#Anaerobic Digestion and Pasteurization Latrine (ADPL)

##Projects Websites

• Overview: http://sanitation.pratt.duke.edu/onsite-treatment
• Data Dashboard: http://adpl.colab.duke.edu

##Functional Specifications ###Collection Tank

• When the level in a collection tank is between a minimum and maximum level, the pump should be on for 5 min every hour.
• The pump is off when the level is below minimum.
• The pump is on when the level is above maximum.

###Temperature Regulation

• Record temperatures across 5[-7] thermocouples.
• If the heater temperature (HTR) is < 68 C, the gas valve opens and the ignitor sparks for 5 s.
• The valve remains open until the heather temperature reaches 72 C; the ignitor should spark for 5 seconds, turn off for 15 min, and spark again for 5 s.
• Once the temperature is 72 C, the valve should shut and ignitor remain off.
• Temperatures are published to the web server every 2.5 min.
• Valve status will be polled when the dashboard is refreshed.

###Bucket Tips

• Bucket tips are recorded and counted.
• Count events are published to the web server.

###Repository Layout

• software/ADPL_electron/: Particle Electron code and libraries
• hardware/: control box circuit schematic, PCB layout, component spec sheets and bill of materials
• docs/: API documentation [FUTURE]
• software/ADPL_uno/: Arduino code and libraries (depracated)

###Licenses

• All software is covered by the Apache v2.0 License. See software/ADPL_*/LICENSE.
• All circuit schematics and PCB layouts are covered by a Creative Commons Attribution 4.0 International License (CC BY 4.0) [http://creativecommons.org/licenses/by/4.0/]