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by John Public
Fri Feb 17, 2017 3:24 pm
Forum: Graphics, sound and multimedia
Topic: Connect an 16x2 LCd display for Arduino to Raspberry PI 3
Replies: 5
Views: 5510

Re: Connect an 16x2 LCd display for Arduino to Raspberry PI

The Aliexpress page where I bought it: https://www.aliexpress.com/item/Free-Shipping-LCD-Keypad-Shield-LCD1602-LCD-1602-Module-Display-for-arduino-ATMEGA328-ATMEGA2560-raspberry-pi/32458411471.html?spm=2114.13010608.0.0.JJHQl7 It says: LCD Keypad Shield LCD1602 LCD 1602 Module Display for arduino AT...
by John Public
Fri Feb 17, 2017 12:13 pm
Forum: Graphics, sound and multimedia
Topic: Connect an 16x2 LCd display for Arduino to Raspberry PI 3
Replies: 5
Views: 5510

Connect an 16x2 LCd display for Arduino to Raspberry PI 3

I have a 16x2 display unit that is soldered to an Arduino UNO LCD keypad shield. There are many instruction videos on how to connect this typical 16x2 lcd display to Raspberry without the Arduino shield which in my case is redundant. It's allready solder to the LCD but the pins on the back of teh sh...
by John Public
Wed Dec 07, 2016 2:16 pm
Forum: Other projects
Topic: RPi 3 as 3d object (Blender, AutoCAD)
Replies: 1
Views: 3604

RPi 3 as 3d object (Blender, AutoCAD)

I'd like to design my own case. Is there a downloadable 3d object with accurate dimensions? I've downloaded a couple, but they seem to be off on a number of ports. A simple version will do. I am using Blender but it imports a number formats.
by John Public
Tue Nov 29, 2016 3:39 pm
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5285
Views: 1654014

Re: RPi Cam Web Interface

I installed the RPi cam interface system. Worked like a charm. Wow! After testing it became a two day operation on how to uninstall it (bummer!), mainly due to problems on uninstalling Apache. Finally I had to reformat the SD card. I'd like to try it again but is there a "lite" version th...
by John Public
Mon Nov 28, 2016 7:58 pm
Forum: Camera board
Topic: RPi Cam Web Interface
Replies: 5285
Views: 1654014

Re: RPi Cam Web Interface

I installed the RPi cam interface system. Worked like a charm. Wow! After testing it became a two day operation on how to uninstall it (bummer!), mainly due to problems on uninstalling Apache. Finally I had to reformat the SD card. I'd like to try it again but is there a "lite" version tha...
by John Public
Sat Nov 26, 2016 3:53 pm
Forum: Camera board
Topic: How to use raspivid with Mjpeg-streamer?
Replies: 0
Views: 671

How to use raspivid with Mjpeg-streamer?

I've been using Mjpeg-streamer with raspistill but I only get 1FPS. I'd like to try with raspivid which has a "-cd MJPEG" option. I've used raspistill from command line like this: raspistill -n -w 320 -h 240 -o /tmp/pic.jpg -tl 50 -t 9999999 -th 0:0:0 and lauch Mjpeg as follows: sudo LD_LI...
by John Public
Mon Nov 21, 2016 8:27 pm
Forum: Camera board
Topic: MJPeg-Streamer and how streaming works
Replies: 0
Views: 529

MJPeg-Streamer and how streaming works

When I do: raspistill --nopreview -w 640 h 480 -o /some.jpg -t1 100 -t 9999999 -th 0:0:0 ..and then open a web browser say Chrome and point to "file:///some.jpg" I get the image from raspistill. If I click repeatedly "reload" in the browser It appears like to low-fps movie clip. ...
by John Public
Sat Oct 15, 2016 2:38 pm
Forum: Networking and servers
Topic: Connecting via WiFI using ONLY command line (not a conf)
Replies: 1
Views: 652

Connecting via WiFI using ONLY command line (not a conf)

I'd like to connect RPi3 via Wifi to home network using command line. What I don't want to edit a configuration file (there is a specific reason for it). Let say the SSID is "MyHome" and WPA-PSK passkey is "12345678" (not hex) and interface is How I noticed that there is a utilit...
by John Public
Sat Oct 15, 2016 2:26 pm
Forum: Networking and servers
Topic: Five second lag from samba to Windows 7
Replies: 2
Views: 807

Re: Five second lag from samba to Windows 7

Thank you for your reply.
I tried using file creation date. It has the same lag problem. I have solved it used another way - just use a TCP connection to get the file.
by John Public
Mon Oct 10, 2016 8:36 pm
Forum: Networking and servers
Topic: Five second lag from samba to Windows 7
Replies: 2
Views: 807

Five second lag from samba to Windows 7

I am testing RPi 3 with camera and I want to distribute jpg images created by Raspistill. I have a script on Windows 7which does the following: 1) deletes file "mypic.jpg" (if it exists) on the RPi folder "/myfolder/" 2) creates a file "ready.dat" there 3) then goes on ...
by John Public
Mon Oct 10, 2016 8:08 pm
Forum: Networking and servers
Topic: Setting my IP camera to record to attached USB drive
Replies: 5
Views: 1561

Re: Setting my IP camera to record to attached USB drive

Can you elaborata how the camera saves its recordings? To a file? Multiple files? How is the camera connected to RPi? Through TCP?
by John Public
Sun Oct 09, 2016 8:26 pm
Forum: General discussion
Topic: USB to USB data cable
Replies: 2
Views: 2079

USB to USB data cable

There was some discussion in 2013 about connecting your RPi to pc (Windows) using an USB to USB data cable. Has anyone used them and do they work with RPi (linux)? - Is there any software installation? - do you have to run a special program to see RPi public folder or can you just copy stuff as if t...
by John Public
Sat Oct 08, 2016 5:24 pm
Forum: General discussion
Topic: Cost effective way to prevent power cut
Replies: 5
Views: 1951

Cost effective way to prevent power cut

When someone just yanks the power cord Raspberry may not like it and the distro my get corrupted.. What can I do softwarewise to avoid problems in this situation? Is there a cost effective way provide just enough power to shut down. Another solution would be a power source with just enough power in ...
by John Public
Fri Oct 07, 2016 6:29 am
Forum: Networking and servers
Topic: Raspberry Pi 2 server
Replies: 4
Views: 1288

Re: Raspberry Pi 2 server

I searched far and wide on how to make samba work with Raspberry. Tehse two pages got my Raspberry and Windows 7 works as expected: http://theurbanpenguin.com/wp/index.php/setting-up-a-samba-server-on-raspberry-pi/ http://www.cyberciti.biz/faq/adding-a-user-to-a-samba-smb-share/ Please note that you...
by John Public
Thu Oct 06, 2016 8:59 pm
Forum: Networking and servers
Topic: A simple TCP repeater/tunnel to get around NAT
Replies: 5
Views: 2541

Re: A simple TCP repeater/tunnel to get around NAT

I am at the point where the birdcam pi connects to a server. The server gets the ipv4 address and the port number. The server can now send and receive with the bidcam. Let's say the ipv4 is 555.55.55.55 and port is 5555. The servers ipv4 is 1111.11.11.11 Then I connect my home computer to the same s...
by John Public
Tue Oct 04, 2016 8:09 pm
Forum: Networking and servers
Topic: A simple TCP repeater/tunnel to get around NAT
Replies: 5
Views: 2541

Re: A simple TCP repeater/tunnel to get around NAT

The USB dongle that has port forwarding disabled by ISP can connect to net and download web pages etc. So the Raspberry birdcam can establish a TCP connection to my home computer that is acting as a server. When a connection is established the server at home gets the Raspberrys ip and port and then ...
by John Public
Sun Oct 02, 2016 7:32 pm
Forum: Networking and servers
Topic: A simple TCP repeater/tunnel to get around NAT
Replies: 5
Views: 2541

A simple TCP repeater/tunnel to get around NAT

I am running a small HTP server on the Rasberry. Works fine when connected via CAT5 cable to a desktop router with portforwarding enabled to port 5500. So when someone outside uses Firefox etc to go to www.whatever.com:5500 they get the usual index.htm my raspberry (listening to 5500) serves. Now I ...
by John Public
Fri Sep 23, 2016 5:36 pm
Forum: Troubleshooting
Topic: PIR and pi - on/off at odd intervals
Replies: 6
Views: 1294

Re: PIR and pi - on/off at odd intervals

Thanks. I added the 10K and got what I wanted.
by John Public
Fri Sep 23, 2016 3:46 pm
Forum: Troubleshooting
Topic: PIR and pi - on/off at odd intervals
Replies: 6
Views: 1294

Re: PIR and pi - on/off at odd intervals

How would I set an internal pull down?
by John Public
Fri Sep 23, 2016 3:09 pm
Forum: Troubleshooting
Topic: PIR and pi - on/off at odd intervals
Replies: 6
Views: 1294

PIR and pi - on/off at odd intervals

I have import RPi.GPIO as GPIO import time GPIO.setmode(GPIO.BCM) # Broadcom pin-numbering scheme GPIO.setup(23, GPIO.IN) # LED pin set as input try: while 1: paalla=GPIO.input(23) if paalla: print("23 ON") else: print("23 OFF") time.sleep(0.5) except KeyboardInterrupt: # If CTRL...
by John Public
Sat Sep 17, 2016 11:32 am
Forum: Graphics programming
Topic: Jpeg lib example?
Replies: 3
Views: 2239

Re: Jpeg lib example?

Hi,
FLTK looks interesting but is there a C (not C++) wrapper?
by John Public
Sat Sep 17, 2016 6:14 am
Forum: Graphics programming
Topic: Jpeg lib example?
Replies: 3
Views: 2239

Jpeg lib example?

I'd like to use jpeg lib and x11 in a C project. After a lengthy Google finding session I still can't find a working simple example. Can someone please post a link or simple code on how to load a Jpeg file and show it in a x11 window. I am not plannin to use Qt or similar - just plain x11 (and the j...
by John Public
Thu Sep 01, 2016 4:01 pm
Forum: C/C++
Topic: Which C compiler/debugger are you using?
Replies: 23
Views: 5421

Re: Which C compiler/debugger are you using?

What do you have there? I've tried different permutations of lxterminal. lxterminal -T $TITLE -e It's important that -e is the last thing as code::blocks relies on being able to put the name of a program to run as the next argument. Does lxterminal work ok if you just run the program from within co...
by John Public
Thu Sep 01, 2016 7:54 am
Forum: C/C++
Topic: Which C compiler/debugger are you using?
Replies: 23
Views: 5421

Re: Which C compiler/debugger are you using?

Just checked, code::blocks works with LXTerminal mostly fine. I just tested it and the only problem I encountered is that when debugging LXTerminal thinks the program has terminated early and gives you a pop-up asking if you want to close the terminal, just say no, you'll have to close it yourself ...
by John Public
Wed Aug 31, 2016 5:54 pm
Forum: C/C++
Topic: Which C compiler/debugger are you using?
Replies: 23
Views: 5421

Re: Which C compiler/debugger are you using?

Just checked, code::blocks works with LXTerminal mostly fine. I just tested it and the only problem I encountered is that when debugging LXTerminal thinks the program has terminated early and gives you a pop-up asking if you want to close the terminal, just say no, you'll have to close it yourself ...

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