Well, as I'm rather new to this I don't feel really confident writing a
description, but I'll try the best I can!
1. First I got the CJMCU as3935 chip soldered and hooked up to my RPi3B+,
connections as follows:
VCC -> 3.3V
GND -> GND
SCL -> PIN 5
MOSI -> PIN 3
SI -> 3.3V
A0 -> 3.3V
A1 -> 3.3V
Connected with a breadborad.
2. In terminal, run "sudo i2cdetect -y 1" to see if the chip is connected, it
should show 0x03.
3.Now install
http://lancet.mit.edu/mwall/projects/weather/releases/weewx-as3935-0.6.tgz
following the instructions.
(I did install another one also but I assume this one is the right one)
4. Open /usr/share/weewx/user/extensions.py in a text editor and add these
lines at the bottom of the file:
import schemas.wview
schema_with_lightning_strikes = schemas.wview.schema + [('avg_distance',
'REAL'), ('lightning_strikes', 'REAL')]
import weewx.units
weewx.units.obs_group_dict['avg_distance'] = 'group_distance'
weewx.units.obs_group_dict['lightning_strikes'] = 'group_count'
weewx.units.default_unit_format_dict['count'] = '%.0f'
weewx.units.default_unit_label_dict['count'] = ''
5. My settings in weewx.conf:
[AS3935]
bus = 1
indoors = false # set to True if indoors
noise_floor = 0
calibration = 6
pin = 17
address = 3
binding = archive
Under [Databindings]
[[wx_binding]]
Add this: schema = user.extensions.schema_with_lightning_strikes
And put a # in front of schema = schemas.wview.schema (guess this replace the
schema to use the new one.)
6. Stop WeeWX.
7. Make a backup of the weewx database file. Located under: /var/lib/weewx
8.Run sudo wee_database weewx.conf --reconfigure - You will need to specify the
full path to weewx.conf (e.g. /home/weewx/weewx.conf or /etc/weewx/weewx.conf)
9. Replace the old database file with the new one.
10. Run sudo wee_database --rebuild-daily
11. Restart WeeWX.
(To add the new observation type I followed:
https://github.com/poblabs/weewx-belchertown/wiki/Adding-a-new-observation-type-to-the-WeeWX-database)
I think this is how I got running, with alot of help from Gary(gjr80)
And maybe this isn't the correct way to make a description, but now it's done!
Please feel free to make any corrections to my descriptions, I'm might have got
somethings wrong and maybe forgot some step :)
And remember to backup your database file and maybe your weewx setup before
doing any changes!
Let me know if there are some questions and I'll see if I remember something
leftout!
//Mikael
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