# EV3 **URL:** https://forum.makecode.com/c/ev3/7.md?page=1 [Latest](https://forum.makecode.com/latest.md) · [Categories](https://forum.makecode.com/categories.md) · [Tags](https://forum.makecode.com/tags.md) **Page:** 2 --- ## [Reviving EV3 for intro to electricity; are there any options other than OFDL for battery state?](https://forum.makecode.com/t/reviving-ev3-for-intro-to-electricity-are-there-any-options-other-than-ofdl-for-battery-state/32959)
**Author:** [@msw4chl](https://forum.makecode.com/u/msw4chl)\ **Replies:** 1\ **Last updated:** [March 31, 2025, 6:03pm UTC](https://forum.makecode.com/t/reviving-ev3-for-intro-to-electricity-are-there-any-options-other-than-ofdl-for-battery-state/32959 "2025-03-31T18:03:15Z")
Using some old EV3s in 'bots for an intro to electricity session. One key task: reading battery voltage, preferably with current, too. The OFDL tools worked years ago, but not on V1.10E. Does anyone have any alternative… --- ## [An Exploring Post is looking at using EV3 bots and sensors for introduction to automotive sensors](https://forum.makecode.com/t/an-exploring-post-is-looking-at-using-ev3-bots-and-sensors-for-introduction-to-automotive-sensors/32979)
**Author:** [@msw4chl](https://forum.makecode.com/u/msw4chl)\ **Replies:** 0\ **Last updated:** [January 5, 2025, 8:50pm UTC](https://forum.makecode.com/t/an-exploring-post-is-looking-at-using-ev3-bots-and-sensors-for-introduction-to-automotive-sensors/32979 "2025-01-05T20:50:07Z")
Has anyone used Mindspring EV3 sensors to introduce their function as automotive tech equivalents? An Exploring Post is meeting at a Tech College and has an interest in doing this. Any links or references appreciated. --- ## [Cant find v1 1.10e to update ev3 1.09h is the only one that can be fond](https://forum.makecode.com/t/cant-find-v1-1-10e-to-update-ev3-1-09h-is-the-only-one-that-can-be-fond/627)
**Author:** [@MAxie](https://forum.makecode.com/u/MAxie)\ **Replies:** 5\ **Last updated:** [December 5, 2024, 2:49pm UTC](https://forum.makecode.com/t/cant-find-v1-1-10e-to-update-ev3-1-09h-is-the-only-one-that-can-be-fond/627 "2024-12-05T14:49:10Z")
cant find v1 1.10e to update ev3 1.09h is the only one that can be find. how can i find it? --- ## [Why is my square growing?](https://forum.makecode.com/t/why-is-my-square-growing/27863)
**Author:** [@TruestLegend](https://forum.makecode.com/u/TruestLegend)\ **Replies:** 4\ **Last updated:** [May 5, 2024, 3:41am UTC](https://forum.makecode.com/t/why-is-my-square-growing/27863 "2024-05-05T03:41:10Z")
I am trying to code flappy bird for the EV3 mindstorms and am trying to make pipes go across the screen, but the pipe is growing while going over the screen, can someone help me? let scroll = 0 let pipe = image.create(… --- ## [Functions with parameters?](https://forum.makecode.com/t/functions-with-parameters/26288)
**Author:** [@Vegz78](https://forum.makecode.com/u/Vegz78)\ **Replies:** 4\ **Last updated:** [February 15, 2024, 12:51am UTC](https://forum.makecode.com/t/functions-with-parameters/26288 "2024-02-15T00:51:09Z")
Hi, I cannot figure out how to define functions with parameters in https://makecode.mindstorms.com. Not even in the text based JavaScript tab. Is this impossible or a good reason for this, or is it just a small fix awa… --- ## [Makecode for spike prime?](https://forum.makecode.com/t/makecode-for-spike-prime/992)
**Author:** [@Jeff](https://forum.makecode.com/u/Jeff)\ **Replies:** 10\ **Last updated:** [January 23, 2024, 7:55pm UTC](https://forum.makecode.com/t/makecode-for-spike-prime/992 "2024-01-23T19:55:14Z")
Will there be a makecode for spike prime? I would love to get a spike prime set to start playing with when available but not a fan of scratch. --- ## [Github token login not working](https://forum.makecode.com/t/github-token-login-not-working/24974)
**Author:** [@TruestLegend](https://forum.makecode.com/u/TruestLegend)\ **Replies:** 0\ **Last updated:** [December 11, 2023, 5:34pm UTC](https://forum.makecode.com/t/github-token-login-not-working/24974 "2023-12-11T17:34:36Z")
I want to make an extension, but when i generate a token (with “repo” and “public\_repo”) it says: ‘Invalid token format’. Can someone help me or tell me why it isn’t working? --- ## [Using the makecode to program nxt robots](https://forum.makecode.com/t/using-the-makecode-to-program-nxt-robots/13402)
**Author:** [@egarner](https://forum.makecode.com/u/egarner)\ **Replies:** 0\ **Last updated:** [May 2, 2022, 4:51pm UTC](https://forum.makecode.com/t/using-the-makecode-to-program-nxt-robots/13402 "2022-05-02T16:51:30Z")
Using makecode for nxt programming on a chrome book --- ## [Connect Makecode via Bluetooth does not work](https://forum.makecode.com/t/connect-makecode-via-bluetooth-does-not-work/11668)
**Author:** [@tiestapistics](https://forum.makecode.com/u/tiestapistics)\ **Replies:** 0\ **Last updated:** [January 10, 2022, 6:22pm UTC](https://forum.makecode.com/t/connect-makecode-via-bluetooth-does-not-work/11668 "2022-01-10T18:22:36Z")
Hi, I am aware that it is only a BETA feature. But unfortunately, the EV3 cannot be connected via Bluetooth when using https://makecode.mindstorms.com/. In the JavaScript Console the following error is displayed: Faile… --- ## [EV3 robot won't go straight](https://forum.makecode.com/t/ev3-robot-wont-go-straight/11033)
**Author:** [@TMan](https://forum.makecode.com/u/TMan)\ **Replies:** 2\ **Last updated:** [November 29, 2021, 5:15pm UTC](https://forum.makecode.com/t/ev3-robot-wont-go-straight/11033 "2021-11-29T17:15:51Z")
I’ve installed the two large motors and fixed wheels with tires on them. When I instruct the EV3 to go straigt ahead by coding run lage motors at 100% for 3 rotations it doesn’t go straight, but moves along a wiggly l… --- ## [Updates needed](https://forum.makecode.com/t/updates-needed/6913)
**Author:** [@THEb0nny](https://forum.makecode.com/u/THEb0nny)\ **Replies:** 4\ **Last updated:** [November 29, 2021, 5:15pm UTC](https://forum.makecode.com/t/updates-needed/6913 "2021-11-29T17:15:48Z")
Ev3 needs updates. I2c stopped working. Hitechnic color sensor version 2 does not work. Bluetooth transmission stopped working! Newer versions of ptx already have the ability to convert values from a function, but ev3… --- ## [JS to EV3 Compiler](https://forum.makecode.com/t/js-to-ev3-compiler/10891)
**Author:** [@QuirkyCort](https://forum.makecode.com/u/QuirkyCort)\ **Replies:** 0\ **Last updated:** [November 15, 2021, 4:42pm UTC](https://forum.makecode.com/t/js-to-ev3-compiler/10891 "2021-11-15T16:42:30Z")
I’m the developer of GearsBot (gears.aposteriori.com.sg), and I’m looking into how I can output binary that’s compatible with the stock EV3 firmware. Currently, GearsBot can only output ev3dev compatible Python. Generat… --- ## [EV3 Device Manager fail](https://forum.makecode.com/t/ev3-device-manager-fail/749)
**Author:** [@Walt.White](https://forum.makecode.com/u/Walt.White)\ **Replies:** 3\ **Last updated:** [September 27, 2021, 3:30pm UTC](https://forum.makecode.com/t/ev3-device-manager-fail/749 "2021-09-27T15:30:25Z")
Anyone else having problems using the EV3 Device Manager web page used to update firmware? I get this error about needing to download and install, and it’s already installed. This is on both my desktop and my laptop. … --- ## [Python support for EV3 MakeCode?](https://forum.makecode.com/t/python-support-for-ev3-makecode/8430)
**Author:** [@justforthesakeofEV3](https://forum.makecode.com/u/justforthesakeofEV3)\ **Replies:** 1\ **Last updated:** [August 11, 2021, 3:49pm UTC](https://forum.makecode.com/t/python-support-for-ev3-makecode/8430 "2021-08-11T15:49:07Z")
Hi, Does anyone know if there is going to be python support for Lego Mindstorms EV3 on MakeCode or is it going to be only Blockly and JavaScript for a long time to come. I am more comfortable with Python as I am learnin… --- ## [Error downloading program on MakeCode via Bluetooth](https://forum.makecode.com/t/error-downloading-program-on-makecode-via-bluetooth/8330)
**Author:** [@jordmac](https://forum.makecode.com/u/jordmac)\ **Replies:** 0\ **Last updated:** [May 26, 2021, 7:56pm UTC](https://forum.makecode.com/t/error-downloading-program-on-makecode-via-bluetooth/8330 "2021-05-26T19:56:24Z")
Hi, I want to download my program from MakeCode to the EV3 brick via Bluetooth. I have enabled the experimental features as stated on the following page. https://makecode.mindstorms.com/bluetooth After I select Bluetoot… --- ## [Lego Mindstorms Robot Inventor (EV4?) support](https://forum.makecode.com/t/lego-mindstorms-robot-inventor-ev4-support/5432)
**Author:** [@itaibh](https://forum.makecode.com/u/itaibh)\ **Replies:** 2\ **Last updated:** [March 19, 2021, 4:28pm UTC](https://forum.makecode.com/t/lego-mindstorms-robot-inventor-ev4-support/5432 "2021-03-19T16:28:28Z")
Hello, I’m looking for a way to use the makecode.mindstorms.com work for Robot Inventor set. I saw someone referring to it as EV4. It quite different in its looks and connections but quite the same in its abilities. An… --- ## [Issues with chromebook download](https://forum.makecode.com/t/issues-with-chromebook-download/3990)
**Author:** [@sbrodsky](https://forum.makecode.com/u/sbrodsky)\ **Replies:** 4\ **Last updated:** [February 22, 2021, 5:43pm UTC](https://forum.makecode.com/t/issues-with-chromebook-download/3990 "2021-02-22T17:43:28Z")
i can download from makecode, but can’t copy the file over to the brick. i get this error message "copy operation failed. the file could not be modified. --- ## [Tutorial Issues](https://forum.makecode.com/t/tutorial-issues/6143)
**Author:** [@lwieszczyk](https://forum.makecode.com/u/lwieszczyk)\ **Replies:** 2\ **Last updated:** [February 19, 2021, 3:37pm UTC](https://forum.makecode.com/t/tutorial-issues/6143 "2021-02-19T15:37:29Z")
I have students using the EV3 MakeCode to learn concepts while we are in online learning. The issue is some students are not able to reopen the tutorial where they previously left off and it starts a new project from the… --- ## [Pen arm tutorial](https://forum.makecode.com/t/pen-arm-tutorial/5696)
**Author:** [@perryplatypus](https://forum.makecode.com/u/perryplatypus)\ **Replies:** 0\ **Last updated:** [January 22, 2021, 6:55pm UTC](https://forum.makecode.com/t/pen-arm-tutorial/5696 "2021-01-22T18:55:52Z")
hello i wonder if anyone has some cool tutorials for pen arm. I don’t know if it’s possible to do something more advanced than drawing an arc. I will be grateful for any help. --- ## [Sending code via bluetooth to EV3](https://forum.makecode.com/t/sending-code-via-bluetooth-to-ev3/452)
**Author:** [@legocoder](https://forum.makecode.com/u/legocoder)\ **Replies:** 5\ **Last updated:** [January 10, 2021, 10:52pm UTC](https://forum.makecode.com/t/sending-code-via-bluetooth-to-ev3/452 "2021-01-10T22:52:57Z")
Hi, I am a teacher using new EV3 sets. I have found MakeCode a vast improvement over the Ev3 programming software, but I need a way to send the programs to the robots via bluetooth, preferably from iPads. MakeCode runs … --- ## [Connecting EV3 to iMac running 10.15.7 (Catalina)](https://forum.makecode.com/t/connecting-ev3-to-imac-running-10-15-7-catalina/5269)
**Author:** [@rbnpi](https://forum.makecode.com/u/rbnpi)\ **Replies:** 1\ **Last updated:** [January 10, 2021, 10:52pm UTC](https://forum.makecode.com/t/connecting-ev3-to-imac-running-10-15-7-catalina/5269 "2021-01-10T22:52:46Z")
I have been trying without success to pair my iMac with an EV3 brick. I go through the process, and check that the pair codes are both 0000. It connects briefly for a few seconds then disconnects. Anyone able to help? Ru… --- ## [EV3 brick: Need help for schematic for connections of 16p FPC cable to replacement 1.8" LCD](https://forum.makecode.com/t/ev3-brick-need-help-for-schematic-for-connections-of-16p-fpc-cable-to-replacement-1-8-lcd/5468)
**Author:** [@JT1977](https://forum.makecode.com/u/JT1977)\ **Replies:** 1\ **Last updated:** [January 10, 2021, 8:48pm UTC](https://forum.makecode.com/t/ev3-brick-need-help-for-schematic-for-connections-of-16p-fpc-cable-to-replacement-1-8-lcd/5468 "2021-01-10T20:48:16Z")
Hi, recently my EV3 Brick LCD just went blank and no display at all. The rest of the brick seems to function properly and the old codes still works without the display. Hence, I reckon I just need to replace the LCD scre… --- ## [Font size](https://forum.makecode.com/t/font-size/1533)
**Author:** [@wimberlyw](https://forum.makecode.com/u/wimberlyw)\ **Replies:** 1\ **Last updated:** [December 7, 2020, 8:07pm UTC](https://forum.makecode.com/t/font-size/1533 "2020-12-07T20:07:14Z")
Any way to adjust for font size on the brick? I’m trying to make some distance learning videos but the only font option I can find on Makecode is soo small. Thanks! --- ## [EV3 sound -How to play two notes at the same time?](https://forum.makecode.com/t/ev3-sound-how-to-play-two-notes-at-the-same-time/4079)
**Author:** [@BillM-NT](https://forum.makecode.com/u/BillM-NT)\ **Replies:** 4\ **Last updated:** [October 26, 2020, 8:38pm UTC](https://forum.makecode.com/t/ev3-sound-how-to-play-two-notes-at-the-same-time/4079 "2020-10-26T20:38:32Z")
Hi does anyone know how to program the EV3 to play two notes/sounds at the same time similar to on a piano? Thanks. --- ## [Firmware 1.10E Unstable](https://forum.makecode.com/t/firmware-1-10e-unstable/1197)
**Author:** [@fishiversity](https://forum.makecode.com/u/fishiversity)\ **Replies:** 2\ **Last updated:** [October 24, 2020, 1:44pm UTC](https://forum.makecode.com/t/firmware-1-10e-unstable/1197 "2020-10-24T13:44:34Z")
Hi EV3 team - I’m having lots of issues with the 1.10E firmware now that I have launched this in my classroom. Every bell (45 minutes), 2-3 of my 28 bricks will completely stop connecting to the PC. No EV3 drive, nothi… --- ## [Custom images on Makecode](https://forum.makecode.com/t/custom-images-on-makecode/603)
**Author:** [@IxmaelRG](https://forum.makecode.com/u/IxmaelRG)\ **Replies:** 4\ **Last updated:** [October 18, 2020, 7:55pm UTC](https://forum.makecode.com/t/custom-images-on-makecode/603 "2020-10-18T19:55:28Z")
Hi, I was just fiddling around MakeCode and yeah, I was wondering how to create custom images on Makecode. Just making a pixel or a square or a circle whenever I want to in the screen would help me. After that, I can … --- ## [Rotation Sensor Measurement](https://forum.makecode.com/t/rotation-sensor-measurement/3811)
**Author:** [@acslego](https://forum.makecode.com/u/acslego)\ **Replies:** 0\ **Last updated:** [October 8, 2020, 1:47am UTC](https://forum.makecode.com/t/rotation-sensor-measurement/3811 "2020-10-08T01:47:06Z")
How do you measure the number of rotations within a “While” loop logic? For example, I’d like to follow a line for “15” inches, which requires access to the rotation sensor. We can access an “angle” reading, but not a … --- ## [Tutorial for the color sorter](https://forum.makecode.com/t/tutorial-for-the-color-sorter/566)
**Author:** [@sofiania](https://forum.makecode.com/u/sofiania)\ **Replies:** 4\ **Last updated:** [March 8, 2020, 4:03pm UTC](https://forum.makecode.com/t/tutorial-for-the-color-sorter/566 "2020-03-08T16:03:21Z")
Hi! I wonder if anyone has a tutorial for the color sorter where you save the colors and where its going in a list and then sort it to different cups after all colors are scanned. (Like theexisting example/tutorial in La… --- ## [Change Project Name](https://forum.makecode.com/t/change-project-name/1242)
**Author:** [@OliviliK](https://forum.makecode.com/u/OliviliK)\ **Replies:** 0\ **Last updated:** [February 20, 2020, 3:04am UTC](https://forum.makecode.com/t/change-project-name/1242 "2020-02-20T03:04:27Z")
Change Project Name After a project is saved, its name cannot be changed. This fundamental feature is available for Microbit but not for Mindstorms EV3. --- ## [Latest Brick Versions. 1.10E Troubleshooting](https://forum.makecode.com/t/latest-brick-versions-1-10e-troubleshooting/1156)
**Author:** [@karl.easton](https://forum.makecode.com/u/karl.easton)\ **Replies:** 2\ **Last updated:** [February 9, 2020, 2:36am UTC](https://forum.makecode.com/t/latest-brick-versions-1-10e-troubleshooting/1156 "2020-02-09T02:36:55Z")
Sydney calling. Hello world. Lets talk Ev3 Device manager and MakeCode. I can’t get either one of them to upgrade my firmware past V1.09E. MakeCode will not operate without 1.10 E or higher. When I connect up to Device … [Previous page](https://forum.makecode.com/c/ev3/7.md) [Next page](https://forum.makecode.com/c/ev3/7.md?page=2)