# Core without Cloud \[Fixed\] **URL:** \ **Category:** General\ **Created:** [December 29, 2013, 7:28pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072 "2013-12-29T19:28:08Z")\ **Posts on this page:** 10\ **Page:** 1
**Author:** ![Frido](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/frido/32/266_2.png) [@Frido](https://community.particle.io/u/Frido)\ **Post date:** [December 29, 2013, 7:28pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/1 "2013-12-29T19:28:08Z")
Hi there, I managed to compile the latest firmware from git, write my own app w/o the web-GUI and compile/flash it via USB on my Mac. How to modify the source to - get a stable (as possible) running core - without connection to the cloud - with TCPClient functions Searched the forum already… Cheers, Frido. ---
**Author:** ![zachary](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/zachary/32/20717_2.png) [@zachary](https://community.particle.io/u/zachary)\ **Post date:** [December 30, 2013, 4:36am UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/2 "2013-12-30T04:36:31Z")
Hi @Frido—short answer: It’s in our backlog and moderately high priority but not possible right now. There’s a #define for turning off the Wi-Fi capabilities completely, but no simple way to use TCPClient without the Cloud connection. The firmware’s open source—if you can make it happen before we do, please submit a pull request! 😄 ---
**Author:** ![Frido](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/frido/32/266_2.png) [@Frido](https://community.particle.io/u/Frido)\ **Post date:** [December 30, 2013, 2:08pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/3 "2013-12-30T14:08:42Z")
Ok. I’ll be patient… 😉 So I tried: application.cpp: ``` #include "application.h" int led = D7; void setup() { pinMode(led, OUTPUT); } void loop() { digitalWrite(led, HIGH); delay(500); digitalWrite(led, LOW); delay(500); } ``` make… dfu-util… - RGB-LED flashes slow in the well known manner, as it’s connected to the cloud - D7-LED blinks! now I comment line 37 in platform\_config.h: ``` //#define SPARK_WLAN_ENABLE ``` now it’s undefined and therefore WiFi should be disabled, right? make clean… make…dfu-util… now: - RGB-LED flashes fast the same way as if it lost the connection to the cloud - D7-led stays off. ☹ - Reset does not fix this… My fault? ---
**Author:** ![zachary](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/zachary/32/20717_2.png) [@zachary](https://community.particle.io/u/zachary)\ **Post date:** [December 30, 2013, 5:00pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/4 "2013-12-30T17:00:09Z")
Thanks @Frido. I haven’t turned off the WLAN in a while, but that’s surprising—I’ll test this this week. ---
**Author:** ![mohit](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/mohit/32/1971_2.png) [@mohit](https://community.particle.io/u/mohit)\ **Post date:** [December 30, 2013, 6:18pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/5 "2013-12-30T18:18:36Z")
@Frido Yes, I’m able to replicate this too. I had not commented out the SPARK\_WLAN\_ENABLE in a while. Seems like a bug. I’ll add this to the backlog. @satishgn could you confirm this as well? ---
**Author:** ![Frido](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/frido/32/266_2.png) [@Frido](https://community.particle.io/u/Frido)\ **Post date:** [January 11, 2014, 3:28pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/7 "2014-01-11T15:28:03Z")
My solution: in _main.cpp_ insert code after line 191 ``` #ifndef SPARK_WLAN_ENABLE ApplicationSetupOnce = 1; LED_RGB_OVERRIDE =1; LED_On(LED_RGB); #endif ``` now comment Line 37 in _platform\_config.h_ (therefore SPARK\_WLAN\_ENABLE is undefined) and my little blinking code works solid as a rock! Cheers, Frido. P.S. Can anybody fork and submit a pull request? I’m a noob to git! ---
**Author:** ![Frido](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/frido/32/266_2.png) [@Frido](https://community.particle.io/u/Frido)\ **Post date:** [January 12, 2014, 5:11pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/8 "2014-01-12T17:11:40Z")
Fix with a bug! It got caught in a loop with setup(). First fix for the fix: in _main.cpp_ insert code after line 191 ``` #ifndef SPARK_WLAN_ENABLE if (LED_RGB_OVERRIDE!=1) ApplicationSetupOnce = 1; LED_RGB_OVERRIDE =1; LED_On(LED_RGB); #endif ``` ---
**Author:** ![zach](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/zach/32/20714_2.png) [@zach](https://community.particle.io/u/zach)\ **Post date:** [January 13, 2014, 5:48am UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/9 "2014-01-13T05:48:24Z")
Pull request has been initiated - thanks @Frido and @henriquepss! > Reviewing this week, but there it is if anyone wants to get at it early. ---
**Author:** ![henriquepss](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/henriquepss/32/20785_2.png) [@henriquepss](https://community.particle.io/u/henriquepss)\ **Post date:** [January 13, 2014, 8:35pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/10 "2014-01-13T20:35:43Z")
Having trouble understanding why do you need the _if (LED\_RGB\_OVERRIDE!=1)_ before setting AplicationSetupOnce to 1, could you clarify please? ---
**Author:** ![Frido](https://sea2.discourse-cdn.com/flex026/user_avatar/community.particle.io/frido/32/266_2.png) [@Frido](https://community.particle.io/u/Frido)\ **Post date:** [January 13, 2014, 10:17pm UTC](https://community.particle.io/t/core-without-cloud-fixed/1072/11 "2014-01-13T22:17:42Z")
Without this, setup() is not only called once but again and again and again… Figured this out by turning D7 on and off in setup() and doing nothing in loop(). 😉 Try: ``` #include "application.h" int led = D7; void setup() { pinMode(led, OUTPUT); digitalWrite(led, HIGH); delay(500); digitalWrite(led, LOW); delay(500); } void loop() { } ```