Arduino – Weather Station with BMP180

Following on from this post, I have added a second sensor and developed the code further.

Here is the BMP180 (link to data sheet hosted with Adafruit), its a bosch sensor which will measure pressure and temperature – I bought from China via ebay – x2 sensors cost $2.96 delivered.

I outputted both the DHT22 and the BMP180 temperatures in the serial monitor to check to see how close they were – not too far out.

The board now looks like this:

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Arduino – Simple weather station

I recently picked up a clone Arduino Uno from China via ebay along with some sensors and other bits and pieces to learn a bit about Arduino – First project a simple weather station.

For wiring instructions and arduino Libraries I used Adafruit, DHT22 here and 16×2 LCD here.

Then cobbling together some code from here which I made a few changes to:

  • Changed Fahrenheit to Celsius
  • Added a degree’s Celsius character
  • Changed the LCD and DHT22 Pins
  • Changed the error code to “looking”
  • Added a five second delay as the humidity reading was flickering on the display
  • Added the F as described in the comments – see bottom of post

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Raspberry Pi and get_iplayer

get_iplayer is a great piece of software that downloads bbc iplayer programmes to a local hard drive it also runs great on a raspberry pi. To set-up I followed these instructions: http://raspi.tv/2014/get_iplayer-raspberry-pi-update

Once installed open the terminal and run

get_iplayer --cat films

This will then return all the films currently available on iplayer, then to download, note the Number and run:

get_iplayer --get 1582 --modes best --type=tv --file-prefix="<nameshort>-<.senum>-<.episodeshort>" --output "/media/WD/tv/films"

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HDMI Switch for Pi

I have a monitor that is connected to another pc and a pi, up until now I have had to swap cables when I wanted to use the pi/pc and it was getting tedious.

As I read that some don’t play nicely with the pi, I was assuming that it might be tricky to find one that works – however this duronic hdmi switch works perfectly (even the auto switching) with the pc and pi. The only issue is the blindly bright blue LED – seen below covered with a square of post it.Connected as follows:

PC-DVI--------------HDMI-[switch in]
Pi-HDMI-------------HDMI-[switch in]
[switch out]-HDMI---------DVI-[monitor]

Chilli Seeds

2015 will be a year of the chilli here, I ordered the seeds from sowseeds.co.uk which arrived fast and in attractive packets.

So after quite some time deciding on what to grow here are the contenders:

*Cherry Bomb – 2,500 – 5,000 SHU – great for salsas as well as pickling or roasting in the oven stuffed with cheese & herbs.

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Journey to go paperless and the Quest for a good scanner

In an attempt to digitise as much paper and other records to reduce clutter and make it easier to search for things I decided to get a sheet fed scanner and make a start.

First stop was to find a scanner, i decided I needed the following:

  • Ability to scan on the machine without the need for a PC
  • Colour scanner – that’s obvious right
  • ADF (auto document feeder) so I can load it up with paper and leave it to scan away, I do not want to feed in every single sheet manually
  • Ethernet or wifi connectivity
  • scan to jpg or pdf
  • ability to get working with linux without too much hassle
  • Scanning resolution of 600dpi
  • Less than £150

So my short (long) list:

  • dixie – portable and scans without a PC but its single sheet feed only
  • Fujuiti – look good but too costly for home use
  • epson – as above

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Server Build

I wanted a server for a while to take care of streaming music, streaming films, backup documents, photo storage, print server and anything else I need. I avoided the cheaper generally low powered NAS’s (I have a raspberry Pi that could do that) and decided to essentially build another pc to perform these tasks. It would be more powerful and offer more functionality. It will however cost more to run and take up more space. But I was happy with that.

Kit List

  • AMD APU A6-6400K (second hand)
  • MSI motherboard A88XM-E35 – FM2 socket
  • 4GB Generic RAM – now upgraded to corsair 1600mhz 4GB
  • 500gb Hitachi HDD – now upgraded to 120GB PNY Optima SSD
  • Silverstone SST-PS08W (with USB 3.0) case
  • 1tb data hard drive (see post here)
  • OS – Ubuntu 14.04.1LTS
  • BeQuiet 350w 80+ power supply
  • Pioneer BDC-207DBK Bluray drive
  • Arctic Cooling Alpine 64 rev.2 CPU cooler
  • Arctic mx2 thermal paste
  • Isopropanol alcohol (for cpu cleaning)

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Second Bed Build

Following on from the last bed build (see part 1, part 2), I made a second one. This time a full UK double size rather than a UK small double. As it was a full double I again added the centre 2×4″ and also a centre leg for extra strength.Frame made in the same way as before, 4×1″ for the legs, 2×4″ for the frame and 1×4″ for the slats. Prior to assembly, I cut everything to size, sanded it and varnished with water based polyurethane (dries much faster than oil based).

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Free To Air Satellite TV FAQs

So if you’ve seen this post (click here) here are some answers to a few questions I’ve had regarding a DIY installed satellite system.

  • what is FTA?

Free to air channels are channels broadcast by satellite unencrypted.

  • OK what don’t I get?

All the sky channels are encrypted so you can’t get them. You also only get a now and next programme information – no seven day electronic programme guide (EPG.)

  • What is FreeSat?

Free sat is a group of free to air channels that pay to be part of freesat and get put on the freesat seven day (EPG).

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Adding a second LNB to a Satellite Dish

A Little later than expected, I have finally added an extra LNB to the set-up so I can receive a few more free to air channels. The first post detailing the set-up of the sat system is here

The finished install:

I have been running the Skybox F5 for quite a few months without issue, but I decided I wanted to add a second LNB to the set-up to get some extra free to air channels – specifically from 19.2E degrees so I could watch some continental TV and see the F1 free to air whilst still retaining the channels from 28.2E.

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