Antonio Lignan
Published © GPL3+

DIY amateur Weather Station over 6LoWPAN/IPv6

Build a simple and low-power wireless weather station over 6LoWPAN and IPv6, with Zolertia RE-Mote, Ubidots and wunderground

IntermediateFull instructions provided5,455
DIY amateur Weather Station over 6LoWPAN/IPv6

Things used in this project

Hardware components

Raspberry Pi 2 Model B
Raspberry Pi 2 Model B
×1
SparkFun Weather Shield
SparkFun Weather Shield
I have not looked at it in detail, but it should work OK at least to interface the Weather Meter (anemometer, wind vane, rain gauge), do your own hacking and drivers as required!
×1
SparkFun Weather Meter
×1
Zolertia RE-Mote platform
Zolertia RE-Mote platform
×1

Software apps and online services

Ubidots
Ubidots
Weather Underground wunderground

Story

Read more

Schematics

Zolertia RE-Mote revision A schematics

Weather Meter datasheet

From Sparkfun

Code

UDP-Server.py

Python
#! /usr/bin/env python

#------------------------------------------------------------#
# UDP example to forward data from a local IPv6 network
# Antonio Lignan <antonio.lignan@gmail.com>
#------------------------------------------------------------#
from __future__ import division

import sys
import json
import datetime
from socket import*
from socket import error
from time import sleep
import struct
from ctypes import *
import requests
#------------------------------------------------------------#
PORT              = 5678
CMD_PORT          = 8765
BUFSIZE           = 1024
#------------------------------------------------------------#
URL_PWS_REF       = "http://api.wunderground.com/api/xxx/conditions/q/pws:ICERDANY6.json"
#------------------------------------------------------------#
WITH_UBIDOTS      = 1

if WITH_UBIDOTS:
  from ubidots import ApiClient
  UBIDOTS_API       = "xxx"
  UBI_COUNTER       = "xxx"
  UBI_TEMP          = "xxx"
  UBI_HUM           = "xxx"
  UBI_PRES          = "xxx"
  UBI_WIND_SP       = "xxx"
  UBI_WIND_SP_AVG   = "xxx"
  UBI_WIND_SP_INT   = "xxx"
  UBI_WIND_SP_MAX   = "xxx"
  UBI_WIND_DIR      = "xxx"
  UBI_WIND_DIR_INT  = "xxx"
  UBI_RAIN          = "xxx"

  UBI_ICERDANY6_TEMP = "xxx"
  UBI_ICERDANY6_HUM  = "xxx"
  UBI_ICERDANY6_PRES = "xxx"
#------------------------------------------------------------#
# Message structure
#------------------------------------------------------------#
class WEATHER(Structure):
    _pack_   = 1
    _fields_ = [
                 ("counter",                    c_uint16),
                 ("temperature",                c_uint16),
                 ("humidity",                   c_uint16),
                 ("atmospheric_pressure",       c_uint16),
                 ("wind_speed",                 c_uint16),
                 ("wind_dir",                   c_uint16),
                 ("rain_mm",                    c_uint16),
                 ("wind_dir_avg_int",           c_uint16),
                 ("wind_speed_avg",             c_uint16),
                 ("wind_speed_avg_int",         c_uint16),
                 ("wind_speed_max",             c_uint16),
               ]

    def __new__(self, socket_buffer):
        return self.from_buffer_copy(socket_buffer)

    def __init__(self, socket_buffer):
        pass
#------------------------------------------------------------#
# Helper functions
#------------------------------------------------------------#
def print_recv_data(msg):
  print "***"
  for f_name, f_type in msg._fields_:
    print "{0}:{1}".format(f_name, getattr(msg, f_name))
  print
  print "***"
  
# -----------------------------------------------------------#
# UDP6 server
#------------------------------------------------------------#
def start_server():
  now = datetime.datetime.now()
  print "UDP6 server side application - " + str(now)
  try:
    s = socket(AF_INET6, SOCK_DGRAM)
    s.setsockopt(SOL_SOCKET, SO_REUSEADDR, 1)

    # Replace address below with "aaaa::1" if tunslip6 has
    # created a tun0 interface with this address
    s.bind(('', PORT))

  except Exception:
    print "ERROR: Server Port Binding Failed"
    return
  print 'UDP server ready: %s'% PORT
  print

  # Use Ubidots for testing the deployment
  if WITH_UBIDOTS:
    try:
      ubidots = ApiClient(UBIDOTS_API)
    except Exception:
      print "ERROR: Failed to retrieve credentials"
      return

  while True:
    data, addr = s.recvfrom(BUFSIZE)
    now = datetime.datetime.now()
    print str(now)[:19] + " -> " + str(addr[0]) + ":" + str(addr[1]) + " " + str(len(data))

    ws = WEATHER(data)
    # print_recv_data(ws)

    # Read reference data from PWS nearby (ICERDANY6)
    pws = requests.get(URL_PWS_REF).json()
    pws_temp  = float(pws['current_observation']['temp_c'])
    pws_hum   = float(pws['current_observation']['relative_humidity'][:-1])
    pws_pres  = float(pws['current_observation']['pressure_mb'])

    if WITH_UBIDOTS:
      ubidots.save_collection([
         { "variable" : UBI_COUNTER, "value" : ws.counter },
         { "variable" : UBI_TEMP, "value" : ws.temperature / 100 },
         { "variable" : UBI_HUM, "value" : ws.humidity / 100 },
         { "variable" : UBI_PRES, "value" : ws.atmospheric_pressure / 10 },
         { "variable" : UBI_RAIN, "value" : ws.rain_mm * 0.2794 },
         { "variable" : UBI_WIND_DIR, "value" : ws.wind_dir / 10 },
         { "variable" : UBI_WIND_DIR_INT, "value" : ws.wind_dir_avg_int / 10 },
         { "variable" : UBI_WIND_SP, "value" : ws.wind_speed },
         { "variable" : UBI_WIND_SP_AVG, "value" : ws.wind_speed_avg },
         { "variable" : UBI_WIND_SP_INT, "value" : ws.wind_speed_avg_int },
         { "variable" : UBI_WIND_SP_MAX, "value" : ws.wind_speed_max },
         # Reference values using a PWS accross the street
         { "variable" : UBI_ICERDANY6_TEMP, "value" : pws_temp },
         { "variable" : UBI_ICERDANY6_HUM, "value" : pws_hum },
         { "variable" : UBI_ICERDANY6_PRES, "value" : pws_pres },
       ])

#------------------------------------------------------------#
# MAIN APP
#------------------------------------------------------------#
if __name__ == "__main__":
  start_server()

udp-client.bin

C/C++
Pre-compiled weather station application running over UDP/IPv6
No preview (download only).

Weather Station (Contiki branch)

Weather Station source code (based on Contiki and Zolertia RE-Mote HW platform)

Credits

Antonio Lignan

Antonio Lignan

14 projects • 56 followers
Maker, R+D engineer

Comments

Related channels and tags
  • Internet of Things
  • Raspberry Pi
  • SparkFun
  • Ubidots
  • Weather
  • Weather Underground