USB – A type connector cable. Use Raspberry PI, PC or Android phone/tablet via OTG to monitor soil moisture, Temperature , ECDesigned by tinovi, Ships from Latvia
USB Soil Moisture/Water content, Temperature , EC sensor Sensor PM-WCS-3-USB is low cost, precision soil moisture sensor with USB CDC-ACM virtual COM port and 115200 baudrate. Sensor is dust and wa...Read More…
Sensor PM-WCS-3-USB is low cost, precision soil moisture sensor with USB CDC-ACM virtual COM port and 115200 baudrate.
Sensor is dust and water proof, every sensor is tested by submerging it in to the water.
Sensor is equipped with standard 2.4 or 3 meter long USB 2.0 cable.
On linux it will be detected as /dev/ttyACM0.
For linux permissions settings please consult
On Linux you may use minicom utility to configure sensor.
For windows PuTTY may be used.
We recommend Android mobile application for sensor setup and data reading/storage.
PM-WCS-3-USB data output prints comma separated values (CSV) sequenced as described below.
Dielectric permittivity (ε) (Temperature corrected) resolution: 0.1ε and range 1 (air) to 80 (water)
Electrical Conductivity (dS/m) resolution: 0.01 dS/m and range: 0 to 23 dS/m
Temperature (°C) resolution: 0.1°C and range: -20 to 60°C
Volumetric Water Content (%) resolution:0.1% and range: 0 – 100% VWC Note: VWC is calculated from dielectric permittivity by Topp equation (Topp et al, 1980): θ = 4.3 ⋅ 10−6ε3 − 0.00055ε2 + 0.0292ε − 0.053)
Optionally you may setup EPOCH time (Table 3.2.1 command: “time”) in seconds and there will be time parameter added in front. See documentation for more information.
You can write simple script to start log sensor USB data to CSV file.
This sample is written for Raspberry Pi, Debian, Ubuntu linux, before executing script you have to install minicom: sudo apt-get install minicom
sudo stty -F $PT speed 115200 cs8 -cstopb -parenb -echo raw
echo -ne “time $(date +%s)\r” > $PT
echo -ne “millis 5000\r” > $PT
timeout 2s cat $PT
cat $PT > swout.csv 2>&1 &
We recognize our top users by making them a Tindarian. Tindarians have access to secret & unreleased features.
We look for the most active & best members of the Tindie community, and invite them to join. There isn't a selection process or form to fill out. The only way to become a Tindarian is by being a nice & active member of the Tindie community!
VAT registered self emploe