getting more and more wet
anonymous 2020-09-01 21:57:37 1744 Views18 Replies I have the following set of readings from a capacitive soil moisture sensor V1.0:
369
362
359
357
No water has been added to the pot.
Can anyone explain?
best regards
torben
2020-09-04 15:39:30 Hi,
Yes, things appear to have stabilised now.
You say I should water at 492? I had the watering point at 470 at one point, but that appeared to be far to dry.
torben
anonymous
Yes, things appear to have stabilised now.
You say I should water at 492? I had the watering point at 470 at one point, but that appeared to be far to dry.
torben
anonymous 2020-09-04 15:39:30 Hi,
Yes, things appear to have stabilised now.
You say I should water at 492? I had the watering point at 470 at one point, but that appeared to be far to dry.
torben anonymous
Yes, things appear to have stabilised now.
You say I should water at 492? I had the watering point at 470 at one point, but that appeared to be far to dry.
torben
anonymous 2020-09-03 18:30:31 Hi,
I dont want to interrupt the sequence I have running for 2 sensors, but as far as I remember the reading in open air was 600+ and the reading in water was about 280. Should it be necessary to calibrate when I water the pot and then take the average of 10 readings as the wet base - and dont touch the sensor thereafter?
I now think that my wet basis setting of 362 is too wet and the setting of 382 for starting to water is far too low. I have to experiment some more.
torben
Hi,
I have just seen a drop from 378 to 364 over 8 minutes.
torben anonymous
I dont want to interrupt the sequence I have running for 2 sensors, but as far as I remember the reading in open air was 600+ and the reading in water was about 280. Should it be necessary to calibrate when I water the pot and then take the average of 10 readings as the wet base - and dont touch the sensor thereafter?
I now think that my wet basis setting of 362 is too wet and the setting of 382 for starting to water is far too low. I have to experiment some more.
torben
Hi,
I have just seen a drop from 378 to 364 over 8 minutes.
torben
anonymous 2020-09-03 18:30:31 Hi,
I dont want to interrupt the sequence I have running for 2 sensors, but as far as I remember the reading in open air was 600+ and the reading in water was about 280. Should it be necessary to calibrate when I water the pot and then take the average of 10 readings as the wet base - and dont touch the sensor thereafter?
I now think that my wet basis setting of 362 is too wet and the setting of 382 for starting to water is far too low. I have to experiment some more.
torben
Hi,
I have just seen a drop from 378 to 364 over 8 minutes.
torben anonymous
I dont want to interrupt the sequence I have running for 2 sensors, but as far as I remember the reading in open air was 600+ and the reading in water was about 280. Should it be necessary to calibrate when I water the pot and then take the average of 10 readings as the wet base - and dont touch the sensor thereafter?
I now think that my wet basis setting of 362 is too wet and the setting of 382 for starting to water is far too low. I have to experiment some more.
torben
Hi,
I have just seen a drop from 378 to 364 over 8 minutes.
torben
anonymous 2020-09-02 16:50:53 Hi,
I have about 10 potted plants watered automatically based on the sensor readings. Yesterday they started very wet. I took the average of 10 readings as a basis and found 362. The sensor is in one of the plants and it just sits there while I take readings and send them wirelessly every 8th minute to a computer. In the beginning the readings went from 362 to 367. Then they started going down to 357 and stayed there for quite a while and then started to crawl up again. Now they are at 363.
I started measuring in the afternoon with sunshine and continued through the night. Now it is morning the next day. The temperature went from about 20 C to 15 C.
At one time the reading went from 362 to 359 in one 8 minutes time interval.
I think the sensor will give another result if I take it up and put it down in a slightly different place. Because of that, and because the soil quality may be different from pot to pot, I find the basis as the average of 10 readings.
I suspect I should find the dry level to be around a reading of 385 to 405 which is surprising low.
The power supply is 3 x 1.5 V batteries. It started at 4.160 V and went rather quickly to 4.220 V where it stayed.
I hope that helps.
torben anonymous
I have about 10 potted plants watered automatically based on the sensor readings. Yesterday they started very wet. I took the average of 10 readings as a basis and found 362. The sensor is in one of the plants and it just sits there while I take readings and send them wirelessly every 8th minute to a computer. In the beginning the readings went from 362 to 367. Then they started going down to 357 and stayed there for quite a while and then started to crawl up again. Now they are at 363.
I started measuring in the afternoon with sunshine and continued through the night. Now it is morning the next day. The temperature went from about 20 C to 15 C.
At one time the reading went from 362 to 359 in one 8 minutes time interval.
I think the sensor will give another result if I take it up and put it down in a slightly different place. Because of that, and because the soil quality may be different from pot to pot, I find the basis as the average of 10 readings.
I suspect I should find the dry level to be around a reading of 385 to 405 which is surprising low.
The power supply is 3 x 1.5 V batteries. It started at 4.160 V and went rather quickly to 4.220 V where it stayed.
I hope that helps.
torben
anonymous 2020-09-02 16:50:53 Hi,
I have about 10 potted plants watered automatically based on the sensor readings. Yesterday they started very wet. I took the average of 10 readings as a basis and found 362. The sensor is in one of the plants and it just sits there while I take readings and send them wirelessly every 8th minute to a computer. In the beginning the readings went from 362 to 367. Then they started going down to 357 and stayed there for quite a while and then started to crawl up again. Now they are at 363.
I started measuring in the afternoon with sunshine and continued through the night. Now it is morning the next day. The temperature went from about 20 C to 15 C.
At one time the reading went from 362 to 359 in one 8 minutes time interval.
I think the sensor will give another result if I take it up and put it down in a slightly different place. Because of that, and because the soil quality may be different from pot to pot, I find the basis as the average of 10 readings.
I suspect I should find the dry level to be around a reading of 385 to 405 which is surprising low.
The power supply is 3 x 1.5 V batteries. It started at 4.160 V and went rather quickly to 4.220 V where it stayed.
I hope that helps.
torben anonymous
I have about 10 potted plants watered automatically based on the sensor readings. Yesterday they started very wet. I took the average of 10 readings as a basis and found 362. The sensor is in one of the plants and it just sits there while I take readings and send them wirelessly every 8th minute to a computer. In the beginning the readings went from 362 to 367. Then they started going down to 357 and stayed there for quite a while and then started to crawl up again. Now they are at 363.
I started measuring in the afternoon with sunshine and continued through the night. Now it is morning the next day. The temperature went from about 20 C to 15 C.
At one time the reading went from 362 to 359 in one 8 minutes time interval.
I think the sensor will give another result if I take it up and put it down in a slightly different place. Because of that, and because the soil quality may be different from pot to pot, I find the basis as the average of 10 readings.
I suspect I should find the dry level to be around a reading of 385 to 405 which is surprising low.
The power supply is 3 x 1.5 V batteries. It started at 4.160 V and went rather quickly to 4.220 V where it stayed.
I hope that helps.
torben
anonymous 2020-09-01 22:02:54 Hi I should add that up to the beginning (369) the values have been steadily increasing.
torben anonymous
torben
anonymous 2020-09-01 22:02:54 Hi I should add that up to the beginning (369) the values have been steadily increasing.
torben anonymous
torben
anonymous 2020-09-01 21:57:37 H,
I have the following set of readings from a capacitive soil moisture sensor V1.0:
369
362
359
357
No water has been added to the pot.
Can anyone explain?
best regards
torben anonymous
I have the following set of readings from a capacitive soil moisture sensor V1.0:
369
362
359
357
No water has been added to the pot.
Can anyone explain?
best regards
torben
anonymous 