Bernd | Dec. 10, 2019

Jens | Oct. 28, 2019

Really solid sensor. Top of class!

For I2C Soil moisture sensor

This is the best capacitive moisture sensor I've tested. It's fully featured, close to linear (to the degree I can measure it) and very flexible. I love that you can change the I2C address that easily, making it possible to have 100+ of these on one single micro (in theory, not reality). Well worth the money. I did a longer writeup and comparison of this and others on my blog https://flashgamer.com/blog/comments/testing-capacitive-soil-moisture-sensors

×

Response from Catnip electronics | Nov. 1, 2019

Thanks for a good review and a very nice writeup! Regarding linearity - I must say this is true only with tap water. When in soil, salinity plays an important role - you can see a graph in pictures of the sensor on this page.

Slaven | July 10, 2019

Great product so far...

For Modbus RS485 soil moisture sensor

Hi I bought Modbus RS485 soil moisture sensor with usb dongle and tested it with python library available on raspberry pi.

It's very easy to setup on raspberry pi...

Now I'm trying to figure out how to use it with arduino uno and I'm not quite sure how to do it.

I saw Henry's review saying he is using MKR1000 and on his github (https://github.com/lincoln2016/Arduino-RS485-Moisture-Sensor) he wrote that he is using MKR 485 Shield for it (https://store.arduino.cc/arduino-mkr-485-shield).

This is the part I'm not sure about, in the example and the documentation there is no word about needing to use RS-485 shield for the arduino?

I'm more of a programmer and less electronics guy so please consider that when reading this review I'm not sure if I can use Modbus RS485 soil moisture sensor directly on my arduino uno without a shield, any help or input is much appreciated.

Can you somehow contact me...

Slaven Olujic

×

Response from Catnip electronics | July 10, 2019

Hi Slaven,

Thank you for your review. RS485 is a specific electric level protocol that needs a special transceiver chip to interface. So to answer your question - yes, you do need a RS485 shield or a single chip to interface the sensor from Arduino or any other platform for that matter. For example - USB-to-RS485 dongle does just that - interfaces USB to RS485.

Tim | June 4, 2019

Not a bad item, but bad comms from the maker.

For I2C Soil moisture sensor

Soil sensor appears to have a problem when put to sleep. Resolved by removing power to the sensor when the controlling micro is asleep and then powering the soil sensor fresh every time. I asked the maker for advice but no contact after 10 days.

Aside from that, the sensor is well made and outputs a stable moisture reading.

×

Response from Catnip electronics | June 6, 2019

Hi there,

I have written two emails to you, but got no response, probably our mailing systems are not playing nice. Can you please file a bug report on github page? https://github.com/Miceuz/i2c-moisture-sensor/issues

Ors | May 23, 2019