tjuuljensen / poseidon Goto Github PK
View Code? Open in Web Editor NEWThe Open Source Tank Monitor Application
The Open Source Tank Monitor Application
Function to auto-return to main page (option to enable this?)
Only active on subpages(?!)
Set temperature on pH sensor before read. C code
(e.g. Last updated: 13:45:00)
Draw HW layout with all identifiable components
5V PSU design should be revisited, so enough power can be supplied to MOU and n number of Outlets (see also galvanic separation issue)
Describe which parts of the GUI that needs to be developed.
Prioritize those
iPad aware
Phone aware
PC aware
System Time
Services running (Poseidon, ...)
RPI serial
Online Sensor data (readings)
Camera Output
Implement STOP action in GUI (When to shut outlet off) - based on sensor values
Check http://learn.adafruit.com/photocells/using-a-photocell
Quote: "If you're planning to have the sensor in a bright area and use a 10KΩ pulldown, it will quickly saturate. That means that it will hit the 'ceiling' of 5V and not be able to differentiate between kinda bright and really bright. In that case, you should replace the 10KΩ pulldown with a 1KΩ pulldown. In that case, it will not be able to detect dark level differences as well but it will be able to detect bright light differences better. This is a tradeoff that you will have to decide upon!"
Galvanic separation should be considered as a design philosophy, so serial coupling (and 5V transport) of outlet units can be made possible
Configuration in init.d
Check http://www.debuntu.org/how-to-managing-services-with-update-rc-d/
Make sure to check the wiki page
From http://atlas-scientific.com/_files/pH_Circuit_4.0.pdf:
I Instructs the pH Circuit to transmit it version number.
A comma separated string will be transmitted that will contain 3 values.
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