INA3221 3-Channel DC Current Sensor¶
The ina3221 sensor platform allows you to use your INA3221 3-Channel DC Current Sensor
(datasheet,
switchdoc) sensors with
ESPHome. The I²C Bus is
required to be set up in your configuration for this sensor to work.
INA3221 3-Channel DC Current Sensor¶
# Example configuration entry
sensor:
- platform: ina3221
address: 0x40
channel_1:
shunt_resistance: 0.1 ohm
current:
name: "INA3221 Channel 1 Current"
power:
name: "INA3221 Channel 1 Power"
bus_voltage:
name: "INA3221 Channel 1 Bus Voltage"
shunt_voltage:
name: "INA3221 Channel 1 Shunt Voltage"
channel_2:
# ...
channel_3:
# ...
update_interval: 60s
Configuration variables:¶
address (Optional, int): Manually specify the I²C address of the sensor. Defaults to
0x40.channel_1 (Optional): The configuration options for the 1st channel.
shunt_resistance (Optional, float): The value of the shunt resistor on this channel for current calculation. Defaults to
0.1 ohm.current (Optional): Use the current value on this channel in amperes. All options from Sensor.
power (Optional): Use the power value on this channel in watts. All options from Sensor.
bus_voltage (Optional): Use the bus voltage (voltage of the high side contact) value on this channel in V. All options from Sensor.
shunt_voltage (Optional): Use the shunt voltage (voltage across the shunt resistor) value on this channel in V. All options from Sensor.
channel_2 (Optional): The configuration options for the 2nd channel. Same options as 1st channel.
channel_3 (Optional): The configuration options for the 3rd channel. Same options as 1st channel.
update_interval (Optional, Time): The interval to check the sensor. Defaults to
60s.
Pins on the INA3221. For communication only VS, GND, SCL and SDA need to be connected. Note that all 3 channels share the same GND reference.¶