RAK7204 LoRa Environmental Node
RAK7204 LoRa Environmental Node
RAK7204 LoRa Environmental Node

RAK7204 LoRa Environmental Node

Regular price $55.00 $0.00
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Product Description

The RAK7204 is a LoRaWAN node that serves as an environmental monitoring station. The high-precision sensors, can measure changes in temperature, humidity, gas pressure and provide an indoor air quality index.
All the accumulated data can be sent to a LoRaWAN Gateway in order for it to be forwarded to the Cloud. Because of its design, the RAK7204 can achieve a very low power consumption rate, which with the included non-rechargeable battery allows for 2+ years of operation.
The firmware has built-in functionality that allows the user to adjust the sampling interval of the sensors and the transmission cycle.
Last but not least, the RAK7204 adopts a highly integrated design, fitting the electronics and battery within 90mm x 85mm x 34mm casing.

Key Features

  • Measurement of a variety of environmental parameters
    • Temperature, Humidity, Pressure and Indoor Air Quality (IAQ)
  • Sensor
    • BOSCH BME680 Integrated Environmental Unit
  • Compact size
    • Built-in LoRa Antenna, swapable battery
    • Easy to mount and maintain
  • Low power operation
    • Standby current of less than 15 uA
    • Adjustable sampling and transmission interval
  • Battery
    • Replaceable 3500 mAh high capacity lithium battery with a battery life of more than 2 years
  • LoRaWAN 1.0.2 fully compliant

Specification

Working Temperature

Parameter

Min

Typical

Max

 Operating Temperature

-40℃

+25℃

+85℃

Storage Temperature

-40℃

+25℃

+85℃


Power Consumption

Parameter Current Unit
Standby Current <15 uA
Current in Sensors Working Mode <10 mA
Current in LoRa Transmission Mode <150 mA


Temperature Sensor Specifications

Parameter Min Typical Max
Temperature Range -40℃ +25℃ +85℃
Accuracy 0.5℃
Output Resolution 0.01℃


Humidity Sensor Specifications

Parameter Min Typical Max
Humidity Range 0% r.H 100 % r.H.
Accuracy +-3% r.H.
Output Resolution 0.008% r.H.


Gas Pressure Sensor Specifications

Parameter Min Typical Max
Range 300 hPa 300 hPa
Accuracy +-0.6 hPa
Output Resolution 0.18 Pa.


IAQ Sensor Specifications

Parameter Min Typical Max
IAQ Range 0 500
Accuracy 15
Output Resolution 1


Power Supply Battery Specifications

Parameter Max Unit
Nominal Battery Voltage 3.6 V
Battery Specification ER18505
Nominal Capacity 3500 mAh
Temperature Range -55~85 ºC
Battery Dimensions 18*50.5 mm


Note :
1. The included battery is non rechargeable. In case you need to plug in the Micro USB port for the purpose of configuring the node, the battery should stay plugged.

2. The pin distance of the battery connector is 2.0mm. When choosing a battery, attention should be paid to the consistency of positive and negative poles. Reverse connection or short circuit may damage the device and may cause overheating and combustion of the battery. Therefore, when replacing the battery, it is necessary to strictly confirm whether the positive and negative poles of the connector are correct.

  • What is the interval for sending data and the SF that needs to be configured to achieve the expected 2 years of operation with the battery? I need 5 minutes interval with at least SF10 (better SF11) . Will it last > 2 years?

    Hello, Battery life of more than 2 years is expected if you are transmitting at 15 minute data transmission intervals. 
    This being said it will most definitelly not last 2 years if you are transmitting in 5 min intervals. I think the SF in this case will be irrelevant as the time interval alone will reduce the battery life significantly.
    However this is prediction based on a shorter period of opperation, we have no way to test it for a 2 year intereval, so it might be possible, however we can not claim it :)

    Regards
    Vladislav

  • Is there any description of the jumpers in the device? Thanks!

    Hello Sir,

    We are finalizing the document, apologies. Could you please post your request on the forums, I think they will be able to help there.
    http://forum.rakwireless.com

    Regards
    Vladislav

  • Hi, where can I find a payload decoder for this device for TTN? Thanks!

    Hello Sir,

    I am not sure there is one yet. Could you please post your question on the forums:

    forum.rakwireless.com

    Better have the whole community be aware, perhaps someone can provide a solution I can not.

    Regards
    Vladislav

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