãƒ¼ãƒˆã‚¢ãƒƒãƒ—ã€ŒHeliumã€ãŒ6æœˆ12æ—¥ã€ã‚·ãƒªãƒ¼ã‚ºCãƒ©ã‚¦ãƒ³ãƒ‰ã«ã¦1500ä¸‡ãƒ‰ãƒ«ã‚’èª¿é”ã—ãŸã€‚å‡ºè³‡ã—ãŸã®ã¯MultiCoin Capitalã‚„Union Square venturesã‚’å«ã‚€11ã¤ã®ãƒ•ã‚¡ãƒ³ãƒ‰åŠã³ã‚¨ãƒ³ã‚¸ã‚§ãƒ«ã‹ã‚‰ã€‚åŒç¤¾ã®åˆè¨ˆèª¿é”é¡ã¯5400ä¸‡ãƒ‰ãƒ«ã«åŠã¶ã€‚ Heliumã®ã‚µãƒ¼ãƒ“ã‚¹æ¦‚è¦ã¯éžå¸¸ã«é©æ–°çš„ã ã€‚Heliumã¯ã€ãƒ¦ãƒ¼ã‚¶ãƒ¼ã«ç„¡ç·šé€šä¿¡ãƒ«ãƒ¼ã‚¿ãƒ¼ã‚’æä¾›ã™ã‚‹ã“ã¨ã§ã€èª°ã§ã‚‚ãƒ¯ã‚¤ãƒ¤ãƒ¬ã‚¹ãƒãƒƒãƒˆãƒ¯ãƒ¼ã‚¯ã‚’æ§‹ç¯‰å¯èƒ½ã«ã™ã‚‹ã€‚ãƒ¦ãƒ¼ã‚¶ãƒ¼ã¯Hotspotã¨å‘¼ã°ã‚Œã‚‹ãƒ«ãƒ¼ã‚¿ãƒ¼ã‚’ç«‹ã¦ã‚‹ã¨ã€ãã®ãƒ«ãƒ¼ã‚¿ãƒ¼ã¯ç„¡ç·šé€šä¿¡ã®ãƒ›ã‚¹ãƒˆã¨ãªã‚‹ã ã‘ã§ãªãã€Heliumãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³ã®ãƒŽãƒ¼ãƒ‰ã®å½¹å‰²
afnfan 2020/09/27
IoT

ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³
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ãƒ˜ãƒªã‚¦ãƒ (Helium/HNT)ã®ç‰¹å¾´ãƒ»è©³ç´°ã¨ã¯ï¼Ÿ | NEXTMONEYï½œä»®æƒ³é€šè²¨ãƒ¡ãƒ‡ã‚£ã‚¢
afnfan 2020/09/27
IoT

ãƒ–ãƒãƒƒã‚¯ãƒã‚§ãƒ¼ãƒ³
ãƒªãƒ³ã‚¯
Raspberry Piã‚’ãƒªãƒ¢ã‚³ãƒ³ã«ã—ã¦ã‚¨ã‚¢ã‚³ãƒ³åˆ¶å¾¡ã€ãƒãƒœãƒƒãƒˆã«ã‚‚æè¼‰
Raspberry Piã‚’ãƒªãƒ¢ã‚³ãƒ³ã¨ã—ã¦å‹•ã‹ã—ã€è‡ªå®…ã®å®¶é›»ã‚’è‡ªåœ¨ã«ã‚³ãƒ³ãƒˆãƒãƒ¼ãƒ«ã—ã¾ã—ã‚‡ã†ã€‚ãƒªãƒ¢ã‚³ãƒ³ç”¨ã®ä¾¿åˆ©ãªãƒ„ãƒ¼ãƒ«ã€Œlircã€ã‚’ä½¿ã£ã¦ã€é€šå¸¸ã¯é›£ã—ã„ã‚¨ã‚¢ã‚³ãƒ³ã¾ã§åˆ¶å¾¡ã§ãã‚‹ã‚ˆã†ã«ã—ã¾ã™ã€‚ãƒãƒœãƒƒãƒˆã€ŒRapiroã€ã«è£…ç€ã™ã‚Œã°ã€æ ¼å¥½è‰¯ã„ã‚¢ã‚¯ã‚·ãƒ§ãƒ³ã¨ã¨ã‚‚ã«å®¶é›»ã‚’æ“ã‚Œã¾ã™ã€‚ Raspberry Piã‚’å®¶é›»ã®ãƒªãƒ¢ã‚³ãƒ³ã¨ã—ã¦ä½¿ãˆã‚‹ã‚ˆã†ã«ã—ã¾ã—ã‚‡ã†ã€‚Linuxã‚’æè¼‰ã™ã‚‹Raspberry Piã§ã¯ã€ã‚¤ãƒ³ã‚¿ãƒ¼ãƒãƒƒãƒˆçµŒç”±ã§ã‚¹ãƒžãƒ›ã‹ã‚‰åˆ¶å¾¡ã—ãŸã‚Šã€ã‚»ãƒ³ã‚µãƒ¼ã‚’ä»˜ã‘ã¦ç’°å¢ƒã«åˆã‚ã›ã¦å‹•ã‹ã—ãŸã‚Šãªã©ã„ã‚ã„ã‚ãªå¿œç”¨ãŒã§ãã¾ã™ã€‚ãƒªãƒ¢ã‚³ãƒ³ã®èµ¤å¤–ç·šä¿¡å·ã‚’è¦šãˆã•ã›ã‚Œã°ã€å®¶é›»ã‚’è‡ªåœ¨ã«æ“ã‚Œã¾ã™ã€‚ æœ¬è¨˜äº‹ã§ã¯ã¾ãšRaspberry Piã‚’ã‚¹ã‚¿ãƒ³ãƒ‰ã‚¢ãƒãƒ³ã§å‹•ããƒªãƒ¢ã‚³ãƒ³ã¨ã—ã¦å‹•ã‹ã—ã¾ã™ã€‚å›³1ã®ã‚ˆã†ã«ãƒ–ãƒ¬ãƒƒãƒ‰ãƒœãƒ¼ãƒ‰ã§å›žè·¯ã‚’çµ„ã¿ç«‹ã¦ã¾ã™ã€‚è¦šãˆã•ã›ãŸã„ãƒªãƒ¢ã‚³ãƒ³ã®èµ¤å¤–ç·šä¿¡å·ã‚’èµ¤å¤–ç·šå—ä¿¡ãƒ¢ã‚¸ãƒ¥ãƒ¼ãƒ«ã«å½“ã¦ã€è¨˜éŒ²ã•ã›ã¾ã™ã€‚ãã‚Œã‚’èµ¤å¤–ç·šLEDã§é€ä¿¡ã—ã¦å®¶é›»
afnfan 2020/08/15
Raspberry Pi

IoT
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afnfan 2020/08/14
Raspberry Pi

IoT
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afnfan 2020/08/09
IoT

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afnfan 2020/08/08
IoT

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afnfan 2020/06/15
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afnfan 2020/01/01
Arduino

IoT

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afnfan 2019/08/22
IoT

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blockchain
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Elk: Build blockchain-connected devices in minutes (Canceled)
afnfan 2019/07/29
blockchain

Ethereum

IoT
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IDC Forecasts Worldwide Spending on the Internet of Things to Reach $745 Billion in 2019, Led by the Manufacturing, Consumer, Transportation, and Utilities Sectors
afnfan 2019/07/24
IoT
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