forked from kadena-io/raspberrypi-blockchain
-
Notifications
You must be signed in to change notification settings - Fork 0
/
logsensordata.py
69 lines (52 loc) · 1.53 KB
/
logsensordata.py
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
import sys
import time
from pprint import pprint
from datetime import datetime
import Adafruit_DHT
from pypact import api
from pypact.adapters import BasePactAdapter
sample_freq = 5 # 20 minutes in seconds
sensor = Adafruit_DHT.DHT22
pin = 16
def format_current_time():
return datetime.now().strftime("%Y-%m-%dT%H:%M:%SZ")
def read_sensor_data():
"""Read humidity and temperature from the sensor and returns it"""
humidity, temp = Adafruit_DHT.read_retry(sensor, pin)
if temp and humidity:
return temp, humidity
return "Failed to read sensor data!"
def send_sensor_data(temp, humidity):
"""Sends data to pact server to be saved on blockchain"""
code = BasePactAdapter.build_code(
"raspberrypi",
"update-temp-humidity",
"admin-keyset",
**{"temp": temp, "humidity": humidity,
"keyset_name": "admin-keyset",
"time": format_current_time()}
)
print(code)
result = api.send_and_listen(code, "admin-keyset")
print(result)
def print_log():
code = BasePactAdapter.build_code(
"raspberrypi",
"logs",
"admin-keyset"
)
print(code)
result = api.send_and_listen(code, "admin-keyset")
pprint(result, indent=2)
def main():
while True:
temp, humidity = read_sensor_data()
send_sensor_data(temp, humidity)
time.sleep(sample_freq)
if __name__ == "__main__":
try:
print_log()
main()
except KeyboardInterrupt:
print("\n", "Stopping script...")
sys.exit()