# \#core **URL:** https://community.particle.io/tag/core/13.md [Latest](https://community.particle.io/latest.md) · [Categories](https://community.particle.io/categories.md) · [Tags](https://community.particle.io/tags.md) --- ## [Connecting Particle (Spark Core) to Blynk Error](https://community.particle.io/t/connecting-particle-spark-core-to-blynk-error/65353)
**Author:** [@kitale](https://community.particle.io/u/kitale)\ **Replies:** 2\ **Last updated:** [September 6, 2023, 11:20am UTC](https://community.particle.io/t/connecting-particle-spark-core-to-blynk-error/65353 "2023-09-06T11:20:57Z")
After the introduction of the New Blueprint with Particle! on 31st August 2023, which helps connect Particle devices to Blynk, I tried it out but I am getting errors when compiling the code generated by the Blueprint. I’… --- ## [Connect Core to Cloud using CLI v2.16](https://community.particle.io/t/connect-core-to-cloud-using-cli-v2-16/64020)
**Author:** [@Raoden](https://community.particle.io/u/Raoden)\ **Replies:** 4\ **Last updated:** [February 24, 2023, 1:08pm UTC](https://community.particle.io/t/connect-core-to-cloud-using-cli-v2-16/64020 "2023-02-24T13:08:58Z")
Hello, I have tried restoring core with CLI v2.16, when i try to do factory rest with particle flash --factory tinker Failed to flash tinker: Permission Denied But i can flash it with tinker firmware files using … --- ## [Resurrecting a Core](https://community.particle.io/t/resurrecting-a-core/63686)
**Author:** [@zachmorris](https://community.particle.io/u/zachmorris)\ **Replies:** 2\ **Last updated:** [December 12, 2022, 4:22pm UTC](https://community.particle.io/t/resurrecting-a-core/63686 "2022-12-12T16:22:50Z")
I’m trying to resurrect an old particle core. The issue I’m having is that I can’t get the device to connect to wifi, and i can’t update the device via usb (from the CLI). I’ve tried: ❯ particle doctor The Device Doct… --- ## [Core v1 Setup Issues](https://community.particle.io/t/core-v1-setup-issues/62204)
**Author:** [@cineris](https://community.particle.io/u/cineris)\ **Replies:** 1\ **Last updated:** [March 11, 2022, 4:28am UTC](https://community.particle.io/t/core-v1-setup-issues/62204 "2022-03-11T04:28:34Z")
I received a Core years ago at a developer conference, and I recently found it during a move. I’ve got a project in mind that I think it’d be perfect for, but I can’t seem to get it up and running. I can manage to conne… --- ## [Re-connecting my old Spark Core](https://community.particle.io/t/re-connecting-my-old-spark-core/61742)
**Author:** [@blind](https://community.particle.io/u/blind)\ **Replies:** 2\ **Last updated:** [December 27, 2021, 7:03pm UTC](https://community.particle.io/t/re-connecting-my-old-spark-core/61742 "2021-12-27T19:03:31Z")
I found an old robot I made that uses the old Spark Core (now renamed Photon I believe?) and I would like to connect it to a new WiFi IP. The Core was programmed to not connect to the cloud with #include "spark\_disable\_… --- ## [Original Spark Core revival](https://community.particle.io/t/original-spark-core-revival/57169)
**Author:** [@Phantomski](https://community.particle.io/u/Phantomski)\ **Replies:** 13\ **Last updated:** [November 18, 2020, 7:18pm UTC](https://community.particle.io/t/original-spark-core-revival/57169 "2020-11-18T19:18:29Z")
Hi everyone, I’m one of the original backers on Kickstarter and very happy to see the progress since and building of a great company and community. I’ve decided to use some of my bottom drawer stuff for few tinkering p… --- ## [Workbench local compile and flash for Core platform - Is this possible?](https://community.particle.io/t/workbench-local-compile-and-flash-for-core-platform-is-this-possible/56650)
**Author:** [@planetdaz](https://community.particle.io/u/planetdaz)\ **Replies:** 13\ **Last updated:** [June 15, 2020, 7:04pm UTC](https://community.particle.io/t/workbench-local-compile-and-flash-for-core-platform-is-this-possible/56650 "2020-06-15T19:04:38Z")
I have a few of the old Spark Core devices that I need to be able to compile and flash without internet. I have downloaded and installed the VS Code workbench extensions and can’t figure out how to get this working. I h… --- ## [MPU6050 Cloud compile and local compile both fail for Core](https://community.particle.io/t/mpu6050-cloud-compile-and-local-compile-both-fail-for-core/55986)
**Author:** [@sagargp](https://community.particle.io/u/sagargp)\ **Replies:** 6\ **Last updated:** [May 6, 2020, 8:25am UTC](https://community.particle.io/t/mpu6050-cloud-compile-and-local-compile-both-fail-for-core/55986 "2020-05-06T08:25:43Z")
I found my old Spark Core and started playing around with it again. I’m trying to build a simple MPU6050 example to get started, but I can’t get it to build using any method. My code includes MPU6050\_6Axis\_MotionApps20.… --- ## [Found old spark core 1.0](https://community.particle.io/t/found-old-spark-core-1-0/54191)
**Author:** [@geofflittle](https://community.particle.io/u/geofflittle)\ **Replies:** 1\ **Last updated:** [January 14, 2020, 8:21pm UTC](https://community.particle.io/t/found-old-spark-core-1-0/54191 "2020-01-14T20:21:42Z")
Hey all! I was gifted 2 x Spark core v1.0 (CC3000MOD) 1 x Spark core relay shield v2.0.1 1 x Spark core shield shield v2.0.1 Maybe 5 or 6 years ago and am just getting around to looking into playing with them :crazy\_… --- ## [SWD Error - D7 dim LED](https://community.particle.io/t/swd-error-d7-dim-led/54174)
**Author:** [@DanielR](https://community.particle.io/u/DanielR)\ **Replies:** 0\ **Last updated:** [January 11, 2020, 10:22pm UTC](https://community.particle.io/t/swd-error-d7-dim-led/54174 "2020-01-11T22:22:18Z")
I am currently trying to revive my Particle core (Also know as spark core) because i got the dim D7 led problem. I don’t have a particle programmer but i do have a photon so i used this git library: https://github.com/m-… --- ## [Trying to upgrade original Core (Kickstarted ed) to latest Device OS](https://community.particle.io/t/trying-to-upgrade-original-core-kickstarted-ed-to-latest-device-os/53192)
**Author:** [@guiambros](https://community.particle.io/u/guiambros)\ **Replies:** 2\ **Last updated:** [November 25, 2019, 6:36am UTC](https://community.particle.io/t/trying-to-upgrade-original-core-kickstarted-ed-to-latest-device-os/53192 "2019-11-25T06:36:52Z")
I’m trying to update the firmware version of an original Core from the initial Kickstarter campaign. I was able to set it up using particle doctor and everything is working fine, and I can compile and send programs OTA. … --- ## [Using old Core's - how to program them?](https://community.particle.io/t/using-old-cores-how-to-program-them/52378)
**Author:** [@acacio](https://community.particle.io/u/acacio)\ **Replies:** 5\ **Last updated:** [September 27, 2019, 9:15pm UTC](https://community.particle.io/t/using-old-cores-how-to-program-them/52378 "2019-09-27T21:15:59Z")
Hi, I have about ~20 original Cores and I’m at a loss at how to claim the devices and upgrade the OS? Are they still supported in any way? The iOS app can’t see them and there isn’t an option to choose Cores. THe docu… --- ## [Building an app that used to work on a Spark Core](https://community.particle.io/t/building-an-app-that-used-to-work-on-a-spark-core/52250)
**Author:** [@EvanH](https://community.particle.io/u/EvanH)\ **Replies:** 9\ **Last updated:** [September 19, 2019, 7:51pm UTC](https://community.particle.io/t/building-an-app-that-used-to-work-on-a-spark-core/52250 "2019-09-19T19:51:44Z")
Hi - I am having trouble with an application I wrote for a “Spark Core”. I had built this application a couple of years ago and need to make a change and it will no longer compile. I’ll include the raw output from the … --- ## [Updating deviceOS on an old Core](https://community.particle.io/t/updating-deviceos-on-an-old-core/51937)
**Author:** [@ssstraub](https://community.particle.io/u/ssstraub)\ **Replies:** 5\ **Last updated:** [September 2, 2019, 7:58pm UTC](https://community.particle.io/t/updating-deviceos-on-an-old-core/51937 "2019-09-02T19:58:12Z")
So this Core is many years old now. It still boots up and connects to my wifi and goes to normal breathing cyan. I can flash code to it through the IDE seemingly without issue. …But I have no idea what deviceOS is on it… --- ## [Unable to add devices back in devices list after delete](https://community.particle.io/t/unable-to-add-devices-back-in-devices-list-after-delete/51572)
**Author:** [@biswajex](https://community.particle.io/u/biswajex)\ **Replies:** 13\ **Last updated:** [August 10, 2019, 12:50am UTC](https://community.particle.io/t/unable-to-add-devices-back-in-devices-list-after-delete/51572 "2019-08-10T00:50:03Z")
I removed my device from the Web IDE. But now I am unable to put it back. Access Toke in webIDE has the message that the token cant be used because its not active. Also I have tried to use CLI to get device ID and list… --- ## [Core breathing cyan immediately after reset, but not connected to cloud](https://community.particle.io/t/core-breathing-cyan-immediately-after-reset-but-not-connected-to-cloud/51025)
**Author:** [@mnetwork](https://community.particle.io/u/mnetwork)\ **Replies:** 3\ **Last updated:** [July 10, 2019, 6:30pm UTC](https://community.particle.io/t/core-breathing-cyan-immediately-after-reset-but-not-connected-to-cloud/51025 "2019-07-10T18:30:08Z")
I recently had my core go offline after it’s been online in a project for about two years. I reset it and now it just breaths cyan as soon as it turns on. I tried running ‘particle flash --usb tinker -v’ in DFU which see… --- ## [Code working on Photon doesn't work for Core](https://community.particle.io/t/code-working-on-photon-doesnt-work-for-core/50300)
**Author:** [@rlogiacco](https://community.particle.io/u/rlogiacco)\ **Replies:** 17\ **Last updated:** [June 16, 2019, 9:55pm UTC](https://community.particle.io/t/code-working-on-photon-doesnt-work-for-core/50300 "2019-06-16T21:55:04Z")
I have some code compiled on the web IDE which works nicely when flashed on a Photon but doesn’t work on an old Core, in both cases I’m compiling for firmware version 1.1.0. // This #include statement was automatically … --- ## [Core v1.0: Flashing from Web IDE no longer possible after Factory Reset](https://community.particle.io/t/core-v1-0-flashing-from-web-ide-no-longer-possible-after-factory-reset/50364)
**Author:** [@mf2105](https://community.particle.io/u/mf2105)\ **Replies:** 1\ **Last updated:** [June 14, 2019, 12:35pm UTC](https://community.particle.io/t/core-v1-0-flashing-from-web-ide-no-longer-possible-after-factory-reset/50364 "2019-06-14T12:35:35Z")
Last week I did some major updates on 2 Cores from Web IDE, everything worked well (I choosed Device OS target 0.7.0 because compiling with 1.1.0 ended up with an error), all of them are 1st generation (end of 2013, whi…