![]() ![]() Wiper control – This mode will control the wipers from off through intermittent and steady-slow speeds.Condensation Sensing – In this mode, the Rain Gauge continuously monitors the clarity of the sensing surface.It’s Raining – Close a skylight at the first sign of rain, and open it when it stops raining.Tipping Bucket – Replace your tipping bucket with a low maintenance alternative.Depending on your mode selected the output will vary. The output I chose is to use a NO/NC which can interpreted by your application. The device includes a series of dip switches that allows it to be set up for the mode of operation that best matches the application. – 1 x Quad Core Cable Between Hyrdeon RG-11 And PLC ($15AUD) – 1 x 12VDC 500ma PSU ($0AUD – Leverage existing PLC PSU) In the last 5 years I have not experienced any false positives.Įnough about the sensor, lets get started Leaves cant clog its mechanism and it just works. It uses the same sensing principle used in millions of automotive rain sensing windshield wiper controls.īeing optical (and not mechanical, chemical, or conductive) it’s far more rugged, sensitive and reliable than other offerings. The Hydreon RG-11 senses water hitting its outside surface using beams of infrared light. It has no moving parts and if my automation journey has taught me anything it is that things with moving parts will eventually break. You can buy cheaper sensors but the reason why I bought the Hydreon RG-11 is simple. ![]() Hydreon RG11 –> PLC (HomeVision Pro) Input Port –> PLC Logic –> OpenSprinkler The task this sensor performs is to measure rain-fall which is then feed in to the PLC, which manipulates OpenSprinkler via its REST API, the whole process looks something like this Here in lies the problem and hence why I utilise a Hyrdeon RG-11 in my house. I would say no, but OpenSprinkler has other ideas. If we receive 50mm of rain yesterday and its sunny today do we need to irrigate? The biggest problem with OpenSprinkler is that it has no context of how much rain has fallen over a given period of time. It is stand-alone has rich integration but there are limitations with a closed platform. It is really good and I think I would rate it an 8/10, its the best controller on the market for the modern age. It is controllable by a web-interface or a HTTP based API. The 101 overview is, OpenSprinkler is a commercial irrigation controller based on an Arduino (ESP32) platform. I use OpenSprinkler to drive my irrigation and I will soon share how I integrate with it in a future article. I guess I haven’t as this sensor has been something that has just worked out of the box and hasn’t skipped a beat in almost 5 years. This is an article I have been meaning to write for some time. ![]()
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