TTN Smart Sensor (Elspina)

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function decodeUplink(input) { // Decode an uplink message from a buffer // (array) of bytes to an object of fields. var port = input.fPort; var bytes = input.bytes; var switch_status = (bytes[0]>>4)&0xFF; var value=(bytes[0]<<8 | bytes[1]) & 0x0FFF; var batV=value/1000;//Battery,units:V if(bytes.length == 4) { var tnomd = (bytes[2]<<8 | bytes[3]) & 0xFFFF; return { status:switch_status, Bat:batV , TNOMD:tnomd, }; } else if(bytes.length == 9) { var tode = (bytes[2]<<16 | bytes[3]<<8 | bytes[4]) & 0xFFFFFF; var ldod = (bytes[5]<<16 | bytes[6]<<8 | bytes[7]) & 0xFFFFFF; var alarm = bytes[8]; return { status:switch_status, Bat:batV , TODE:tode, LDOD:ldod, ALARM:alarm, }; } else if(bytes.length == 19) { var tode1 = (bytes[2]<<16 | bytes[3]<<8 | bytes[4]) & 0xFFFFFF; var ldod1 = (bytes[5]<<16 | bytes[6]<<8 | bytes[7]) & 0xFFFFFF; var alarm1 = bytes[8]; var tnomd1 = (bytes[9]<<8 | bytes[10]) & 0xFFFF; value=bytes[11]<<8 | bytes[12]; var X = 0; if(bytes[11]>>4 == 0x0F) X=((value-0xFFFF)/100).toFixed(2); else X=(value/100).toFixed(2); value=bytes[13]<<8 | bytes[14]; var Y=0; if(bytes[13]>>4 == 0x0F) Y=((value-0xFFFF)/100).toFixed(2); else Y=(value/100).toFixed(2); value=bytes[15]<<8 | bytes[16]; var Z=0; if(bytes[15]>>4 == 0x0F) Z=((value-0xFFFF)/100).toFixed(2); else Z=(value/100).toFixed(2); value=bytes[17]<<8 | bytes[18]; var temp_DS18B20=0;//DS18B20,temperature,units:°C if(bytes[17]>>4 == 0x0F) temp_DS18B20=((value-0xFFFF)/10).toFixed(1); else temp_DS18B20=(value/10).toFixed(1); return { data:{ status:switch_status, Bat:batV , TODE:tode1, LDOD:ldod1, ALARM:alarm1, TNOMD:tnomd1, X:X, Y:Y, Z:Z, temp_ds:temp_DS18B20 }, }; } }