fischertechnik community forum

Interesting project!

One question: The NEMA 14 stepper motor from Pololu has a shaft diameter of ⌀ 5 mm “D”.

How to connect it to the standard ⌀ 4 mm used by fischertechnik axes?

EEPROM implies erasing a block (a set of continuous memory bytes) before writing a new value. I'd recommend FRAM, which combines RAM ease-of-use and Flash data-persistence. FRAM chips are available for the I²C bus, come with different operating voltages (3.3V or 5V). Look for Cypress FM24C04B , whic...

I've developed smartNode, an I²C-driven BLE interface that connects the RoboTX to Node-RED. Node-RED provides a nice IDE to design and run a dashboard. http://reivilofischertechnik.weebly.com/uploads/1/1/6/2/11622422/2016-12-10-18-13-56-capture-orig_orig.jpg http://reivilofischertechnik.weebly.com/u...

For the RoboTX, please refer to

• How to connect an I²C Device to the RoboTX?​, and
• I²C LCD screen 4 lines of 20 characters LCD03.

For the Robotics TXT, see

• How to connect an I²C Device to the Robotics TXT?

Hi! I went through the very interesting industrial models aimed at the academia. 536625 Vacuum Gripper Robot 9V 536626 Automated High-Bay Warehouse 9V 536627 Multi Processing Station with Oven 9V 536628 Sorting line with detection 9V 536629 Factory Simulation 9V Two questions: Are the Robotics TXT c...

One month later, what are the news about release 4.2.4 of RoboPro?

@Marspau, @ski7777, @richard.kunze

Thank you for your answers.

Teens willing to play with technology in my country do read English enough to understand technical documents. Additionally, I'm not sure there are many ft-fans in my country.

So I'd better focus on debugging instead of translating.

Any news on the next release of RoboPro 4.2.4 with fixes?

Thank you!

Für mich sind die wichtigsten Punkte Und zuguterletzt denke ich ist es durchaus sinnvoll, wenn wir unsere Doku auf Github zweisprachig führen. Schließlich dürften die allermeisten TXT-Benutzer Deutsch als Muttersprache haben. Das wäre übrigens auch der Punkt, an dem auch jemand ohne Programmierkenn...

Similarly, I'd like to see an extension for the Robotics TXT, bringing new GPIOs without the screen and WiFi.

On the RoboTX controller, the 0x53 address was forbidden but actually usable for reading the values. I'm still waiting for an answer about the Robotics TXT. As you rightly point out, the ADXL345 accelerometer is superseded by much better solutions. For example, the MPU9250 and BNO055 pack three sens...

Check the type of integer you're using in RoboPro: signed integer or unsigned integer. The -490.5 °C looks like an overflow or a complement to 21.5 °C. RoboPro 4.2.3 has introduced signed integer and unsigned integer. If you're using the integer-to-float converter, check the input type. The best sol...

I've posted on my website How to connect an I²C Device to the Robo TX?​ How to connect an I²C Device to the Robotics TXT? List of I²C Drivers with examples, including clock, LCD display, RGB LED, colour sensor, stepper motor controller, camera, compass, accelerometer, and much more. I've developed m...

Dear Markus:

Thank you so much!

Some of those FTDI adaptors run on 5V and other on 3.3V.

As the Robotics TXT operates at 3.3V, check you're using the 3.3V-rated FTDI adaptor.

Yes please! Thank you!

Is the same document available in English? Thank you!

An interesting repository with many resources for Lego Mindstorm with Linux Mini.

What is the protocol used between TXT controllers, master and extension: I²C, CAN, proprietary?