Update from simple test script to more complete script

This commit is contained in:
Pierrick C 2018-07-29 13:02:16 +02:00
parent 71310249c3
commit db92dbe984

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@ -1,126 +1,229 @@
# Simple weather and GPS logger
# Weather and GPS logger
import board
##########
# Config #
##########
print_data = True
data_to_neopixel = True
gps_enable = False
update_interval = 5.0 # in seconds
send_json_data = True
#######################
import board, time, microcontroller
import gc, micropython, os
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 #
#########
###########
# Classes #
###########
# BME280 sensors (I2C)
i2c = I2C(board.SCL, board.SDA)
bme280 = Adafruit_BME280_I2C(i2c)
class Data:
"""Class for handling data format and transmission"""
def __init__(self):
self.data = {}
# Integrated Neopixel
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
def update(self):
"""Read the data from various sensors and update the data dict variable"""
#Data from Feather board
self.data['SYS'] = {'v_bat': { 'val': vbat.value*0.000100708, 'unit': 'V' },
'CPU_temp': { 'val': microcontroller.cpu.temperature, 'unit': '°C' }}
# Note about v_bat calculation :
# 0.000100708 = 2*3.3/65536 with
# 2 : voltage is divided by 2
# 3.3 : Vref = 3.3V
# 65536 : 16bit ADC
# Battery voltage
vbat = AnalogIn(board.D9, )
#Data from BME280
self.data['BME280'] = {'temp': { 'val': bme280.temperature, 'unit': '°C' },
'hum': { 'val': bme280.humidity, 'unit': '%' },
'press': { 'val': bme280.pressure, 'unit': 'hPa' }}
if gps_enable:
if gps.has_fix:
self.data['GPS'] = {'timestamp': '{:04}/{:02}/{:02} {:02}:{:02}:{:02}'.format(gps.timestamp_utc.tm_year,
gps.timestamp_utc.tm_mon,
gps.timestamp_utc.tm_mday,
gps.timestamp_utc.tm_hour,
gps.timestamp_utc.tm_min,
gps.timestamp_utc.tm_sec),
'lat': {'val': gps.latitude, 'unit': 'deg'},
'lon': {'val': gps.longitude, 'unit': 'deg'},
'alt': {'val': gps.altitude_m, 'unit': 'm'},
'qual': {'val': gps.fix_quality, 'unit': None}}
else:
self.data['GPS'] = {'lat': {'val': None, 'unit': 'deg'},
'lon': {'val': None, 'unit': 'deg'},
'alt': {'val': None, 'unit': 'm'}}
else:
self.data['GPS'] = None
# 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
def show(self):
"""Serialize data to json-formatted string for
visualization on serial console
"""
for source in self.data.keys():
print(source + ": ")
if not self.data[source] == None:
for d in self.data[source].items():
print("\t{0}: {val} {unit}".format(d[0], **d[1]))
gc.collect()
micropython.mem_info()
def json(self):
"""Serialize data to json-formatted string"""
output = "{"
for source in self.data.keys():
output = "".join((output, "'", source, "': \n"))
if not self.data[source] == None:
for d in self.data[source].items():
output = "".join((output, "{",
"'{}': ".format(d[0]),
"{",
"'val': {val},'unit': {unit}".format(**d[1]),
"}}\n"))
output = output + "}, \n"
output = output + "}"
return output
temp, hum, press = 0.0, 0.0, 0.0
rouge, vert, bleu = 0, 0, 0
#############
# Functions #
#############
# Check if data directory exists
def check_data_dir():
"""Check if data directories exists"""
if 'data' not in os.listdir():
os.mkdir('data')
os.mkdir('data/hourly')
os.mkdir('data/daily')
elif 'hourly' not in os.listdir('data'):
os.mkdir('data/hourly')
elif 'daily' not in os.listdir('data'):
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()
def update_gps():
"""Update and print data from GPS module"""
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(
else: # GPS fix OK !!!
#UTC Time
print('{}/{}/{} {: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,
print('Lat: {}deg | Lon: {}deg | Alt: {}m'.format(gps.latitude,
gps.longitude,
gps.altitude_m))
else:
print('Latitude: {} deg | Longitude: {} deg'.format(gps.latitude,
print('Lat: {}deg | Lon: {}deg'.format(gps.latitude,
gps.longitude))
print('Fix quality: {}'.format(gps.fix_quality))
print('Qual: {}'.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))
# if gps.satellites is not None:
# print('# sat: {}'.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))
def update_neopixel(data):
"""Conversion des données en couleur pour affichage sur NeoPixel
* ROUGE => temp?rature : max = 35?C, min =10?C soit une amplitude de 25?C
* BLEU => humidit? : max= 100%, mini=0%
* VERT => Pression : mini=960hPa, maxi = 1030hPa soit une amplitude 70hPa
"""
rouge = int((data['BME280']['temp']['val']-10)*255/25)
if rouge > 255:
rouge = 255
if rouge < 0:
rouge = 0
bleu = int(data['BME280']['hum']['val']*255/100)
vert = int((data['BME280']['press']['val']-960)*255/70)
if vert > 255:
vert = 255
if vert < 0:
vert = 0
if print_data:
print("Col:{}".format((rouge, vert, bleu)))
return (rouge, vert, bleu)
#########
# Setup #
#########
gc.collect()
micropython.mem_info()
# BME280 sensors (I2C)
i2c = I2C(board.SCL, board.SDA)
# i2c addresses for BME280 breakout :
# 0x77 = adafruit board
# 0x76 = chinese board
bme280 = Adafruit_BME280_I2C(i2c, address=0x76)
# Battery voltage
vbat = AnalogIn(board.D9, )
# GPS on FeatherWing board
if gps_enable:
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('PMTK220,1000') # 1000 ms refresh rate
# Integrated Neopixel
if data_to_neopixel:
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
else:
#if neopixel is disable : turn off the LED
pixel = neopixel.NeoPixel(board.NEOPIXEL, 1, brightness=0.2)
pixel[0] = (0,0,0)
pixel = None
check_data_dir()
#############
# Main loop #
#############
data = Data()
last_update = time.monotonic()
while True:
if gps_enable:
gps.update()
current = time.monotonic()
if current - last_update >= update_interval:
last_update = current
data.update()
if print_data:
data.show()
# print(data.json())
if data_to_neopixel:
pixel[0] = update_neopixel(data.data)
gc.collect()
# micropython.mem_info(1)
# print('Memory free: {} allocated: {}'.format(gc.mem_free(), gc.mem_alloc()))