> For the complete documentation index, see [llms.txt](https://enless.gitbook.io/centre-aide/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://enless.gitbook.io/centre-aide/ressources/ressources-en/lorawan-gateway/third-party-sensor-decoders/nano-sensorics-ampsense.md).

# Nano Sensorics Ampsense

### Codec

{% code title="nano-sensorics-ampsense.codec" lineNumbers="true" expandable="true" %}

```js
function decodeUplink(input) {
  if(input.fPort === 10)
  {  
    var bytes = input.bytes
    return {
      data: {
            Date_time: calculateDateTime(bytes[0], bytes[1],bytes[2],bytes[3],bytes[4],bytes[5],bytes[6]),
            kWh_Imp:     (calculateInt(bytes[7], bytes[8], bytes[9] , bytes[10])/100),
            kWh_Exp:     (calculateInt(bytes[11], bytes[12], bytes[13], bytes[14])/100),
            kVarh_Imp:     (calculateInt(bytes[15], bytes[16], bytes[17], bytes[18])/100),
            kVarh_Exp:     (calculateInt(bytes[19], bytes[20], bytes[21], bytes[22])/100),    
            kVAh_Exp:    (calculateInt(bytes[23], bytes[24], bytes[25], bytes[26])/100),        
            I1_DMD:        calculate(bytes[27], bytes[28], bytes[29], bytes[30]),         
            I2_DMD:        calculate(bytes[31], bytes[32], bytes[33], bytes[34]),
            I3_DMD:        calculate(bytes[35], bytes[36], bytes[37], bytes[38]),            
            P_DMD:        calculate(bytes[39], bytes[40], bytes[41], bytes[42]),
            Q_DMD:        calculate(bytes[43], bytes[44], bytes[45], bytes[46]),    
            S_DMP:        calculate(bytes[47], bytes[48], bytes[49], bytes[50]),
            //TestDataBytes:  testDataBytes(bytes),
      },
      warnings: [],
      errors: []
    };
  }
  else
  {
    return {
      data: input.bytes,
      warnings: [],
      errors: []
    }; 
  }
}
 
function calculate(H1, H2, H3, H4){
 
    //var regex = /[0-9A-Fa-f]{8}/g;
 
    var data = new Uint8Array(4);
 
    data[0] = H4; 
 
    data[1] = H3; 
 
    data[2] = H2; 
 
    data[3] = H1; 
    
    var f32 = new Float32Array(data.buffer);
 
    var f32value = f32[0].toFixed(5);
 
    return f32value;
 
}
function calculateInt(H1, H2, H3, H4){
 
    //var regex = /[0-9A-Fa-f]{8}/g;
 
    var data = new Uint8Array(4);
 
    data[0] = H4; 
 
    data[1] = H3; 
 
    data[2] = H2; 
 
    data[3] = H1; 
    
    var f32 = new Int32Array(data.buffer);
 
    var f32value = f32[0].toFixed(5);
 
    return f32value;
 
}
 
function calculateDateTime(H1, H2, H3, H4, H5, H6, H7){
 
 
    var date;
    var HH1 = parseInt (H1);
    var HH2 = parseInt (H2);
    var HH3 = parseInt (H3);
    var HH4 = parseInt (H4);
    var HH5 = parseInt (H5);
    var HH6 = parseInt (H6);
    var HH7 = parseInt (H7);
    
    date_time = "" + HH2 + "-" + HH3 + "-" + HH4 + " " + HH5 + ":" + HH6 + ":" + HH7
    return date_time;
 
}
 
 
function testDataBytes (inputBytes) {
    var i = 0;
    var str = "";
    
    while (i < inputBytes.length) {
    
        y =  i + 1 ;
        strTmp = inputBytes[i];
        strTmp = strTmp.toString(16);
      str = str + " " + y  + "= "  + strTmp + "; ";        i++;
 
    }
    
    return str;
    
}

```

{% endcode %}

### Mapping

{% code title="nano-sensorics-ampsense.mapping.json" lineNumbers="true" expandable="true" %}

```json
{
  "uplink": {
    "fields": [
      {
        "name": "Date_time",
        "description": "Date and time",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      },
      {
        "name": "kWh_Imp",
        "description": "Imported energy",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "kWh",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      },
      {
        "name": "kWh_Exp",
        "description": "Exported energy",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "kWh",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      },
      {
        "name": "kVarh_Imp",
        "description": "Imported active energy",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "kVarh",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      },
      {
        "name": "kVarh_Exp",
        "description": "Exported active energy",
        "data_type": "NUMBER",
        "numeric_type": "UINT16",
        "access_mode": "R",
        "unit": "kVarh",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      },
      {
        "name": "kVAh_Exp",
        "description": "Exported reactive energy",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "kVAh",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "factor": 1
          }
        }
      }
    ]
  },
  "lns_metadata": {
    "fields": [
      {
        "name": "rssi",
        "description": "Received RSSI",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "dBm",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "offset": 1,
            "factor": 1
          }
        }
      },
      {
        "name": "snr",
        "description": "Received SNR",
        "data_type": "NUMBER",
        "numeric_type": "INT16",
        "access_mode": "R",
        "unit": "dB",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "offset": 2,
            "factor": 1
          }
        }
      },
      {
        "name": "sf",
        "description": "Spreading Factor",
        "data_type": "NUMBER",
        "numeric_type": "UINT8",
        "access_mode": "R",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "offset": 3,
            "factor": 1
          }
        }
      },
      {
        "name": "minutesSinceLastRx",
        "description": "Minutes since last reception",
        "data_type": "NUMBER",
        "numeric_type": "UINT16",
        "access_mode": "R",
        "unit": "min",
        "protocol_specific": {
          "modbus": {
            "register_type": "input",
            "offset": 4,
            "factor": 1
          }
        }
      }
    ]
  },
  "config": {
    "fields": []}
  }
}
```

{% endcode %}


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