def __init__(self, measure, unit, device, address):
"""Initialize the sensor."""
self._measure = measure
self._unit = unit
i2c_bus = I2C(device)
self._device = device
self._address = address
self.ina219 = INA219(i2c_bus, address)
value = getattr(self.ina219, self._measure)
self._state = round(value, 2)
def power():
print(colored("INA219 started. . .", 'green'))
ina219 = INA219(i2c, addr=0x41)
powers = []
while True:
for i in range(0, 300):
powers.append(ina219.power)
time.sleep(.1)
avg_power_consumption = sum(powers)/len(powers)
with lock:
database.create_record(conn, "Measurements", ("power", avg_power_consumption))
powers = []
def get_voltage(battery):
# Convert 1 to 0x40, 2 to 0x41, etc
addr = "0x" + str(39 + int(battery))
i2c_bus = board.I2C()
ina = INA219(i2c_bus, addr=int(addr, 16))
ina.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina.bus_voltage_range = BusVoltageRange.RANGE_16V
voltage = ina.bus_voltage
voltagerounded = round(voltage, 2)
return str(voltagerounded)
def getPowerLevels():
import board
from adafruit_ina219 import INA219, ADCResolution, BusVoltageRange
dic = {0x40: "Pi", 0x41: "Battery", 0x42: "Solar", 0x43: "Unknown"}
i2c_bus = board.I2C()
for address in dic:
ina = INA219(i2c_bus, addr=address)
ina.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina.bus_voltage_range = BusVoltageRange.RANGE_16V
yield PowerLevel(dic[address], ina.bus_voltage, ina.power, ina.current,
ina.shunt_voltage)
i2c_bus.deinit()
def recordEnergyConsumption(path='data'):
print("ina219 start")
fileName = path + '/ina219-' + str(datetime.date.today()) + '-' + str(
int(time.time())) + '.csv'
i2c_bus = board.I2C()
ina219 = INA219(i2c_bus)
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_128S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_128S
# optional : change voltage range to 16V
ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
ina219.mode = Mode.SVOLT_CONTINUOUS
dataDF = pd.DataFrame(columns=['mA', 'V', 'time'])
startTime = time.time()
#run till selenium done
while global_flag:
if ina219.conversion_ready == 1:
bus_voltage = ina219.bus_voltage # voltage on V- (load side)
current = ina219.current # current in mA
dataDF = dataDF.append(
{
'mA': current,
'V': bus_voltage,
'time': time.time()
},
ignore_index=True)
elapsedTime = time.time()
testTime = elapsedTime - startTime
#save data to file
try:
with open(fileName) as csvfile:
print("This file already exists!")
except:
dataDF.to_csv(fileName, sep=',', index=False)
print("ina219 done")
if (len(sys.argv)) > 1:
# print("There are arguments!")
# if (('a' == sys.argv[1]) or ('afsk' in sys.argv[1])):
bus = int(sys.argv[1], base=10)
if (len(sys.argv)) > 2:
address = int(sys.argv[2], base=16)
else:
address = 0x40
else:
bus = 1
address = 0x40
try:
# Create library object using Extended Bus I2C port
i2c_bus = I2C(bus) # 1 Device is /dev/i2c-1
ina219 = INA219(i2c_bus, address)
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_1S # 32S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_1S # 32S
# optional : change voltage range to 16V
ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
current = ina219.current # current in mA
print("{:9.1f}".format(current))
except:
print("0.0 Error")
#
"""Sample code and test for adafruit_in219"""
import sys
import time
import board
from adafruit_ina219 import ADCResolution, BusVoltageRange, INA219
addr = 0x40
if len(sys.argv) > 1:
addr = int(sys.argv[1])
i2c_bus = board.I2C()
ina219 = INA219(i2c_bus, addr=addr)
print("ina219 test (addr:" + str(addr) + ")")
# display some of the advanced field (just to test)
print("Config register:")
print(" bus_voltage_range: 0x%1X" % ina219.bus_voltage_range)
print(" gain: 0x%1X" % ina219.gain)
print(" bus_adc_resolution: 0x%1X" % ina219.bus_adc_resolution)
print(" shunt_adc_resolution: 0x%1X" % ina219.shunt_adc_resolution)
print(" mode: 0x%1X" % ina219.mode)
print("")
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
def initialize(self):
"""
Initialize INA219x sensor
"""
from adafruit_ina219 import INA219, ADCResolution, BusVoltageRange
from adafruit_extended_bus import ExtendedI2C
try:
self.sensor = INA219(ExtendedI2C(self.input_dev.i2c_bus),
addr=int(str(self.input_dev.i2c_location),
16))
except (ValueError, OSError) as msg:
self.logger.exception("INA219x Exception: %s", msg)
return None
if not self.sensor:
self.logger.error("INA219x sensor unable to initialize.")
return None
self.measurements_for_average = self.measurements_for_average
# calibrate voltage and current detection range
if self.calibration == '1':
self.sensor.set_calibration_32V_1A()
self.logger.debug("INA219x: set_calibration_32V_1A()")
elif self.calibration == '2':
self.sensor.set_calibration_16V_400mA()
self.logger.debug("INA219x: set_calibration_16V_400mA()")
elif self.calibration == '3':
self.sensor.set_calibration_16V_5A()
self.logger.debug("INA219x: set_calibration_16V_5A()")
else:
# use default sensor calibration of 32V / 2A
self.sensor.set_calibration_32V_2A()
self.logger.debug("INA219x: set_calibration_32V_2A()")
BUS_VOLTAGE_RANGE = {
'0': BusVoltageRange.RANGE_16V,
'1': BusVoltageRange.RANGE_32V
}
# calibrate sensor bus voltage range
self.sensor.bus_voltage_range = BUS_VOLTAGE_RANGE.get(
self.bus_voltage_range, BUS_VOLTAGE_RANGE['1'])
ADC_RESOLUTION = {
'00': ADCResolution.ADCRES_9BIT_1S,
'01': ADCResolution.ADCRES_10BIT_1S,
'02': ADCResolution.ADCRES_11BIT_1S,
'03': ADCResolution.ADCRES_12BIT_1S,
'09': ADCResolution.ADCRES_12BIT_2S,
'0A': ADCResolution.ADCRES_12BIT_4S,
'0B': ADCResolution.ADCRES_12BIT_8S,
'0C': ADCResolution.ADCRES_12BIT_16S,
'0D': ADCResolution.ADCRES_12BIT_32S,
'0E': ADCResolution.ADCRES_12BIT_64S,
'0F': ADCResolution.ADCRES_12BIT_128S
}
# calibrate sensor ADC resolutions
self.sensor.bus_adc_resolution = ADC_RESOLUTION.get(
self.bus_adc_resolution, ADC_RESOLUTION['03'])
self.sensor.shunt_adc_resolution = ADC_RESOLUTION.get(
self.shunt_adc_resolution, ADC_RESOLUTION['03'])
def __init__(self):
i2c = busio.I2C(board.SCL, board.SDA)
self.device = INA219(i2c)
from adafruit_ina219 import ADCResolution, BusVoltageRange
addresses = [0x40, 0x41, 0x44, 0x45] #INA219 addresses on the bus
# print("buses: ", buses, " addr: ", addresses)
for x in buses:
try:
i2c_bus = I2C(x) # Device is /dev/i2c-x
for y in addresses:
# print(x,y)
try:
# Create library object using Extended Bus I2C port
# print("bus: ", x, " addr: ", y)
if x == 0 and y == 0x45:
# print("Reading INA219 in MoPower Board")
i2c_bus = I2C(1)
ina219 = INA219(i2c_bus, 0x4a)
else:
ina219 = INA219(i2c_bus, y)
# print("ina219 test")
if config:
# print("Configuring")
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
# optional : change voltage range to 16V
ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
bus_voltage = ina219.bus_voltage # voltage on V- (load side)
# shunt_voltage = ina219.shunt_voltage # voltage between V+ and V- across the shunt
current = ina219.current # current in mA
servoX_value = 2.5
servoY_value = 2.5
servoX.start(servoX_value)
servoY.start(servoY_value)
servoX_value_old = 2.5
servoY_value_old = 2.5
time.sleep(2)
ldr = {"lb": 0, "rb": 0, "lo": 0, "ro": 0}
adc = ADC(10**5)
offset = 15
ldr_counter = 0
i2c_bus = board.I2C()
manual_mode = 0
ip_old = ""
solar = INA219(i2c_bus, 0x41)
battery = INA219(i2c_bus, 0x40)
def get_all_ldr():
ldr["lb"] = adc.analogRead(0)
ldr["lo"] = adc.analogRead(1)
ldr["rb"] = adc.analogRead(2)
ldr["ro"] = adc.analogRead(3)
servo_move(ldr)
def get_ip_print_to_display():
global ip_old
ips = str(check_output(['hostname', '-I']))
ipslist = ips.replace("b'", "").split(" ")
def main():
global DISPLAY_ENABLED
global Logging_ENABLED
# Create the I2C interface.
i2c = busio.I2C(board.SCL, board.SDA)
# Create the SSD1306 OLED class.
# The first two parameters are the pixel width and pixel height.
# Change these to the right size for your display!
try:
disp = adafruit_ssd1306.SSD1306_I2C(128, 32, i2c)
except:
print("Searching SSD1306 Display ... Failed!\n")
DISPLAY_ENABLED = False
if (DISPLAY_ENABLED):
print("Display ... Enabled\n")
# Clear display.
disp.fill(0)
disp.show()
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
width = disp.width
height = disp.height
image = Image.new('1', (width, height))
# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# Draw a black filled box to clear the image.
draw.rectangle((0, 0, width, height), outline=0, fill=0)
# Draw some shapes.
# First define some constants to allow easy resizing of shapes.
padding = -2
top = padding
bottom = height - padding
# Move left to right keeping track of the current x position for drawing shapes.
x = 0
# Load default font.
font = ImageFont.load_default()
# Alternativly load TTF font. Make sure the .ttf font file is in the
# same directory as the python script!
# Some other nice fonts to try: http://www.dafont.com/bitmap.php
# font = ImageFont.truetype('/user/share/fonts/truetype/dejavu/DejaVuSans.ttf', g)
# Draw a black Filled box to clear the image.
draw.rectangle((0, 0, width, height), outline=0, fill=0)
# Shell scripts for system monitoring from here:
# https://unix.stackexchange.com/questions/119126/command-to-display-memory-usage-disk-usage-and-cpu-load
cmd = "hostname -I | cut -d\' \' -f1" ## cut -d' ' -f1
IP = subprocess.check_output(cmd, shell=True).decode("utf-8")
draw.text((x, top + 0), "IP: " + IP, font=font, fill=255)
# Display image.
disp.image(image)
disp.show()
ina219_1 = INA219(i2c_bus=i2c, addr=0x40)
ina219_1 = config_ina219(ina219_1)
ina219_2 = INA219(i2c_bus=i2c, addr=0x41)
config_ina219(ina219_2)
# display some of the advanced field (just to test)
print("INA219 Config Register:")
print(" bus_voltage_range: 0x%1X" % ina219_1.bus_voltage_range)
print(" gain: 0x%1X" % ina219_1.gain)
print(" bus_adc_resolution: 0x%1X" % ina219_1.bus_adc_resolution)
print(" shunt_adc_resolution: 0x%1X" % ina219_1.shunt_adc_resolution)
print(" mode: 0x%1X" % ina219_1.mode)
print("")
try:
duration = 0.01 # arg[1] sample duration in hours -- (36s)
dly = 1 # arg[2] sample timer interval in seconds -- (10s)
if (len(sys.argv) == 3):
Logging_ENABLED = True
print('Logging ... Enalbed')
if ((float(sys.argv[1]) < 48)
and (float(sys.argv[1]) > 0)): # maximum 48 hours
duration = float(sys.argv[1])
if ((int(sys.argv[2]) < 100) and (int(sys.argv[2]) > 0)):
dly = int(sys.argv[2])
print('Sample duration: %.3f hours, interval: %02d seconds' %
(duration, dly))
wdir = './log'
if (os.path.exists(wdir)):
print("Log folder exists")
else:
os.mkdir(wdir)
else:
Logging_ENABLED = False
print('Logging ... Disabled!')
print("")
count = 0
fidx = 1
t0 = datetime.datetime.now()
if (Logging_ENABLED):
fn = t0.strftime("%Y-%m%d-%H%M") + '-%ds.log' % dly
f = open(wdir + '/' + fn, 'w')
print('--------------------------------------')
print('ina1 V mA | ina2 V mA')
print('--------------------------------------')
while (1):
# check sample time
t1 = datetime.datetime.now()
dt = t1 - t0
hours_passed = get_hours_passed(dt)
# s = dt.total_seconds()
# elapsed_time = '{:02}:{:02}:{:02}'.format(s // 3600, s % 3600 // 60, s % 60)
elapsed_time = str(dt).split('.')[0]
if (Logging_ENABLED and (hours_passed > duration)):
break
if (Logging_ENABLED and (count != 0 and count % 500 == 0)):
# close current file first
f.close()
fidx += 1
t = datetime.datetime.now()
fn = t.strftime("%Y-%m%d-%H%M") + '-%ds.log' % dly
f = open(wdir + '/' + fn, 'w')
count += 1
v1, i1, v2, i2 = read_ina_2(ina219_1, ina219_2)
if (Logging_ENABLED):
f.write('%0.3f,%0.3f,%0.3f,%0.3f\n' % (v1, i1, v2, i2))
test1 = '0x{0:x}: {1:0.3f}V {2:0.3f}mA'.format(
ina219_1.i2c_addr, v1, i1)
test2 = '0x{0:x}: {1:0.3f}V {2:0.3f}mA'.format(
ina219_2.i2c_addr, v2, i2)
print(test1 + '|' + test2)
# print('0x{0:x}: {1:0.3f}V {2:0.3f}mA | 0x{3:x}: {4:0.3f}V {5:0.3f}mA'.format(
# ina219_1.i2c_addr, v1, i1, ina219_2.i2c_addr, v2, i2))
if (DISPLAY_ENABLED):
# Draw a black Filled box to clear the image.
draw.rectangle((0, top + 9, width, height - (top + 9)),
outline=0,
fill=0)
# draw.text((x, top+8), 'Elapsed T: %.1f (m)'%(hours_passed*60), font=font, fill=255)
draw.text((x, top + 8),
'Elapsed: ' + elapsed_time,
font=font,
fill=255)
draw.text((x, top + 16), test1, font=font, fill=255)
draw.text((x, top + 25), test2, font=font, fill=255)
disp.image(image)
disp.show()
time.sleep(dly)
if (Logging_ENABLED and (not f.closed)):
f.close()
except KeyboardInterrupt:
print("\nCtrl-C pressed. Program exiting...")
finally:
pass
# ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
# except:
# print("Python Error 2", file=sys.stderr, flush=True)
# except:
# print("Python Error 1", file=sys.stderr, flush=True)
# No try checking yet
# if buses[0] == 0 and addresses[0] == 0x45:
# print("Reading INA219 in MoPower Board")
# ina219_one = INA219(I2C(1), 0x4a)
# else:
if (buses[0] != -1):
try:
i2c_one = I2C(buses[0])
try:
ina219_one = INA219(i2c_one, addresses[0])
ina219_one.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
time.sleep(0.001)
ina219_one.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
time.sleep(0.001)
ina219_one.bus_voltage_range = BusVoltageRange.RANGE_16V
time.sleep(0.01)
one = 1
except:
# print("Python Error 3", file=sys.stderr, flush=True)
one = 0
try:
ina219_two = INA219(i2c_one, addresses[1])
ina219_two.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
time.sleep(0.001)
ina219_two.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S # 1S
def recordEnergyConsumption(path='data'):
print("ina219 start")
fileName = path+'/ina219-'+str(datetime.date.today())+'-'+str(int(time.time()))+'.csv'
print(fileName)
i2c_bus = board.I2C()
ina219 = INA219(i2c_bus)
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_128S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_128S
# optional : change voltage range to 16V
ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
ina219.mode = Mode.SVOLT_CONTINUOUS
# display some of the advanced field
# see https://github.com/adafruit/Adafruit_CircuitPython_INA219/blob/master/adafruit_ina219.py class ADCResolution for details
"""
print("Arguments: " + str(sys.argv))
print("Config register:")
print(" bus_voltage_range: 0x%1X" % ina219.bus_voltage_range)
print(" gain: 0x%1X" % ina219.gain)
print(" bus_adc_resolution: 0x%1X" % ina219.bus_adc_resolution)
print(" shunt_adc_resolution: 0x%1X" % ina219.shunt_adc_resolution)
print(" mode: 0x%1X" % ina219.mode)
print(" conversion ready bit: 0x%1X" % ina219.conversion_ready)
print("")
"""
dataDF = pd.DataFrame(columns=['mA','V','time'])
#testTime = float(sys.argv[1])
testTime = 600
#clear sample lists
#testResults = []
elapsedTime = time.time()
startTime = time.time()
#run each test for X seconds
while elapsedTime - startTime < testTime :
if ina219.conversion_ready == 1:
bus_voltage = ina219.bus_voltage # voltage on V- (load side)
#shunt_voltage = ina219.shunt_voltage # voltage between V+ and V- across the shunt
current = ina219.current # current in mA
dataDF = dataDF.append({'mA' : current , 'V' : bus_voltage, 'time': time.time()},ignore_index=True)
#else:
#print(" conversion ready bit: 0x%1X" % ina219.conversion_ready)
elapsedTime = time.time()
print("ina219: Test time: {}".format(elapsedTime - startTime))
#divide the amount of samples by 10 seconds to get the per second amount
print("ina219: Samples per second: {}".format(len(dataDF)/testTime))
#print(testResults)
#print(dataDF)
#save data to file
# check if the file already exists
try:
with open(fileName) as csvfile:
print("This file already exists!")
except:
dataDF.to_csv(fileName, sep=',',index=False)
print("ina219 done")
"""Sample code and test for adafruit_in219"""
import time
import board
from adafruit_ina219 import ADCResolution, BusVoltageRange, INA219
i2c_bus = board.I2C()
ina1 = INA219(i2c_bus,addr=0x40)
ina2 = INA219(i2c_bus,addr=0x41)
ina3 = INA219(i2c_bus,addr=0x42)
print("ina219 test")
ina1.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina1.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina1.bus_voltage_range = BusVoltageRange.RANGE_16V
ina2.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina2.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina2.bus_voltage_range = BusVoltageRange.RANGE_16V
ina3.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina3.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina3.bus_voltage_range = BusVoltageRange.RANGE_16V
# measure and display loop
while True:
bus_voltage1 = ina1.bus_voltage # voltage on V- (load side)
"""Sample code and test for adafruit_in219"""
import time
import board
from adafruit_ina219 import ADCResolution, BusVoltageRange, INA219
i2c_bus = board.I2C()
ina219 = INA219(i2c_bus, 0x41)
ina219.set_calibration_16V_5A()
print("ina219 test")
# display some of the advanced field (just to test)
print("Config register:")
print(" bus_voltage_range: 0x%1X" % ina219.bus_voltage_range)
print(" gain: 0x%1X" % ina219.gain)
print(" bus_adc_resolution: 0x%1X" % ina219.bus_adc_resolution)
print(" shunt_adc_resolution: 0x%1X" % ina219.shunt_adc_resolution)
print(" mode: 0x%1X" % ina219.mode)
print("")
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
#ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
#ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
# optional : change voltage range to 16V
#ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
# measure and display loop
while True:
bus_voltage = ina219.bus_voltage # voltage on V- (load side)
import busio
from robohat_mpu9250.mpu9250 import MPU9250
from robohat_mpu9250.mpu6500 import MPU6500
from robohat_mpu9250.ak8963 import AK8963
from adafruit_ina219 import INA219
from time import sleep
i2c = busio.I2C(board.SCL, board.SDA)
mpu = MPU6500(i2c, address=0x69)
ak = AK8963(i2c)
sensor_mpuak = MPU9250(mpu, ak)
ina219 = INA219(i2c, 0x41)
serial = 1
delay = 0.1
capability = "serial,gyro,accel,magnetic,temperature,nmea,vbus,vshunt,current"
print("MM1 cpy JSON Agent (PoC)")
json_sot = "{"
json_eot = "}"
while True:
# Fake data for json testing
LON = random.uniform(1, 180)
LAT = random.uniform(1, 180)
import board
from adafruit_ina219 import ADCResolution, BusVoltageRange, INA219
# SW-420 accelerometer libraries
import busio
import adafruit_adxl34x
# import json libraries
import json
# time libraries
from datetime import datetime
import time
i2c_bus = board.I2C()
ina219 = INA219(i2c_bus)
print("ina219 test")
# optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage
ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S
ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S
# optional : change voltage range to 16V
ina219.bus_voltage_range = BusVoltageRange.RANGE_16V
# get accelerometer data
i2c = busio.I2C(board.SCL, board.SDA)
accelerometer = adafruit_adxl34x.ADXL345(i2c)
# reads all sensors values
def read_all_sensors():
sleep(1) i2c_bus.writeto(0x72, " V1.0") sleep(1) i2c_bus.writeto(0x72, bytes([0x7C])) sleep(1) i2c_bus.writeto(0x72, bytes([0x2B])) sleep(1) i2c_bus.writeto(0x72, bytes([0x00])) sleep(1) i2c_bus.writeto(0x72, bytes([0xFF])) sleep(1) i2c_bus.writeto(0x72, bytes([0x00])) sleep(1) i2c_bus.unlock() ina219 = INA219(i2c_bus, 0x40) # Accessory Supply ina219_1 = INA219(i2c_bus, 0X41) # Street Light Supply range = ina219.bus_voltage_range range = ina219_1.bus_voltage_range # optional : change configuration to use 32 samples averaging for both bus voltage and shunt voltage ina219.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S ina219.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S ina219_1.bus_adc_resolution = ADCResolution.ADCRES_12BIT_32S ina219_1.shunt_adc_resolution = ADCResolution.ADCRES_12BIT_32S # optional : change voltage range to 16V ina219.bus_voltage_range = BusVoltageRange.RANGE_16V ina219_1.bus_voltage_range = BusVoltageRange.RANGE_16V