Lovelace Lightning Detector Card for AS3935

IronSheep · July 26, 2020, 12:38am

This Lovelace card for Home Assistant displays lightning detections from you own inexpensive AS3935 Lightning Detection Sensor.

Install the sensor interface script the Raspberry Pi connected to your AS3935 sensor board.

Live Cards

GitHub: The card: Lovelace Lightning Detector Card shows data reported by your sensor.

GitHub: The Sensor Script lightning-detector-MQTT2HA-Daemon interfaces with the AS3935 sensor on your RPi and sends the accumulated data via MQTT to your HA installation.

Links to videos showing detections: (pls, pardon the lack of sound on the videos)

tom_l · July 26, 2020, 3:25am

Can this be made to work with other lightning sensors that have direction, range and count (no kA)?

IronSheep · August 1, 2020, 5:25am

As of this moment, one would have to adapt my lightning-detector-MQTT2HA-Daemon script to pull data from one of those services, accumulate it as needed for this card, and then send the data to the card. It can be done. I’m writing a document which I’ll add to that same repo detailing how the data accumulated and what is sent to the card and why. With this document in hand (again, coming soon) it wouldn’t be a difficult task to make an adapter to feed this card.

I’ll post here to let you know when the new document has arrived and how to get to it.

snicker · August 2, 2020, 4:51pm

this is awesome! i have one of these but have been trying to figure out how to just use it with an ESP rather than RPi. just haven’t had time!

IronSheep · August 2, 2020, 11:53pm

OK, the new document is in the REPO for the MQTT Daemon (since it does the sending to the card.)

See: https://github.com/ironsheep/lightning-detector-MQTT2HA-Daemon/blob/974d7c4e300a99afac39cd0627c910aff6d4ef4e/THEOPS.md

This should help with the “how to…” portion of the problem…

Fugazzy · August 24, 2020, 8:19pm

Hello,
I just got my sparkfun as3935 lightning detector, but I am struggling to get it to work.
It seems to be a newer hardware version with i2c unsupported by default, but still being able to activate by “switching” two jumpers.
https://learn.sparkfun.com/tutorials/sparkfun-as3935-lightning-detector-hookup-guide-v20
I cut SE and connected CS and connected the right one of i2c PU, ADR unchanged.
correct?
it does show up now:

 sudo i2cdetect -y 1
     0  1  2  3  4  5  6  7  8  9  a  b  c  d  e  f
00:          03 -- -- -- -- -- -- -- -- -- -- -- -- 
10: -- -- -- -- -- -- -- -- -- -- -- -- -- -- -- --

but the script gives me an error:

python3 /opt/ISP-lightning-mqtt-daemon/ISP-lightning-mqtt-daemon.py
Traceback (most recent call last):
  File "/opt/ISP-lightning-mqtt-daemon/ISP-lightning-mqtt-daemon.py", line 174, in <module>
    i2c_address = int(config['Sensor'].get('i2c_address', default_i2c_address))
ValueError: invalid literal for int() with base 10: '0x03'

lightmaster · August 26, 2020, 9:08pm

i2c_address needs to be in decimal, not hexadecimal. So set it to "3"

IronSheep · August 27, 2020, 1:18am

@Fugazzy, @lightmaster is correct. My example in the config.ini.dist uses the 0x prefix but should not!

lightmaster · August 27, 2020, 1:45am

Why not add a check to the script to accept both decimal and hex, and convert to whichever the script already uses?

johnathen.hopkins · August 28, 2020, 6:03pm

Could someone please post a wire diagram of how the AS3935 is connected to the pi I think I have mine right but not sure. Thank you

IronSheep · August 29, 2020, 10:29pm

Is the table in the README sufficient or do you need something more? See: https://github.com/ironsheep/lightning-detector-MQTT2HA-Daemon#connecting-the-as3935-to-your-raspberry-pi

johnathen.hopkins · August 30, 2020, 1:22am

I’m a visual person so sometimes I’m dumb Here is how mine is currently connected

johnathen.hopkins · August 30, 2020, 6:16am

This is what my mqtt output looks like.

{
“settings”: {
“timestamp”: “2020-08-30T02:14:19-04:00”,
“hardware”: {
“min_strikes”: 5,
“afe_inside”: true,
“disp_lco”: false,
“noise_floor”: 1
},
“script”: {
“period_minutes”: 5,
“end_minutes”: 60,
“number_rings”: 5,
“distance_units”: “mi”
}
}
}

Fugazzy · August 30, 2020, 9:19pm

I got my system up and running, that means I see the entities in my homeassistant,
But I am not sure if the sensor itself is working correct?
Manually starting the script I do get a lot these outputs:
[2020-08-30 23:10:30] << INTR(17) >> Noise level too high - adjusting
Is that normal?

IronSheep · September 3, 2020, 9:18pm

@Fugazzy there are a number of things to look at here… make sure your sensor is away from your RPi as far as it can be. Move your RPi and sensor away from other electrical equipment, etc.

Also, new in the latest version of the script there’s an Antenna fine tuning feature so you can better dial-in your detector board.

IronSheep · September 3, 2020, 10:07pm

GitHub: The Sensor Script lightning-detector-MQTT2HA-Daemon :

NOW Supports SPI connections to AS3935
Has new feature for automatic determination of Antenna Fine-tuning value

See the README at the repo!

rieders · November 26, 2020, 2:41pm

Hello
I have a different lightning detector.
I would like to know if it is compatible.

Greetings Andre

tom_l · November 26, 2020, 3:02pm

The post directly above yours says:

This is your sensor.

rieders · November 27, 2020, 1:08pm

Hello Tom

Yes that is my sensor.
Would that work for me on the project?

greetings
André

tom_l · November 27, 2020, 1:38pm

That’s what the word “supports” means, yes.