Not getting Sensor Readings in Pysense with FiPy Module

[livius]

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

ejecting

By ejecting do you mean remove power competly? Or only deepsleep?
If the first then how do you thing the time can be preserved?
Thing about your wath on the hand if you remove battery and you place it after month do you see current time?
If you are interested in starting time from point before reset - and loosing e.g. month is not problem for you - you can save current time to non-volatile memory. You can use pycom.nvs_set or save data to the SD card or not recommended write it to the flash.

Only way to have time - is deepsleep with battery.

[jcaron]

@livius Using deep sleep via a Pysense, Pytrack or deep sleep shield, you should be able to get the remaining time. If you save the time before going to sleep, and on boot, load that time, add the value of the deep sleep time and subtract the remaining sleep time, you should get an approximate real time.

Haven't tried it yet, and I believe on the Pysense/Pytrack the remaining sleep is slightly off, but it should be possible.

[Archana Kadam]

@livius
we have made a parts in main.py program. In each part of program we have declared the string and tried combine all the strings into one by giving a time limit of 30 seconds, after two readings we are an error called OSError: [Errno 22] EINVAL .Would you please give us the sloution for this error. I have attached a code also please go through the code0_1520554484439_tempHum.py

Thanking You

[livius]

@archana-kadam
you concat strings always and never clear it
string1 +=
you probably consume max buffer..

[Archana Kadam]

@jcaron
Can you please send us the code to read current time stamp with fipy board

[seb]

@archana-kadam

Please check the documentation: https://docs.pycom.io/chapter/firmwareapi/micropython/utime.html

https://docs.pycom.io/chapter/firmwareapi/pycom/machine/RTC.html

[Archana Kadam]

@livius
Thank you for this help now we are getting a proper output.

[Archana Kadam]

We are trying to connect to the station and access media using the procedure given the documentation. We are unable to connect to the accurate station and access point to specified IP address and ssid.
Could you please help to this problem

Thank You

[livius]

@archana-kadam
Do you mean Wifi?
How your trying looks like? Any sample code. And if this is Wifi - what are your security settings on your router - WPA2 or something different?

[Archana Kadam]

@livius
Yes, We are trying to connect WiFi and our router is setup at WPA2 configuration.We tried with sample code provided in the pycom documentation.
We want fipy board to be worked as both station and access point

Thank You

[livius]

@archana-kadam
Did you fallowed both samples?
https://docs.pycom.io/chapter/tutorials/all/wlan.html
https://docs.pycom.io/chapter/firmwareapi/pycom/network/wlan.html

better show the code and then we can help more -of course without passwords ;-)

[Archana Kadam]

@livius
https://docs.pycom.io/chapter/firmwareapi/pycom/network/wlan.html
we tried with this sample examples.

[livius]

@archana-kadam

1. what you get when you do

nets = wlan.scan()
print(nets)

2. is there your net ssid? and is there info about WPA2?
3. do you use static IP?
   this line is for static ip settings - but you must change it to follow your router settings

wlan.ifconfig(config=('192.168.0.107', '255.255.255.0', '192.168.0.1', '192.168.0.1'))

[Archana Kadam]

@livius
By using
nets = wlan.scan()
print(nets)
we are getting details of connected WiFI.
Yes we have our net ssid and is configured to WPA2. Yes we were using this wlan.ifconfig(config=('192.168.0.107', '255.255.255.0', '192.168.0.1', '192.168.0.1'))
to configuration. How we can know that our WIFI is connected or disconnected

[livius]

@archana-kadam
you have wlan.isconnected() for that look here:
https://docs.pycom.io/chapter/tutorials/all/wlan.html#connecting-to-a-router

and are you sure that your router have same ip settings? 192.168.0.1?

[Archana Kadam]

@livius

from network import WLAN
wlan = WLAN(mode=WLAN.STA)
nets = wlan.scan()
for net in nets:
    if net.ssid == 'mywifi':
        print('Network found!')
        wlan.connect(net.ssid, auth=(net.sec, 'mywifikey'), timeout=5000)
        while not wlan.isconnected():
            machine.idle() # save power while waiting
        print('WLAN connection succeeded!')
        break

Using above code we are getting the details of connected wifi. And we have different ip address. Here is the screenshot of our output please go through the image and update.
Thank You

[livius]

@archana-kadam
than you are connected to wifi - what more do you need?

[Archana Kadam]

@livius
How we can know that is connected to Wifi?
How we can connect to both station as well as access point?

[Archana Kadam]

@livius
Please explain the procedure of connecting fipy to server and how to send data of fipy to server

[livius]

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

How we can know that is connected to Wifi?

wlan.isconnected()
but to be really sure - only sending by socket tell this for sure

How we can connect to both station as well as access point?

change mode from WLAN.STA in WLAN.STA_AP

Please explain the procedure of connecting fipy to server and how to send data of fipy to server

simply create socket and send data throught it

e.g. from memory not tested but something like this should work

import socket
s = socket.socket()
s = socket.socket(socket.AF_INET, socket.SOCK_STREAM)
s.connect(socket.getaddrinfo('your server ip', your_server_port)[0][-1])
s.send(your_data)