def __init__(self, ssid, password, mqtt_host, mqtt_root_topic, pin_soil_power, pin_pump, pin_scl, pin_sda, i2c_addr_bme280, event_periods, debug):
"""Setup the application"""
self._events = []
self.should_bail = False
self.debug = debug
self.event_periods = event_periods
# ensure network is up
do_network_connect(ssid, password)
# configure mqtt client
self.mqtt_root_topic = mqtt_root_topic
self.mqtt_client = MQTTClient("umqtt_client", mqtt_host)
self.mqtt_client.set_callback(self.mqtt_recieve)
self.mqtt_client.connect()
# configure output pins
self.pin_soil_power = machine.Pin(pin_soil_power, machine.Pin.OUT)
self.pin_pump = machine.Pin(pin_pump, machine.Pin.OUT)
# set up i2c bus and sensors
self.i2c = machine.I2C(scl=machine.Pin(pin_scl), sda=machine.Pin(pin_sda))
self.sensor_bme280 = bme280.BME280(i2c=self.i2c, address=i2c_addr_bme280)
self.sensor_si1145 = si1145.SI1145(i2c=self.i2c)
self.sensor_adc = ads1x15.ADS1015(self.i2c)
# topic to trigger event loop end
self.mqtt_client.subscribe(self.mqtt_make_topic("halt"))
self.mqtt_client.subscribe(self.mqtt_make_topic("water_plant"))
# fire off initial events. These are self submitting so each one
# will submit the next job to the event queue.
self.event_update_ntp(utime.time())
current_time = utime.time()
self.event_temperature(current_time)
self.event_light(current_time)
self.event_soil_moisture(current_time)
self.schedule_pump_on(current_time)
import ads1x15
from machine import I2C, Pin
i2c = I2C(scl=Pin(5), sda=Pin(4))
ads = ads1x15.ADS1015(i2c=i2c)
while True:
print(ads.read(0), ads.read(1))
from array import array
import time
addr = 72
gain = 1
_BUFFERSIZE = const(512)
data = array("h", (0 for _ in range(_BUFFERSIZE)))
timestamp = array("L", (0 for _ in range(_BUFFERSIZE)))
#i2c = I2C(scl=Pin(5), sda=Pin(4), freq=400000)
i2c = I2C(-1, Pin(14), Pin(2),freq=400000)
# for the Pycom branch, use:
# i2c = I2C()
ads = ads1x15.ADS1015(i2c, addr, gain)
while True:
value = ads.read()
volts = ads.raw_to_v(value)
print(value,volts)
time.sleep(1)
#
# Interrupt service routine for data acquisition
# called by a timer interrupt
#
""" def sample(x, adc = ads.alert_read, data=data, timestamp = timestamp):
pin_s2 = machine.Pin(5, machine.Pin.OUT)
pin_s3 = machine.Pin(17, machine.Pin.OUT)
muxer = hp4067.HP4067(pin_en, pin_s0, pin_s1, pin_s2, pin_s3)
muxer.enable()
muxer.set_channel(0)
# ADC Setup
ads_address = 72
adc_gain = 0
adc_rate = 6
pin_scl = machine.Pin(22)
pin_sda = machine.Pin(23)
i2c = machine.I2C(sda=pin_sda, scl=pin_scl, freq=400000)
adc = ads1x15.ADS1015(i2c, ads_address, adc_gain)
# Functions
def voltage_shunt():
return adc.raw_to_v(adc.read(get_adc_rate(), 0))
def total_current(v_shunt):
return v_shunt / R_mux[muxer.get_channel()]
def voltage_sensor(v_shunt):
total_voltage = get_total_voltage()
return total_voltage - v_shunt