LEGO Interface A (9750/9771) – LEGO Technic Control 1 (TC1) reference/ideas thread

[maehw]

4 hours ago, Bliss said:

And you forgot the ";" at the end of PORTB = newPINB << 2 in your revised code. ;-)

As this seems to be referring to the serial/parallel converter: I had slightly modified Toastie's code and pushed it to this git repo on GitHub: https://github.com/maehw/BrickLines/blob/main/hardware/serial2parallel_converter/arduino_sketch/arduino_sketch.ino

Have a nice weekend, folks.

[Toastie]

9 hours ago, Bliss said:

And you forgot the ";" at the end of PORTB = newPINB << 2 in your revised code. ;-)

Damn ... but this was just the cp'd version from the Arduino IDE, just checked. But thank you very much for noticing, will have to edit that post! 

Best wishes
Thorsten

4 hours ago, maehw said:

Have a nice weekend, folks.

You too!!!

And thank you so much for the link - I somehow lost - or its is buried in this thread. Bookmarked now!

Best wishes
Thorsten

Edited April 3 by Toastie

[Gunners TekZone]

This LVL1 Website might have already been referenced somewhere deep in this "Control Interface-A with Everything" topic?  But here it is again.

And it is working very well.  The touchscreen is a nice "touch" 

Alas, it is not "programmable"... But I think I might take a stab at modifying its sketch to "hopefully" allow this interface to still respond to touch and control the Int-A as it does, but also display and pass on the Inputs and Outputs generated by running code from @Bliss's Blockly development, in place of the NANO that I have already tested to successfully do that.

 

And here is a short video link of it in action, that I will try to keep around as long as I have space in my Public Dropbox.

https://www.dropbox.com/scl/fi/zdk8iptij91zfb25rz5ut/20260410_222147.mp4?rlkey=0whm0j6oniyrun05ws93u67wr&dl=1

 

Edited April 11 by Gunners TekZone

[amine]

On 4/3/2026 at 7:09 AM, maehw said:

As this seems to be referring to the serial/parallel converter: I had slightly modified Toastie's code and pushed it to this git repo on GitHub: https://github.com/maehw/BrickLines/blob/main/hardware/serial2parallel_converter/arduino_sketch/arduino_sketch.ino

Have a nice weekend, folks.

How difficult would be to developp a scratch extension for rcx, interface B and cybermaster support. Ev3 are already supported as scratch extension.

[Toastie]

3 hours ago, amine said:

How difficult would be to developp a scratch extension for rcx, interface B and cybermaster support.

Well, @Bliss has developed a Blockly application, which runs either standalone or in the Chrome web browser. His application, which I highly recommend, supports Interface A, Interface B, RCX, Cybermaster, WeDo 1.0, and sending VLL codes (CodePilot and MicroScout):

This is rather close to scratch, isn't it?

Best
Thorsten 

 

[amine]

39 minutes ago, Toastie said:

Well, @Bliss has developed a Blockly application, which runs either standalone or in the Chrome web browser. His application, which I highly recommend, supports Interface A, Interface B, RCX, Cybermaster, WeDo 1.0, and sending VLL codes (CodePilot and MicroScout):

This is rather close to scratch, isn't it?

Best
Thorsten 

 

But can we push that build  inside an official scratch extention ? That could become very popular.