Software flow meter "pulse"?

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Seth

May 16, 2019 15:06

I've seen that flow meter support was added to the Touch HD, but that it uses the same pins as the rain sensor and thus only one of rain sensor or flow meter is supported. I want both.

So my idea was to send the flow "pulse" to the Touch HD by software API call by having a water meter with pulse output hooked up to a small Audrino that would make the API call to the Rainmachine every time it detected the hardware pulse from the actual meter. I very quickly looked at rainmachine.docs.apiary.io to see if there was anything that looked like it would do that and didn't see anything.

So two questions:

1) Is there a API input method to pulse the flow meter counter in the Rainmachine? (and I just missed it)

2) If not, could you add it to the API to allow other creative solutions to feed the Raimachine flow data?

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  Edwin September 18, 2019 11:37

  I would be interested in doing something similar. In my case I need to have 2 different flow meters feed in data and I was considering using a similar approach. Did you manage to find an answer about the API?

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  RainMachine Nicholas September 30, 2019 09:37 (Edited September 30, 2019 09:37)

  There is a way to feed data but I'm not sure how the apps will behave displaying flow data when rain sensor is selected as ON.

  To send data a POST to /api/4/provision with the keys should cover most scenarios:

  flowSensorLeakClicks: 0  // How many leak clicks counted
  flowSensorStartIndex: 0 //The index on the water meter before connecting it to RainMachine
  flowSensorClicksPerCubicMeter: 2640 // How many clicks mean 1 cubic meter of water flow
  flowSensorWateringClicks: 0 // watering clicks counter
  

  But the most important part is that Touch HD doesn't support the Flow and Rain in the same time. For example watering clicks won't be recoderded in DB when watering if flow sensor is off so the most difficult part would be to force RainMachine to enable both (since API won't let you it will automatically toggle one other off).

  Only way to do this currently would be to manually edit /rainmachine-app/DB/Default/rainmachine-settings.sqlite and put both useRainSensor and useFlowMeter to true. You can transfer this file from/to RainMachine doing a scp from your computer.

   

   

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  Seth October 09, 2019 16:27

  I suppose it could be done the other way around: move the rain sensor to a device (thinking an Arduino) that can send a "pause" or "stop" API call to the RainMachine and connect the flow meter directly.

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