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Hi,
Since I have a bit of experience with rpi, I am considering to buy the ospi version of open sprinkler.
I have read somewhere that there may be difficulties reading analog sensor data on the pi version compared to the arduino opensprinkler. Is this true? I would like the sprinkler to operate depending on the soil moisture / humidity sensor data and I don’t have a problem to write my own software for this. Does the ospi hardware support this?
Here is the sensor that I have in mind:
http://www.vegetronix.com/Products/VH400/
And I would also like to read temperature sensor some time in future and create some RRD graphs…
Wondering if ospi is the right choice for this.
thanks,
Karolis
OSPi has an on-board 4-channel ADC (PCF8591) that you can use to read analog sensor values. Although the firmware doesn’t have built-in support to read the ADC, there are plenty of C++, Python, or command line script code you can find to read the ADC. For details, check the OSPi user manual page 7:
http://rayshobby.net/docs/ospi14_manual.pdf
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