OpenSprinkler OSPI - Manual
OpenSprinkler pi (Ospi) is an expansion board for the Raspberry Pi (RPI 0; RPi 1 Model A+/B+; RPi 2; RPi 3). It allows RPi to directly access and control the solenoid valves. It comes with a set of laser cut acrylic body parts.
- ospi14+_Manual (English)
- ospi14+_Manual (German)
- ospi14+_Manual (French)
- Laser cut case assembly instructions (old case until 9/2022)
- Instructions for installing the OpenSprinkler Firmware (English)
- This product requires previous experience with RPi and Linux , since you OSPI – Need to install software on your own. If you are looking for a water timer that works right out of the box, please purchase the fully assembled and tested one OpenSprinkler 3.0/3.2/AC or DC.
Sensors and valves:
When using analogue sensors (eg the SMT50) you need the A2D adapter.
If at hers OSPi the analog pins are activated (OSPi <=1.43 or >=1.6) – Install a socket on the “analog pins” and connect the analog sensors (e.g. the SMT50) via it. Then use that OpenSprinklerStore software.
Digital sensors (e.g. the Hunter Rain-Clik) can
a) connect directly without A2D: SN1 or SN2, and GND
b) with A2D on A2D: SN1/SN2, and VIN(+5V)
Always connect the solenoid valves (picture Valve1/2) to COM and the respective station connection
When using more than 8 stations, you should connect both COM ports together.
Software installation:
ATTENTION: Due to changed GPIO functions, Debian 12 or Raspberry PI OS 12 (bookworm) or Kernel >= 6.3 cannot be used!
Therefore, use Raspberry PI OS 11 legacy (Bullseye)! link
Alternatively, you can also use the gpio.h / gpio.cpp from use here, see also here: OSPi Instructions for new kernels
Or rather that one OpenSprinklerstore software
Detailed English instructions for the original software can be found here:
https://openthings.freshdesk.com/support/solutions/articles/5000631599-installing-and-updating-the-unified-firmware-on-ospi