git-core (Installed in these instructions).Random number tools (Installed in these instructions).Raspbian Stretch Lite (Installed prior to these instructions).I’ve successfully set up a Raspberry Pi Zero W, but Pi versions 2 (with WiFi dongle) or 3 should work fine. A standard 24VAC power supply for sprinkler valves.An Open Sprinkler Pi (OSPi) board from Open Sprinkler.Have the following requirements in place before proceeding. You can set up an ad hoc network for any number of purposes. Note that there’s nothing in the present network setup instructions that’s Open Sprinkler specific. This source site also has more explanations of commands that is presented in the present document, and additionally includes a useful troubleshooting section. This Web site has the only set of Pi ad hoc network configuration instructions I’ve found that works for the Stretch version of Raspian. However, you don’t believe you’re administering device will always be within range of the OSPi network when needed, then this setup isn’t likely for you.Īll steps in the present OSPi network setup procedure below are directly distilled from this Stack Exchange Web page. I’ve found that I can connect to the OSPi network (even one using a Pi Zero W) with my iPhone and laptop up to 50′ away, with several intervening house walls. The OSPi network would be out of range of an administering device.(This isn’t an important factor, though, since the current Raspian and Open Sprinkler code is quite stable.) You can’t easily upgrade/update the OSPi software when you have an OSPi network, since upgrades are normally conducted over the Internet. You need frequent in-place software/firmware upgrades.Similarly, you can’t have log files forwarded to you. They aren’t connected to the Internet, and hence you can’t administer devices on them via the Internet. Ad hoc networks are by definition standalone. For example, you might have a rental property, whose grounds are watered by an OSPi system, and you don’t want the unreliability (or liability) of connecting the OSPi to the tenant’s WiFi network. In some cases, an existing WiFi network isn’t practical to access.
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