![]() VGA Optional HDMI to VGA blob for an older screen £12.Raspberry Pi case - £5 to £20 - it seems silly spending too much on a case when the computer costs just £35 - I like the see through ones.There are also tips on identifying you raspberry Pi version numberĮxtras you need beyond the Raspberry Pi itself - these do add up to double the cost so I favor reusing those old keyboards etc.Wi-Fi built-in (new for the Pi 3) & Bluetooth built-in.So briefly the specification and other part you need to purchase: You use a program to "burn" the image on the MicroSD card from a large image file you download - this work well on Windows and Linux Laptop - and I assume from an Apple Mac (I don't have one).ĩ HMDI to VGA converter cable (see below picture) - In our computer room we can easily find an old 15 inches VGA screen (in fact our only HDMI screen is a 100-inch monster for conferences) so we use an HDMI to VGA converter cable / blob - this works well with zero setup. Note: To get your Raspberry Pi running most people use a laptop to create the MicroSD card image ready to run. These MicroSD cards are really small (smallest finger nail size) any smaller and you could not pick them up and a sneeze would blow them across the desk. Performance here is important MicroSD cards which are Class (10) are OK for speed lower numbers will drastically make your Raspberry Pi seem slower. If we turn the Raspberry Pi over is only one thing of interest - the MicroSD card which acts as the disk drive:Ĩ MicroSD card (two pictures above)= disk pops in at one end with a click. ARM v7 processor with memory in the same package - the guts of the system.GPIO (including digit input and output) - General Purpose Input and Output in a 40-pins set - 3 pins used on this project to measure the temperature.Audio Out jack & S video In - not used on this project. ![]() Four USB sockets - being used for Keyboard and mouse.Ethernet socket (wired) - used in the computer room.It runs my 42 inch TV well and plays DVD video files well but we use simple VGA screen on this project. Recent Raspberry Pi's take a bit more power so be careful if upgrading from an older Raspberry Pi. MicroUSB power - A typical charger for a Tablet works well.It is roughly 4 inches by 3 inches and the actual board slight smaller. You can see the optional case (here in light red and not pink as my daughter calls it). ![]() The current model is a Raspberry Pi 3 and we are using this here.īelow is a quick picture of one of my Raspberry Pi's and I highlight some of the key features. The Raspberry Pi is a small computer that became very popular (think 3 million sold by 2016) to learn computer, programming and run many projects and engagement school IT education - oh and it is cheap at £35 GBP. I will cover here the basics but not the endless details that you can read elsewhere. There can be few people reading this article that has not heard of a Raspberry Pi computer, just look it up on the Internet for 1000's of web pages on it. This Blog Article is about my experiments in this temperature monitoring area. If the machine temperature continues to rise to a level that might start causing damage then the FSP will power off the whole machine (issuing a warning to each OS before ordering OS self-shutdown) and finally the server power off. If it starts getting too warm, using the Service Processes (FSP), an event is reported to the Hardware Management Console (HMC) for our action. It should be noted that the POWER range of servers have for years monitored their own temperature. Second to understand how hot they get, if they start heating up it can indicate a problem like something covering the air intake and finally learn something about airflow that might mean cooler computers. First, in case the air conditioning fails, I can do something about it and have the facts. ![]() I want to monitor what my computers and computer room are up to temperature-wise. I also installed ksh and got the script to email me, if or when the AirCon temperature gets too high (75 F) so I can do some shouting at the Air Conditioning guys :-) This also comes with a full GUI and lots of things install that the barebones Server image does not so save a few hours installing the usual packages. I found the DS18B20 temperature probes did NOT work if I installed the Ubuntu 16.04.02 server image downloaded from Ubuntu (it appears it is missing some feature I could not fathom) but the Ubuntu MATE 16.04.02 image from the Raspberry Pi website (it took me to http s:// ubun tu-m ate. I had to rebuild my Raspberry Pi due to a failed MicroSD "disk" and followed these instructions again and found I missed a step:Īs the root user add to the end of /boot/config.txt this line and reboot: Even when these words are in the file names on the computer! Update in 2017:
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