def Temp_humid():
sensor = scd30.SCD30(PIGPIO_HOST, I2C_SLAVE, I2C_BUS)
# trigger continous measurement
sensor.sendCommand(scd30.COMMAND_CONTINUOUS_MEASUREMENT, 970)
# enable autocalibration
sensor.sendCommand(scd30.COMMAND_AUTOMATIC_SELF_CALIBRATION, 1)
sensor.waitForDataReady()
try:
# read measurement
data = sensor.readMeasurement()
if (data == False):
exit(1)
[float_co2, float_T, float_rH] = data
if float_co2 > 0.0:
print("gas_ppm{sensor=\"SCD30\",gas=\"CO2\"} %f" % float_co2)
print("temperature_degC{sensor=\"SCD30\"} %f" % float_T)
if float_rH > 0.0:
print("humidity_rel_percent{sensor=\"SCD30\"} %f" % float_rH)
except OSError:
sensor.close()
pass
#!/usr/bin/env python3
# coding=utf-8
import sys
import time
import scd30
PIGPIO_HOST = '::1'
I2C_SLAVE = 0x61
I2C_BUS = 1
sensor = scd30.SCD30(PIGPIO_HOST, I2C_SLAVE, I2C_BUS)
# trigger continous measurement
sensor.sendCommand(scd30.COMMAND_CONTINUOUS_MEASUREMENT, 970)
# enable autocalibration
sensor.sendCommand(scd30.COMMAND_AUTOMATIC_SELF_CALIBRATION, 1)
sensor.waitForDataReady()
try:
while True:
# read measurement
data = sensor.readMeasurement()
if (data == False):
exit(1)
[float_co2, float_T, float_rH] = data
#!/usr/bin/python
import scd30
import socket
import time
from statistics import mean
address = '192.168.2.91'
port = 8001
sensor_path = '/dev/serial/by-path/platform-fd500000.pcie-pci-0000:01:00.0-usb-0:1.3:1.0-port0'
sensor = scd30.SCD30(sensor_path)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
interval = 2
# number of averages for boxcar
N = 4
co2_list = [0] * N
temp_list = [0] * N
hum_list = [0] * N
i = 0
buffer_full = False
if (intv_is := sensor.measurement_interval) != interval:
print(f'measurement interval was {intv_is}s, setting to {interval}')
sensor.measurement_interval = interval
while True:
while not sensor.get_ready():
time.sleep(0.5)
co2, temp, hum = sensor.read()
import mqtt
import network
import timer
import time
import machine
import ubinascii
import bme280
import scd30
import max7219
UID = ubinascii.hexlify(machine.unique_id()).decode()
I2C = machine.I2C(sda=machine.Pin(21), scl=machine.Pin(22))
BME = bme280.BME280(i2c=I2C)
SCD = scd30.SCD30(I2C)
LED = max7219.max7219()
LED.set_intensity(max7219.INTENSITY_15)
field = 0
def init_wifi():
nic = network.WLAN(network.STA_IF)
nic.active(True)
nic.connect("CCCAC_OPEN_2.4GHz", None)
while not nic.isconnected():
time.sleep_ms(100)
print("WIFI connection established")
def init_mqtt(mqtt):
mqtt.connect()
#!/usr/bin/python
import struct
# regs = [0x43DB, 0x8c2e, 0x41d9, 0xe7ff, 0x4243, 0x3a1b]
# regs_bin = struct.pack('>6H', *regs)
# print(struct.unpack('>3f', regs_bin))
import scd30
sensor = scd30.SCD30('/dev/ttyUSB0')
print(sensor.read())