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Last modified by Mengting Qiu on 2025/07/03 14:48
From version 168.6
edited by Xiaoling
on 2022/06/21 09:30
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To version 148.1
edited by Xiaoling
on 2022/06/17 15:00
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Summary

Details

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Title
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1 -LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
1 +LHT65N LoRaWAN Temperature & Humidity Sensor Manual
Parent
... ... @@ -1,1 +1,1 @@
1 -Main.User Manual for LoRaWAN End Nodes.WebHome
1 +Main.WebHome
Content
... ... @@ -1,50 +1,60 @@
1 1  (% style="text-align:center" %)
2 -[[image:1655774244188-589.png]]
2 +[[image:image-20220613162008-1.png||_mstalt="428142" height="579" width="379"]]
3 3  
4 4  
5 5  
6 6  
7 +
7 7  (% _mstvisible="1" %)
8 8  (% _msthash="315238" _msttexthash="18964465" _mstvisible="3" %)**Table of Contents：**
9 9  
11 +{{toc/}}
10 10  
11 11  
12 12  
13 13  
14 -
15 -
16 16  (% _mstvisible="1" %)
17 17  = (% _msthash="277498" _msttexthash="253045" _mstvisible="3" %)1. Introduction(%%) =
18 18  
19 19  (% _mstvisible="1" %)
20 -== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT52 Temperature & Humidity Sensor(%%) ==
20 +== (% _msthash="1532895" _msttexthash="1426958" _mstvisible="3" %)1.1 What is LHT65N Temperature & Humidity Sensor(%%) ==
21 21  
22 22  (% _mstvisible="1" %)
23 23  (((
24 24  (% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
25 -
25 +The Dragino LHT65N Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% _mstvisible="4" style="color:#4f81bd" %)**built-in Temperature & Humidity sensor**(%%) and has an external sensor connector to connect to an external (% _mstvisible="4" style="color:#4f81bd" %)**Temperature Sensor**(% _mstvisible="3" %)**.**
26 +)))
26 26  
27 -The Dragino LHT52 Temperature & Humidity sensor is a Long Range LoRaWAN Sensor. It includes a (% style="color:blue" %)**built-in Temperature & Humidity sensor** (%%)and has a USB Type-C sensor connector to connect to external sensors such as external Temperature Sensor.
28 +(% _mstvisible="1" %)
29 +(((
30 +(% _msthash="506052" _msttexthash="66005810" _mstvisible="2" %)
31 +The LHT65N allows users to send data and reach extremely long ranges. It provides ultra-long range spread spectrum communication and high interference immunity whilst minimizing current consumption. It targets professional wireless sensor network applications such as irrigation systems, smart metering, smart cities, building automation, and so on.
32 +)))
28 28  
29 -LHT52 (% style="color:blue" %)**senses environment temperature and humidity**(%%) and send these values via long-range wireless LoRaWAN protocol. It targets professional wireless sensor network applications such as food service, smart metering, smart cities, building automation, and so on.
34 +(% _mstvisible="1" %)
35 +(((
36 +(% _msthash="506053" _msttexthash="4298047" _mstvisible="2" %)
37 +LHT65N has a built-in 2400mAh non-chargeable battery which can be used for up to 10 years*.
38 +)))
30 30  
31 -LHT52 supports(% style="color:blue" %)** 2 x AAA batteries **(%%)and works for a long time up to several years. Use can replace the batteries easily after they are finished.
40 +(% _mstvisible="1" %)
41 +(((
42 +(% _msthash="506054" _msttexthash="6016374" _mstvisible="2" %)
43 +LHT65N is full compatible with LoRaWAN v1.0.3 Class A protocol, it can work with a standard LoRaWAN gateway.
44 +)))
32 32  
33 -LHT52 is fully compatible with LoRaWAN v1.0.3 protocol, it can work with standard LoRaWAN gateway.
34 -
35 -LHT52 supports(% style="color:blue" %)** Datalog feature** (%%)to make sure users won’t miss sensor data. It records sensor value for every uplink. These values can be retrieved by LoRaWAN server via downlink command.
36 -
37 -LHT52 supports(% style="color:blue" %)** temperature alarm feature**(%%). It can uplink alarm in a short interval while temperature exceeds preset limits.
38 -
39 -*Battery life depends how often to send data, please see [[battery analyzer>>||anchor="H4.2A0PowerConsumptionAnalyze"]].
40 -
41 -(% _msthash="506051" _msttexthash="24333127" _mstvisible="2" %)
42 -[[image:1655774519494-861.png]]
46 +(% _mstvisible="1" %)
47 +(((
48 +(% _msthash="506055" _msttexthash="17023136" _mstvisible="2" %)
49 +LHT65N supports (% _mstvisible="4" style="color:#4f81bd" %)**Datalog Feature**(%%). It will record the data when there is no network coverage and users can retrieve the sensor value later to ensure no miss for every sensor reading.
43 43  )))
44 44  
45 45  (% _mstvisible="1" %)
46 46  (((
47 47  (% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
55 +*The actual battery life depends on how often to send data, please see the battery analyzer chapter.
56 +
57 +(% _msthash="506056" _msttexthash="5557097" _mstvisible="2" %)
48 48  
49 49  )))
50 50  
... ... @@ -52,21 +52,18 @@
52 52  == (% _msthash="182559" _msttexthash="163319" _mstvisible="3" %)1.2 Features(%%) ==
53 53  
54 54  (% _mstvisible="1" %)
55 -* Wall Attachable.
56 -* LoRaWAN v1.0.3 Class A protocol.
57 -* Built-in Temperature & Humidity sensor
58 -* Optional External Probe
65 +* Wall mountable
66 +* LoRaWAN v1.0.3 Class A protocol
59 59  * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915
60 60  * AT Commands to change parameters
61 61  * Remote configure parameters via LoRaWAN Downlink
62 -* Firmware upgradable via program port
63 -* Support 2 x AAA LR03 batteries.
70 +* Firmware upgradeable via program port
71 +* Built-in 2400mAh battery for up to 10 years of use.
72 +* Built-in Temperature & Humidity sensor
73 +* Optional External Sensors
74 +* Tri-color LED to indicate working status
64 64  * Datalog feature
65 -* IP Rating: IP52
66 66  
67 -
68 -
69 -
70 70  (% _mstvisible="1" %)
71 71  == (% _msthash="323570" _msttexthash="297635" _mstvisible="3" %)1.3 Specification(%%) ==
72 72  
... ... @@ -79,10 +79,27 @@
79 79  (% _msthash="506057" _msttexthash="671437" _mstvisible="4" %)**Built-in Temperature Sensor:**
80 80  )))
81 81  
82 -* Resolution: 0.01 °C
83 -* Accuracy Tolerance: Typ ±0.3 °C
84 -* Long Term Drift: < 0.02 °C/yr
85 -* Operating Range: -20 ~~ 50 °C
89 +(% _mstvisible="1" %)
90 +* (% _mstvisible="3" %)
91 +(((
92 +(% _msthash="902993" _msttexthash="294424" _mstvisible="4" %)
93 +Resolution: 0.01 °C
94 +)))
95 +* (% _mstvisible="3" %)
96 +(((
97 +(% _msthash="902994" _msttexthash="690664" _mstvisible="4" %)
98 +Accuracy Tolerance : Typ ±0.3 °C
99 +)))
100 +* (% _mstvisible="3" %)
101 +(((
102 +(% _msthash="902995" _msttexthash="504647" _mstvisible="4" %)
103 +Long Term Drift: < 0.02 °C/yr
104 +)))
105 +* (% _mstvisible="3" %)
106 +(((
107 +(% _msthash="902996" _msttexthash="478257" _mstvisible="4" %)
108 +Operating Range: -40 ~~ 85 °C
109 +)))
86 86  
87 87  (% _mstvisible="1" %)
88 88  (((
... ... @@ -91,24 +91,61 @@
91 91  
92 92  (% _mstvisible="2" %)
93 93  (% _msthash="506058" _msttexthash="544453" _mstvisible="4" %)**Built-in Humidity Sensor:**
118 +)))
94 94  
95 -
96 -* Resolution: 0.1 %RH
97 -* Accuracy Tolerance: Typ ±3 %RH
98 -* Long Term Drift: < 0.02 °C/yr
99 -* Operating Range: 0 ~~ 99.0 %RH(no Dew)
120 +(% _mstvisible="1" %)
121 +* (% _mstvisible="3" %)
122 +(((
123 +(% _msthash="902997" _msttexthash="282438" _mstvisible="4" %)
124 +Resolution: 0.04 %RH
100 100  )))
126 +* (% _mstvisible="3" %)
127 +(((
128 +(% _msthash="902998" _msttexthash="628771" _mstvisible="4" %)
129 +Accuracy Tolerance : Typ ±3 %RH
130 +)))
131 +* (% _mstvisible="3" %)
132 +(((
133 +(% _msthash="902999" _msttexthash="504647" _mstvisible="4" %)
134 +Long Term Drift: < 0.02 °C/yr
135 +)))
136 +* (% _mstvisible="3" %)
137 +(((
138 +(% _msthash="903000" _msttexthash="421291" _mstvisible="4" %)
139 +Operating Range: 0 ~~ 96 %RH
140 +)))
101 101  
102 102  (% _mstvisible="1" %)
103 103  (((
104 104  (% _mstvisible="2" %)
105 105  
146 +
147 +(% _mstvisible="2" %)
148 +(% _msthash="506059" _msttexthash="680537" _mstvisible="4" %)**External Temperature Sensor:**
106 106  )))
107 107  
108 -(% _mstvisible="3" %)
151 +(% _mstvisible="1" %)
152 +* (% _mstvisible="3" %)
109 109  (((
110 -
154 +(% _msthash="903001" _msttexthash="332254" _mstvisible="4" %)
155 +Resolution: 0.0625 °C
156 +)))
157 +* (% _mstvisible="3" %)
158 +(((
159 +(% _msthash="903002" _msttexthash="782600" _mstvisible="4" %)
160 +±0.5°C accuracy from -10°C to +85°C
161 +)))
162 +* (% _mstvisible="3" %)
163 +(((
164 +(% _msthash="903003" _msttexthash="729482" _mstvisible="4" %)
165 +±2°C accuracy from -55°C to +125°C
166 +)))
167 +* (% _mstvisible="3" %)
168 +(((
169 +(% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
170 +Operating Range: -55 °C ~~ 125 °C
111 111  
172 +
112 112  (% _msthash="903004" _msttexthash="592540" _mstvisible="4" %)
113 113  
114 114  )))
... ... @@ -141,8 +141,8 @@
141 141  The LHT65N has two working modes:
142 142  
143 143  (% _mstvisible="1" %)
144 -* (% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
145 -* (% style="color:blue" %)**Working Mode**(%%):  In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65N will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
205 +* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
206 +* **Working Mode**: In this mode, LHT65N works as LoRaWAN Sensor mode to Join LoRaWAN network and send out the sensor data to the server. Between each sampling/tx/rx periodically, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 
146 146  
147 147  (% _mstvisible="1" %)
148 148  (((
... ... @@ -180,7 +180,7 @@
180 180  Each LHT65N is shipped with a sticker with its device EUI, APP Key and APP EUI as below:
181 181  
182 182  (% _mstvisible="1" %)
183 -[[image:image-20220617150003-1.jpeg]]
244 +[[image:image-20220522232812-2.png||_mstalt="428467" _mstvisible="3" height="219" width="279"]]
184 184  
185 185  (% _msthash="315244" _msttexthash="3659149" _mstvisible="1" %)
186 186  User can enter these keys in the LoRaWAN Server portal. Below is TTN V3 screenshot:
... ... @@ -301,6 +301,8 @@
301 301  * The 7th byte (EXT #): defines the external sensor model.
302 302  * The 8(% _msthash="734578" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) ~~ 11(% _msthash="734579" _msttexthash="21372" _mstvisible="4" %)^^th^^(%%) byte: the value for external sensor value. The definition is based on external sensor type. (If EXT=0, there won’t be these four bytes.)
303 303  
365 +
366 +
304 304  (% _mstvisible="1" %)
305 305  === (% _msthash="360269" _msttexthash="333762" _mstvisible="3" %)2.4.1 Decoder in TTN V3(%%) ===
306 306  
... ... @@ -337,6 +337,8 @@
337 337  * BAT status=(0Xcba4>>14)&0xFF=11(B)，very good
338 338  * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV
339 339  
403 +
404 +
340 340  (% _mstvisible="1" %)
341 341  === (% _msthash="600769" _msttexthash="565838" _mstvisible="3" %)2.4.3 Built-in Temperature(%%) ===
342 342  
... ... @@ -352,6 +352,7 @@
352 352  (% _mstvisible="1" %)
353 353  * Temperature:  (0xF5C6-65536)/100=-26.18℃
354 354  
420 +
355 355  (% _mstvisible="1" %)
356 356  === (% _msthash="475891" _msttexthash="445120" _mstvisible="3" %)2.4.4 Built-in Humidity(%%) ===
357 357  
... ... @@ -361,6 +361,7 @@
361 361  (% _mstvisible="1" %)
362 362  * Humidity:    0x025C/10=60.4%
363 363  
430 +
364 364  (% _mstvisible="1" %)
365 365  === (% _msthash="116532" _msttexthash="87958" _mstvisible="3" %)2.4.5 Ext #(%%) ===
366 366  
... ... @@ -407,6 +407,7 @@
407 407  )))
408 408  
409 409  
477 +
410 410  (% _mstvisible="1" %)
411 411  ==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp(%%) ====
412 412  
... ... @@ -527,18 +527,7 @@
527 527  * Sync time OK: 1: Set time ok，0: N/A. After time SYNC request is sent, LHT65N will set this bit to 0 until got the time stamp from the application server.
528 528  * Unix Time Request:1: Request server downlink Unix time, 0 : N/A. In this mode, LHT65N will set this bit to 1 every 10 days to request a time SYNC. (AT+SYNCMOD to set this)
529 529  
530 -==== (% _msthash="1389752" _msttexthash="1234766" _mstvisible="3" %)2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable)(%%) ====
531 531  
532 -In this mode, user can connect external ADC sensor to check ADC value. The 3V3_OUT can
533 -
534 -be used to power the external ADC sensor; user can control the power on time for this
535 -
536 -sensor by setting:
537 -
538 -AT+EXT=6,timeout  (% _msthash="506085" _msttexthash="8782189" _mstvisible="3" style="color:red" %)Time to power this sensor, from 0 ~~ 65535ms
539 -
540 -
541 -
542 542  (% _mstvisible="1" %)
543 543  == (% _msthash="487097" _msttexthash="454818" _mstvisible="3" %)2.5 Show data on Datacake(%%) ==
544 544  
... ... @@ -601,6 +601,7 @@
601 601  1. IoT Server sends a downlink LoRaWAN command to [[poll the value>>||anchor="H2.6.4Pollsensorvalue"]] for specify time range.
602 602  1. Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will store the sensor data, and it will send all messages after network recover.
603 603  
661 +
604 604  (% _mstvisible="1" %)
605 605  === (% _msthash="369915" _msttexthash="342797" _mstvisible="3" %)2.6.2 Unix TimeStamp(%%) ===
606 606  
... ... @@ -1099,17 +1099,6 @@
1099 1099  = (% _msthash="401388" _msttexthash="566956" _mstvisible="3" %)3. S(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ensors(% _msthash="401388" _msttexthash="40417" _mstvisible="3" %) and A(% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)ccessories(%%) =
1100 1100  
1101 1101  (% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1102 -== (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E2 Extension Cable(%%) ==
1103 -
1104 -[[image:image-20220619092222-1.png||height="182" width="188"]][[image:image-20220619092313-2.png||height="182" width="173"]]
1105 -
1106 -1m long breakout cable for LHT65N
1107 -
1108 -[[image:image-20220619092421-3.png||height="371" width="529"]]
1109 -
1110 -
1111 -
1112 -(% _msthidden="1" _mstvisible="1" style="text-align: left;" %)
1113 1113  == (% _msthash="903005" _msttexthash="1647204" _mstvisible="2" %)3.1(% _msthash="487110" _msttexthash="455390" %) E3 Temperature Probe(%%) ==
1114 1114  
1115 1115  (% _mstvisible="1" %)
... ... @@ -1127,6 +1127,7 @@
1127 1127  * -55°C to 125°C
1128 1128  * Working voltage 2.35v ~~ 5v
1129 1129  
1177 +
1130 1130  (% _mstvisible="1" style="text-align: left;" %)
1131 1131  = (% _msthash="1940107" _msttexthash="1714063" _mstvisible="3" %)4. Configure LHT65N via AT command or LoRaWAN downlink(%%) =
1132 1132  
... ... @@ -1342,6 +1342,7 @@
1342 1342  * 0xA800  **~-~->** AT+PID=0
1343 1343  * 0xA801     **~-~->** AT+PID=1
1344 1344  
1393 +
1345 1345  (% _mstvisible="1" style="text-align: left;" %)
1346 1346  == (% _msthash="266344" _msttexthash="242879" _mstvisible="3" %)4.4 Set Password(%%) ==
1347 1347  
... ... @@ -1413,6 +1413,7 @@
1413 1413  (% _mstvisible="1" %)
1414 1414  * There is no downlink command to set to Sleep mode.
1415 1415  
1465 +
1416 1416  (% _mstvisible="1" %)
1417 1417  == (% _msthash="336557" _msttexthash="309712" _mstvisible="3" %)4.7 Set system time(%%) ==
1418 1418  
... ... @@ -1547,6 +1547,7 @@
1547 1547  (% _mstvisible="1" %)
1548 1548  * Example: 0xA301 ~/~/Same as AT+CLRDTA
1549 1549  
1600 +
1550 1550  (% _mstvisible="1" %)
1551 1551  == (% _msthash="740532" _msttexthash="701363" _mstvisible="3" %)4.13 Auto Send None-ACK messages(%%) ==
1552 1552  
... ... @@ -1570,6 +1570,7 @@
1570 1570  (% _mstvisible="1" %)
1571 1571  * Example: 0x3401 ~/~/Same as AT+PNACKMD=1
1572 1572  
1624 +
1573 1573  (% _mstvisible="1" %)
1574 1574  = (% _msthash="568737" _msttexthash="502827" _mstvisible="3" %)5. Battery & How to replace(%%) =
1575 1575  
... ... @@ -1602,7 +1602,6 @@
1602 1602  (% _mstvisible="1" %)
1603 1603  [[image:image-20220515075440-2.png||_mstalt="429546" _mstvisible="3" height="338" width="272"]][[image:image-20220515075625-3.png||_mstalt="431574" _mstvisible="3" height="193" width="257"]]
1604 1604  
1605 -
1606 1606  (% _mstvisible="1" %)
1607 1607  == (% _msthash="494650" _msttexthash="462241" _mstvisible="3" %)5.3 Battery Life Analyze(%%) ==
1608 1608  
... ... @@ -1865,7 +1865,7 @@
1865 1865  (% _msthash="506131" _msttexthash="14585714" %)
1866 1866  AT commands：
1867 1867  
1868 -[[image:image-20220620153708-1.png||height="603" width="723"]]
1919 +[[image:image-20220615092034-1.png||_mstalt="428870"]]
1869 1869  
1870 1870  (% _msthash="506132" _msttexthash="337922" %)
1871 1871  Downlink commands:
... ... @@ -1874,13 +1874,13 @@
1874 1874  (% _msthash="506133" _msttexthash="33046" %)
1875 1875  **TTN:**
1876 1876  
1877 -[[image:image-20220615092124-2.png||_mstalt="429221" height="649" width="688"]]
1928 +[[image:image-20220615092124-2.png||_mstalt="429221" height="843" width="893"]]
1878 1878  
1879 1879  
1880 1880  (% _msthash="506134" _msttexthash="11113791" %)
1881 1881  **Helium：**
1882 1882  
1883 -[[image:image-20220615092551-3.png||_mstalt="430794" height="423" width="835"]]
1934 +[[image:image-20220615092551-3.png||_mstalt="430794" height="556" width="1097"]]
1884 1884  
1885 1885  
1886 1886  (% _msthash="506135" _msttexthash="4159844" %)
... ... @@ -1888,13 +1888,13 @@
1888 1888  
1889 1889  [[image:image-20220615094850-6.png||_mstalt="433082"]]
1890 1890  
1891 -[[image:image-20220615094904-7.png||_mstalt="433485" height="281" width="911"]]
1942 +[[image:image-20220615094904-7.png||_mstalt="433485" height="329" width="1067"]]
1892 1892  
1893 1893  
1894 1894  (% _msthash="506136" _msttexthash="39286" %)
1895 1895  **Aws:**
1896 1896  
1897 -[[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1948 +[[image:image-20220615092939-4.png||_mstalt="434460" height="532" width="1062"]]
1898 1898  
1899 1899  
1900 1900  == (% _msthash="1220570" _msttexthash="33199257" %)6.3 How to change the uplink interval？(%%) ==
... ... @@ -1907,8 +1907,6 @@
1907 1907  
1908 1908  [[image:image-20220615153355-1.png]]
1909 1909  
1910 -[[image:image-20220620154900-5.jpeg||height="427" width="570"]]
1911 -
1912 1912  (% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1913 1913  
1914 1914  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1915,10 +1915,9 @@
1915 1915  
1916 1916  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1917 1917  
1967 +[[image:image-20220615153914-2.jpeg||height="608" width="456"]]
1918 1918  
1919 -To switch from download mode to command mode, press reset key
1920 1920  
1921 -
1922 1922  (((
1923 1923  (% _msthash="736728" _msttexthash="67213055" %)
1924 1924  (((
... ... @@ -1930,18 +1930,16 @@
1930 1930  (% _msthash="736729" _msttexthash="1907009" %)
1931 1931  Input password and ATZ to activate LHT65N,As shown below:
1932 1932  
1933 -[[image:image-20220615154519-3.png||height="672" width="807"]]
1981 +[[image:image-20220615154519-3.png]]
1934 1934  
1935 1935  
1936 1936  )))
1937 1937  
1986 +
1938 1938  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1939 1939  
1940 -
1941 1941  [[image:image-20220615153355-1.png]]
1942 1942  
1943 -(% style="background-color:yellow" %)**1 < - -> GND  < - ->  Black**
1944 -
1945 1945  (% style="background-color:yellow" %)**4  < - ->  3.3V  < - ->  Blue**
1946 1946  
1947 1947  (% style="background-color:yellow" %)**5 < - ->  RXD  < - ->  White**
... ... @@ -1948,13 +1948,9 @@
1948 1948  
1949 1949  (% style="background-color:yellow" %)**9 < - ->  TXD  < - ->  Green**
1950 1950  
1951 -[[image:image-20220620160241-6.jpeg||height="428" width="571"]]
1997 +Use after connection， ground wire（1 < - -> GND  < - ->  Black） for 1s and then pull it out.Then restart the device.
1952 1952  
1953 -Press reset after connecting the 4boot cable to enter the download mode.
1954 1954  
1955 -[[image:image-20220620160516-7.png||height="435" width="435"]]
1956 -
1957 -
1958 1958  (% _mstmutation="1" %)**Step1**(%%): Install TremoProgrammer  first.
1959 1959  
1960 1960  [[image:image-20220615170542-5.png]]
... ... @@ -1972,7 +1972,7 @@
1972 1972  
1973 1973  (% _istranslated="1" _mstmutation="1" %)**Step4：**(%%)Click Start
1974 1974  
1975 -[[image:image-20220620160723-8.png]]
2017 +
1976 1976  )))
1977 1977  
1978 1978  (% _mstvisible="1" %)
... ... @@ -2044,6 +2044,8 @@
2044 2044  (% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2045 2045  (% style="color:red" %)**E3**(%%): External Temperature Probe
2046 2046  
2089 +
2090 +(% _msthash="903335" _msttexthash="720135" _mstvisible="4" %)
2047 2047  
2048 2048  )))
2049 2049  
... ... @@ -2067,6 +2067,11 @@
2067 2067  )))
2068 2068  * (% _mstvisible="3" %)
2069 2069  (((
2114 +(% _msthash="903337" _msttexthash="242567" _mstvisible="4" %)
2115 +Program cable x 1
2116 +)))
2117 +* (% _mstvisible="3" %)
2118 +(((
2070 2070  (% _msthash="903338" _msttexthash="544167" _mstvisible="4" %)
2071 2071  Optional external sensor
2072 2072  )))
... ... @@ -2092,6 +2092,9 @@
2092 2092  (% _mstvisible="3" %)
2093 2093  (((
2094 2094  
2144 +
2145 +(% _msthash="903342" _msttexthash="227084" _mstvisible="4" %)
2146 +
2095 2095  )))
2096 2096  
2097 2097  = (% _msthash="184782" _msttexthash="16007771" %)9. Reference material(%%) =
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