def creat_data():
u=driver.read_u()
if u:
pack = ts.A.collect('volalite', str('%.1f'%u))
DataCache.append(pack)
i=driver.read_i()
if i:
pack = ts.A.collect('current', str('%.1f'%i))
DataCache.append(pack)
p=driver.read_p()
if p:
pack = ts.A.collect('power', str('%.1f'%p))
DataCache.append(pack)
dht.measure()
t=dht.temperature()
h=dht.humidity()
if h:
pack = ts.A.collect('humi', str('%.1f'%h))
DataCache.append(pack)
if t:
pack = ts.A.collect('temp', str('%.1f'%t))
DataCache.append(pack)
if Relay.value():
pack = ts.A.collect('switch', str(1))
else:
pack = ts.A.collect('switch', str(0))
DataCache.append(pack)
def read_dht():
try:
dht.measure()
except Exception as e:
common.log('Failed to get DHT measurements: %s' % e)
return
common.publish(TEMPTOPIC, "%.2f" % dht.temperature())
common.publish(HUMTOPIC, "%.2f" % dht.humidity())
def make_response(sta_if, request_content):
try:
dht.measure()
dht_ready = True
except OSError:
dht_ready = False
values = {
'wifi': format_network_status(sta_if.ifconfig()),
't': '{:.2f}'.format(dht.temperature()) if dht_ready else 'error',
'h': '{:.2f}'.format(dht.humidity()) if dht_ready else 'error',
}
return PAGE_TEMPLATE.format(**values)
def measure(mqtt, dht):
# try:
dht.measure()
temp = dht.temperature()
humi = dht.humidity()
print("Temperature: %3.1f °C" % temp)
print(" Humidity: %3.2f %% RH" % humi)
json_data = {"location": "lala", "temperature": temp, "humidity": humi}
json_str = json.dumps(json_data)
mqtt.publish(MQTT_TOPIC_TEMP, str(temp))
mqtt.publish(MQTT_TOPIC_HUMI, str(humi))
def polldht(dht, ledpin=None):
"""Collect measurements from DHT and return in a dictionary.
If ledpin is specified, turn it on before measurement, and off after.
"""
if ledpin:
ledon(ledpin)
dht.measure()
results = {}
results['temp'] = dht.temperature()
results['humi'] = dht.humidity()
if ledpin:
ledoff(ledpin)
return results
import dht, time, machine
dht = dht.DHT11(machine.Pin(13))
while Thread[0]:
dht.measure()
print("temperature:", dht.temperature())
print("humidity:", dht.humidity()) #DHT22 can be read twice every second
time.sleep(1) #DHT11 can only be read once every second
# connecting to WiFi
wifi = network.WLAN(network.STA_IF)
wifi.active(True)
wifi.connect(wifi_ssid, wifi_pw)
while not wifi.isconnected():
pass
# get readings from DHT11 (connected to D5)
dht = dht.DHT11(machine.Pin(14))
dht.measure()
# Upload data via IFTTT
query_url = '{}?value1={}&value2={}&value3={}'.format(webhook_url,
'Temp(*C)/Humid(%)',
dht.temperature(),
dht.humidity())
response = None
try:
print('Upload data...')
response = urequests.get(query_url)
except:
pass
if not response == None and response.status_code == 200:
print('Upload successful')
# led flashing quickly
for _ in range(10):
led.value(1)
framebuf.text("Hello,", 0, 0, 1)
framebuf.text("World!", 0, 9, 1)
lcd.data(buffer)
sleep(5)
def elTime(sec):
m, s = divmod(seconds, 60)
h, m = divmod(m, 60)
return "%02d:%02d:%02d" % (h, m, s)
import dht
DHTPIN = Pin(2)
dht = dht.DHT22(DHTPIN)
# Update display
while (True):
dht.measure()
seconds = ticks_ms() / 1000
framebuf.fill(0)
framebuf.text(elTime(seconds), 0, 0, 1)
framebuf.text("%7d" % (ticks_ms() // 1000), 0, 11, 1)
#framebuf.text("Temp", 0, 11, 1)
framebuf.text("%.1f C" % dht.temperature(), 0, 20, 1)
framebuf.text("Humidity", 0, 31, 1)
framebuf.text("%.1f %%" % dht.humidity(), 0, 40, 1)
lcd.data(buffer)
sleep(1)
import utime, dht, ssd1306
# DHT11 sensor (Pin D5)
dht = dht.DHT11(Pin(14))
# SSD1306 OLED display (SCL: D1, SDA: D2)
display = ssd1306.SSD1306_I2C(128, 64, I2C(scl=Pin(5), sda=Pin(4)))
# template string for formatting
template_str = '\nTemperature:\n {} *C \n\nHumidity:\n {} % '
while True:
# get readings from DHT11
dht.measure()
# generate formatted string
output_str = template_str.format(dht.temperature(), dht.humidity())
# print output without \n (new line) character
print(output_str.replace('\n', ''))
# print output on oled
display.fill(0)
for index, line in enumerate(output_str.split('\n')):
display.text(line, 8, index * 8)
display.show()
# wait for 2 seconds
utime.sleep(2)
def read():
dht.measure()
value_hum = dht.humidity()
value_temp = dht.temperature()
read_output(value_hum)
return value_hum, value_temp