# AT+SCAN3 not working

**URL:** <https://bbs.aprbrother.com/t/at-scan3-not-working/725>\
**Category:** Arduino\
**Created:** [September 29, 2016, 1:29am UTC](https://bbs.aprbrother.com/t/at-scan3-not-working/725 "2016-09-29T01:29:19Z")\
**Posts on this page:** 2\
**Page:** 1

<div class="post-metadata">

**Author:** ![Waywayway](https://bbs.aprbrother.com/letter_avatar_proxy/v4/letter/w/67e7ee/32.png) [@Waywayway](https://bbs.aprbrother.com/u/Waywayway)\
**Post date:** [September 29, 2016, 1:29am UTC](https://bbs.aprbrother.com/t/at-scan3-not-working/725/1 "2016-09-29T01:29:20Z")

</div>

I’m using the basic hardware serial test sketch, and trying to test out AT+SCAN3.

AT+SCAN1 and AT+SCAN2 both work without a problem. But when I try AT+SCAN3, I get the following nonsense results in the serial monitor:

OK+SCAN1

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN��µ������O�����adx%'�Ъ��

OK+SCAN0

I’m using Arduino IDE and have already tried adjusting the serial monitor settings (carriage return & line ending), but there seems to be no effect.

Any suggestions?

---

<div class="post-metadata">

**Author:** ![aprilpea](https://bbs.aprbrother.com/user_avatar/bbs.aprbrother.com/aprilpea/32/9_2.png) [@aprilpea](https://bbs.aprbrother.com/u/aprilpea)\
**Post date:** [September 29, 2016, 2:30am UTC](https://bbs.aprbrother.com/t/at-scan3-not-working/725/2 "2016-09-29T02:30:11Z")

</div>

The data after OK+SCAN is hex format. You should print them in hex format. For example:

```auto
Serial.print(value, 16);

```