async def main(client):
# Called once on startup
await client.connect()
#await ntp()
# any ADC pin 32-39 should work
adc = machine.ADC(machine.Pin(36))
adc.atten(machine.ADC.ATTN_11DB) # 0V to 3.3V range
adc.width(machine.ADC.WIDTH_10BIT) # 0 to 1023 bits read
# Turn OFF blue led
# ON Full means Wifi is DISCONNECTED
# ON Weak means device has crashed
blue_led(0)
# Main loop that publishes to broker
print("Monitoring water level...")
while True:
await asyncio.sleep(2)
timestamp = str(utime.time())
current_raw_adc = adc.read()
current_inches = conversion(current_raw_adc)
#key_store.set(timestamp, str(current_water_level))
# If WiFi is down the following will pause for the duration.
#await client.publish('devices/' + config['client_id'].decode('utf-8') + '/water/timestamp', timestamp, qos = 1)
await client.publish('devices/' + config['client_id'].decode('utf-8') +
'/water/raw_adc',
str(current_raw_adc),
qos=1)
await client.publish('devices/' + config['client_id'].decode('utf-8') +
'/water/inches',
str(current_inches),
qos=1)
async def main(client):
# Called once on startup
await client.connect()
await ntp()
# 2.5V Input Pin (any GPIO pin should work)
pin = Pin(37, Pin.IN)
# Initialize variables (assume power is currently on)
current_power_status = 1
last_power_status = 1
counter = 0
# Turn OFF blue led
# ON Full means Wifi is DISCONNECTED
# ON Weak means device has crashed
blue_led(0)
# Main loop that publishes to broker
print("Monitoring Power...")
while True:
await asyncio.sleep_ms(100)
current_power_status = pin.value()
# Local timestamps when power fails and is restored
if current_power_status != last_power_status:
timestamp = str(utime.time())
key_store.set(timestamp, str(current_power_status))
last_power_status = current_power_status
# MQTT pings every 2 seconds of current power status
if counter >= 2000: # elapsed milliseconds
# If WiFi is down the following will pause for the duration.
await client.publish('devices/' +
config['client_id'].decode('utf-8') +
'/power/value',
str(current_power_status),
qos=1)
counter = 0
else:
counter += 100 # Since we are waiting 100ms in asyncio.sleep_ms(100)
async def wifi_handler(state):
blue_led(not state)
await asyncio.sleep(1)