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2024-07-12 -

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This commit is contained in:
Adolfo Delorenzo 2024-07-12 19:12:14 -06:00
parent 8a13ea9ab6
commit 56e736caba
2 changed files with 202 additions and 56 deletions
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98
GPS2.py
View File

@ -1,18 +1,24 @@
#!/usr/bin/python
# -*- coding:utf-8 -*-
import RPi.GPIO as GPIO
import sqlite3
import paho.mqtt.client as mqtt
import serial
import time, os
# SQLite Database settings
db_file = "gps_coordinates.db"
conn = sqlite3.connect(db_file)
cursor = conn.cursor()
# MQTT Broker settings
mqttBroker ="65.108.199.212"
myhost = os.uname()[1]
client = mqtt.Client(myhost)
client.connect(mqttBroker, 1883)
ser = serial.Serial('/dev/ttyS0',115200)
ser.flushInput()
rec_buff = ''
rec_buff2 = ''
time_count = 0
def send_at(command,back,timeout):
rec_buff = ''
ser.write((command+'\r\n').encode())
@ -29,7 +35,7 @@ def send_at(command,back,timeout):
print(rec_buff.decode())
return 1
else:
print('GPS is not ready')
print('GPS no está listo')
return 0
def get_gps_position():
@ -48,22 +54,13 @@ def get_gps_position():
rec_null = False
time.sleep(1)
else:
# Extract GPS coordinates from the response
gps_data = rec_buff.split(',')
latitude = gps_data[2]
longitude = gps_data[3]
# Connect to the SQLite database
conn = sqlite3.connect('gps_coordinates.db')
c = conn.cursor()
# Insert the GPS coordinates into the database
c.execute("INSERT INTO gps_coordinates (latitude, longitude) VALUES (?, ?)", (latitude, longitude))
# Commit and close the connection
conn.commit()
conn.close()
# Parse GPS data
gps_data = rec_buff.decode().split('+CGPSINFO: ')[1].strip()
lat, lon = parse_gps_data(gps_data)
if lat and lon:
# Send GPS coordinates to MQTT broker
mqtt_payload = f"{lat},{lon}"
client.publish("iiot/"+ myhost +"/gps", mqtt_payload)
else:
print('error %d'%answer)
rec_buff = ''
@ -71,20 +68,51 @@ def get_gps_position():
return False
time.sleep(1.5)
return True
def parse_gps_data(gps_data):
parts = gps_data.split(',')
if len(parts) >= 4:
lat = convert_to_degrees(parts[0])
lon = convert_to_degrees(parts[2])
return lat, lon
return None, None
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 convert_to_degrees(raw_value):
if raw_value:
degree = float(raw_value[:2])
minute = float(raw_value[2:])
return degree + (minute / 60.0)
return None
def store_gps_coordinates(gps_info):
cursor.execute("INSERT INTO coordinates (latitude, longitude) VALUES (?, ?)", gps_info)
conn.commit()
def power_on(power_key):
print('SIM7600X is starting:')
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(power_key,GPIO.OUT)
time.sleep(0.1)
GPIO.output(power_key,GPIO.HIGH)
time.sleep(2)
GPIO.output(power_key,GPIO.LOW)
time.sleep(20)
ser.flushInput()
print('SIM7600X is ready')
# 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:
def power_down(power_key):
print('SIM7600X is loging off:')
GPIO.output(power_key,GPIO.HIGH)
time.sleep(3)
GPIO.output(power_key,GPIO.LOW)
time.sleep(18)
print('Good bye')
try:
#power_on(power_key)
get_gps_position()
#power_down(power_key)
except:
if ser != None:
ser.close()
#power_down(power_key)
GPIO.cleanup()
if ser != None:
ser.close()
GPIO.cleanup()

118
GPS3.py Normal file
View File

@ -0,0 +1,118 @@
#!/usr/bin/python
# -*- coding:utf-8 -*-
import RPi.GPIO as GPIO
import serial
import time
import paho.mqtt.client as mqtt
ser = serial.Serial('/dev/ttyS0', 115200)
ser.flushInput()
# MQTT Configuration
MQTT_BROKER = "65.108.199.212"
MQTT_PORT = 1883
MQTT_TOPIC = "gps/coordinates"
# Create MQTT client
client = mqtt.Client()
def connect_mqtt():
client.connect(MQTT_BROKER, MQTT_PORT)
client.loop_start()
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, rec_buff
else:
print(rec_buff.decode())
return 1, rec_buff
else:
print('GPS no está listo')
return 0, rec_buff
def get_gps_position():
rec_null = True
answer = 0
print('Iniciando GPS')
send_at('AT+CGPS=1,1','OK',1)
time.sleep(2)
while rec_null:
answer, rec_buff = send_at('AT+CGPSINFO','+CGPSINFO: ',1)
if answer == 1:
if ',,,,,,' in rec_buff.decode():
print('GPS no está listo')
else:
# Parse GPS data
gps_data = rec_buff.decode().split('+CGPSINFO: ')[1].strip()
lat, lon = parse_gps_data(gps_data)
if lat and lon:
# Send GPS coordinates to MQTT broker
mqtt_payload = f"{lat},{lon}"
client.publish(MQTT_TOPIC, mqtt_payload)
print(f"Sent to MQTT: {mqtt_payload}")
rec_null = False
else:
print('error %d'%answer)
send_at('AT+CGPS=0','OK',1)
return False
time.sleep(1.5)
def parse_gps_data(gps_data):
parts = gps_data.split(',')
if len(parts) >= 4:
lat = convert_to_degrees(parts[0])
lon = convert_to_degrees(parts[2])
return lat, lon
return None, None
def convert_to_degrees(raw_value):
if raw_value:
degree = float(raw_value[:2])
minute = float(raw_value[2:])
return degree + (minute / 60.0)
return None
def power_on(power_key):
print('SIM7600X is starting:')
GPIO.setmode(GPIO.BCM)
GPIO.setwarnings(False)
GPIO.setup(power_key,GPIO.OUT)
time.sleep(0.1)
GPIO.output(power_key,GPIO.HIGH)
time.sleep(2)
GPIO.output(power_key,GPIO.LOW)
time.sleep(20)
ser.flushInput()
print('SIM7600X is ready')
def power_down(power_key):
print('SIM7600X is loging off:')
GPIO.output(power_key,GPIO.HIGH)
time.sleep(3)
GPIO.output(power_key,GPIO.LOW)
time.sleep(18)
print('Good bye')
try:
power_key = 6 # Assuming power key is connected to GPIO 6
connect_mqtt()
power_on(power_key)
get_gps_position()
power_down(power_key)
except Exception as e:
print(f"An error occurred: {e}")
finally:
if ser is not None:
ser.close()
client.loop_stop()
client.disconnect()
GPIO.cleanup()