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BLE on React Native
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januswel
February 08, 2018
Programming
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BLE on React Native
some tips to use BLE on React Native
januswel
February 08, 2018
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Transcript
BLE ON REACT NATIVE REACT NATIVE MEETUP #7 2018/01/22 BY
JANUSWEL
About speaker KBOVTXFM TPGUXBSFFOHJOFFS !$VSF"QQ
CO checker
What is CO checker? "EFWJDFUPNFBTVSFDPODFOUSBUJPOTPG$0JOUIF CSFBUI 5IFNFBTVSFEWBMVFTBSFJNQPSUBOUJOEFYUPDVSF OJDPUJOFBEEJDUJPO #VUFYJTUJOHQSPEVDUTBSFWFSZFYQFOTJWF TPEFWJDFT
BSFFRVJQQFEJOPOMZIPTQJUBMTDMJOJDT 8FEFDJEFEUPQSPEVDFBOEEJTUSJCVUFEFWJDFTUP QBUJFOUT
Layout 3FBE8SJUF $0WBMVFT 4VCNJU $0WBMVFT
Layout 3FBE8SJUF $0WBMVFT 4VCNJU $0WBMVFT 5PEBZ`TUPQJD
In CureApp… 8FXPSLFEXJUIIBSEXBSFWFOEPS IBSEXBSFEFTJHO pSNXBSFEFWFMPQNFOU $VSF"QQJTSFTQPOTJCMFGPSUIFTPGUXBSFPG TNBSUQIPOFEFWFMPQNFOU
BLE chips $IPPTFPOFGSPNGPMMPXJOHDBUBMPH IUUQTGBCLVSBHJUCPPLTJPCMFEPDT DPOUFOUNPEVMFIUNM 6TFDIJQTIBWFDFSUJpDBUJPOPGDPNQMJBODF XJUIUFDIOJDBMTUBOEBSET l&WBMVBUJPOCPBSEzTBSFUIFCFTUDIPJDFUPHFU TUBSUFE
BLE scanners "OESPJE#-&4DBOOFS IUUQTQMBZHPPHMFDPNTUPSFBQQTEFUBJMT JEDPNNBDEPNCMFCMFTDBOOFSIMKB J04#-&YQMS IUUQTJUVOFTBQQMFDPNKQBQQCMFYQMS JE NU
Module to use BLE SFBDUOBUJWFCMFNBOBHFS IUUQTHJUIVCDPNJOOPWFJUSFBDUOBUJWF CMFNBOBHFS SFBDUOBUJWFCMFJTOPUNBJOUBJOFEOPMPOHFS
Words $FOUSBM %FWJDFTUPVTFTFSWJDFT 4FFBTDMJFOUTJODMJFOUTFSWFSNPEFM 1FSJQIFSBM %FWJDFTUPQSPWJEFTFSWJDFT 4FFBTTFSWFSTJODMJFOUTFSWFSNPEFM
Words $IBSBDUFSJTUJD 4UPSFUP3FBE8SJUFWBMVFT #POEJOH 'FBUVSFTGPSTFDVSJUZ "WBJMBCMF&ODSZQUJPO"VUIFOUJDBUJPO "MTPDBMMFEBTl1BJSJOHz
Read Peripheral Central
Write Peripheral Central
Notify Peripheral Central
Indicate Peripheral Central
Steps to communicate 4FFEPDVNFOUTPGSFBDUOBUJWFCMFNBOBHFS 4DBOQFSJQIFSBM T $POOFDUUPBEJTDPWFSFEQFSJQIFSBM 3FBE8SJUF/PUJGZ*OEJDBUF
CureApp Use Case 3FBE $0DIBSBDUFSJTUJD XJUIFODSZQUJPO Peripheral Central
React Integration 8FVTF&WFOU&NJUUFS IUUQTHJUIVCDPNBTZODMZ&WFOU&NJUUFS &NJUUJOHFWFOUTXIFO 4DBOOJOHQFSJQIFSBMTJTEPOF 3FBEJTEPOFGSPNQFSJQIFSBMT FUDʜ
React Integration 4FUFWFOUIBOEMFSTJO3FBDUDPNQPOFOU DPNQPOFOU%JE.PVOU $POTVNFFWFOUTXJUITFU4UBUF3FEVYBDUJPOT JOFWFOUIBOEMFST
1 class BleManager extends EventEmitter2 { 2 startScanning() { /*
snip */ } 3 connectToPeripheral() { /* snip */ } 4 async readCharacteristic() { /* snip */ } 5 async startMeasuring() { 6 const value = await this.readCharacteristic() 7 this.emit('READ', value) 8 } 9 } 1 class SomeComponent extends React.Component { 2 handleRead(value) { 3 this.props.actions.storeValues(value) 4 } 5 componentDidMount() { 6 this.props.bleManager.on( 7 'READ', 8 this.handleRead.bind(this) 9 ) 10 } 11 render() { 12 /* render buttons to 13 * - startScanning 14 * - connectToPeripheral, 15 * - startMeasuring */ 16 } 17 }
Problems 4PNF"OESPJEEFWJDFTBSFUPPTMPXUP DPOTVNFFWFOUT "EEXBJUT +VTUBGUFSEFWJDFTBSFCPPUFE DIBSBDUFSJTUJD WBMVFTBSFOPUJOJUJBMJ[FEZFU 8SJUFJOJUJBMWBMVFTUPFBDIDIBSBDUFSJTUJDT CFGPSF3FBE
Problems %POPUGPSHFUlEJTDPOOFDUzGPSFSSPSGSFF EFWFMPQNFOU 5IFSFBSFGFXEFTDSJQUJPOTBCPVUCPOEJOH 5SZBOEFSSPS IUUQXXXTJMFYKQCMPHXJSFMFTT CMVFUPPUIIUNM
Summary 6TJOH#-&JTFBTZPO3FBDU/BUJWF 8FDBOVTFJ04"OESPJEBTQFSJQIFSBMT OPCMFJTBWBJMBCMFUPP IUUQTHJUIVCDPNTBOEFFQNJTUSZOPCMF -FU`THFUTUBSUFE
References IUUQTGBCLVSBHJUCPPLTJPCMFEPDTDPOUFOU NPEVMFIUNM IUUQTHJUIVCDPNJOOPWFJUSFBDUOBUJWFCMF NBOBHFS IUUQXXXTJMFYKQCMPHXJSFMFTT CMVFUPPUIIUNM