Not getting Sensor Readings in Pysense with FiPy Module

[Archana Kadam]

@livius
We are running the below code on the FiPy to send data to the server. and we are using FiPy in its default mode i,e Access Point Mode.

import socket
s = socket.socket()
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(socket.getaddrinfo('192.168.0.109', 80)[0][-1])
your_data = "Hello"
s.send("your_data")

Can you send us the one complete example code which sends data from fipy to server. Where a local computer in the same network can be used as server.

Thank You

[livius]

@archana-kadam
with default mode AP you must connect your computer to Fipy.
In mode STA you connect your Fipy to computer (most often through router)
After you are connected to the network (local) you can communicate between computer and Fipy.

from network import WLAN
import socket

wlan = WLAN(mode=WLAN.STA)
# wlan.ifconfig(config=('192.168.0.105', '255.255.255.0', '192.168.0.1', '192.168.0.1')) - you can ommit this line if you need to connect by DHCP
wlan.connect(ssid='mynetwork', auth=(WLAN.WPA2, 'my_network_key'), timeout=30000)

while not wlan.isconnected():
	machine.idle()	
	
if wlan.isconnected():
	s = socket.socket()
	s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	s.connect(socket.getaddrinfo('192.168.0.109', 2345)[0][-1]) #IP of your computer(192.168.0.109) in the same network as your Fipy and port(2345) of socket in listen mode on your computer
	your_data = "Hello"
	s.send("your_data")

remember that you must have something listen on incoming traffic on your computer then.

[Archana Kadam]

@livius
We have successfully connected to the server by the given code, but we are getting an error in line number 14, im sending the screenshot please go through the file

[livius]

@archana-kadam
remove line 13 s = socket.socket()

P.S> i have blurred your password on the screenshot

[Archana Kadam]

@livius
I removed line 13 "s = socket.socket()" but also im getting an error in line number 15
i,e #your_data = "hello"

[jcaron]

@archana-kadam and the error is...?

[Archana Kadam]

@jcaron
OSError -1

[Archana Kadam]

@jcaron
I will attach the screenshot and i have highlighted the error line.

[jcaron]

@archana-kadam are you sure you correctly re-uploaded the modified file?

[Archana Kadam]

@jcaron
Yes i re-uploaded the modified file.
Earlier it was #your_data = "Hello"

[livius]

@archana-kadam
Quite impossible on line 15 where you store text (connect to your device by ftp and look like your file really is)

but do you have host 192.168.0.109 and especially do you have something which listen on that host on port 2345?

[Archana Kadam]

@livius
Here is code which im using to connect to the server.

from network import WLAN
import machine
import socket

wlan = WLAN(mode=WLAN.STA)
# wlan.ifconfig(config=('192.168.0.105', '255.255.255.0', '192.168.0.1', '192.168.0.1')) - you can ommit this line if you need to connect by DHCP
wlan.connect(ssid='ssid...', auth=(WLAN.WPA2, 'passs...'), timeout=30000)

while not wlan.isconnected():
	machine.idle()

if wlan.isconnected():
	s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
	s.connect(socket.getaddrinfo('192.168.0.109', 80)[0][-1]) #IP of your computer(192.168.0.109) in the same network as your Fipy and port(80) of socket in listen mode on your computer
	#your_data = "Hello"
	s.send("your_data")

Yes i have the same IP address and the port is 80. By using the same code im getting an error is
Traceback (most recent call last):
File "<stdin>", line 15, in <module>
OSError: -1

[livius]

@archana-kadam said in Not getting Sensor Readings in Pysense with FiPy Module:

strange because line 15 is just comment line

add this lines before socket connect

print(str(socket.getaddrinfo('192.168.0.109', 80)))
print(str(socket.getaddrinfo('192.168.0.109', 80)[0][-1]))

and put result here

[Archana Kadam]

@livius said in Not getting Sensor Readings in Pysense with FiPy Module:
from network import WLAN
import machine
import socket
wlan = WLAN(mode=WLAN.STA)

wlan.ifconfig(config=('192.168.0.109', '255.255.255.0', '192.168.0.1', '192.168.0.1')) - you can ommit this line if you need to connect by DHCP

wlan.connect(ssid=‘SK@unifi’, auth=(WLAN.WPA2, '********'), timeout=30000)

while not wlan.isconnected():
machine.idle()

if wlan.isconnected():
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
print(str(socket.getaddrinfo('192.168.0.109', 80)))
print(str(socket.getaddrinfo('192.168.0.109', 80)[0][-1])) #IP of your computer(192.168.0.109) in the same network as your Fipy and port(80) of socket in listen mode on your computer
#your_data = "Hello"
s.send("your_data")
Here is and code and we are getting the same errors i,e

Traceback (most recent call last):
File "<stdin>", line 14
IndentationError: unindent does not match any outer indentation level

MicroPython v1.8.6-849-055728a on 2018-02-13; FiPy with ESP32
Type "help()" for more information.

[livius]

@archana-kadam said in Not getting Sensor Readings in Pysense with FiPy Module:

IndentationError: unindent does not match any outer indentation level

check if you do not mix indentation as tab and space

PS. use forum formating http://commonmark.org/help/ e.g. triple ``` around the code

[Archana Kadam]

@livius
We are trying to run the LoRa Nano Gateway code provided in the pycom documentation. We are using three PC's and three fipy boards. In one pc we are running the Gateway.py , second we are running Node.py and in third pc we are running the RawLora.py codes. But we are getting an error in Gateway.py code in Line 26 i,e buffer too small. Is the procedure we are doing is correct? Please reply us soon as possible.
Thank You

[Archana Kadam]

@livius
We are trying to run the LoRa Nano Gateway code provided in the pycom documentation. We are using three PC's and three fipy boards. In one pc we are running the Gateway.py , second we are running Node.py and in third pc we are running the RawLora.py codes. But we are getting an error in Gateway.py code in Line 26 i,e buffer too small. Is the procedure we are doing is correct? Please reply us soon as possible. Its urgent
Thank You

[livius]

@archana-kadam
WIthout the code i can only gues that you try to send to big data throught Lora. It is very limited. Check how much data is really sending.

[Archana Kadam]

@livius
I used the codes from provided pycom documentation. Here are the links of the code
https://docs.pycom.io/chapter/tutorials/lora/lora-mac-nano-gateway.html
https://docs.pycom.io/chapter/tutorials/lora/lora-mac.html

[livius]

@archana-kadam
in documentation gateway line 26 is empty...
You have some modification which i do no see ;-)