πŸ… TomatoTent Community

The path to the perfect soil sensor

Hello,

as you know, Tomatotent is supposed to have a sensor that tells you when to water.

I have now several times told everyone that the sensors ship in a few days. And I’m starting to feel like a donkey. But every time, the sensors turn out to not work properly.

First, we wanted to use this super expensive soil sensor.

But it does not work at all. It only ever reports that the soil is wet. Until it is totally bone dry and too late.

Fine, we thought.

Instead, we use a so-called Capacitive Sensor:

This one works better. But it seems to have a bug because the values fluctuate at times.

We are very close to getting this sorted. Just for this week, I cannot ship the sensors again. Becasue I want to ship something that works.

That why I ask for a bit more patience.

If, in the meantime, you are unsure if your plants need water, please upload a photo. I can tell you if they are thirsty or not.

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I just received the sensor in the first photo. What does this mean? Will it not work?

It will work, but you will find that the bar graph remains full most of the time.

So its not great. Sorry for sending this sensor, I thought we can fix this in software.

I will ship you another sensor when we have it done. :sweat:

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My advice is after you water lift the pot and feel how heavy it is, when it needs watering it will feel much much lighter. This is the tried and tested method.

That method works well.

Hello,

the soil sensor is now working and will ship to you in the week starting March 2.

We had to start from scratch to get a soil sensor that works great.

You will all be getting this sensor (rugged), made by a guy who spent at least 4 years to get it right.

We have looked at so many sensors, this is the world’s best one.

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Ok, first sensors have arrived and they are working brilliantly (thanks to @tmm1)

Now shipping them over the next week.

They have a temperature thingy on them, too. So you can see the temperature at soil-surface, too.

image

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