Die Suche ergab 1085 Treffer

von vleeuwen
22 Jan 2020, 22:17
Forum: fischertechnik allgemein
Thema: mehrere Controller über USB verbinden
Antworten: 6
Zugriffe: 847

Re: mehrere Controller über USB verbinden

Beside my experiments of a web socket-SLI to control a model with a web page, which POC (prove of concept) is successful, I like to mentioning the next idea here too. This idea has a narrow relation with your problem. I am setting up an experiment to create a cluster of TXT's, one as WLAN-access poi...
von vleeuwen
21 Jan 2020, 10:56
Forum: Modellideen & -vorstellung
Thema: TXT's in a stand alone wireless ip-network
Antworten: 3
Zugriffe: 167

Re: TXT's in a stand alone wireless ip-network

A new point of research in this project could be: Can a TXT in the access point mode also act as IP-router? This functionality is necessary when 2 or more clients are connected and client A will be communicate with client B. To test if this kind of commands will work. https://linuxcommando.blogspot....
von vleeuwen
20 Jan 2020, 18:21
Forum: Modellideen & -vorstellung
Thema: TXT's in a stand alone wireless ip-network
Antworten: 3
Zugriffe: 167

Re: TXT's in a stand alone wireless ip-network

@Richard, thanks, I hope that the practice is doing this. My expectation is yes. The USB address can set in the same two files, but I didn't test it yet. On Windows there exists a routing table, probably on UNIX too. I hope to have everything, including the Civetweb SLI, ready at the North-convention.
von vleeuwen
19 Jan 2020, 21:16
Forum: Modellideen & -vorstellung
Thema: TXT's in a stand alone wireless ip-network
Antworten: 3
Zugriffe: 167

TXT's in a stand alone wireless ip-network

Idea for a project to create a combination of a couple of TXT in a private stand alone netwerk. One TXT (m) could act as a WLAN access point. One or more TXT's could act as clients in this same network. A other device could also be part of this network. Points of research: 1) how the DHCP server of ...
von vleeuwen
18 Jan 2020, 14:18
Forum: Modellideen & -vorstellung
Thema: TXTft- bot controlled from a web page
Antworten: 0
Zugriffe: 94

TXTft- bot controlled from a web page

For the moment I a working at the next project. A fischertechnik bot ( two wheel drive car) like the football player car. TXT with fischertechnik firmware 4.6.6 RoboPro local program with additional SLI's (additional RoboPro elements) One of the SLI's contains a embedded Civetweb server including a ...
von vleeuwen
16 Jan 2020, 11:09
Forum: fischertechnik allgemein
Thema: mehrere Controller über USB verbinden
Antworten: 6
Zugriffe: 847

Re: mehrere Controller über USB verbinden

@Lari The BT connection is also present itself as a fix IP address 192.168.9.2 . Both Putty and FileZila can use that address too. However to use BT with two TXT, gives the same problem as USB. The IP-addresses for USB and LAN access point can be changed in the configuration file. So where can the I...
von vleeuwen
15 Jan 2020, 17:50
Forum: fischertechnik allgemein
Thema: mehrere Controller über USB verbinden
Antworten: 6
Zugriffe: 847

Re: mehrere Controller über USB verbinden

You have right, in these 2 files you can change the address of the USB and the WLAN access point. But you need to have root access for changing them. www,xxx,yyy,zzz The www.xxx.yyy needs to be in the range of private networks . If you change the netmask , you can also change the zzz. For example 19...
von vleeuwen
14 Jan 2020, 13:32
Forum: Robo Pro / Computing / Software
Thema: FT Computing 80er Jahre
Antworten: 8
Zugriffe: 810

Re: FT Computing 80er Jahre

The old fischertechnik parallel interface can be used with the Knobloch USB box. However, the result will be disappointing. The sampling rate of the old parallel interface is much faster than the 10 msec of the box. So the closed control loops will not work properly, no stability in the control loop...
von vleeuwen
11 Jan 2020, 23:42
Forum: Robo Pro / Computing / Software
Thema: Websocket zur Sensordatenuebermittlung - TXT Controller
Antworten: 10
Zugriffe: 808

Re: Websocket zur Sensordatenuebermittlung - TXT Controller

Certainly, SLI's are C/C++ project
(Embedded) CivetWeb also.
But is no low level C/C++ coding.
It differ not so much from Python and the Eclipse development environment is very helpful.
von vleeuwen
11 Jan 2020, 21:55
Forum: Robo Pro / Computing / Software
Thema: Websocket zur Sensordatenuebermittlung - TXT Controller
Antworten: 10
Zugriffe: 808

Re: Websocket zur Sensordatenuebermittlung - TXT Controller

I agree with Torsten, Python and RoboPro can't easy be combined. It looks like that the internal fischertechnik TXT Berkeley-socket is limit to one client. However there are some solutions. All in the line of how the TXT MotorIO and his FRoboPy is operating, namely socket based communication. Becaus...
von vleeuwen
10 Jan 2020, 11:47
Forum: Robo Pro / Computing / Software
Thema: Discussion How to setup the Eclipse environement for cross-compiling
Antworten: 0
Zugriffe: 462

Discussion How to setup the Eclipse environement for cross-compiling

On the fischertechnik GitHub there was a question about how to setup the Eclipse environment for developing downloadable C-applications and SLI for the fischertechnik TXT firmware (4.6.6 and higher). This on a Windows 10 system and for cross compiling to the TXT. The fischertechnik Factory applicati...
von vleeuwen
10 Jan 2020, 10:58
Forum: Robo Pro / Computing / Software
Thema: TXT and CivetWeb
Antworten: 3
Zugriffe: 455

Re: TXT and CivetWeb

Example code of a RoboPro SLI for sending data to the web socket client: (Eclipse C/C++ dialect level 11 /** * POC (proof of concept) * RoboPro SLI element for sending (push) information about the joysticks and 2 motors * over a web socket to the connected clients. * This example is Json based, howe...
von vleeuwen
09 Jan 2020, 23:39
Forum: Robo Pro / Computing / Software
Thema: Gabellichtschranke in robo pro nutzen.
Antworten: 6
Zugriffe: 393

Re: Gabellichtschranke in robo pro nutzen.

https://en.wikipedia.org/wiki/Nyquist–Shannon_sampling_theorem https://de.wikipedia.org/wiki/Nyquist-Shannon-Abtasttheorem For the basic behind sampling and closed control loops stability. You need to adapt the speed of the model to the limitations of the available control system. I could always fas...
von vleeuwen
08 Jan 2020, 22:50
Forum: Robo Pro / Computing / Software
Thema: Gabellichtschranke in robo pro nutzen.
Antworten: 6
Zugriffe: 393

Re: Gabellichtschranke in robo pro nutzen.

Be careful with your expectations regarding a closed control loop: However, this sensor does not work properly with the speed of the original models (Centronic interface). The sampling rate of the TX-C or TXT is approximately 10 ms in the online mode. For this, the pulse high and low time must be at...
von vleeuwen
07 Jan 2020, 16:57
Forum: Robo Pro / Computing / Software
Thema: TXT and CivetWeb
Antworten: 3
Zugriffe: 455

Re: TXT and CivetWeb

The embedded part of the CivetWeb can be integrated in a SLI RoboPro extension and start/stop with RoboPro elements. Civetweb is offering WebSocket, CGI access to the IOMotor of the TXT. It also let the TXT act as normal Webserver with server side LUA, ECMAScript programming, My POC ( proof of conce...
von vleeuwen
07 Jan 2020, 09:22
Forum: Robo Pro / Computing / Software
Thema: Programm 'teilen'
Antworten: 9
Zugriffe: 455

Re: Programm 'teilen'

Certainly below the surface RoboPro is using all the low level stuff. The CPU is still a sequential system. At that level even thread don't exist, if present only hardware context switches. However the question is "what is RoboPro offering" in terms of his workflow elements. For example with functio...
von vleeuwen
06 Jan 2020, 11:28
Forum: Robo Pro / Computing / Software
Thema: Programm 'teilen'
Antworten: 9
Zugriffe: 455

Re: Programm 'teilen'

I think that you need to take in account in your programming design strategy that RoboPro is workflow oriented programming paradigm with data flow for process synchronization. It also doesn't know event driven programming. It doen't have threads. This differs essentially from sequential programming ...
von vleeuwen
28 Dez 2019, 18:28
Forum: Robo Pro / Computing / Software
Thema: Keine Rechte auf libs
Antworten: 6
Zugriffe: 409

Re: Keine Rechte auf libs

ex1.JPG At least the "lock interface" could be used. (on the red SLI elements) This is an example of a dedicate read operation on a very complex I2C device. This is dedicate read action on a I2C device. The Read function (blue) split up an long int into several short. The I2C address, I2C read oper...