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- 08 Mai 2024, 16:57
- Forum: Robo Pro / Computing / Software
- Thema: Basis example MQTT in local network
- Antworten: 5
- Zugriffe: 237
Re: Basis example MQTT in local network
Your question is not completely clear to me. In the first place: Please read the MQTT client (Python) documentation carefully: https://eclipse.dev/paho/files/paho.mqtt.python/html/client.html One or more MQTT clients can establish a connection to an MQTT broker. This can be done from different IP ad...
- 07 Mai 2024, 23:15
- Forum: Robo Pro / Computing / Software
- Thema: Robo Pro Coding Python
- Antworten: 11
- Zugriffe: 1704
Re: Robo Pro Coding Python
@mario, Rien van Harmelen It is also possible to use the quite powerful MS-VS code. This gives the opportunity to develop a Python or C++ program remotely on the TXT40 with fairly good support for Python, including a remote debugger. It is then necessary to expand the memory/file system of the TXT40...
- 06 Mai 2024, 22:03
- Forum: Robo Pro / Computing / Software
- Thema: Robo Txt Controller (alt) mit python
- Antworten: 3
- Zugriffe: 248
Re: Robo Txt Controller (alt) mit python
Programming for the original TXT (not TXT40) in C/C++ produces a much faster program. This is especially important in case of closed control loops. The TXT C/C++ library is well documented on fischertechnik github. The SLI (extension for RoboPro) can only be programmed in C/C++. ====================...
- 05 Mai 2024, 23:49
- Forum: Robo Pro / Computing / Software
- Thema: Basis example MQTT in local network
- Antworten: 5
- Zugriffe: 237
Re: Basis example MQTT in local network
Mosquitto broker is the same as what you call Mosquitto server. Mosquitto broker is the name they are using everywhere. I tested it with a mosquitto broker (last version) on my laptop and also with the mqtt broker on the TXT4.0 To define and change the broker is easy in NodeRed NodeRedBrokers.JPG It...
- 05 Mai 2024, 14:32
- Forum: Robo Pro / Computing / Software
- Thema: Basis example MQTT in local network
- Antworten: 5
- Zugriffe: 237
Re: Basis example MQTT in local network
If you like to use the MQTT broker on the TXT itself, replace the IP-address with 127.0.0.1 or localhost
- 05 Mai 2024, 14:00
- Forum: Robo Pro / Computing / Software
- Thema: Basis example MQTT in local network
- Antworten: 5
- Zugriffe: 237
Basis example MQTT in local network
Example of a connection with a Mosquitto MQTT-broker (version 2.0.18) in a (local) network. https://mosquitto.org/ https://cedalo.com/mqtt-academy/ Mosquitto MQTT broker address in this example = 192.168.10.136:1883 (under the condition that the subnetworks, if in use, are well routed) Not over webs...
- 04 Mai 2024, 22:28
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
The Python version for the NFC library: https://pypi.org/project/nfcpy/ The nfcpy module implements NFC Forum specifications for wireless short-range data exchange with NFC devices and tags. It is written in Python and aims to provide an easy-to-use yet powerful framework for applications integratin...
- 29 Apr 2024, 18:44
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
RRFID/NFC in particular is a complex process. It covers various layers of the 7 layer OSI model. Being able to (partially) read the map doesn't say much. Some tags are secure and others are inaccessible. General introduction to NFC: https://digitalgadgetwave.com/understanding-nfc-tags-a-comprehensiv...
- 28 Apr 2024, 19:25
- Forum: Robo Pro / Computing / Software
- Thema: PFC8574 IO Expander mit Robo Pro Coding
- Antworten: 5
- Zugriffe: 353
Re: PFC8574 IO Expander mit Robo Pro Coding
I took a look into this data sheet STM32MP157C MPU with Arm Dual Cortex-A7 650 MHz, Arm Cortex-M4 real-time coprocessor, 3D GPU, This one is offering an Optional hardware clock stretching Maybe somebody knows the exact type of the chip set in the TXT4.0. However the questions stays: does the OS supp...
- 28 Apr 2024, 17:55
- Forum: Robo Pro / Computing / Software
- Thema: PFC8574 IO Expander mit Robo Pro Coding
- Antworten: 5
- Zugriffe: 353
Re: PFC8574 IO Expander mit Robo Pro Coding
I use a PN532 in combination with an FT232H (USB to I2C+GPIO) or with a RaspberryPi 4 (hardware bug older versions), both have no clock stretching, and I have experienced that clock stretching is used during read/write operations of a chip (I2C bus 400kHz) . On the ReaspberryPi5 the clock stretching...
- 27 Apr 2024, 19:04
- Forum: Robo Pro / Computing / Software
- Thema: PFC8574 IO Expander mit Robo Pro Coding
- Antworten: 5
- Zugriffe: 353
Re: PFC8574 IO Expander mit Robo Pro Coding
The problem with the NFC Reader PN532 is that it needs clock stretching. That can not be test with a simple test, you need a slave that holds down the clock. Does the TXT4.0 has implemented the I2C clock stretching protocol and what are the specifications? The TXT had problems with it. he TXT4.0 I2C...
- 27 Apr 2024, 17:56
- Forum: Robo Pro / Computing / Software
- Thema: Fabrik mit Mosquitto Server verbinden.
- Antworten: 5
- Zugriffe: 497
Re: Fabrik mit Mosquitto Server verbinden.
@vleeuwen: Ziel ist es aber nun von einem Dashboard auf mehrere Fabriken zugreifen zu können. Gibt es hier Ideen wie sich dies auch anders realisieren lässt? Meine Idee war jeweils eine Bridge von den Txt Brokern der fabriken zu einem zentralen Broker aufzubauen und dort mit node Red auf alle Fabri...
- 26 Apr 2024, 13:33
- Forum: Robo Pro / Computing / Software
- Thema: Fabrik mit Mosquitto Server verbinden.
- Antworten: 5
- Zugriffe: 497
Re: Fabrik mit Mosquitto Server verbinden.
When you run the MQTT broker locally (on you laptop, raspberry pi or TXT or TXT4.0 and also the node-red dashboard inside your local network, you don't need the bridge. The bridge needs to be used in case that you need cloud functionality. It is possible to connect more factories with one MQTT broke...
- 23 Apr 2024, 13:32
- Forum: Modellideen & -vorstellung
- Thema: Using lego devices with the TXT
- Antworten: 3
- Zugriffe: 609
Re: Using lego devices with the TXT
The lack of a rotary (quadrature) decoder functionality on the TXT4.0 (and the TXT and TX-C) is a loss. The Incremental decoder sometimes causes problems in various applications if there is loopback. However, if the mechanical transmission is blocking, for example with a worm transmission, an increm...
- 21 Apr 2024, 18:41
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
Does the TXT4.0 support a good implemented clock stretching? I can not find it in the specifications. Otherwise you need to use 2 Input pins reset=reset_pin, req=req_pin) # With I2C, we recommend connecting RSTPD_N (reset) to a digital pin for manual # harware reset reset_pin = DigitalInOut(board.D6...
- 21 Apr 2024, 12:50
- Forum: Robo Pro / Computing / Software
- Thema: FTP-Zugriff auf TXT 4.0
- Antworten: 3
- Zugriffe: 464
Re: FTP-Zugriff auf TXT 4.0
@phg-berlin
Reading carefully the user manual or data-sheet, always very important.
The setting part is always very importante too.
Reading carefully the user manual or data-sheet, always very important.
The setting part is always very importante too.
- 19 Apr 2024, 23:49
- Forum: Robo Pro / Computing / Software
- Thema: FTP-Zugriff auf TXT 4.0
- Antworten: 3
- Zugriffe: 464
Re: FTP-Zugriff auf TXT 4.0
With my TXT4.0, it works well.
In the settings menu | remote access (scroll settings!): the SSH needs to be activated (default=off).
See the on-line TXT4.0 user manual.
In the settings menu | remote access (scroll settings!): the SSH needs to be activated (default=off).
See the on-line TXT4.0 user manual.
- 13 Apr 2024, 20:49
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
That definitely sounds like a possible solution but it still seems a bit complicated. There must be a way to communicate with the NFC Reader via libraries that can be installed on the TXT itself, without using the SD memory workaround... FileZilla remote connection SSH SFTP connection. Putty voor r...
- 13 Apr 2024, 01:46
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
@NFC-Enjoyer I was using MS-Visual Studio code to develop and install Python (libraries with pip(3)) Software remotely on the TXT4.0. However the TXT 4.0 file oriented memory is to small for the VS code supporting files. I moved the VS code supporting file a SD memory card in the TXT4.0; see the MS-...
- 04 Apr 2024, 22:25
- Forum: Robo Pro / Computing / Software
- Thema: NFC-Reader Beispielsoftware
- Antworten: 23
- Zugriffe: 2100
Re: NFC-Reader Beispielsoftware
RoboPro coding => TXT4.0 Python Probably you need: to develop a driver in Python for the PN532 from adafruit_pn532.i2c import PN532_I2C import nfc import ndef A suggestion for an experiment with PN532: Be aware of the I2C clock stretching issues of the pn532, see the data sheet and adafruit If the I...