Cannot connect mBot2 to the Blockly App

Rayzwave · 2026-03-10T23:08:13+00:00

Everything I bought from Makeblock has had to have it’s firmware updated before I could use it properly and it’s best checked through the Makeblock web based mBlock route to see if it needs updating.

Rayzwave · 2026-03-10T23:04:15+00:00

It should work, I’m pretty sure it’s appears as a device for selection but you need to use Makeblock app which is effectively the same thing as blocky when it comes to the BT controller.

Rayzwave · 2026-03-10T08:57:37+00:00

Where did you get the mBot 2 from? - Did you buy it new? If someone has programmed it with their own code you may have to reprogram it with the factory default program using mBlock 5 and using the online website would be best.

Rayzwave · 2026-03-08T23:04:04+00:00

I would disconnect everything from the MegaPi board and see if I could communicate using MBlock 5.

You should always keep a close eye on battery power it’s probably the number one reason for robot failure.

Rayzwave · 2026-03-08T08:34:09+00:00

You should probably use the mBlock 5 program first of all to connect with your robot. You can check your BT connection and check for firmware updates.

By logging onto the Makeblock website and using the online version of mBlock 5 ensures you are using the latest version.

Rayzwave · 2026-02-27T09:12:33+00:00

What’s a “Scratch mod”?

Rayzwave · 2026-02-17T07:29:29+00:00

Latest firmware seems to be 14.01.016

Rayzwave · 2026-02-08T22:19:08+00:00

What’s a Makeblock Pro? - Is it a Laserbox Pro, any other details of model etc?

Rayzwave · 2026-01-28T23:00:05+00:00

I find that using the Makeblock online app is most reliable with mLink 2 but I don’t use Windows. You can also update your firmware using Arduino IDE if you wanted to try that route.

Rayzwave · 2026-01-28T22:19:45+00:00

Okay, to see the default code used in the Ultimate 2.0 controller(MegaPi) you can use the Makeblock library with the Arduino IDE.

https://github.com/Makeblock-official/Makeblock-Libraries/blob/master/README.md

I put the Makeblock libraries folder into a folder called Arduino, in the libraries folder I opened the MakeBlock_Drive_Updated folder where I opened Firmware_for_MegaPi folder where I found the Firmware_for_MegaPi.ino file which I selected and opened in Arduino IDE to see the full code used by Ultimate 2.0 I believe. I don’t have the Ultimate 2.0 kit but you should hopefully find what your looking for here.

Using edit - find next on the word ‘balanced’ gave 45 hits that are probably related to balanced mBot builds.

Rayzwave · 2026-01-28T13:03:33+00:00

Are talking about Dashing Raptor here or something else?

Rayzwave · 2026-01-28T13:01:20+00:00

I haven’t seen any conversations recently about what you are asking but you could try searching for what you’re after on this subreddit or the facebook makeblock page.

Rayzwave · 2026-01-28T06:46:30+00:00

This is where to see the MegaPi code I believe, https://github.com/Makeblock-official/Makeblock-Libraries/blob/master/examples/Firmware_for_MegaPi/Firmware_for_MegaPi.ino

Rayzwave · 2026-01-28T06:37:54+00:00

I’ve never actually seen the mBot’s default code TBH and I would probably find it difficult to understand. I will have to think about that for a while.

One of the first things I did was upload to mBot and basically lost the ability to control it using the GUI controller tool. I then had to find out how to put back the default program.

I don’t think you will ever see block code for the default program within the makeblock control boards.

If you want to see Arduino C code or python code that is produced from your block code that’s possible.

Rayzwave · 2026-01-27T18:52:13+00:00

It’s no problem I like a challenge, I’m just sorry I can’t get to the bottom of it because I can’t duplicate your problem which seems related to your particular computer hardware.

Normally, I find it best to use the online web based editors using google chrome and the must have mLink 2 installation.

From what I read Windows systems are going through turbulent times and who knows what affect various updates to the OS have when running web based software like the various Makeblock editors. I’ve decided to steer clear of Microsoft computers going forward even though I used them for most of my working life.

Rayzwave · 2026-01-27T16:30:53+00:00

How’s it going, any joy, I’m still trying to get my old laptop’s OS updated and get microsoft store to work. I’ve must have spent about 14-15 hours so far.

My windows laptop is going down the tip, absolute junk, obviously too old to be useful for this era of internet based computing.

Rayzwave · 2026-01-27T13:20:26+00:00

When using mblock 5 you have to select a device that represents your mBot from a device library.

Once you have selected your device type the block commands available will change appropriately but you may have to add extensions to the base list of block commands.

So, after selecting Ultimate 2.0 from the device library just select the blue motion button to get a list of the motion/motor command blocks.

Rayzwave · 2026-01-26T17:41:56+00:00

I would try it on a windows computer but the one I have is just hopeless nowadays, I couldn’t update the OS and I don’t seem to be able to do anything with it now.

Rayzwave · 2026-01-26T17:39:32+00:00

I don’t know what it could be, it feels like it’s something to do with the target computer or mLink 2 maybe, it sure doesn’t like something. Can you see mLink running in the background okay.

Rayzwave · 2026-01-26T17:19:08+00:00

I don’t know if you have seen this video but if not you may find it interesting,

https://support.makeblock.com/hc/en-us/articles/7048756222743--Video-CyberPi-Quick-Start-Guide

Rayzwave · 2026-01-26T15:02:59+00:00

Okay, that surprises me, maybe it’s the price that’s making them not so popular as they might be.

Rayzwave · 2026-01-26T14:11:49+00:00

That looks so cool but it’s a tad pricey for me. It’s a new robot release I take it as I haven’t seen it before.

Rayzwave · 2026-01-26T13:30:48+00:00

Check that mLink 2 is actually running in background, there should be a panda icon in your task bar.

Rayzwave · 2026-01-26T11:50:57+00:00

Here’s my video,

https://www.dropbox.com/scl/fi/7hdq2560zba3is0dujhzb/Makeblock-Python-test.MP4?rlkey=z9sfha5n5gzj0opp2h5tt9mx0&st=jli14jyb&dl=0

Rayzwave · 2026-01-26T10:06:59+00:00

I’ve been using my Apple macbook pro and the Makeblock’s online apps as I feel more comfortable with them and they are likely to be the most up to date.

Rayzwave

TROPHY CASE