def __init__(self): GPIO.setmode(GPIO.BCM) GPIO.setwarnings(False) for pin in self.leds.itervalues(): GPIO.setup(pin, GPIO.OUT) GPIO.output(pin, GPIO.LOW) for pin in self.powerModes.itervalues(): GPIO.setup(pin, GPIO.OUT) GPIO.output(pin, GPIO.LOW) for pin in self.digitalPins.itervalues(): GPIO.setup(pin, GPIO.IN) self.dutCurrent = ina219.INA219() #self.adc0 = Adafruit_ADS1x15.ADS1015(address=0x48) #self.adc0 = Adafruit_ADS1x15.ADS1015(address=0x48) #self.adc0 = ads1015.ADS1015(address=0x48) #self.adc1 = ads1015.ADS1015(address=0x49) GPIO.setup(self.usbPin, GPIO.OUT) GPIO.output(self.usbPin, GPIO.LOW) GPIO.setup(self.startButtonPin, GPIO.IN)
def __init__(self, name, addr, i2c_helper, config={}):
I2CSensor.__init__(self, name, i2c_helper)
max_current = float(config['max_current']) if 'max_current' in config else None
self.device = ina219.INA219(0.1, address=addr, max_expected_amps=max_current)
self.device.configure()
self.device.sleep()
self.readData()
def __init__(self, name, addr, i2c_helper, config={}): #pylint: disable=dangerous-default-value
I2CSensor.__init__(self, name, i2c_helper)
max_current = float(config['max_current']) if 'max_current' in config else None
self.device = ina219.INA219(0.1, address=addr, max_expected_amps=max_current,
busnum=i2c_helper.get_i2c_busnum())
self.device.configure()
self.device.sleep()
self.readData()
def __init__(self, _location, _w1_device_id_list):
self.location = _location
self.id = f'urn:dev:ops:{self.location}-vorraum-node'
self.name = f'{self.location}-node_functions'
self.w1_device_id_list = _w1_device_id_list
Thing.__init__(self, self.id, self.name, ['EnergyMonitor'],
'A web connected node')
self.ina219 = ina219.INA219(busnum=0, address=0x40)
self.power = Value(0.0)
self.add_property(
Property(self,
f'{self.name}-power',
self.power,
metadata={
'@type': 'InstantaneousPowerProperty',
'title': f'{self.name}-Power',
'type': 'float',
'multipleOf': 0.01,
'description': 'the power used by this node',
}))
self.volt = Value(0.0)
self.add_property(
Property(self,
f'{self.name}-voltage',
self.volt,
metadata={
'@type': 'VoltageProperty',
'title': f'{self.name}-Voltage',
'type': 'float',
'multipleOf': 0.01,
'description': 'the voltage used by this node',
}))
self.current = Value(0.0)
self.add_property(
Property(self,
f'{self.name}-current',
self.current,
metadata={
'@type': 'CurrentProperty',
'title': f'{self.name}-Current',
'type': 'float',
'multipleOf': 0.01,
'description': 'the current used by this node',
}))
self.temperature = Value(0.0)
self.add_property(
Property(self,
f'{self.name}-Temperature',
self.temperature,
metadata={
'@type': 'TemperatureProperty',
'title': f'{self.name}-Temperature',
'type': 'float',
'multipleOf': 0.01,
'description': 'the temperature in the case',
}))
self.timer = tornado.ioloop.PeriodicCallback(self.get_sensors, 300000)
self.timer.start()
def main():
ina = ina219.INA219(shunt_ohms=0.1, max_expected_amps=3, address=0x40)
ina.configure(voltage_range=ina.RANGE_16V,
gain=ina.GAIN_AUTO,
bus_adc=ina.ADC_128SAMP,
shunt_adc=ina.ADC_128SAMP)
return ina.current()
def main():
ina = ina219.INA219(SHUNT_RESISTANCE_OHMS, MAX_EXPECTED_CURRENT_AMPS)
ina.configure(
voltage_range = ina219.INA219.RANGE_32V,
bus_adc = ina219.INA219.ADC_16SAMP,
shunt_adc = ina219.INA219.ADC_16SAMP)
while True:
voltage, current, power, shuntVoltage = read(ina)
print("Voltage: %f V, Current: %f A, Power: %f W" % (voltage, current, power))
time.sleep(SLEEP_TIME_SEC)
def __init__(self, name, addr, i2c_bus, config={}):
super().__init__(name=name, i2c_addr=addr, i2c_bus=i2c_bus)
self.description = 'INA219'
max_current = float(
config['max_current']) if 'max_current' in config else None
self.device = ina219.INA219(0.1,
busnum=i2c_bus.id,
address=addr,
max_expected_amps=max_current)
self.device.configure()
self.device.sleep()
self._readData()
def __init__(self,
interval,
addr,
i2c_device_num,
calibrator=ina219.INA219_CALIB_32V_2A,
sample=1):
"""
Runs as a concurrent thread to read from an ina219 device attached to local i2c (SMBus).
:param interval: float in seconds. Read interval for ina219
:param addr: int - i2c bus address of ina219 device
:param i2c_device_num: int - bus number of i2c device ina219 is attached (e.g /dev/i2c-n where n
is i2c_device_num
:param number of samples to use for current measurement. See ina219.INA219 for details
"""
PowerMonitor.__init__(self)
self._meter = ina219.INA219(addr, i2c_device_num)
self._meter.setCalibration(calibrator, sample)
self._monitor = False
self._interval = interval
self._last_timestamp = None
import subprocess
results = {}
results['pass'] = 0
results['fail'] = 0
SHUNT_OHMS = 0.1
def read_power():
results = {}
results['voltage'] = ina.voltage()
results['current'] = ina.current()
return results
# Current sensor
ina = ina219.INA219(SHUNT_OHMS)
ina.configure()
# VTarget enable
vtarget_en = gpiozero.LED(13)
vtarget_en.off()
time.sleep(1)
# buffered UART
uart = serial.Serial("/dev/serial0", 115200, timeout=.2)
# Test that no voltage is present while off
val = read_power()
print(val)
if (val['voltage'] > .05):
# Micropython ID Matrix
# ======================
# I2C IDS: 0 1
# ---------------
# SCL GPIO: 18 25
# SDA GPIO: 19 26
# ---------------
NAME = "blueshunt"
I2C_ID = 1 # SCL: GPIO25, SDA: GPIO26
LED_GPIO = 2 # GPIO2 is wired to LED1 (blue)
RSHUNT = .1 # shunt resistor value
MAXVOLTS = 16
MAXAMPS = .1
pin = machine.Pin(LED_GPIO, machine.Pin.OUT) # initially zero (led off)
i2c = machine.I2C(I2C_ID)
ina = ina219.INA219(i2c, rshunt=RSHUNT, maxvolts=MAXVOLTS, maxamps=MAXAMPS)
ble = bluetooth.BLE()
blue = BLEUART(ble, NAME)
print("V,mA,mW")
while True:
pin.value(not pin.value())
buf = "{:.2f},{:.1f},{:.1f}".format(ina.bus_voltage(),
ina.current() * 1000,
ina.power() * 1000)
print(buf)
blue.write(buf)
time.sleep_ms(1000)
import ina219 # Modified ina219 driver
import usocket as socket
import ujson as json
import utime as time
start = time.ticks_ms() # Start measuring time delta
sensor = ina219.INA219(scl_pin=26, sda_pin=27) # Create sensor obj
energy = 0 # Initialise energy counter
def res():
""" Function to return REST API response """
data = {
"current(A)": current,
"voltage(V)": voltage,
"power(W)": power,
"totalEnergy(J)": energy,
}
return json.dumps(data)
# Store server address data
addr = socket.getaddrinfo('192.168.4.1', 80)[0][-1]
# Create websocket obj
sock = socket.socket()
# Set socket timeout
sock.settimeout(0.01)
# Bind to server
sock.bind(addr)
# Start listening
sock.listen(1)
