BLE on React Native

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

BLE on React Native

BLE on React Native

januswel

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