Hackspace Instrumentation

Template:Clean Up Our always-on little server Holly will be used to collect data from the HackSpace and provide a number of interfaces for the presentation of that data. This will be for "the things we want to know about" and various interesting statistics. The end-data, or a subset thereof, should really be published to pachube to contribute to the Internet of Things. Internally we should be using MQTT to communicate between nodes.

• door contacts
  • main door on black and white core --Lwk 21:41, 2 March 2011 (GMT)
  • main door magnetic release green and yellow cores --Lwk 18:57, 8 May 2011 (BST)
  • We'll want to do the main HackSpace door first
  • I got a nice reed-magnet contact switch from expolinkalarms.co.uk on ebay for £1.65
  • I taped it next to the door to install next weds Michael Erskine 13:21, 10 February 2011 (GMT)
  • I brought in some Tyco 6-core alarm cable - there's lots of this in my free-issue cable store.
  • RepRap Matt has now installed the switch and run 6-core alarm cable over to Holly.
• temperature
• light level
• PIR
• dance-mat floor pressure switch (!)
  • I have one in the store room
  • it might be useful to use it on the floor just inside the store room
• RFID reader fun
• fingerprint readers! I have left two in the store room
• webcams - naturally!
• HAL 9000 [1] eye with webcam showing the spooky view!
• GERTY from Moon [2] - a cheap colour LCD for the smiley face and what-have-you for the rest.

I have started to map out The_Space with http://sourceforge.net/projects/sweethome3d/

PC I/O

• serial and parallel ports available
• USB ports available
• we could arduino it if we want

PC storage and user interfaces

• Added "instrumentation" account on holly (uid=1005)
• RRD http://en.wikipedia.org/wiki/RRDtool
• syslog?
• IRC bot would be entirely appropriate
• web interface of course!
• hook into the website
• daily summary as RSS feed
• everybody loves graphs!

Michael Erskine 13:21, 10 February 2011 (GMT)

Crazy Cool Mobile Phone Hack

Every wanted to phone a server and tell it to do something? Or perhaps have the server phone or text you when something happens!

Inspired by some crazy phone hacks on Instructables, I'd like to involve some old mobile phones to act as inputs/outputs. I've started a page on my vebug.com webpage at [3] and I'll transcribe it here.

Michael Erskine 09:33, 15 February 2011 (GMT)

Matt's List

A quick copy of the big ToDo list that 'RepRap' Matt put together

• Hackspace instrumentation:-
• MQTT running form Holly
• Sensors can be added via arduino's/nanodes publish to topics
• All useful data to be graphed using cacti? Scripts for cacti the subscribe mqtt and then graph as needed?
• Irc bot and twitter bot to publish/subscribe to own topics
• Use scripts on Holly to reprocess topics for twitter and irc
• Port mqtt to nanode

• Gatekeeper RFID door control
• Power at supply shared with led matrix or power over cat 5
• Nanode
• RFID reader (newsoftserial)
• Doorbell button (plasterboard back box) (interrupt pin)
• magnetic relasse (MOSFET switch 12v)
• Magnetic contact (interrupt pin)
• Doorbell sounder (MOSFET or relay) pull of wall and see if it will work?
• Status led's red green linked to mag relase
• Push to irc twitter cacti and log
• Card numbers in mysql db, script on Holly to check
• Web page to manage mqsl db, intranet only, htacess passwd
• Db possible for other members details? Name, twitter, email, address, phone numbers, fee's, join date.
• Need a project box due to location in members box room

• Status board
• Nanode???
• Or mega with ethshield?
• Power from at supply,
• Cat 5
• Looking John's code for frame buffer
• Add strobe light (for doorbell and ?beacons)
• Subscribe from irc and twitter dm (show for how long? Till change)
• Clear board button? (big red one!!!)

• Energy Monitoring
• Openenergymonitor.org
• Current transformers in place, forgot to note down models
• Owl wireless meter? Not much use if can talk to USB over Linux
• Nanode
• Open energy monitor show voltage sense using 9v ac-ac wall wart (?need one for each phase?)
• Push to cacti
• Query form irc
• Possible led display either flashed on led matrix or own display allways on?
• http://openenergymonitor.org/emon/emontx
  • plausible way to do CT monitor using 2 RFM12B nuts, would mean not stuffing a nanode in the cupboard and losing access to spare pins

• Irc stats to cacti? London do it (nick there scripts from github)

• Temperature Monitoring
• Temp sensors dotted around space
• Nanode again
• Small wireless units or daisy chain of dalas one wires?
• Humidity sensor's?
• Push to cacti
• Query from irc

• Last man out switch
• Knife switch (back to RFID nanode)
• Push to twitter/irc
• Query from irc
• Can rest space occupancy if needed
• Should turn off some plugs? Kettles, water heaters?

• Occupeancy counter
• Nanode
• Laser beams count in and out, embed in unsed door?
• how to detect lasers. Photo diodes enuff?
• Two beams in entrance
• Push to cacti
• Query from irc
• Own led counter? Similar to Power meter
• Can use door magnetic contact and last man out switch to keep accuracy
• Project box

• Back door bell

• RFID to blue office and members storage
• Again monitor access
• just one reader, opens both doors use magnetic contact to see which is opened
• Push to cacti and log?
• Don't really need to irc twitter

• Sound meters??
• Push to cacti

• Pir's??

• Vending Machine and Snackspace
• take over the logic of the vending machine
• install RFID
• members can RFID to buy on tick
• you enter a code for product, then either deposit correct money into vending machine or swipe rfid, it then vends the item
• can email members there invoice once a month
• possibly add a magnetic lock to the fridge and have code's for fridge products unlock that once paid for
  • causes issue with milk access