Go to advanced search

by david_1234
Tue Nov 06, 2018 3:35 pm
Forum: Advanced users
Topic: how can I duplicate my PI ?
Replies: 9
Views: 1815

how can I duplicate my PI ?

Hello ,
I have build a pi with al kind of script\setting
and now I wnat to make 3-4 units the same
is there any whay to create the image from my working pi and then jsut upload\install it to other sd cars
then it will work on the pi?

I hope me question in understanble :-|

Thanks,
by david_1234
Thu Nov 01, 2018 11:46 am
Forum: Beginners
Topic: PI clock doesn't sync
Replies: 9
Views: 798

Re: PI clock doesn't sync

off by 3 months maybe....

I will try
by david_1234
Thu Nov 01, 2018 11:15 am
Forum: Beginners
Topic: PI clock doesn't sync
Replies: 9
Views: 798

Re: PI clock doesn't sync

I did what you told me
and this is what I get

Current default time zone: 'Asia/Jerusalem'
Local time is now: Fri Sep 28 11:21:09 IDT 2018.
Universal Time is now: Fri Sep 28 08:21:09 UTC 2018.
by david_1234
Wed Oct 31, 2018 2:40 pm
Forum: Beginners
Topic: PI clock doesn't sync
Replies: 9
Views: 798

PI clock doesn't sync

Hello ,
a starnge problem
I'm using PI 3 with internet access
(I have ping to google.com)

but my clock show
Image

this was taken today at 31.10.2018 16:40...

never see this problem with other PI I'm working with

what to do ?

Thanks ,
by david_1234
Tue Oct 23, 2018 2:29 pm
Forum: General discussion
Topic: How to read data from DHT11 sensor ?
Replies: 3
Views: 382

How to read data from DHT11 sensor ?

Hello , I saw that in order to read data I can use 1-wire option but how do I use it? I have look here http://www.circuitbasics.com/how-to-set-up-the-dht11-humidity-sensor-on-the-raspberry-pi/ but it doesn't work I have also look here https://tutorials-raspberrypi.com/raspberry-pi-temperature-sensor...
by david_1234
Tue Oct 23, 2018 8:50 am
Forum: General discussion
Topic: can I run\debug a c# program in PI?
Replies: 3
Views: 524

can I run\debug a c# program in PI?

Hello ,
I have a c# code I wrote using visual studio

how can I make it work on PI3 B+?

I found I can do this using Mono
but when I open the program and select the code it shutdown.....

any other way to write a code and debug it ?

Thanks ,
by david_1234
Tue Oct 23, 2018 7:46 am
Forum: General discussion
Topic: how can I connect a usb to rs485 to PI?
Replies: 3
Views: 871

Re: how can I connect a usb to rs485 to PI?

I want to connect the USB to the PI and send data using C# program to a device how do I define it in the code ? I can see the device : susb Bus 001 Device 005: ID 0403:6001 Future Technology Devices International, Ltd FT232 USB-Serial (UART) IC Bus 001 Device 004: ID 0424:7800 Standard Microsystems ...
by david_1234
Mon Oct 22, 2018 2:58 pm
Forum: General discussion
Topic: how can I connect a usb to rs485 to PI?
Replies: 3
Views: 871

how can I connect a usb to rs485 to PI?

Hello ,
I'm using this usb-rs485 from "SparkFun" on my windows computer
https://www.sparkfun.com/products/9822

can I use it on PI 3?

or do I need another device ?

Thanks ,
by david_1234
Tue Oct 16, 2018 9:54 am
Forum: Beginners
Topic: How can I connect Canbus and RFID to the same PI?
Replies: 7
Views: 862

Re: How can I connect Canbus and RFID to the same PI?

strange thing I have try to do this with another PI the RFID is working the Cnabus not I have took the Canbus and connected it to my first PI - and it's working (so the problem is not in the device itself) I copy the config file as is - and still not working check the connections - all are good : IN...
by david_1234
Thu Sep 27, 2018 9:14 am
Forum: Beginners
Topic: How can I connect Canbus and RFID to the same PI?
Replies: 7
Views: 862

Re: How can I connect Canbus and RFID to the same PI?

I have change the boot/config.txt like you told me # Uncomment some or all of these to enable the optional hardware interfaces dtparam=i2c_arm=on #dtparam=i2s=on dtparam=spi=on dtoverlay=mcp2515-can1,oscillator=8000000,interrupt=12 dtoverlay=spi-bcm-overlay and it's working - Thanks , I will ask if ...
by david_1234
Sun Sep 16, 2018 9:57 am
Forum: Beginners
Topic: How can I connect Canbus and RFID to the same PI?
Replies: 7
Views: 862

Re: How can I connect Canbus and RFID to the same PI?

can you help me with finding where to change the CEO pin for the canbus? I thought its in the /boot/config - but no couldn't find anywhere but if I llo at the MFRC522.py file , Ionly get the reset pi ? [code def __init__(self, dev='/dev/spidev0.0', spd=1000000): spi.openSPI(device=dev,speed=spd) GPI...
by david_1234
Thu Sep 13, 2018 8:40 am
Forum: Beginners
Topic: running RFID with java - how to ?
Replies: 0
Views: 613

running RFID with java - how to ?

Hello , I have wroking with python code as shown here https://pimylifeup.com/raspberry-pi-rfid-rc522 and I want to use java code to work with the reading of the RFID I have found this https://github.com/Sacredgamer/RFID-RC552-Interface - this because I have a ready java code , and I want to add to i...
by david_1234
Thu Sep 13, 2018 8:36 am
Forum: Beginners
Topic: How can I connect Canbus and RFID to the same PI?
Replies: 7
Views: 862

Re: How can I connect Canbus and RFID to the same PI?

Great I will try it and see if i have any problems...

Thanks ,
by david_1234
Wed Sep 12, 2018 7:11 pm
Forum: Beginners
Topic: How can I connect Canbus and RFID to the same PI?
Replies: 7
Views: 862

How can I connect Canbus and RFID to the same PI?

Hello , I wanted to know how can I connect canbus interface with this setting: https://www.raspberrypi.org/forums/viewtopic.php?t=141052 and RFID https://pimylifeup.com/raspberry-pi-rfid-rc522/ to the same Pi ? I'm using PI 3 and every setup alone is working but can I connect both of them and make t...
by david_1234
Thu Aug 30, 2018 1:57 pm
Forum: Beginners
Topic: PI 3 eth0 IP setting problem - have ping but no DNS?
Replies: 2
Views: 240

Re: PI 3 eth0 IP setting problem - have ping but no DNS?

the setting where madew in the eth0 interface GPIO (from the upper right corner)

I guess my problem was soemthing in the DNS of that router (10.0.0.1)
I have change it and - everything start to work.

Thanks ,
by david_1234
Thu Aug 30, 2018 1:22 pm
Forum: Beginners
Topic: PI 3 eth0 IP setting problem - have ping but no DNS?
Replies: 2
Views: 240

PI 3 eth0 IP setting problem - have ping but no DNS?

Hello , I'm trying to setup my PI to be 10.0.0.100/24 DG is 10.0.0.1/24 the DNS is also from 10.0.0.1 this is waht I did: IPv4 Address 10.0.0.100/24 IPv6 Address _ Blanck Router 10.0.0.1 DNS Server 10.0.0.1 DNS Search 10.0.0.1 this is what I get pi@raspberrypi:~ $ ifconfig eth0: flags=4163<UP,BROADC...
by david_1234
Thu Aug 30, 2018 12:52 pm
Forum: Beginners
Topic: VNC on PI 3 is - see only half of desktop?
Replies: 2
Views: 285

VNC on PI 3 is - see only half of desktop?

Hello , up until now I used vnc with PI 2 - everything works great now I started to use PI3 - but when I enter using VNC - I get only half of the screen I have try to change all scaling in the Propoties but nothing . can't see the destop as I would if I'm connection using HDMI cable so what to do ? ...
by david_1234
Mon Aug 06, 2018 2:39 pm
Forum: Beginners
Topic: using PI with 2 serail ports?
Replies: 3
Views: 354

using PI with 2 serail ports?

Hello ,
wanted to know
I want to be able to read data from 2 serail devices at the same time
does the PI have this option?
open 2 serail ports at the same time ? or does it have only 1 ?


Thanks ,
by david_1234
Tue Jul 24, 2018 1:51 pm
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

1. what do you mean by - "look at screen"? then what will I see when I log ? the first 2 min? "live" data? - also how do I do this? 2. output the data - not good option for me , I don't need to save it . but i will think about this option 3. I have try systemd - you can see in previos post - also do...
by david_1234
Sun Jul 22, 2018 9:13 am
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

still not working ,
the code is running (as it should - I get the reading to my server) but I don't see nothing when I login to the PI .

did you see what I have post?
what I wnat to see when I log to the PI?

Thanks ,
by david_1234
Thu Jul 19, 2018 10:18 am
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

to save future problems\questions 1. I guess I need to remove what I added to the rc.local, right? so the only referance I will have is in the .bashrc file ? 2. I have added the lines you told me in the end of the file , so the end of the file look like this : # enable programmable completion featur...
by david_1234
Thu Jul 19, 2018 8:59 am
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

I know it's not working because my code is a loop that reading data from serial and sending a UDP to my server once every 30 seconds. when I did what you told me (remove the " ' " and add " & " ) - after booting I didn't get UDP (and I wait for 10 min). when I return to my starup setting - after boo...
by david_1234
Wed Jul 18, 2018 11:10 am
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

the java is not a graphical .
my java is a read data from connected devcie and dispaly it as text .

I have done what you say
change the rc.local
but now it's not running at all at startup :-(

why?

Thanks ,
by david_1234
Wed Jul 18, 2018 10:58 am
Forum: Beginners
Topic: open CMD on startup with and eun a command?
Replies: 14
Views: 1295

Re: open CMD on startup with and eun a command?

and what about the last line ? 'exit 0 ' should I leave it as is ? or remove it at all? and to to the same ? exit 0 & ? about the second answer of topguy the java is run auto when the PI is power , so I don't understad the quesion . and when I say CMD - I do mean Terminal :-) so I wnat to be able to...

Go to advanced search