# EV3 **URL:** https://forum.makecode.com/c/ev3/7.md [Latest](https://forum.makecode.com/latest.md) · [Categories](https://forum.makecode.com/categories.md) · [Tags](https://forum.makecode.com/tags.md) --- ## [About the EV3 category](https://forum.makecode.com/t/about-the-ev3-category/500)
**Author:** [@peli](https://forum.makecode.com/u/peli)\ **Replies:** 0
Support for the LEGO® MINDSTORMS® Education EV3 editor at https://makecode.mindstorms.com . --- ## [New changes](https://forum.makecode.com/t/new-changes/31190)
**Author:** [@THEb0nny](https://forum.makecode.com/u/THEb0nny)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 9:44pm UTC](https://forum.makecode.com/t/new-changes/31190 "2026-09-02T21:44:22Z")
Can someone from the development team review my changes for the pxt-ev3 editor, which have been hanging for a long time. --- ## [Any Support for using a LEGO NXT Temperature Sensor?](https://forum.makecode.com/t/any-support-for-using-a-lego-nxt-temperature-sensor/39264)
**Author:** [@PaulMc](https://forum.makecode.com/u/PaulMc)\ **Replies:** 2\ **Last updated:** [September 2, 2026, 9:44pm UTC](https://forum.makecode.com/t/any-support-for-using-a-lego-nxt-temperature-sensor/39264 "2026-09-02T21:44:17Z")
Hi There, I love the Makecode support for EV3 as I work with Primary aged students and allowing them to use the same platform with micro:bits and EV3 bricks is a real bonus. I have a good collection of NXT sensors that… --- ## [Cloud saves](https://forum.makecode.com/t/cloud-saves/40209)
**Author:** [@Btorretta](https://forum.makecode.com/u/Btorretta)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 9:44pm UTC](https://forum.makecode.com/t/cloud-saves/40209 "2026-09-02T21:44:14Z")
Again thanks for all your hard work and dedication to this project. I’ve also been enjoying the microbit site and as a club leader, it’s been a benefit to be able to use cloud saves, via a federated login. Is there any c… --- ## [Is there any way to have display bigger text like in EV3: Home Edition software?](https://forum.makecode.com/t/is-there-any-way-to-have-display-bigger-text-like-in-ev3-home-edition-software/42041)
**Author:** [@PSMORCPDEV](https://forum.makecode.com/u/PSMORCPDEV)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 9:44pm UTC](https://forum.makecode.com/t/is-there-any-way-to-have-display-bigger-text-like-in-ev3-home-edition-software/42041 "2026-09-02T21:44:09Z")
Tried to find it, nothing --- ## [Strange motor behaviour](https://forum.makecode.com/t/strange-motor-behaviour/35135)
**Author:** [@hansagia](https://forum.makecode.com/u/hansagia)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 6:50pm UTC](https://forum.makecode.com/t/strange-motor-behaviour/35135 "2026-09-02T18:50:33Z")
If I run motors.largeC.run(50, 0, MoveUnit.Degrees) then the motor runs forever. Also after reset. Why is this happening? The normal behaviour should be that nothing happens. --- ## [My introduction and GyroBoy code copy/paste](https://forum.makecode.com/t/my-introduction-and-gyroboy-code-copy-paste/5755)
**Author:** [@gyroboy](https://forum.makecode.com/u/gyroboy)\ **Replies:** 6\ **Last updated:** [September 2, 2026, 6:50pm UTC](https://forum.makecode.com/t/my-introduction-and-gyroboy-code-copy-paste/5755 "2026-09-02T18:50:24Z")
I wanted to say hello from Oregon. I’m using MakeCode because the Lego EV3 software released in 2012 (block coding with wires) does not work on a Chromebook. ( the Chromebook extension lacks variables and most essent… --- ## [Control one EV3 with another EV3](https://forum.makecode.com/t/control-one-ev3-with-another-ev3/544)
**Author:** [@sofiania](https://forum.makecode.com/u/sofiania)\ **Replies:** 3\ **Last updated:** [September 2, 2026, 6:50pm UTC](https://forum.makecode.com/t/control-one-ev3-with-another-ev3/544 "2026-09-02T18:50:18Z")
Hi! I wonder if there’s going to be a “Radio” category for EV3 makecode, so that you can use one brick to control the other? I know it’s possible by bluetooth in lego’s own programming environment, but can it be develope… --- ## [Makecode/Bluetooth?](https://forum.makecode.com/t/makecode-bluetooth/12924)
**Author:** [@FRM](https://forum.makecode.com/u/FRM)\ **Replies:** 1\ **Last updated:** [September 2, 2026, 6:50pm UTC](https://forum.makecode.com/t/makecode-bluetooth/12924 "2026-09-02T18:50:14Z")
Has anyone had luck with the bluetooth connectivity? My classroom computers have usb bluetooth dongles, and the “serial port over bluetooth” doesn’t show up as an option. Trying to use each COM port gives me an error m… --- ## [Beta Extension: Broadcast](https://forum.makecode.com/t/beta-extension-broadcast/1127)
**Author:** [@Nelson](https://forum.makecode.com/u/Nelson)\ **Replies:** 3\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/beta-extension-broadcast/1127 "2026-09-01T20:33:44Z")
Is this “broadcast” meant to be between multiple EV3 Bricks, or only between threads on the same EV3 Brick? --- ## [Setting motors inverted](https://forum.makecode.com/t/setting-motors-inverted/886)
**Author:** [@Jeff](https://forum.makecode.com/u/Jeff)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/setting-motors-inverted/886 "2026-09-01T20:33:40Z")
We noticed that if you call motors.largeBC.setInverted(true); This does not invert the motors.largeB/C.angle() values. Seems like it would be a good idea if the setInverted also inverted the value so it counts up inste… --- ## [Makecode Ev3 Brick with nxt sensors](https://forum.makecode.com/t/makecode-ev3-brick-with-nxt-sensors/600)
**Author:** [@RasPiBot](https://forum.makecode.com/u/RasPiBot)\ **Replies:** 6\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/makecode-ev3-brick-with-nxt-sensors/600 "2026-09-01T20:33:30Z")
Hello MakeCode community, I’m a computer science teacher. This year, we are using MakeCode for the first time. During the last 10 years, we used Lejos, Mindsqualls and Monobrick. We switched for MakeCode because of the … --- ## [Bug: can't change Gyro heading in emulator](https://forum.makecode.com/t/bug-cant-change-gyro-heading-in-emulator/563)
**Author:** [@Jeff](https://forum.makecode.com/u/Jeff)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/bug-cant-change-gyro-heading-in-emulator/563 "2026-09-01T20:33:24Z")
I would like to be able to control the current gyro angle value in the emulator. I see that there is slider that I can grab but I can’t do anything with it. I would love to be able to fine tune my heading algorithm but… --- ## [EV3 Running Program on Download?](https://forum.makecode.com/t/ev3-running-program-on-download/614)
**Author:** [@mifish3474](https://forum.makecode.com/u/mifish3474)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/ev3-running-program-on-download/614 "2026-09-01T20:33:23Z")
Is there any way to prevent the code from running on the EV3 as soon as it downloads? I sometimes see this happening and sometimes not. This could be dangerous for the equipment as it could cause it to roll right off th… --- ## [Motors reset() not consistently clearingCounts](https://forum.makecode.com/t/motors-reset-not-consistently-clearingcounts/873)
**Author:** [@Jeff](https://forum.makecode.com/u/Jeff)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/motors-reset-not-consistently-clearingcounts/873 "2026-09-01T20:33:11Z")
We were having issues calling some custom gyro code in a series of calls where it seemed like the code was just being skipped some times. This was very frustrating to the students. I reviewed the code and then did some… --- ## [Why do i get this error? Argument of type ‘() =\> number’ is not assignable to parameter of type ‘number’](https://forum.makecode.com/t/why-do-i-get-this-error-argument-of-type-number-is-not-assignable-to-parameter-of-type-number/26331)
**Author:** [@Samsano](https://forum.makecode.com/u/Samsano)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/why-do-i-get-this-error-argument-of-type-number-is-not-assignable-to-parameter-of-type-number/26331 "2026-09-01T20:33:08Z")
Argument of type ‘() =\> number’ is not assignable to parameter of type ‘number’. Heres the codeblock related: function percentage(partialValue: number, totalValue: number) { return (100 \* partialValue) / totalVal… --- ## [How can I go back to the previous firmware?](https://forum.makecode.com/t/how-can-i-go-back-to-the-previous-firmware/11043)
**Author:** [@TMan](https://forum.makecode.com/u/TMan)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/how-can-i-go-back-to-the-previous-firmware/11043 "2026-09-01T20:33:04Z")
In order to use Makecode, I updated the firmware of all our EV3-bricks to 1.10E. Only then did I find out, that we can’t use them any more with the original LEGO EV3 programming interface. The LEGO EV3 programming inter… --- ## [Copy file failed to EV3 from chromebook](https://forum.makecode.com/t/copy-file-failed-to-ev3-from-chromebook/13486)
**Author:** [@dalekprime](https://forum.makecode.com/u/dalekprime)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:33pm UTC](https://forum.makecode.com/t/copy-file-failed-to-ev3-from-chromebook/13486 "2026-09-01T20:33:02Z")
Hi Has anyone solved why you cant copy a file to an EV3 from a chromebook? We a re a school with google admin controlling the org. Thanks Andrew --- ## [Updating FLL Challenge on Makecode?](https://forum.makecode.com/t/updating-fll-challenge-on-makecode/10565)
**Author:** [@SASRoboticsv1](https://forum.makecode.com/u/SASRoboticsv1)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:32pm UTC](https://forum.makecode.com/t/updating-fll-challenge-on-makecode/10565 "2026-09-01T20:32:56Z")
Just wondering if there were any plans to update Makecode for the new FLL Challenge this year. City Shaper was done 2 years ago, Cargo Connect would be cool to see. --- ## [Thanks for MakeCode](https://forum.makecode.com/t/thanks-for-makecode/1075)
**Author:** [@mkrdroid](https://forum.makecode.com/u/mkrdroid)\ **Replies:** 2\ **Last updated:** [September 1, 2026, 8:31pm UTC](https://forum.makecode.com/t/thanks-for-makecode/1075 "2026-09-01T20:31:52Z")
My rookie team of 6th graders got a respectable score of 305 points in our local FLL competition which was decent but a little short of the winning team. I would like to thank the developers for their hard work. We will … --- ## [Display Custom Image](https://forum.makecode.com/t/display-custom-image/1753)
**Author:** [@wimberlyw](https://forum.makecode.com/u/wimberlyw)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:20pm UTC](https://forum.makecode.com/t/display-custom-image/1753 "2026-09-01T20:20:08Z")
Is there a way to import a custom image to display on the EV3 screen? Like on the Mindstorms program you can draw an image on the screen. Is that possible with make code? --- ## [Is MakeCode EV3 alive](https://forum.makecode.com/t/is-makecode-ev3-alive/2554)
**Author:** [@OliviliK](https://forum.makecode.com/u/OliviliK)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:20pm UTC](https://forum.makecode.com/t/is-makecode-ev3-alive/2554 "2026-09-01T20:20:05Z")
I was planning to use MakeCode EV3 in this year LEGO FLL competition, but I have a concern that Microsoft is not committed to support EV3 now and in future. --- ## [How to convert ev3 files into MakeCode Blocks](https://forum.makecode.com/t/how-to-convert-ev3-files-into-makecode-blocks/12971)
**Author:** [@Synapse](https://forum.makecode.com/u/Synapse)\ **Replies:** 1\ **Last updated:** [September 1, 2026, 8:20pm UTC](https://forum.makecode.com/t/how-to-convert-ev3-files-into-makecode-blocks/12971 "2026-09-01T20:20:02Z")
We have some of our builds program into the .ev3 extension file. Now that we have the ev3 classroom app, is there a way to download the code into the block-base coding. Thank you, Maria Lee --- ## [Lego ev3 with makecode](https://forum.makecode.com/t/lego-ev3-with-makecode/8498)
**Author:** [@sappington](https://forum.makecode.com/u/sappington)\ **Replies:** 2\ **Last updated:** [September 1, 2026, 8:20pm UTC](https://forum.makecode.com/t/lego-ev3-with-makecode/8498 "2026-09-01T20:20:00Z")
Our school just got new Dell Chrome 3100 2in1 Chromebooks. Makecode Lego Mindstorms has always worked great with all of our older Chromebooks. I am using a usb cable to hook up the chromebook to the brick. The problem… --- ## [Can I download the codes to EV3 via bluetooth?](https://forum.makecode.com/t/can-i-download-the-codes-to-ev3-via-bluetooth/501)
**Author:** [@hgchcw](https://forum.makecode.com/u/hgchcw)\ **Replies:** 37\ **Last updated:** [September 1, 2026, 8:19pm UTC](https://forum.makecode.com/t/can-i-download-the-codes-to-ev3-via-bluetooth/501 "2026-09-01T20:19:57Z")
After writing the codes in EV3 MakeCode, can I download the codes to EV3 via bluetooth but not USB cable? Thanks, Raymond --- ## [Change Brick name](https://forum.makecode.com/t/change-brick-name/1211)
**Author:** [@rockvegas](https://forum.makecode.com/u/rockvegas)\ **Replies:** 3\ **Last updated:** [September 1, 2026, 8:19pm UTC](https://forum.makecode.com/t/change-brick-name/1211 "2026-09-01T20:19:46Z")
Can anybody tell me how I can change the EV3 brickname, using Makecode? Thanks --- ## [I badly need to use the NXT Sound Sensor](https://forum.makecode.com/t/i-badly-need-to-use-the-nxt-sound-sensor/3169)
**Author:** [@lokus1980](https://forum.makecode.com/u/lokus1980)\ **Replies:** 7\ **Last updated:** [August 25, 2026, 11:46pm UTC](https://forum.makecode.com/t/i-badly-need-to-use-the-nxt-sound-sensor/3169 "2026-08-25T23:46:57Z")
I bought a set of Ev3 Mindstorms for my son. We started building robots. I read on the Internet that we can use NXT sensors with Ev3. I bought an NXT sound sensor to build a robot which responds to sounds. The sensor ha… --- ## [Community fork of the MakeCode EV3 editor](https://forum.makecode.com/t/community-fork-of-the-makecode-ev3-editor/43677)
**Author:** [@PetteriAimonen](https://forum.makecode.com/u/PetteriAimonen)\ **Replies:** 11\ **Last updated:** [May 22, 2026, 8:01pm UTC](https://forum.makecode.com/t/community-fork-of-the-makecode-ev3-editor/43677 "2026-05-22T20:01:20Z")
Microsoft is no longer actively maintaining MakeCode for EV3 (see PR#1052). THEb0nny and me have collaborated to create this project with a site hosted on GitHub pages: https://github.com/pxt-ev3-community/ https://pxt… --- ## [Issue with Makecode Mindstorms uf2 files](https://forum.makecode.com/t/issue-with-makecode-mindstorms-uf2-files/42751)
**Author:** [@profshaffer](https://forum.makecode.com/u/profshaffer)\ **Replies:** 2\ **Last updated:** [April 8, 2026, 6:01pm UTC](https://forum.makecode.com/t/issue-with-makecode-mindstorms-uf2-files/42751 "2026-04-08T18:01:34Z")
I’ve been using Makecode with Mindstorms for years in one of the classes I teach. I’m familiar with all of the usual issues… brick won’t connect to the computer, EV3 folder won’t appear, etc. and I know that a firmware f… --- ## [Feature request for ev3](https://forum.makecode.com/t/feature-request-for-ev3/36228)
**Author:** [@Btorretta](https://forum.makecode.com/u/Btorretta)\ **Replies:** 2\ **Last updated:** [March 23, 2026, 9:49pm UTC](https://forum.makecode.com/t/feature-request-for-ev3/36228 "2026-03-23T21:49:25Z")
@richard apologies for not knowing if this is possible. After using the makecode site with students, they generally love it but they all get hung up on the same spot, file transfer via their Chromebook. I saw you helping… [Next page](https://forum.makecode.com/c/ev3/7.md?page=1)