OpenMarine
Franklin Sensor - Printable Version

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Franklin Sensor - BellaX - 2018-11-29

Hi all,

some years ago (6?) i did a lightning detector project with the (formerly) brand new Franklin Sensor
AS3935 from Austria Microsystems. The idea was to create a mobile lightning detector that
connects via BLE to a smartphone.

I created a pcb with the AS3935 and a BLE113 bluetooth  module that fits perfectly into the 
CSS Takachi enclosure with silicone cover. http://www.takachi-enclosure.com/data/c16-17/CSS.pdf

At that time, six years ago, i tested the dev board during a thunder storm. I have
compared the display readout with internet lightning pages. Don´t ask me how
they are doing the calculation but the sensor was pretty accurate.

For some reasons the project was canceled. The last days, while cleaning up the loft, i found the 
box with around 80-100 pcbs, completely assembled and never used:

[Image: 6b7e4a343d_album.jpg]

Inside the box was the development kit, an USB-Stick with documentation
and the lightning simulator:


[Image: d0d0df3145_album.jpg]

I do not want to throw it away. It should be no problem to get the BLE113 module
running. The lighning events could be sent via BLE advertising package to the
RPi running node red.

Some months ago i have tested receiving BLE advertising packages into node red.
The installation was horrible like everything on the Pi, but it works.

I am hoping someone is interested and write some software for it.
The BLE113 is very easy to program, it is using a BASIC scripting language.

For programming the BLE113 a CC debugger from Texas Instruments is needed.
All the software needed is free on the Silabs website. (www.silabs.com)

"I do not want to throw it away" means you can get a pcb for free. Please send
me a PN if you want one. (you have to pay the shipping and packaging costs of course)

All the best
Chris


RE: Franklin Sensor - BellaX - 2018-11-30

Hi all,

I am happy to say the first pcbs have found a new home. Smile

I have completely forgotten that the pcb has soldering pads for
SCL/SDA and TX from the BLE113.

So of course you can hook it up directly to the I2C pins of the RPi.
This means you don´t need the CC debugger and TAG connect
cable. Three simple wires will do the job too.

If you are not interested in the franklin sensor, you can still use the
board to connect I2C sensors to it and send the data via BLE to the
RPi using Node Red.

All the best
Chris