Cameteo/circuitpython/main.py

127 lines
4.0 KiB
Python

# Simple weather and GPS logger
import board
from busio import I2C, UART
from time import sleep
from analogio import AnalogIn
import microcontroller
import gc
import micropython
import os
from adafruit_bme280 import Adafruit_BME280_I2C
from adafruit_gps import GPS
import neopixel
#########
# Setup #
#########
# BME280 sensors (I2C)
i2c = I2C(board.SCL, board.SDA)
bme280 = Adafruit_BME280_I2C(i2c)
# Integrated Neopixel
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
# Battery voltage
vbat = AnalogIn(board.D9, )
# GPS on Feather board
gps_uart = UART(board.TX, board.RX, baudrate=9600, timeout=3000)
gps = GPS(gps_uart)
# Turn on the basic GGA and RMC info
gps.send_command('PMTK314,0,1,0,1,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0')
gps.send_command('PMTK220,2000') # 1000 ms refresh
gc.collect()
micropython.mem_info()
temp, hum, press = 0.0, 0.0, 0.0
rouge, vert, bleu = 0, 0, 0
# Check if data directory exists
if 'data' not in os.listdir():
os.mkdir('data')
os.mkdir('data/hourly')
os.mkdir('data/daily')
#############
# Main loop #
#############
while True:
sleep(5)
gc.collect()
# micropython.mem_info(1)
# print('Memory free: {} allocated: {}'.format(gc.mem_free(), gc.mem_alloc()))
temp = bme280.temperature
hum = bme280.humidity
press = bme280.pressure
print("Temperature: {:>+.1f} degC | Humidite: {:>.1f} % | Pression: {:>.1f} hPa".format(temp, hum, press))
print("Tension batterie : {:>.2f} V | CPU Temp: {:>+.1f} degC".format((vbat.value*2*3.3/65536), microcontroller.cpu.temperature))
# 0.00644531 = 2*3.3/1024 :
# 2 : voltage is divided by 2
# 3.3 : Vref = 3.3V
# 1024 : 10bit ADC
# Conversion des donn?es en couleur
# ROUGE => temp?rature : max = 35?C, min =10?C soit une amplitude de 25?C
rouge = int((temp-10)*255/25)
if rouge > 255:
rouge = 255
if rouge < 0:
rouge = 0
# BLEU => humidit? : max= 100%, mini=0%
bleu = int(hum*255/100)
# VERT => Pression : mini=960hPa, maxi = 1030hPa soit une amplitude 70hPa
vert = int((press-960)*255/70)
if vert > 255:
vert = 255
if vert < 0:
vert = 0
rvb = (rouge, vert, bleu)
print("Couleur : {}".format(rvb))
pixel[0] = rvb
gps.update()
if not gps.has_fix:
# Try again if we don't have a fix yet.
print('Waiting for fix... {} - {}'.format(gps.has_fix, gps.satellites))
continue
print('Fix timestamp: {}/{}/{} {:02}:{:02}:{:02}'.format(
gps.timestamp_utc.tm_mon, # Grab parts of the time from the
gps.timestamp_utc.tm_mday, # struct_time object that holds
gps.timestamp_utc.tm_year, # the fix time. Note you might
gps.timestamp_utc.tm_hour, # not get all data like year, day,
gps.timestamp_utc.tm_min, # month!
gps.timestamp_utc.tm_sec))
if gps.altitude_m is not None:
print('Latitude: {} deg | Longitude: {} deg | Altitude: {} m'.format(gps.latitude,
gps.longitude,
gps.altitude_m))
else:
print('Latitude: {} deg | Longitude: {} deg'.format(gps.latitude,
gps.longitude))
print('Fix quality: {}'.format(gps.fix_quality))
# Some attributes beyond latitude, longitude and timestamp are optional
# and might not be present. Check if they're None before trying to use!
if gps.satellites is not None:
print('# satellites: {}'.format(gps.satellites))
if gps.track_angle_deg is not None:
print('Speed: {} knots'.format(gps.speed_knots))
if gps.track_angle_deg is not None:
print('Track angle: {} degrees'.format(gps.track_angle_deg))
if gps.horizontal_dilution is not None:
print('Horizontal dilution: {}'.format(gps.horizontal_dilution))
if gps.height_geoid is not None:
print('Height geo ID: {} meters'.format(gps.height_geoid))