ble-server/gdata-characteristic.js

41 lines
960 B
JavaScript

const bleno = require('bleno')
const config = require('./config.json')
var tmp = []
class DataCharacteristic extends bleno.Characteristic {
constructor() {
super({
uuid: config.uuid.service.func.data,
properties: ['write', 'writeWithoutResponse'],
descriptors: [
new bleno.Descriptor({
uuid: '8888',
value: 'Now'
})
]
})
}
onWriteRequest(data, offset, withoutResponse, callback) {
console.log(`offset :: ${offset} , withoutRes :: ${withoutResponse}`)
console.log(`get data`, data)
if(data.length == 1 && data[0] == 0x00){
tmp = []
console.log(data[0])
}else if(data.length == 1 && data[0] == 0xff){
//console.log(tmp)
console.log(new Buffer(tmp).toString())
}else{
tmp = [...tmp, ...data.slice(2, data.length)]
}
if (!withoutResponse) {
console.log('send response')
callback(this.RESULT_SUCCESS)
}
}
}
module.exports = DataCharacteristic