Pete's Blog Tasmota AS3935 Franklin Lightning sensor

[pete_c]

Built one using an RPi a few years back. Works fine today.

How to use a AS3935 Lightning sensor with a Raspberry Pi

Reference:

AS3935 Franklin Lightning sensor

Tasmota view:



and in MQTT topic when an Event occurs:

{"Time":"2020-01-01T17:07:07","AS3935":{"Event":4,"Distance":12,"Energy":58622,"Stage":1}}

Hardware:

Wemos D1
AS3935 Lightning sensor

Firmware:

Tasmota

 

[electron]

Now I just need to find a way of physically disconnecting my electric car via automation, and I would have a perfect use for this dataset.

 

[pete_c]

I have a computer in the car that taps in to the bus and ODB2. I can remote control everything except for driving the automobile. I am the only person that drives the vehicle. Using Python scripts to do this. It is on a network and using a tiny OpenWRT router to an LTE modem.

IE: can open windows, turn lights on, shift, et al via the HU display.

 

[BraveSirRobbin]

Now I just need to find a way of physically disconnecting my electric car via automation, and I would have a perfect use for this dataset.

Heavy Duty Relay/Contactor - ELK Products

The ELK-9200 is a Heavy Duty Relay/Contactor inside a lockable metal enclosure. It is designed … Heavy Duty Relay/Contactor Read More »

www.elkproducts.com

You can turn it on/off with a Z-Wave switch (to 110 vac).

 

[pete_c]

So you could use a 220VAC contactor (like an outdoor AC compressor contactor) and connect that to a low voltage automation switch.

 

[electron]

In an ideal world, I was hoping for a contraption which could remove the plug, but several people have tried and it's just not practical. A relay like this may be the next best thing (although I can charge at 40A, so the ELK may be out). Main goal is physical separation to survive surges/brownouts/lightning. I guess the relay approach would at least take care of the surges/brownout concern.

 

[BraveSirRobbin]

I have no idea how much they are, but they make surge protection devices especially for electric vehicles. Considering that you will have to have some re-wiring done anyway, I would go this route instead of a contactor/relay (IMO). Reason is, the contact relay solution may have that device turning on/off many times during a brown out or failure stage. Of course some smart logic could prevent that, but again...a surge protection device 'seems' to be worry free.

Surge Protection Devices for Electric Vehicle Charging. - Electrical Engineering

Available from Specialist distributor Switchtec is the Citel DAC/DDC range of AC and DC Surge Protectors for use within the Electric Vehicle Charging network infrastructure. The UK’s electric vehicle (EV) charging infrastructure is continually growing and changing shape to meet the needs of EV...

electricalengineeringmagazine.co.uk