<
From version < 2.6 >
edited by Xiaoling
on 2022/07/13 17:28
To version < 2.1 >
edited by Xiaoling
on 2022/05/27 08:34
>
Change comment: Uploaded new attachment "image-20220527083416-1.png", version {1}

Summary

Details

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Content
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1 1  = 1. Introduction =
2 2  
3 -
4 4  This chapter describe the checklist for not able to access to AT Command in Dragino LoRaWAN End Node base on STM32 chip.
5 5  
6 -
7 7  = 2. Not able to send AT Command =
8 8  
9 -
10 10  * Do you use a USB to TTL Converter? If you use RS232 converter, it won't work
11 11  * Can you see the output from console.
12 12  * Do you use the correct baudrate:
13 -** (% style="color:blue" %)**Baudrate: 9600**
14 -** (% style="color:blue" %)**Data bits: 8**
15 -** (% style="color:blue" %)**Stop bits: 1**
16 -** (% style="color:blue" %)**Parity: None**
17 -** (% style="color:blue" %)**Flow control: None**
18 18  
11 +(% class="box" %)
12 +(((
13 +~** Baudrate: 9600
14 +~** Data bits: 8
15 +~** Stop bits: 1
16 +~** Parity: None
17 +~** Flow control: None
18 +)))
19 +
19 19  * Did you have the hardware RXD pin connected correctly according to the user manual?
20 20  * Did you add the **ENTER** and **NEW LINE** after press send. Some serial utility doesn't add them by default. Below is an example for adding new line:
21 21  
22 -[[image:image-20220527083416-1.png]]
23 +[[image:https://wiki.dragino.com/images/thumb/5/5c/UART_access_1.png/600px-UART_access_1.png||height="419" width="600"]]
23 23  
24 24  Add a new line in some software
25 25  
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26 26  
27 27  = 3. If you still not able to fix this issue =
28 28  
29 -
30 30  please send us below info at support@dragino.com
31 31  
32 32  * Screen shot for your serial utility baud rate settings.
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