The things node : units of measurement

End Devices (Nodes)
1

Hi I need to know the units of measurement about these fields send by the things node :

{
“battery”: 3654,
“event”: “button”,
“light”: 35,
“temperature”: 27.88
}

Thank you

2

what do you think yourself… :sunglasses:

let’s start with battery -

3

Ok I think battery mA, temperature °C, and light cd ?

11

Hi I am newbie , I need to know battery unit of measurement that TTN console shows :
{
“battery”: 3518,
“event”: “interval”,
“light”: 45,
“temperature”: 29
}

3518 mAh ??

12

3518mv = ~ 3.5V

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13

so, isn’t a measurement about battery capacity ? The decrease of this battery value what does it means ?

What is min Volt threshold that enable to work this TNN in default mode (basic sketch, default payload)?

14

Depending on the type of battery you are using you can tell from the voltage how full the battery still is. For example a normal 3.7V LiPo starts around 4.2V drops pretty fast to 3.9V and then drops slowly from 3.9V and 3.5V and after that pretty fast down to around 2.5V.

1 Like