If you have no joy, you might be able to find an amateur electrician with a
soldering iron. All you need to convert a liquid level indicator to a rain
indicator is a bit of wire and a printed circuit board (PCB). If you know
what a strip of Mecano looks like, then imagine a similar thing but much
smaller - about a millimetre wide. Now picture a dozen or so of these
strips laid side by side with a small gap between them and affixed to a
non-conducting board. Also, instead of tin that I think Mecanno is made out
of, the PCB metal is copper.
You need to connect the strips together in such a way that if water drops on
it then it will make a link to set off the indicator. This is where the
description gets a little complicated. O
Let's call the strips 1, 2, 3. up to 12, and the two ends of the strips A
and B. Connect 1A and 3A together, 3b and 5B together, 5A to 7A, 7B to 9B,
9A to 11A, and 11B to one prong of the liquid level indicator. Then connect
2A to 4A, 4B to 6B, 6A to 8A, 8B to 10B, 10B to 12B and 12A to the other
prong of the liquid level indicator.
Next you need to rig up the PCB, with copper strips up, outside with wires
between it and the prongs of the level indicator and that's it. You've got
a rain indicator.
Cheers
Barry
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of
Phil Jenkins gmail
Sent: Monday, June 08, 2015 1:26 PM
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] Re: rain warning device
Thanks for that. Trouble is that the seaside town I live in has a well
documented micro climate. So it might be raining a mile away but sunny all
day here! Or vice versa of course.
PJ
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of
Jackie Brown
Sent: 08 June 2015 13:01
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] Re: rain warning device
Hi Phil
I liked it too, I remember that Ian and I had one a long time ago and found
it useful when our son was playing outside when the rain started. But,
coincidentally, someone recommended an iOS app called Dark Sky that I bought
and downloaded last week. It is really quite good, and provided you let it
know your location, it will tell you when it is going to rain within minutes
of it starting. I know this isn't useful if you don't have an iPhone, but I
certainly find it very helpful. As for a physical rain alert, I'll keep
searching and report back if I find anything of use.
Kind Regards,
Jackie Brown
Emails: thebrownsplace@xxxxxxxxxxxxxx
jackieannbrown62@xxxxxxxxx
jackie@xxxxxxxxxxxxxxxxxxx
Check out my website: www.thebrownsplace.info
Read my EyeWrite blog: www.thebrownsplace.info/?page_id=136
Follow me on Twitter: @thebrownsplace
Skype: thejackmate
From: access-uk@xxxxxxxxxxxxx [mailto:access-uk@xxxxxxxxxxxxx] On Behalf Of
Phil Jenkins gmail
Sent: 08 June 2015 12:01
To: access-uk@xxxxxxxxxxxxx
Subject: [access-uk] rain warning device
In the olden days RNIB used to sell a simple device (effectively an
extension of a liquid level indicator) that you put a plate outside your
window and then a very loud buzzer inside the house. Rain hits plate, noise
goes off!
Any idea where I might get a similar device these days please?
My Mum even had one from the 1960's that was very very well built out of
metal! J
Thanks PJ
---
This email has been checked for viruses by Avast antivirus software.
https://www.avast.com/antivirus
