Skip to Content
Version 25.5 by Kilight Cao on 2025/06/12 13:52
Show last authors
1 **~ Table of Contents:**
2
3 {{toc/}}
4
5
6
7
8 = **1. Introduction** =
9
10
11 This chapter describes how to set Transmit Time Interval.
12
13
14 = **2. Downlink Payload** =
15
16
17 TDC can be controlled by Downlink Payload.
18
19 (((
20 **For example**: AT+TDC=0x258=600s ** ; Payload: **01 00 02 58 TDC=600s The time interval is represented by hexadecimal conversion to decimal.
21 )))
22
23 [[image:image-20220527085044-1.png]]
24
25
26 If the payload=0100003C, it means set the END Node's TDC to 0x00003C=60(S), 3C (HEX) = 60 (decimal)，while type code is 01.
27
28 **Payload: **01 00 00 1E TDC=30s Payload: 01 00 00 3C TDC=60s
29
30
31 == **2.1 Example Downlink payload setting in TTN:** ==
32
33 [[image:image-20221110143023-2.png||height="632" width="808"]]
34
35
36 == **2.2 Example Downlink payload use the Bluetooth:** ==
37
38
39 (% style="color:red" %)**Note: This feature is only available on devices that support Bluetooth sensors.**
40
41
42 Here list the models that support BLE and the method to activate BLE function.
43
44 (% style="color:blue" %)**Models:**(%%)** **All models with -LB, -LS , -NB, -NS, -CB, -CS suffix
45
46 (% style="color:blue" %)**BLE Activate Method:**
47
48 Device is battery power type and BLE will be only activate on below case:
49
50 * Press button to send an uplink
51
52 * Press button to active device.
53
54 * Device Power on or reset.
55
56 If there is no activity connection on BLE in 60 seconds, sensor will shut down BLE module to enter low power mode.
57
58 Download link of dragino mobile app: **[[Mobile_APP>>url:https://www.dropbox.com/scl/fo/gyscmfn1s03oz3n8rif8w/AJW7JoMQsQ56dtlls2SNf9c?rlkey=3q2cxwriyzh26vuairx01yebc&e=1&st=be5jv92w&dl=0]]**
59
60 Google Play Store: **[[DeviceTool.app>>url:https://play.google.com/store/apps/details?id=com.teyi.device.tool.app]]**
61
62
63 For more detailed steps on how to use the dragino mobile app, please refer to the following link:  **[[BLE Bluetooth Remote Configure - DRAGINO>>url:https://wiki.dragino.com/xwiki/bin/view/Main/BLE%20Bluetooth%20Remote%20Configure/]]**
64
65
66
67 = **3. Downlink Method** =
68
69
70 See use  note for different serves [[Servers Note>>doc:Main.WebHome]](IoT LoRaWAN Server)
71
72