Difference between revisions of "PIFcamp Plant Analyzer"
(→Intro) |
(→The circuit) |
||
Line 13: | Line 13: | ||
== The circuit == | == The circuit == | ||
+ | [[File:4093_sajica_schematic.jpg|400px]] | ||
+ | [[File:4093_sajica_chip_connections.jpg|400px]] | ||
== The History == | == The History == |
Revision as of 11:20, 7 August 2015
Further developed and worked with during the Lab-in-the-Wild @ PIFcamp, Trenta 2015
Intro
It's basically the same circuit as the NanoSmano Sajica aka Vive-la-Resistance, as documented on the SGMK wiki. A basic 4093 single oscillator using 1 NAND gate with a very small capacitor (1 - 10 nF), leaving the pads for the resistor open to play with. Then buffering the output through another gate to control the LED and further buffering it through a gate to be used as output for a piezo or read-out using the freqCount library.
See more details and applications of the PIFcamp Plant Analyzer or other projects on Plant Electrophysiology.
The circuit
The History
Orignally made during the NanoSmano Small Matter, May 2011 in Ljubljana, to use as a model of a NanoCarbon based gas sensor.
See the other workshops from Du du kuglica sajica mavrica
Very simple making of a PCB using photolitho and using a resistive "surface" as a sensing area, coating it with different materials such as soot (black carbon). The use as a "Salami-Sensor" has been questioned though...