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?
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