118 lines
3.6 KiB
Python
118 lines
3.6 KiB
Python
#!/usr/bin/python
|
|
# -*- coding:utf-8 -*-
|
|
import RPi.GPIO as GPIO
|
|
import minimalmodbus
|
|
import serial
|
|
import time
|
|
import random
|
|
import paho.mqtt.client as mqtt
|
|
|
|
# Modbus Configuration
|
|
mb_address = 1
|
|
sensy_boi = minimalmodbus.Instrument('/dev/ttyUSB0', mb_address)
|
|
sensy_boi.serial.baudrate = 9600
|
|
sensy_boi.serial.bytesize = 8
|
|
sensy_boi.serial.parity = minimalmodbus.serial.PARITY_NONE
|
|
sensy_boi.serial.stopbits = 1
|
|
sensy_boi.serial.timeout = 0.5
|
|
sensy_boi.mode = minimalmodbus.MODE_RTU
|
|
|
|
# GPIO Setup
|
|
GPIO.setmode(GPIO.BCM)
|
|
GPIO.setup(17, GPIO.IN)
|
|
|
|
# MQTT Configuration
|
|
broker_address = "65.108.199.212" # IP or hostname
|
|
port = 1883
|
|
topic = "iiot"
|
|
|
|
def on_publish(client, userdata, result):
|
|
print("Data published!")
|
|
|
|
def send_at(command, expected_response, timeout):
|
|
ser.write((command + '\r\n').encode())
|
|
time.sleep(timeout)
|
|
rec_buff = ser.read(ser.inWaiting()).decode()
|
|
if expected_response in rec_buff:
|
|
print(rec_buff)
|
|
return True
|
|
else:
|
|
print(f"{command} ERROR: {rec_buff}")
|
|
return False
|
|
|
|
def get_gps_position():
|
|
print("Initializing GPS...")
|
|
if send_at("AT+CGPS=1,1", "OK", 1):
|
|
while True:
|
|
if send_at("AT+CGPSINFO", "+CGPSINFO: ", 1):
|
|
if ",,,,,," in rec_buff:
|
|
print("GPS not acquired")
|
|
break
|
|
else:
|
|
print(f"Error getting GPS data: {rec_buff}")
|
|
send_at("AT+CGPS=0", "OK", 1)
|
|
break
|
|
time.sleep(1.5)
|
|
|
|
def power_on(power_key):
|
|
print('SIM7600X is starting...')
|
|
GPIO.setup(power_key, GPIO.OUT)
|
|
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 logging off...')
|
|
GPIO.output(power_key, GPIO.HIGH)
|
|
time.sleep(3)
|
|
GPIO.output(power_key, GPIO.LOW)
|
|
time.sleep(18)
|
|
print('Goodbye')
|
|
|
|
def write_to_influxdb(measurement, tags, fields):
|
|
point = influxdb_client.Point(measurement).tag(**tags).field(**fields)
|
|
write_api = client.write_api(write_options=SYNCHRONOUS)
|
|
write_api.write(bucket=bucket, record=point)
|
|
|
|
def read_sensor_data():
|
|
try:
|
|
client = mqtt.Client("iiot")
|
|
client.on_publish = on_publish
|
|
client.connect(broker_address, port)
|
|
|
|
while True:
|
|
if GPIO.input(17) == GPIO.HIGH:
|
|
data = sensy_boi.read_registers(0, 2, 3)
|
|
humidity = data[0] / 10
|
|
temperature = data[1] / 10
|
|
|
|
print("-------------------------------------")
|
|
print(f"Temperature: {temperature}°C")
|
|
print(f"Humidity: {humidity}%")
|
|
print("-------------------------------------")
|
|
|
|
payload = f"Temperature: {temperature}°C, Humidity: {humidity}%"
|
|
client.publish(topic, payload)
|
|
|
|
# Prepare data for InfluxDB
|
|
measurement_name = "sensor_data"
|
|
location_tag = "your_location" # Replace with actual location
|
|
fruit_tag = "your_fruit" # Replace with actual fruit
|
|
id_tag = "your_id" # Replace with actual ID
|
|
|
|
write_to_influxdb(
|
|
measurement=measurement_name,
|
|
tags={
|
|
"location": location_tag,
|
|
"fruit": fruit_tag,
|
|
"id": id_tag,
|
|
},
|
|
fields={
|
|
"temperature": temperature, # Corrected variable name
|
|
"humidity": humidity, # Add humidity field if needed
|
|
}
|
|
)
|