INA219 library (example) for MicroPython on ESP8266

example.py

"""Example script.

Edit the I2C interface constant to match the one you have
connected the sensor to.
"""

from ina219 import INA219
from machine import I2C

# Edit to match interface the sensor is connect to (1 or 2).
I2C_INTERFACE_NO = 2
SHUNT_OHMS = 0.1

ina = INA219(SHUNT_OHMS, I2C(I2C_INTERFACE_NO))
ina.configure()
print("Bus Voltage: %.3f V" % ina.voltage())
print("Current: %.3f mA" % ina.current())
print("Power: %.3f mW" % ina.power())