• commercial, US only plant sensor & planting database > http://www.easybloom.com/buy/overview.html
• people having trouble with carol reiss' action potential measuring experiment
• carol reiss on her action potential measuring experiment
• System for sensing electrical potential particularly in plants. Patent number: 4039942
• The 'Crescograph' invented by J.C.Bose
• Backster's polygraph experiments
• “Lawrence device” (c.f. lunch, ursa major, onion telescope) http://journal.borderlands.com/1997/detecting-biodynamic-signals-interstellar-communication/
• “Detecting Biodynamic Signals” by Michael Theroux > http://www.borderlands.com/archives/arch/detectin.htm
• “Als planten konden praten” sensoren in wageningen » http://library.wur.nl/file/wurpubs/wurpublikatie_i00365456_001.pdf
• plants on the phone botanicalls
• Fertometer: http://www.fertometer.com/ (also has a quite detailed description of how it works: it's basically an electrical conductivity meter http://www.fertometer.com/specs.html. here is a page about making a DIY electical conductivity meter http://blea.ch/wiki/index.php/PPM_Meter)
• pH meter > http://blea.ch/wiki/index.php/PH_Meter
• environmental sensing > http://web.media.mit.edu/~fletcher/env-sensing/environmental-sensing.htm
• industrial sensors search > https://sourceme.com

• Teaching a Plant Physiology Laboratory Course for the First Time? » http://my.aspb.org/members/group_content_view.asp?group=72494&id=100286
• Experimental Plant Physiology (1915) » http://archive.org/details/experimentalplan031635mbp

• Jurema Action Plant, Ivan Henriques and Bert van Duijn with free e-book
• plant robots by Gilberto Esparza: http://www.we-make-money-not-art.com/archives/2010/04/-1-cuando-lei-acerca.php
• swarm farming robot: http://www.dorhoutrd.com/home/prospero_robot_farmer
• Usmann Haque's Natural Fuse: http://www.haque.co.uk/naturalfuse.php
• a pot plant that blogs from a japanese cafe > http://www.pinktentacle.com/2008/10/midori-san-the-blogging-houseplant/
• Ericsson's tweeting orange tree: http://www.ericsson.com/connectedtree
• Brussels talking tree: http://talking-tree.com/
• Talking pot: http://www.mintpass.com/select/select_detail.asp?Page=3&SrchItem=&SrchString=&SrchType=1&idx=92
• facebook plant dies from overwatering: http://www.wired.co.uk/news/archive/2010-09/16/meet-eater-facebook-plant
• remote gardening: http://goldberg.berkeley.edu/garden/Ars/

“Botanicus Interacticus uses the recently developed Swept Frequency Capacitive Sensing technology. Previous capacitive sensing techniques measure response to touch by exciting the target objects with an electrical signal at a single frequency. We excite plants at multiple frequencies, by sweeping them through a range between 0. 1 and 3 Mhz. Because the path of the electrical signal inside the plant varies with frequency, we can estimate touch locations by observing the frequencies at which the signal was affected by user touch. Since the plant has a complex and dynamic electrical structure, we use machine - learning techniques to recognize gestures on plants reliably and with high precision.”

http://www.disneyresearch.com/research/projects/etech-botanicus-interacticus-poupyrev.pdf

• Easybloom plantsensor
• BlacknDecker Plantsmart plantsensor
• reviews on the two above: http://www.plantsensor.org
• Gardensmart garden and weather station
• Domoco cellphone gardendevice
• DigitalPot
• plantreader TUDelft
• koubachi wifi system
• Gardenbot soil moisture
• sm150KIT soil moisture
• Plug'n Grow CO2 controllers
• sensair CO2 controllers
• larger system: http://www.plant-dynamics.nl
• prototype: http://www.behance.net/gallery/Smart-Garden-Design-Research/2883799

• http://blog.thiseldo.co.uk/?p=344
• http://guarduino.blogspot.com/
• http://community.pachube.com/node/709 which includes:
• roof monitoring
• greenhouse monitoring @sindono in Meppel, Netherlands
• pepper growing
• plantofono
• also:
• HortoDomi on kickstarter
• plantduino: http://revoltlab.com/projects/plantduino-greenhouse/
• arduino compatible soil sensor: http://www.dfrobot.com/index.php?route=product/product&product_id=599
• http://lifehacker.com/5579086/build-an-arduino+powered-tweeting-self+watering-garden-system
• growduino: http://www.arduino.cc/cgi-bin/yabb2/YaBB.pl?num=1212611752/1

• http://1010.co.uk/org/biologic.html#sec-4
• recent studio notes (2012): http://1010.co.uk/log2.pdf

Organic Biofield Sensor: www.ebdir.net/enlighten/sri_ocr_final_full_version_high_06b.pdf

what can be measured?

• plant physiology
  • moisture levels / tension
  • action potentials (Reiss)
  • resistance (wheatstone/transistor) and impedance(AD5933)
  • micro-voltages (is action potential?) (and question of response to electromagnetic waves/fields eg. Lawrence, Experiments in Electroculture)
  • photon counting in case of bioluminescence
  • movement of plants/rate and direction of local growth
• environmental
  • soil moisture
  • pH level
  • temperature (thermistor, or calibrated temp. sensor eg. LM35 or TD5A)
  • humidity (eg. HS12P)
  • uv / light levels (eg. photocells/photoresistor)

what can be observed or recorded 'subjectively'?

• plant
  • species, common name, individual name
  • general characteristics (eg. height, width, density, branches)
  • leaf qualities (eg. shape, arrangement, simple/compound, etc)
  • foliage qualities (eg. colour, shape, feel, density, etc)
  • health & happiness (as observed by the gardener)
  • favourite music (or response to ultrasonics)
• the plant's environment
  • what is it like?

plants producing electricity in Plant MFC ??

• http://octopart.com/parts/category--industrial+control--sensors+and+accessories/search?c=5510

current tests (200907)

• A1302EUA hall effect linear SIP-V data
• TEPT4400 Photodiode data
• MCP9701A Thermistor Linear 19,5mV/°C data
• MCP9700A Thermistor Linear 10,5mV/°C data
• HCH-1000-001 Capacitive Humidity Sensor data
• AD22103KTZ Temperatuve 3,3V data

light:

moisture:

Light Level:

http://apps.pachube.com/google_viz/preview.php?f=1951&d=0&w=600&h=150&g=FF0066

EEML “Extended Environments Markup Language (EEML), a protocol for sharing sensor data between remote responsive environments, both physical and virtual.” http://www.eeml.org/

“SensorML is an Open Geospatial Consortium standard markup language (using XML Schema) for providing descriptions of sensor systems. By design it supports a wide range of sensors, including both dynamic and stationary platforms and both in-situ and remote sensors.” SensorML

• “Plant neurobiology: an integrated view of plant signaling” > http://crb.colostate.edu/home/Design/Assets/papers/Brenner2006.pdf (link dead)
• “Plants as Sensitive Agents” > http://www.borderlands.com/newstuff/research/plantsas.htm
• see also plant perception and HPI