4.- Raspberry Pi sends data to App.
p9B3i_recibir_RaspBerry.aia (2.6 KB)
- Phyton2. Script : bluetooth5.py
import time
import datetime
import bluetooth
server_sock=bluetooth.BluetoothSocket(bluetooth.RFCOMM)
port = 22
server_sock.bind(("",port))
server_sock.listen(1)
client_sock,address = server_sock.accept()
print ("Conexion realizada con: ", address)
# Create class that acts as a countdown
def countdown(h, m, s):
# Calculate the total number of seconds
total_seconds = h * 3600 + m * 60 + s
# While loop that checks if total_seconds reaches zero
# If not zero, decrement total time by one second
while total_seconds > 0:
# Timer represents time left on countdown
timer = datetime.timedelta(seconds = total_seconds)
# Prints the time left on the timer
print(timer)
client_sock.send(str(timer))
client_sock.send("\n")
# Delays the program one second
time.sleep(1)
# Reduces total time by one second
total_seconds -= 1
print("Bzzzt! The countdown is at zero seconds!")
# Inputs for hours, minutes, seconds on timer
h = 0 #input("Enter the time in hours: ")
m = 4 #input("Enter the time in minutes: ")
s = 0 #input("Enter the time in seconds: ")
countdown(int(h), int(m), int(s))
- To run.
- First run the script with Python2
python2 bluetooth5.py
- Then Click the "Inicio - Start" button in the app.
[The countdown script is based on this code:
Create a Timer in Python: Step-by-Step Guide | Udacity]