TTN Smart Sensor (Sensative)

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function Decoder(bytes, port) { // Decode an uplink message from a buffer // (array) of bytes to an object of fields. function decodeFrame(type, target) { switch(type & 0x7f) { case 0: target.emptyFrame = {}; break; case 1: // Battery 1byte 0-100% target.battery = {}; target.battery = bytes[pos++]; break; case 2: // TempReport 2bytes 0.1degree C target.temperature = {}; // celcius 0.1 precision target.temperature.value = ((bytes[pos] & 0x80 ? 0xFFFF<<16 : 0) | (bytes[pos++] << 8) | bytes[pos++]) / 10; break; case 3: // Temp alarm target.tempAlarm = {}; // sends alarm after >x< target.tempAlarm.highAlarm = !!(bytes[pos] & 0x01); // boolean target.tempAlarm.lowAlarm = !!(bytes[pos] & 0x02); // boolean pos++; break; case 4: // AvgTempReport 2bytes 0.1degree C target.averageTemperature = {}; target.averageTemperature.value = ((bytes[pos] & 0x80 ? 0xFFFF<<16 : 0) | (bytes[pos++] << 8) | bytes[pos++]) / 10; break; case 5: // AvgTemp alarm target.avgTempAlarm = {}; // sends alarm after >x< target.avgTempAlarm.highAlarm = !!(bytes[pos] & 0x01); // boolean target.avgTempAlarm.lowAlarm = !!(bytes[pos] & 0x02); // boolean pos++; break; case 6: // Humidity 1byte 0-100% in 0.5% target.humidity = {}; target.humidity.value = bytes[pos++] / 2; // relativeHumidity percent 0,5 break; case 7: // Lux 2bytes 0-65535lux target.lux = {}; target.lux.value = ((bytes[pos++] << 8) | bytes[pos++]); // you can the lux range between two sets (lux1 and 2) break; case 8: // Lux 2bytes 0-65535lux target.lux2 = {}; target.lux2.value = ((bytes[pos++] << 8) | bytes[pos++]); break; case 9: // DoorSwitch 1bytes binary target.door = {}; target.door.value = !!bytes[pos++]; // false = door open, true = door closed break; case 10: // DoorAlarm 1bytes binary target.doorAlarm = {}; target.doorAlarm.value = !!bytes[pos++]; // boolean true = alarm break; case 11: // TamperReport 1bytes binary (was previously TamperSwitch) target.tamperReport = {}; target.tamperReport.value = !!bytes[pos++]; break; case 12: // TamperAlarm 1bytes binary target.tamperAlarm = {}; target.tamperAlarm.value = !!bytes[pos++]; break; case 13: // Flood 1byte 0-100% target.flood = {}; target.flood.value = bytes[pos++]; // percentage, relative wetness break; case 14: // FloodAlarm 1bytes binary target.floodAlarm = {}; target.floodAlarm.value = !!bytes[pos++]; // boolean, after >x< break; case 15: // oilAlarm 1bytes analog target.oilAlarm = {}; target.oilAlarm.value = bytes[pos]; target.foilAlarm = {}; // Compatibility with older strips target.foilAlarm.value = !!bytes[pos++]; break; case 16: // UserSwitch1Alarm, 1 byte digital target.userSwitch1Alarm = {}; target.userSwitch1Alarm.value = !!bytes[pos++]; break; case 17: // DoorCountReport, 2 byte analog target.doorCount = {}; target.doorCount.value = ((bytes[pos++] << 8) | bytes[pos++]); break; case 18: // PresenceReport, 1 byte digital target.presence = {}; target.presence.value = !!bytes[pos++]; break; case 19: // IRProximityReport target.IRproximity = {}; target.IRproximity.value = ((bytes[pos++] << 8) | bytes[pos++]); break; case 20: // IRCloseProximityReport, low power target.IRcloseproximity = {}; target.IRcloseproximity.value = ((bytes[pos++] << 8) | bytes[pos++]); break; case 21: // CloseProximityAlarm, something very close to presence sensor target.closeProximityAlarm = {}; target.closeProximityAlarm.value = !!bytes[pos++]; break; case 22: // DisinfectAlarm target.disinfectAlarm = {}; target.disinfectAlarm.value = bytes[pos++]; if (target.disinfectAlarm.value === 0) target.disinfectAlarm.state='dirty'; if (target.disinfectAlarm.value == 1) target.disinfectAlarm.state='occupied'; if (target.disinfectAlarm.value == 2) target.disinfectAlarm.state='cleaning'; if (target.disinfectAlarm.value == 3) target.disinfectAlarm.state='clean'; break; case 80: target.humidity = {}; target.humidity.value = bytes[pos++] / 2; target.temperature = {}; target.temperature = ((bytes[pos] & 0x80 ? 0xFFFF<<16 : 0) | (bytes[pos++] << 8) | bytes[pos++]) / 10; break; case 81: target.humidity = {}; target.humidity.value = bytes[pos++] / 2; target.averageTemperature = {}; target.averageTemperature.value = ((bytes[pos] & 0x80 ? 0xFFFF<<16 : 0) | (bytes[pos++] << 8) | bytes[pos++]) / 10; break; case 82: target.door = {}; target.door.value = !!bytes[pos++]; // true = door open, false = door closed target.temperature = {}; target.temperature = ((bytes[pos] & 0x80 ? 0xFFFF<<16 : 0) | (bytes[pos++] << 8) | bytes[pos++]) / 10; break; case 112: // Capacitance Raw Sensor Value 2bytes 0-65535 target.capacitanceFlood = {}; target.capacitanceFlood.value = ((bytes[pos++] << 8) | bytes[pos++]); // should never trigger anymore break; case 113: // Capacitance Raw Sensor Value 2bytes 0-65535 target.capacitancePad = {}; target.capacitancePad.value = ((bytes[pos++] << 8) | bytes[pos++]); // should never trigger anymore break; case 110: pos += 8; break; case 114: // Capacitance Raw Sensor Value 2bytes 0-65535 target.capacitanceEnd = {}; target.capacitanceEnd.value = ((bytes[pos++] << 8) | bytes[pos++]); // should never trigger anymore break; } } var decoded = {}; var pos = 0; var type; switch(port) { case 1: if(bytes.length < 2) { decoded.error = 'Wrong length of RX package'; break; } decoded.historySeqNr = (bytes[pos++] << 8) | bytes[pos++]; decoded.prevHistSeqNr = decoded.historySeqNr; while(pos < bytes.length) { type = bytes[pos++]; if(type & 0x80) decoded.prevHistSeqNr--; decodeFrame(type, decoded); } break; case 2: var now = new Date(); decoded.history = {}; if(bytes.length < 2) { decoded.history.error = 'Wrong length of RX package'; break; } var seqNr = (bytes[pos++] << 8) | bytes[pos++]; while(pos < bytes.length) { decoded.history[seqNr] = {}; decoded.history.now = now.toUTCString(); secondsAgo = (bytes[pos++] << 24) | (bytes[pos++] << 16) | (bytes[pos++] << 8) | bytes[pos++]; decoded.history[seqNr].timeStamp = new Date(now.getTime() - secondsAgo*1000).toUTCString(); type = bytes[pos++]; decodeFrame(type, decoded.history[seqNr]); seqNr++; } } return decoded; } function decodeUplink(input) { return { data : Decoder(input.bytes, input.fPort), }; } function normalizeUplink(input) { var data = {}; if (input.data && input.data.temperature && input.data.temperature.value) { data.air = { temperature: input.data.temperature.value }; } if (input.data && input.data.battery) { data.battery = input.data.battery; } return { data: data }; }