For those waiting for the newer version, I've been continuing to work on the prototype for version 2. Some of the new functionality that has been planned includes a microcontroller on board for easier integration with existing systems, as well as an lcd display port for an optional display. The additional functionality and required board size will bump up the price a bit, but I still expect it in the $40-$50 range. This new version should be ready approximately June of 2014, and will be listed as a separate product here on Tindie.
A few weeks back I was browsing some vendor sites and found what is probably one of the coolest new products i’ve seen in a while. It’s an IC that can detect lightning! Once I saw it, I knew it was only a matter of time before i’d have a board in the works, and here it is.
This new board is a breakout / development board for the AMS AS3935 Franklin Lightning Sensor. This is a super cool little IC, capable of detecting lightning strikes up to 40km away, and will estimate distance to the leading edge of a storm with some neat internal processing. The IC has support for both SPI or I2C bus making integration with your design nice and easy.
The board I’ve developed is set up with the required components to get the IC running and includes the proper antenna designed specifically for the AS3935. The back side of the board has spots for the two pullup resistors required for I2C operation should you require them.
The IC is set up to run anywhere from 2.4 - 5.0vdc. Details on interfacing with the IC are available on the datasheet available from AMS.
Jan. 14, 2014, 1:32 a.m.
Hi there, i am in South Africa. please could you elaborate on saying: " Please remember, this version should be used only on an SPI bus, as addressing on an I2C bus has shown to be an issue." is it on the AS393 side or the PCB you made? if it's on the PCB, is there a way for me to overcome it?? many thanks, Raam Tselon
Aug. 9, 2013, 5:30 a.m.
Need example sketch Is there any example Arduino sketches that I can import directly into the Arduino IDE to get started with? Not familiar with GitHub at all. I have the AS3935 DK for test purposes to simulate lightning etc.
Aug. 9, 2013, 5:35 p.m.
After navigating to the github site from the links, there should be the option to download the library as a zip file.
May 20, 2013, midnight
Does this work indoors, or does it need to be outside?
May 20, 2013, midnight
These can be used indoors or outdoors. Be sure to check the datasheet for specifics on register settings.
I have 3 of these devices now,and as luck would have it, never a storm to be seen despite this being the Storm Season in September in QLD Australia.
I have data from one sensor showing here.
You need to scroll down to
stream 69 Lightning Count
stream 70 Lightning Distance
Stream 71 Noise Count
Stream 72 Disturber Count
Stream 90 Lightning Relative Energy
I get a few counts of noise each day, i have set the various settings to Floor Noise to 0 Watchdog to 1 Spike Rejection to 0 Minimum Lightning to 0 CT Tune sets to 4
If anyone is getting good reliable data, can we see a link to it?
Oct. 13, 2013
I bought 4 of these, but they haven't successfully detected lightning yet when storms have been overhead or in the distance.
I've tried a number of things, including changing noise levels, gain levels and placing the sensor by a window. I get the occasional IRQ generated, when I make the device more sensitive than the defaults, but I haven't had one lightning stroke detected yet despite seeing / hearing approx 400 strikes over a couple of weeks (cloud to cloud and cloud to ground).
June 29, 2013
I am still exploring this Board. I added timestamp via RTC to the example from the AS3935 library. Fact is for the moment: I recieving something: Some disturbers and maybe 0-3 lightnings per day with perfect weather. On the other side: I live in a wide valley in the swiss alps and was surrounded by storms (pic). Visible lightnings all around, but no detection from the board. Right now i have a warning about "Storm overhead, watch out" I compare with blitzortung.org where are no activities in 1000 km radius. Maybe it has something on the Airforce Airbase 5km's away.
June 23, 2013
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