For this project I used a:
- Raspberry Pi 2
- CRS 4.0 Bleutooth adapter
- Edimax Wifi adapter
I used the built-in http-server in Python 3 and the ruuvitag_sensor package.
Use PuTTy to connect to the RPI2
Software installation:
Update/upgrade
sudo apt-get update
sudo apt-get upgrade
Bluetooth
sudo apt-get install bluetooth bluez blueman bluez-hcidump
Python3
sudo apt-get install python3 python3-pip
Ruuvitag-sensor package
pip3 install --user ruuvitag-sensor
Test the installation
python3 /home/pi/.local/lib/python3.4/site-packages/ruuvitag_sensor -f
Finding RuuviTags. Stop with Ctrl+C.
Start receiving broadcasts
F7:B9:07:F5:93:0C
{'temperature': 22.0, 'humidity': 32.0, 'pressure': 1031.0}
Ctrl+C
Make a note of the MAC-address
Make the sensor.py script
cd ~
mkdir ruuvi
cd ruuvi
nano sensor.py
Change the MAC-address in the code to your own MAC-address!
Source
import http.server
import socketserver
import io
import json
import sys
import errno
import datetime
from time import sleep
from ruuvitag_sensor.ruuvi import RuuviTagSensor
# globals
sensor = None
macAddr = 'F7:B9:07:F5:93:0C'
class Handler(http.server.SimpleHTTPRequestHandler):
def do_GET(self):
try:
# globals
global sensor
global macAddr
# send response status code
self.send_response(200)
# send headers
self.send_header('Content-type','text/html')
self.end_headers()
# update state from the device
state = sensor.update()
# get latest state (does not get it from the device)
state = sensor.state
# convert json to string
dump = json.dumps(state)
data = json.loads(dump)
print("Data:" + str(data))
# get data, format:
# {'humidity': 32.0, 'temperature': 21.0, 'pressure': 1031.0}
temp = int(data['temperature'])
humi = int(data['humidity'])
pres = int(data['pressure'])
# get current date and time
now = datetime.datetime.now()
# build html message for client
message = "<style>body { background-color: AliceBlue; } "
message += "table, th, td { border: 1px solid black; border-collapse: collapse; } "
message += "th, td { padding: 10px; color: white; background-color: DarkTurquoise; font-size: 18pt; } "
message += "h2 { color: DodgerBlue; font-size: 32pt; } "
message += "p { color: MediumSlateBlue; font-size: 10pt; }</style>"
message += "<h2>Weatherstation</h2><table>"
message += "<tr><td>Temperature</td><td>" + str(temp) + "°C</td></tr>"
message += "<tr><td>Humidity</td><td>" + str(humi) + "%</td></tr>"
message += "<tr><td>Pressure</td><td>" + str(pres) + " hPa</td></tr></table>"
message += "<p></p><p>Last update: " + now.strftime("%Y-%m-%d %H:%M:%S") + "</p>"
message += "<p>Powered by RuuviTag [" + macAddr + "]</p>"
# write content as utf-8 data
self.wfile.write(bytes(message, "utf8"))
except IOError as e:
# catch pipe error
if e.errno == errno.EPIPE:
print("Pipe Error")
return
# ready
return
def run():
# start server
global sensor
global macAddr
# locals
portNr = 8080
sleepTime = 2.5
# get beacon
print('Connect to RuuviTag Beacon ' + macAddr)
sensor = RuuviTagSensor(macAddr)
# give it some time...
sleep(sleepTime)
# start server
httpd = socketserver.TCPServer(('', portNr), Handler)
# give it some time...
sleep(sleepTime)
# endless serve
print('Server listening on port ' + str(portNr) + '...')
httpd.serve_forever()
# run
run()
Test
python3 sensor.py
Connect to RuuviTag Beacon F7:B9:07:F5:93:0C
Server listening on port 8080...
Start a browser (like Chrome)
IP-address is your Wifi address and portnumber 8080
(use ifconfig to find wlan0 ip-addres if not known)
In this example: 192.168.0.78:8080
