OpenSprinkler is a Open Source, Web-based, intelligent watering computer (sprinkler controller) for lawn and plant watering, drip irrigation, farm watering, greenhouses, hydroponics etc.
How does it work? How it works! DC or AC version - which one is better?
Do you also need housings and accessories? Then click here!
Features:
- Time-controlled activation of 24VAC valves (AC+DC versions), 12VDC valves (DC version), self-retaining DC solenoid valves (latch version).
- Free Android and IOS App
- Web interface for access from the PC
- Dynamic irrigation control by retrieving the weather report (internet connection required)
- Alexa connection via IFTTT (if-this-than-that)
- Up to 8 valves in the standard version, additional 16 valves with extender (max. 72 valves possible)
- Universal connector for rain sensor or switch
- Control of a main water connection valve
- Run irrigation programs in parallel or serially (simultaneously or sequentially).
- MQTT state interface
You can find even more features in the FAQ experience.
Test the program interface? create programs? Here is the demo:
Password is “opendoor”
| Version | AC | DC | Latch |
| hardware revision | 3.2 / 3.3 | 3.2 / 3.3 | 3.2 |
| power supply? | 24VAC | 7,5VDC | 7.5VDC |
| WiFi | Ja | Ja | Ja |
| Ethernet | options ( Version 3.2: ENC28J60 10MBit, Version 3.3: W5500 100MBit) | options ( Version 3.2: ENC28J60 10MBit, Version 3.3: W5500 100MBit) | options ( Version 3.2: ENC28J60 10MBit, Version 3.3: W5500 100MBit) |
| solenoid valves | 24VAC, no self-retaining valves | 24VAC + 12VDC, no self-retaining valves 24VDC ball valves* | 9-12V Latching Valves (Pulse Coils) |
| Relay controllable | Yes, 24VAC | Yes, 3-32VDC solid state relays | No |
| standard power supply | 24VAC 1,5A | 7,5VDC 2,93A | 7,5VDC 2,93A |
Power supply: 24V AC model, 5-12V DC model * see here
AC adapter: Calculate the power using the following formula. To do this, you need to know the power consumption of the solenoid valves.
OpenSprinkler has a power consumption of about 2,2W = about 0,1A. A Rain-Bild solenoid valve has a maximum current of 0,3A
Ie with 4 solenoid valves AT THE SAME TIME you have 4x 0,3A + 0,1A = 1,3 A inrush current, the next larger power pack with 1,5A should be used. In the shop we have different power supplies.
If you only operate one or two solenoid valves at the same time, you have 2×0,3A+0,1A = 0,7A, a 1A power pack is sufficient. Even if you have 20 solenoid valves but only activate 2 at a time, that's enough.
Note: This is just a sample calculation! Observe the technical data of the solenoid valve manufacturer!
Note: Maximum total current=3A (fuse)
Note: Only applies to OpenSprinkler AIR CONDITIONING.
Other suitable power supplies can be found here: AC power adapters, Plug-in power supplies DC, DIN rail power supplies AC and DIN rail power supplies DC
Never connect more than ONE solenoid valve to ONE OpenSprinkler exit on! OpenSprinkler can switch several outputs at the same time, so it is not necessary to combine several valves. An AC output can deliver up to 800mA of current. If that is not enough, you should operate the outputs via relays.
Version with plastic housing
Hardware revision 3.3 now supports the W5500 network module with 100MBit interface (currently only available to a limited extent!)
Temperature working range: -30 to +70 degrees Celsius
Note: Product from the USA, delivery times longer if out of stock
Further information (manual, circuit diagram) here: manual and downloads
| Weight | 1 kg |
|---|---|
| Size | 14x5x3 cm |
| Version | AC, DC, latch |
| Network | Ethernet and WiFi, WiFi |
Reviews
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nilsE -
Really easy and quick to install, replacing a Hunter node with latch valves - works perfectly!
Verified purchase. More information
Jorg Brandes -
Very nice and fast contact, super fast delivery, really great!
I have the OpenSprinkler Installed AC in my existing Gardena system with 4 circuits including rain sensor. No problems, good operating instructions, even the original Gardena power supply is enough, since I don't switch more than 2 circuits at the same time.
Let me now deal with the details of the automatic control by the weather forecast….
So the first impression is very good, and that also applies to the app, which has so far run without any problems on the iPhone and iPad.
Verified purchase. More information
mr_hoffi -
Plug and play, no tinkering and trying out, if you want to start watering immediately, this is the place for you!!! Big compliments to the developers and the contact can also be reached immediately = CLEAR RECOMMENDATION !!!
Verified purchase. More information
mirko.friedrich -
Delivery came quickly. Setup was easy. Unfortunately, the device was defective after about 3 weeks.
I then contacted support in the morning and received an answer within a few minutes.
Conclusion: After one day the problem was solved! The replacement device was even brought home personally. A 1 with an asterisk! Many shops can learn something from that.
Verified purchase. More information
Thomas -
Works very well so far. Very fast delivery!
Verified purchase. More information