Dragino LHT65 Not Reporting Historical Temp Data

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  • Dragino LHT65

  • Helium Console linking myCayenne

  • I get historical data on all other metrics but not temperature. I’m not sure what the issue is. I have deleted the sensor and re-added it with no change.

Here is the script I’m using. Any help you can provide would be amazing.

function str_pad(byte){
var zero = ‘00’;
var hex= byte.toString(16);
var tmp = 2-hex.length;
return zero.substr(0,tmp) + hex + " ";
}

function Decoder(bytes, port) {
var Ext= bytes[6]&0x0F;
var poll_message_status=(bytes[6]&0x40)>>6;
var Connect=(bytes[6]&0x80)>>7;
var decode = {};

if(Ext==0x09)
{
decode.TempC_DS=parseFloat(((bytes[0]<<24>>16 | bytes[1])/100).toFixed(2));
decode.Bat_status=bytes[4]>>6;
}
else
{
decode.BatV= ((bytes[0]<<8 | bytes[1]) & 0x3FFF)/1000;
decode.Bat_status=bytes[0]>>6;
}

if(Ext!=0x0f)
{
decode.TempC_SHT=parseFloat(((bytes[2]<<24>>16 | bytes[3])/100).toFixed(2));
decode.Hum_SHT=parseFloat((((bytes[4]<<8 | bytes[5])&0xFFF)/10).toFixed(1));
}
if(Connect==‘1’)
{
decode.No_connect=“Sensor no connection”;
}

if(Ext==‘0’)
{
decode.Ext_sensor =“No external sensor”;
}
else if(Ext==‘1’)
{
decode.Ext_sensor =“Temperature Sensor”;
decode.TempC_DS=parseFloat(((bytes[7]<<24>>16 | bytes[8])/100).toFixed(2));
}
else if(Ext==‘4’)
{
decode.Work_mode=“Interrupt Sensor send”;
decode.Exti_pin_level=bytes[7] ? “High”:“Low”;
decode.Exti_status=bytes[8] ? “True”:“False”;
}
else if(Ext==‘5’)
{
decode.Work_mode=“Illumination Sensor”;
decode.ILL_lx=bytes[7]<<8 | bytes[8];

}
else if(Ext==‘6’)
{
decode.Work_mode=“ADC Sensor”;
decode.ADC_V=(bytes[7]<<8 | bytes[8])/1000;
}
else if(Ext==‘7’)
{
decode.Work_mode=“Interrupt Sensor count”;
decode.Exit_count=bytes[7]<<8 | bytes[8];
}
else if(Ext==‘8’)
{
decode.Work_mode=“Interrupt Sensor count”;
decode.Exit_count=bytes[7]<<24 | bytes[8]<<16 | bytes[9]<<8 | bytes[10];
}
else if(Ext==‘9’)
{
decode.Work_mode=“DS18B20 & timestamp”;
decode.Systimestamp=(bytes[7]<<24 | bytes[8]<<16 | bytes[9]<<8 | bytes[10] );
}
else if(Ext==‘15’)
{
decode.Work_mode=“DS18B20ID”;
decode.ID=str_pad(bytes[2])+str_pad(bytes[3])+str_pad(bytes[4])+str_pad(bytes[5])+str_pad(bytes[7])+str_pad(bytes[8])+str_pad(bytes[9])+str_pad(bytes[10]);
}

if(poll_message_status===0)
{
if(bytes.length==11)
{
return decode;
}
}

}

Are you using the above script in the helium console function and added the device as Dragino LHT56 on the cayenne dashboard?

Yes, correct

you dont need to use any decoder in helium console. we already have the decoder setup in the cayenne for each device. You just need to add the device.

I’ve deleted the custom code from the Helium Console but have not seen any changes on my Cayenne dashboard historical temp data. Should I delete the device and reload it?

Thanks

1 Like

Give it a try by deleteing and re-adding the device.