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Current and energy meter

YOBIIQ EM2101 LoRaWAN decoder and payload format

The YOBIIQ EM2101 is a LoRaWAN current and energy meter that reports current, power, voltage and digital inputs.

YOBIIQ EM2101
Official decoderProduct page

Payload format

An uplink from the device as it arrives at the network server, and what the official decoder returns for it. Examples come from the decoder's own test cases.

Example 1 · fPort 50

Payload (hex)

FF 3C 00 64 FF 3D 00 FA FF 3E 0E 10 FF 3F 00 3C FF 40 00 3C FF 41 00 3C FF 42 00 3C FF 43 02 58 FF 44 03

Decoded (JSON)

{
  "currentLimitFallback": {
    "data": 10,
    "unit": "A"
  },
  "voltageLimitFallback": {
    "data": 250,
    "unit": "V"
  },
  "powerLimitFallback": {
    "data": 3600,
    "unit": "W"
  },
  "deactivationDelayFallback": {
    "data": 60,
    "unit": "s"
  },
  "activationDelayFallback": {
    "data": 60,
    "unit": "s"
  },
  "offsetCurrentFallback": {
    "data": 6,
    "unit": "A"
  },
  "offsetDelayFallback": {
    "data": 60,
    "unit": "s"
  },
  "resetTimeFallback": {
    "data": 600,
    "unit": "s"
  },
  "resetAmountFallback": 3,
  "codecVersion": "1.0.1",
  "genericModel": "EM2101",
  "productCode": "P1002009",
  "manufacturer": "YOBIIQ B.V."
}
FieldValue
currentLimitFallback.data10
currentLimitFallback.unitA
voltageLimitFallback.data250
voltageLimitFallback.unitV
powerLimitFallback.data3600
powerLimitFallback.unitW
deactivationDelayFallback.data60
deactivationDelayFallback.units
activationDelayFallback.data60
activationDelayFallback.units
offsetCurrentFallback.data6
offsetCurrentFallback.unitA
offsetDelayFallback.data60
offsetDelayFallback.units
resetTimeFallback.data600
resetTimeFallback.units
resetAmountFallback3
codecVersion1.0.1
genericModelEM2101
productCodeP1002009
manufacturerYOBIIQ B.V.

Example 2 · fPort 1

Payload (hex)

01 01 67 3C 29 24 02 03 67 3C 25 DC 03 04 00 00 00 00 04 05 00 00 E9 D0 0B 0A 00

Decoded (JSON)

{
  "timestamp": 1731995940,
  "dataloggerTimestamp": 1731995100,
  "activeEnergyImportL1T1": {
    "data": 0,
    "unit": "Wh"
  },
  "activeEnergyImportL1T2": {
    "data": 59856,
    "unit": "Wh"
  },
  "modbusErrorCode": 0,
  "codecVersion": "1.0.1",
  "genericModel": "EM2101",
  "productCode": "P1002009",
  "manufacturer": "YOBIIQ B.V."
}
FieldValue
timestamp1731995940
dataloggerTimestamp1731995100
activeEnergyImportL1T1.data0
activeEnergyImportL1T1.unitWh
activeEnergyImportL1T2.data59856
activeEnergyImportL1T2.unitWh
modbusErrorCode0
codecVersion1.0.1
genericModelEM2101
productCodeP1002009
manufacturerYOBIIQ B.V.

Specifications

Manufacturer
YOBIIQ
Model
EM2101
Type
Current and energy meter
Measures
current, power, voltage, digital inputs
LoRaWAN regions
EU863-870

Connect it to Cloud Studio IoT

  1. 1

    Register the device in your network server

    Add it to The Things Stack, ChirpStack, Actility ThingPark or LORIOT with its DevEUI, JoinEUI and AppKey and the frequency plan of your region.

  2. 2

    Apply the decoder

    In The Things Stack, pick the model from the device repository and its decoder is applied for you. In ChirpStack v4, paste the official decoder as the device profile's JavaScript codec.

  3. 3

    Connect the network server to Cloud Studio IoT

    Set up the integration once per network server; every device registered there then reaches Cloud Studio IoT with its decoded values.

  4. 4

    Build dashboards and alarms

    The decoded fields become device variables for dashboards, alarms by email or SMS, and scheduled reports.

See your YOBIIQ EM2101 on a dashboard

Start a free trial, add the device with its DevEUI and get dashboards and alarms from its next uplink.

Talk to us

Frequently asked questions

Device facts and decoder examples: The Things Network Device Repository (Apache-2.0) · commit 7693223, imported 2026-10-05.