# Swan and Notecarrier F - notecard not detected

**URL:** https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473
**Category:** Uncategorized
**Created:** [June 28, 2023, 3:41pm UTC](https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473 "2023-06-28T15:41:38Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![baitech](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@baitech](https://discuss.blues.com/u/baitech)
#### Post date: [June 28, 2023, 3:41pm UTC](https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473/1 "2023-06-28T15:41:38Z")

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Working through the quickstart guides for new development kit with a Swan 3.0 and Notecarrier F. No issues until I tried to initialize over I2c with notecard.begin() - notecard not detected. Using Arduino IDE with Notecard library 1.4.5

I tried an I2C scanning sketch and it found no devices. Moved the notecard to the RPi hat and I2C worked perfectly with a RPi4.

Feather PWR switch is on. Also tried separate power for Swan & Notecarrier but no luck. Any ideas?

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### Author: ![zfields](https://sea2.discourse-cdn.com/flex020/user_avatar/discuss.blues.com/zfields/32/29_2.png) [@zfields](https://discuss.blues.com/u/zfields)
#### Post date: [June 28, 2023, 4:56pm UTC](https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473/2 "2023-06-28T16:56:34Z")

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Thank you for running the sanity check and making a new post! 👍

If you’re in a position to share your code, I’d love to have a look. Also, if you would send a picture of your hardware then maybe I could see something that is not obvious to someone new to Blues.

Cheers,  
Zak

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### Author: ![baitech](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@baitech](https://discuss.blues.com/u/baitech)
#### Post date: [June 28, 2023, 6:39pm UTC](https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473/3 "2023-06-28T18:39:55Z")

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Hi Zak - thanks for the quick reply. Here’s the code and pic:

```auto
#include <Notecard.h>
#define serialDebug Serial
#define productUID "com.gmail.baileje1:wg_hivemon"

Notecard notecard;
   
void setup (void) {
  serialDebug.begin(115200);
  while (!serialDebug) {
    ; // wait for serial port to connect. Needed for native USB
  }
  serialDebug.println("Starting notecard...");
  notecard.begin();
  notecard.setDebugOutputStream(serialDebug);

  J *req = notecard.newRequest("hub.set");
  JAddStringToObject(req, "product", productUID);
  JAddStringToObject(req, "mode", "continuous");
  notecard.sendRequest(req);
}

void loop (void) {
}

```

 ![20230628_140938](https://us1.discourse-cdn.com/flex020/uploads/blues/original/1X/2f13b920c7b79d5241804a2408709e849fea00ac.jpeg)

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<div class="post-metadata">

### Author: ![baitech](https://avatars.discourse-cdn.com/v4/letter/b/5f9b8f/32.png) [@baitech](https://discuss.blues.com/u/baitech)
#### Post date: [July 5, 2023, 5:54am UTC](https://discuss.blues.com/t/swan-and-notecarrier-f-notecard-not-detected/1473/4 "2023-07-05T05:54:38Z")

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Turns out even though the Feather PWR switch looked like it was on… it wasn’t. Everything started working once I toggled the Notecarrier switches off & back on. Should have known better.