Wiki source code of TTN Stack 3
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1 | **~ Contents:** | ||
2 | |||
3 | {{toc/}} | ||
4 | |||
5 | = 1. Introduction = | ||
6 | |||
7 | Notes for using Dragino Devices with TTN Stack3. | ||
8 | |||
9 | |||
10 | = 2. Downlink = | ||
11 | |||
12 | Use MQTT API for downlink: Reference: [[TTN Stack v3 MQTT reference>>url:https://thethingsstack.io/v3.1.0/guides/getting-started/mqtt/]] | ||
13 | |||
14 | ((( | ||
15 | **Download command is:** | ||
16 | ))) | ||
17 | |||
18 | (% class="box" %) | ||
19 | ((( | ||
20 | mosquitto_pub -h eu1.cloud.thethings.industries -p 1883 -t v3/akXXXXXps@XXXXXX/devices/lsn50/down/push -u akXXXXXps@XXXXXX -P NNSXS.XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXX.LVQZECLX5FZ3XO5ACOW47IZ6HM54DMBBU776C53ZQHPLPQALIXYA -m '{"downlinks":[{"f_port": 2,"frm_payload":"AwAA","priority": "HIGH","confirmed": true}]}' | ||
21 | ))) | ||
22 | |||
23 | ((( | ||
24 | The MQTT command use (% style="color:#4f81bd" %)**-h,-p,-u,-P** (%%)options. We can find them in the website. | ||
25 | ))) | ||
26 | |||
27 | [[image:image-20220526142228-1.png]] | ||
28 | |||
29 | find -h : broker address , -p port and -u: user name | ||
30 | |||
31 | [[image:https://wiki.dragino.com/images/thumb/a/a6/Stack_v3_downlink_2.png/600px-Stack_v3_downlink_2.png||height="395" width="600"]] | ||
32 | |||
33 | find -P : Password | ||
34 | |||
35 | |||
36 | User MQTT.FX to simulate a downlink | ||
37 | |||
38 | [[image:https://wiki.dragino.com/images/thumb/5/5c/Stack_v3_downlink_3.png/800px-Stack_v3_downlink_3.png||alt="File:Stack v3 downlink 3.png" height="534" width="730"]] | ||
39 | |||
40 | Use MQTT.FX to simulate downlink | ||
41 | |||
42 | |||
43 | Input connection info | ||
44 | |||
45 | [[image:https://wiki.dragino.com/images/thumb/4/44/Stack_v3_downlink_4.png/600px-Stack_v3_downlink_4.png||height="437" width="600"]] | ||
46 | |||
47 | Input MQTT connection info | ||
48 | |||
49 | |||
50 | Send a downstream | ||
51 | |||
52 | [[image:https://wiki.dragino.com/images/thumb/e/ec/Stack_v3_downlink_5.png/600px-Stack_v3_downlink_5.png||alt="Stack v3 downlink 5.png" height="438" width="600"]] | ||
53 | |||
54 | Gateway traffic for downstream | ||
55 | |||
56 | [[image:https://wiki.dragino.com/images/thumb/8/8a/Stack_v3_downlink_8.png/600px-Stack_v3_downlink_8.png||alt="Stack v3 downlink 8.png" height="235" width="600"]] | ||
57 | |||
58 | |||
59 | Downstream data flow will like below: | ||
60 | |||
61 | [[image:https://wiki.dragino.com/images/thumb/d/d1/Stack_v3_downlink_6.png/600px-Stack_v3_downlink_6.png||alt="Stack v3 downlink 6.png" height="233" width="600"]] | ||
62 | |||
63 | [[image:https://wiki.dragino.com/images/1/1f/Stack_v3_downlink_7.png||alt="Stack v3 downlink 7.png" height="371" width="453"]] | ||
64 | |||
65 | = 3. Trouble Shooting = | ||
66 | |||
67 | == 3.1 Problem when register a device to TTNv3 if it is already register to TTNv2 == | ||
68 | |||
69 | When you register the device in V2 and V3 with the same key and EUI, the device can only connect to V2. | ||
70 | |||
71 | [[image:https://wiki.dragino.com/images/thumb/0/0d/V3v2.png/600px-V3v2.png||alt="V3v2.png" height="403" width="600"]] | ||
72 | |||
73 | [[image:https://wiki.dragino.com/images/thumb/b/b9/V2v3.png/600px-V2v3.png||alt="V2v3.png" height="352" width="600"]] | ||
74 | |||
75 | If you want the device to connect to V3. You must change your key and EUI, or delete the device registered on V2. | ||
76 | |||
77 | == 3.2 MIC Mismatch or MIC Failed == | ||
78 | |||
79 | ((( | ||
80 | ((( | ||
81 | When the device is registered or the device is working normally, the problem of MIC mismatch and MIC failed occurs. | ||
82 | ))) | ||
83 | ))) | ||
84 | |||
85 | ((( | ||
86 | ((( | ||
87 | Under normal circumstances, users need to change the APPKEY to solve this problem. | ||
88 | ))) | ||
89 | ))) | ||
90 | |||
91 | [[image:https://wiki.dragino.com/images/thumb/d/dd/MIC_mismatch.png/600px-MIC_mismatch.png||height="208" width="600"]] | ||
92 | |||
93 | MIC Mismatch |