[Blackpool] Saturday 18th July

[Arthur Garlick]

Hi,
Thanks Mike, I'll see you there and I'll be at the Jam.
 
My cheapo DHT11 digital temp and humidity sensors arrived.  I found a library online and got them working with the ESP8266.  Those ESP8266 boards with the batteries attached Mike Hewitt and I are using use the ESP12E, the E variant giving more GPIO, although on these boards these extra pins are connected to a RGB LED and a row of single colour LEDs which are not that useful for what we are wanting to do.  The attached LDR is kind of nice to have as another data point and I got that working too, streaming data along side the temp and humidity.  To get the LDR reading you just need to analogRead(A0), whereas on the ESP12 I was getting success using analogRead(15) iirc, which does not work on the ESP12E.
 
The library I used to get the DHT11 going is here:  https://www.adafruit.com/products/386
 
I also got one of the ESP8266 library examples working on the new boards where it can connect to wifi and stream data to an ip address and port.  I wrote something in Delphi on my windows laptop to listen on a port to what the ESP8266 is sending.  It doesn't do anything with it yet but I can see the data and know it will work.
 
So I feel I have the difficult two thirds of the solution sorted, they just need putting together in one piece of code, and the third bit is what to do with the data once you have it in one place.  I wonder if that one place should be on a machine in my home or do I pipe it straight on to the net like Mike Hewitt uses Xively.  I am not sure where I am going with this, another chat with Mike might help.  
 
 
I also refreshed my ESP8266 board stuff in the Arduino IDE to see if I could get the servo library working, but no success.  I need to read their GitHub site properly perhaps to work out what I missed.  I didn't really have time to bottom it out.
 
 
Headphones corner for James... I got pulled in by Amazon Prime day and bought some MPOW Swift Bluetooth headphones (£15).  I got them for when I am decorating and gardening, being an Apple fanboy I cancelled my Spotify and have gone all in on Apple music... which I am loving and it's making me listen to music more.  Review of the headphones after 1 gardening session:  the earbuds are big, like too big it's a Lt Uhura moment sticking them in, but they didn't feel uncomfortable.  The Bluetooth pairing works flawlessly.  Sonically they lack bass and just feeble all round compared to my AKG K451 for music, for podcasts and audio books they are very usable. 
 
 
(I will get around to finishing and writing a few more of the ESP8266 things on the group blog...)
 
A
 
> From: mikehull2008 at hotmail.co.uk
> To: blackpool at mailman.lug.org.uk
> Date: Thu, 16 Jul 2015 23:59:33 +0100
> Subject: [Blackpool] Saturday 18th July
> 
> Hi All
> 
> Tyldesley Road open Saturday from 10am
> 
> Note, we are lkely to close around 12 noon as there is a Raspberry Jam this week.
> 
> Regards
> 
> Mike Hull
>  		 	   		  
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