PMWCS3 Capacitive Soil Moisture and Temperature Sensor¶
The pmwcs3 sensor platform allows you to use your PMWCS3
(informations)
capacitive soil moisture and temperature sensor with ESPHome. The I²C bus is required to be set up in
your configuration for this sensor to work. Wiring scheme: red is 3.3V, black & shield is GND, green is SDA and white is SCL.
2.2kOhm resistors are advised to pullup both SDA & SDA lines.
PMWCS3 Capacitive Soil Moisture and Temperature Sensor.¶
# Example configuration entry
sensor:
- platform: pmwcs3
e25:
name: "pmwcs3 e25"
ec:
name: "pmwcs3 ec"
temperature:
name: "pmwcs3 temperature"
vwc:
name: "pmwcs3 vwc"
Configuration variables:¶
e25 (Optional): Electrical Conductivity, reference at 25°C in dS/m. All options from Sensor.
ec (Optional): Electrical Conductivity in mS/m. All options from Sensor.
temperature (Optional): Soil temperature in °C. All options from Sensor.
vwc (Optional): Volumetric Water Content in cm3cm−3. All options from Sensor.
address (Optional, int): Manually specify the I²C address of the sensor. Defaults to
0x63.update_interval (Optional, Time): The interval to check the sensor. Defaults to
60s.
pmwcs3.air_calibration Action¶
The pmwcs3 probe can to be calibrated in dry/air conditions. The air calibration is a 30s procedure.
# Example configuration entry
sensor:
- platform: pmwcs3
id: pmwcs3_id
# ...
# in some trigger
on_...:
- sensor.pmwcs3_id.air_calibration:
id: pmwcs3_id
Configuration option:
id (Required, ID): The ID of the pmwcs3 sensor.
pmwcs3.water_calibration Action¶
The pmwcs3 probe can to be also calibrated in water saturated conditions. Install the probe into a glass of water. The water calibration is also a 30s procedure.
# Example configuration entry
sensor:
- platform: pmwcs3
id: pmwcs3_id
# ...
# in some trigger
on_...:
- sensor.pmwcs3_id.water_calibration:
id: pmwcs3_id
Configuration option:
id (Required, ID): The ID of the pmwcs3 sensor.
pmwcs3.new_i2c_address Action¶
A new I2C address can be set (for multi-probes cases for example)
# Example configuration entry
sensor:
- platform: pmwcs3
id: pmwcs3_id
# ...
# in some trigger
on_...:
- sensor.pmwcs3_id.new_i2c_address:
id: pmwcs3_id
address: 0x65
Configuration options:
id (Required, ID): The ID of the pmwcs3 sensor.
address (Required, int): New I2C address.