Add GPS2.py
This commit is contained in:
parent
7923e98a22
commit
4cdd89a0fc
75
GPS2.py
Normal file
75
GPS2.py
Normal file
@ -0,0 +1,75 @@
|
||||
#!/usr/bin/python
|
||||
# -*- coding:utf-8 -*-
|
||||
import RPi.GPIO as GPIO
|
||||
import sqlite3
|
||||
import serial
|
||||
import time, os
|
||||
|
||||
# SQLite Database settings
|
||||
db_file = "gps_coordinates.db"
|
||||
conn = sqlite3.connect(db_file)
|
||||
cursor = conn.cursor()
|
||||
|
||||
ser = serial.Serial('/dev/ttyS0',115200)
|
||||
ser.flushInput()
|
||||
|
||||
def send_at(command,back,timeout):
|
||||
rec_buff = ''
|
||||
ser.write((command+'\r\n').encode())
|
||||
time.sleep(timeout)
|
||||
if ser.inWaiting():
|
||||
time.sleep(0.01 )
|
||||
rec_buff = ser.read(ser.inWaiting())
|
||||
if rec_buff != '':
|
||||
if back not in rec_buff.decode():
|
||||
print(command + ' ERROR')
|
||||
print(command + ' back:\t' + rec_buff.decode())
|
||||
return 0
|
||||
else:
|
||||
print(rec_buff.decode())
|
||||
return 1
|
||||
else:
|
||||
print('GPS is not ready')
|
||||
return 0
|
||||
|
||||
def get_gps_position():
|
||||
rec_null = True
|
||||
answer = 0
|
||||
print('Iniciando GPS')
|
||||
rec_buff = ''
|
||||
send_at('AT+CGPS=1,1','OK',1)
|
||||
time.sleep(2)
|
||||
while rec_null:
|
||||
answer = send_at('AT+CGPSINFO','+CGPSINFO: ',1)
|
||||
if 1 == answer:
|
||||
answer = 0
|
||||
if ',,,,,,' not in rec_buff:
|
||||
# Extract GPS information from rec_buff and store it in the database
|
||||
gps_info = extract_gps_info(rec_buff) # Implement this function based on the format of rec_buff
|
||||
store_gps_coordinates(gps_info)
|
||||
return True
|
||||
else:
|
||||
print('GPS is not ready')
|
||||
time.sleep(1)
|
||||
else:
|
||||
print('error %d' % answer)
|
||||
rec_buff = ''
|
||||
send_at('AT+CGPS=0','OK',1)
|
||||
return False
|
||||
time.sleep(1.5)
|
||||
|
||||
def extract_gps_info(rec_buff):
|
||||
# Implement this function based on the format of rec_buff
|
||||
# Example: gps_info = rec_buff.split(',')[2]
|
||||
return gps_info
|
||||
|
||||
def store_gps_coordinates(gps_info):
|
||||
cursor.execute("INSERT INTO coordinates (latitude, longitude) VALUES (?, ?)", gps_info)
|
||||
conn.commit()
|
||||
|
||||
# Main program
|
||||
if __name__ == '__main__':
|
||||
# Create the SQLite table if it doesn't exist
|
||||
cursor.execute('''CREATE TABLE IF NOT EXISTS coordinates (id INTEGER PRIMARY KEY AUTOINCREMENT, latitude REAL, longitude REAL)''')
|
||||
while True:
|
||||
get_gps_position()
|
Loading…
Reference in New Issue
Block a user