Last modified by Xiaoling on 2023/07/18 10:12

From version 223.4
edited by Xiaoling
on 2022/12/02 15:14
Change comment: There is no comment for this version
To version 210.16
edited by Xiaoling
on 2022/10/26 17:34
Change comment: There is no comment for this version

Summary

Details

Page properties
Content
... ... @@ -16,6 +16,7 @@
16 16  
17 17  = 1. Introduction =
18 18  
19 +
19 19  == 1.1 What is LHT65N Temperature & Humidity Sensor ==
20 20  
21 21  
... ... @@ -44,6 +44,7 @@
44 44  )))
45 45  
46 46  
48 +
47 47  == 1.2 Features ==
48 48  
49 49  
... ... @@ -89,6 +89,7 @@
89 89  
90 90  = 2. Connect LHT65N to IoT Server =
91 91  
94 +
92 92  == 2.1 How does LHT65N work? ==
93 93  
94 94  
... ... @@ -101,6 +101,7 @@
101 101  )))
102 102  
103 103  
107 +
104 104  == 2.2 How to Activate LHT65N? ==
105 105  
106 106  
... ... @@ -109,7 +109,7 @@
109 109  )))
110 110  
111 111  * (((
112 -(% 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.
116 +(% style="color:blue" %)**Deep Sleep Mode**(%%): LHT65N doesnt have any LoRaWAN activation. This mode is used for storage and shipping to save battery life.
113 113  )))
114 114  * (((
115 115  (% 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. 
... ... @@ -125,6 +125,7 @@
125 125  [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]]
126 126  
127 127  
132 +
128 128  == 2.3 Example to join LoRaWAN network ==
129 129  
130 130  
... ... @@ -141,6 +141,7 @@
141 141  )))
142 142  
143 143  
149 +
144 144  === 2.3.1 Step 1: Create Device n TTN ===
145 145  
146 146  
... ... @@ -181,6 +181,8 @@
181 181  [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]]
182 182  
183 183  
190 +
191 +
184 184  === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. ===
185 185  
186 186  
... ... @@ -191,6 +191,7 @@
191 191  [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]]
192 192  
193 193  
202 +
194 194  == 2.4 Uplink Payload   ( Fport~=2) ==
195 195  
196 196  
... ... @@ -251,6 +251,7 @@
251 251  [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]]
252 252  
253 253  
263 +
254 254  === 2.4.2 BAT-Battery Info ===
255 255  
256 256  
... ... @@ -299,8 +299,10 @@
299 299  [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]]
300 300  
301 301  
312 +
302 302  === 2.4.6 Ext value ===
303 303  
315 +
304 304  ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ====
305 305  
306 306  
... ... @@ -323,6 +323,7 @@
323 323  If the external sensor is 0x01, and there is no external temperature connected. The temperature will be set to 7FFF which is 327.67℃
324 324  
325 325  
338 +
326 326  ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ====
327 327  
328 328  
... ... @@ -362,6 +362,7 @@
362 362  [[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
363 363  )))
364 364  
378 +
365 365  * **Battery status & Built-in Humidity**
366 366  
367 367  (% _mstvisible="1" border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:461px" %)
... ... @@ -376,6 +376,7 @@
376 376  [[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]
377 377  )))
378 378  
393 +
379 379  * **Status & Ext Byte**
380 380  
381 381  (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %)
... ... @@ -436,6 +436,7 @@
436 436  [[image:image-20220628151143-7.png]]
437 437  
438 438  
454 +
439 439  ==== 2.4.6.4 Ext~=2 TMP117 Sensor (Since Firmware v1.3) ====
440 440  
441 441  
... ... @@ -452,6 +452,7 @@
452 452  The external cable NE2 can be use for MOD4 and MOD8
453 453  
454 454  
471 +
455 455  ==== 2.4.6.5 Ext~=4 Interrupt Mode (Since Firmware v1.3) ====
456 456  
457 457  
... ... @@ -498,6 +498,8 @@
498 498  [[image:image-20220906101145-3.png]]
499 499  
500 500  
518 +
519 +
501 501  ==== 2.4.6.6 Ext~=8 Counting Mode(Since Firmware v1.3) ====
502 502  
503 503  
... ... @@ -549,6 +549,7 @@
549 549  A2 08 02 00 00 00 3C:  Same as AT+ SETCNT=60  (AT+ SETCNT = 4th byte and 5th byte and 6th byte and 7th byte)
550 550  
551 551  
571 +
552 552  == 2.5 Show data on Datacake ==
553 553  
554 554  
... ... @@ -596,6 +596,7 @@
596 596  [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]]
597 597  
598 598  
619 +
599 599  == 2.6 Datalog Feature ==
600 600  
601 601  
... ... @@ -604,6 +604,7 @@
604 604  )))
605 605  
606 606  
628 +
607 607  === 2.6.1 Ways to get datalog via LoRaWAN ===
608 608  
609 609  
... ... @@ -614,7 +614,6 @@
614 614  
615 615  (% style="color:blue" %)**Method 2: **(%%)Set [[PNACKMD=1>>||anchor="H4.13AutoSendNone-ACKmessages"]], LHT65N will wait for ACK for every uplink, when there is no LoRaWAN network, LHT65N will mark these records with non-ack messages and store the sensor data, and it will send all messages (10s interval) after the network recovery.
616 616  
617 -
618 618  (% style="color:red" %)**Note for method 2:**
619 619  
620 620  * a) LHT65N will do an ACK check for data records sending to make sure every data arrive server.
... ... @@ -626,6 +626,7 @@
626 626  [[image:image-20220703111700-2.png||height="381" width="1119"]]
627 627  
628 628  
650 +
629 629  === 2.6.2 Unix TimeStamp ===
630 630  
631 631  
... ... @@ -642,10 +642,10 @@
642 642  
643 643  [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]]
644 644  
645 -
646 646  So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25
647 647  
648 648  
670 +
649 649  === 2.6.3 Set Device Time ===
650 650  
651 651  
... ... @@ -669,8 +669,10 @@
669 669  (% style="color:red" %)**Note: LoRaWAN Server need to support LoRaWAN v1.0.3(MAC v1.0.3) or higher to support this MAC command feature, Chirpstack,TTN V3 v3 and loriot support but TTN V3 v2 doesn't support. If server doesn't support this command, it will through away uplink packet with this command, so user will lose the packet with time request for TTN V3 v2 if SYNCMOD=1.**
670 670  )))
671 671  
694 +(((
695 +
696 +)))
672 672  
673 -
674 674  (((
675 675  **2. Manually Set Time**
676 676  )))
... ... @@ -680,6 +680,7 @@
680 680  )))
681 681  
682 682  
707 +
683 683  === 2.6.4 Poll sensor value ===
684 684  
685 685  
... ... @@ -697,6 +697,7 @@
697 697  Uplink Internal =5s,means LHT65N will send one packet every 5s. range 5~~255s.
698 698  
699 699  
725 +
700 700  === 2.6.5 Datalog Uplink payload ===
701 701  
702 702  
... ... @@ -710,6 +710,7 @@
710 710  )))|=(% style="width: 90px;" %)**2**|=(% style="width: 90px;" %)**2**|=(% style="width: 70px;" %)**2**|=(% style="width: 100px;" %)**1**|=(% style="width: 70px;" %)**4**
711 711  |(% style="width:97px" %)**Value**|(% style="width:123px" %)[[External sensor data>>||anchor="H2.4.6Extvalue"]]|(% style="width:108px" %)[[Built In Temperature>>||anchor="H2.4.3Built-inTemperature"]]|(% style="width:133px" %)[[Built-in Humidity>>||anchor="H2.4.4Built-inHumidity"]]|(% style="width:159px" %)Poll message flag & Ext|(% style="width:80px" %)[[Unix Time Stamp>>||anchor="H2.6.2UnixTimeStamp"]]
712 712  
739 +
713 713  **Poll message flag & Ext:**
714 714  
715 715  [[image:image-20221006192726-1.png||height="112" width="754"]]
... ... @@ -722,6 +722,7 @@
722 722  
723 723  * Each data entry is 11 bytes, to save airtime and battery, devices will send max bytes according to the current DR and Frequency bands.
724 724  
752 +
725 725  For example, in US915 band, the max payload for different DR is:
726 726  
727 727  (% style="color:blue" %)**a) DR0:** (%%)max is 11 bytes so one entry of data
... ... @@ -771,9 +771,10 @@
771 771  Unix time is 0x60066009=1611030423s=21/1/19 04:27:03
772 772  
773 773  
774 -== 2.7 Alarm Mode & Feature "Multi sampling, one uplink" ==
775 775  
803 +== 2.7 Alarm Mode ==
776 776  
805 +
777 777  (((
778 778  when the device is in alarm mode, it checks the built-in sensor temperature for a short time. if the temperature exceeds the preconfigured range, it sends an uplink immediately.
779 779  )))
... ... @@ -782,15 +782,14 @@
782 782  (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.**
783 783  
784 784  
814 +
785 785  === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) ===
786 786  
787 787  
788 -**Internal GXHT30 temperature alarm(Acquisition time: fixed at one minute)**
789 -
790 790  (((
791 791  (% class="box infomessage" %)
792 792  (((
793 -**AT+WMOD=3**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
821 +**AT+WMOD=3,**:  Enable/disable alarm mode. (0: Disabled, 1: Enabled Temperature Alarm for onboard temperature sensor)
794 794  
795 795  **AT+CITEMP=1**:  The interval between checking the alarm temperature. (In minutes)
796 796  
... ... @@ -804,120 +804,15 @@
804 804  )))
805 805  )))
806 806  
807 -(% style="color:#4f81bd" %)**Downlink Command:**
808 808  
809 -AT+WMOD=1:  A501  ,  AT+WMOD=0 :  A600
810 -
811 -AT+CITEMP=1 : A60001
812 -
813 -AT+ARTEMP=1,60  :  A70001003C
814 -
815 -AT+ARTEMP=-16,60 :  A7FFF0003C
816 -
817 -AT+LEDALARM=1  :  3601
818 -
819 -
820 -(% style="color:#4f81bd" %)**Downlink Command: AAXXXXXXXXXXXXXX**
821 -
822 -Total bytes: 8 bytes
823 -
824 -**Example: **AA0100010001003C
825 -
826 -WMOD=01
827 -
828 -CITEMP=0001
829 -
830 -TEMPlow=0001
831 -
832 -TEMPhigh=003C
833 -
834 -
835 -**DS18B20 and TMP117 Threshold Alarm**
836 -
837 -**~ AT+WMOD=1,60,-10,20**
838 -
839 -(% style="color:#4f81bd" %)**Downlink Command:**
840 -
841 -**Example: **A5013CFC180014
842 -
843 -MOD=01
844 -
845 -CITEMP=3C(S)
846 -
847 -TEMPlow=FC18
848 -
849 -TEMPhigh=0014
850 -
851 -
852 -**Fluctuation alarm for DS18B20 and TMP117(Acquisition time: minimum 1s)**
853 -
854 -**AT+WMOD=2,60,5** 
855 -
856 -(% style="color:#4f81bd" %)**Downlink Command:**
857 -
858 -**Example: **A5023C05
859 -
860 -MOD=02
861 -
862 -CITEMP=3C(S)
863 -
864 -temperature fluctuation=05
865 -
866 -
867 -==== **Sampling multiple times and uplink together** ====
868 -
869 -**AT+WMOD=3,1,60,20,-16,32,1**   
870 -
871 -Explain:
872 -
873 -* Set Working Mode to **Mode 3**
874 -* Sampling Interval is **60**s.
875 -* When there is **20** sampling dats, Device will send these data via one uplink. (max value is 60, means max 60 sampling in one uplink)
876 -* Temperature alarm range is **-16** to **32**°C,
877 -* **1** to enable temperature alarm, **0** to disable the temperature alarm. If alarm is enabled, a data will be sent immediately  if temperate exceeds the Alarm range.
878 -
879 -(% style="color:#4f81bd" %)**Downlink Command:**
880 -
881 -**Example: **A50301003C14FFF0002001
882 -
883 -MOD=03
884 -
885 -EXT=01
886 -
887 -CITEMP=003C(S)
888 -
889 -Total number of acquisitions=14
890 -
891 -TEMPlow=FFF0
892 -
893 -TEMPhigh=0020
894 -
895 -ARTEMP=01
896 -
897 -
898 -**Uplink payload( Fport=3)**
899 -
900 -**Example: CBEA**01**0992**//0A41//**09C4**
901 -
902 -BatV=CBEA
903 -
904 -EXT=01
905 -
906 -Temp1=0992  ~/~/ 24.50℃
907 -
908 -Temp2=0A41  ~/~/ 26.25℃
909 -
910 -Temp3=09C4  ~/~/ 25.00℃
911 -
912 -
913 -(% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length**
914 -
915 -(% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption**
836 +
916 916  )))
917 917  
918 -
839 +(((
919 919  === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) ===
920 920  
842 +
843 +)))
921 921  
922 922  (% _mstvisible="1" class="box infomessage" %)
923 923  (((
... ... @@ -957,6 +957,7 @@
957 957  TEMPhigh=003C
958 958  
959 959  
883 +
960 960  == 2.8 LED Indicator ==
961 961  
962 962  
... ... @@ -980,8 +980,10 @@
980 980  [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]]
981 981  
982 982  
907 +
983 983  = 3. Sensors and Accessories =
984 984  
910 +
985 985  == 3.1 E2 Extension Cable ==
986 986  
987 987  
... ... @@ -1012,6 +1012,8 @@
1012 1012  [[image:image-20220619092421-3.png||height="371" width="529"]]
1013 1013  
1014 1014  
941 +
942 +
1015 1015  == 3.2 E3 Temperature Probe ==
1016 1016  
1017 1017  
... ... @@ -1075,6 +1075,7 @@
1075 1075  )))
1076 1076  
1077 1077  
1006 +
1078 1078  == 4.1 Set Transmit Interval Time ==
1079 1079  
1080 1080  
... ... @@ -1171,6 +1171,7 @@
1171 1171  No downlink command for this feature.
1172 1172  
1173 1173  
1103 +
1174 1174  == 4.5 Quit AT Command ==
1175 1175  
1176 1176  
... ... @@ -1187,6 +1187,7 @@
1187 1187  No downlink command for this feature.
1188 1188  
1189 1189  
1120 +
1190 1190  == 4.6 Set to sleep mode ==
1191 1191  
1192 1192  
... ... @@ -1222,6 +1222,7 @@
1222 1222  0x306007806000  ~/~/  Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352
1223 1223  
1224 1224  
1156 +
1225 1225  == 4.8 Set Time Sync Mode ==
1226 1226  
1227 1227  
... ... @@ -1246,6 +1246,7 @@
1246 1246  0x28 00  ~/~/  Same As AT+SYNCMOD=0
1247 1247  
1248 1248  
1181 +
1249 1249  == 4.9 Set Time Sync Interval ==
1250 1250  
1251 1251  
... ... @@ -1262,6 +1262,7 @@
1262 1262  **0x29 0A**  ~/~/ Same as AT+SYNCTDC=0x0A
1263 1263  
1264 1264  
1198 +
1265 1265  == 4.10 Print data entries base on page. ==
1266 1266  
1267 1267  
... ... @@ -1278,6 +1278,7 @@
1278 1278  No downlink commands for feature
1279 1279  
1280 1280  
1215 +
1281 1281  == 4.11 Print last few data entries. ==
1282 1282  
1283 1283  
... ... @@ -1294,6 +1294,7 @@
1294 1294  No downlink commands for feature
1295 1295  
1296 1296  
1232 +
1297 1297  == 4.12 Clear Flash Record ==
1298 1298  
1299 1299  
... ... @@ -1331,7 +1331,7 @@
1331 1331  
1332 1332  
1333 1333  
1334 -== 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) ==
1270 +== 4.14 Modified ATWOOD command for external sensor TMP117 or DS18B20 temperature alarm ==
1335 1335  
1336 1336  
1337 1337  Feature: Set internal and external temperature sensor alarms.
... ... @@ -1376,32 +1376,39 @@
1376 1376  
1377 1377  0xA5 01 0A 11 94 29 04 ~-~- AT+WMOD=1,10,45,105  (AT+WMOD = second byte, third byte, fourth and fifth bytes divided by 100, sixth and seventh bytes divided by 100 )
1378 1378  
1379 -0XA5 01 0A F9 C0 29 04 ~-~-AT+WMOD=1,10,-16,105(Need to convert -16 to -1600 for calculation,-1600(DEC)=FFFFFFFFFFFFF9C0(HEX)  FFFFFFFFFFFFF9C0(HEX) +10000(HEX)=F9C0(HEX))
1380 -
1381 1381  0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2  (AT+WMOD = second byte, third byte, fourth byte)
1382 1382  
1383 1383  0xA5 FF ~-~- After the device receives it, upload the current alarm configuration (FPORT=8). Such as 01 0A 11 94 29 04 or 02 0A 02.
1384 1384  
1385 1385  
1320 +
1386 1386  = 5. Battery & How to replace =
1387 1387  
1323 +
1388 1388  == 5.1 Battery Type ==
1389 1389  
1390 1390  
1391 1391  (((
1328 +(((
1392 1392  LHT65N is equipped with a 2400mAH Li-MnO2 (CR17505) battery . The battery is an un-rechargeable battery with low discharge rate targeting for up to 8~~10 years use. This type of battery is commonly used in IoT devices for long-term running, such as water meters.
1393 1393  )))
1331 +)))
1394 1394  
1395 1395  (((
1396 -The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1334 +
1335 +)))
1397 1397  
1398 -
1337 +(((
1338 +(((
1339 +The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance.
1399 1399  [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]]
1400 1400  )))
1342 +)))
1401 1401  
1402 1402  The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery.
1403 1403  
1404 1404  
1347 +
1405 1405  == 5.2 Replace Battery ==
1406 1406  
1407 1407  
... ... @@ -1410,6 +1410,7 @@
1410 1410  [[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"]]
1411 1411  
1412 1412  
1356 +
1413 1413  == 5.3 Battery Life Analyze ==
1414 1414  
1415 1415  
... ... @@ -1418,6 +1418,9 @@
1418 1418  [[https:~~/~~/www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf>>https://www.dragino.com/downloads/downloads/LoRa_End_Node/Battery_Analyze/DRAGINO_Battery_Life_Guide.pdf]]
1419 1419  )))
1420 1420  
1365 +(((
1366 +
1367 +)))
1421 1421  
1422 1422  (((
1423 1423  A full detail test report for LHT65N on different frequency can be found at : [[https:~~/~~/www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0>>https://www.dropbox.com/sh/r2i3zlhsyrpavla/AAB1sZw3mdT0K7XjpHCITt13a?dl=0]]
... ... @@ -1424,8 +1424,10 @@
1424 1424  )))
1425 1425  
1426 1426  
1374 +
1427 1427  = 6. FAQ =
1428 1428  
1377 +
1429 1429  == 6.1 How to use AT Command? ==
1430 1430  
1431 1431  
... ... @@ -1646,6 +1646,7 @@
1646 1646  AT+PID:  Get or set the PID
1647 1647  
1648 1648  
1598 +
1649 1649  == 6.2 Where to use AT commands and Downlink commands ==
1650 1650  
1651 1651  
... ... @@ -1685,6 +1685,7 @@
1685 1685  [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]]
1686 1686  
1687 1687  
1638 +
1688 1688  == 6.3 How to change the uplink interval? ==
1689 1689  
1690 1690  
... ... @@ -1691,6 +1691,7 @@
1691 1691  Please see this link: [[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/>>url:http://wiki.dragino.com/xwiki/bin/view/Main/How%20to%20set%20the%20transmit%20time%20interval/||_msthash="506137" _msttexthash="5712018" style="background-color: rgb(255, 255, 255);"]]
1692 1692  
1693 1693  
1645 +
1694 1694  == 6.4 How to use TTL-USB to connect a PC to input AT commands? ==
1695 1695  
1696 1696  
... ... @@ -1709,6 +1709,7 @@
1709 1709  [[image:image-20220615154519-3.png||height="672" width="807"]]
1710 1710  
1711 1711  
1664 +
1712 1712  == 6.5 How to use TTL-USB to connect PC to upgrade firmware? ==
1713 1713  
1714 1714  
... ... @@ -1751,6 +1751,7 @@
1751 1751  Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device.
1752 1752  
1753 1753  
1707 +
1754 1754  == 6.6 Using USB-TYPE-C to connect to the computer using the AT command ==
1755 1755  
1756 1756  
... ... @@ -1770,6 +1770,7 @@
1770 1770  [[image:image-20220615154519-3.png||height="672" width="807"]]
1771 1771  
1772 1772  
1727 +
1773 1773  == 6.7 How to use  USB-TYPE-C to connect PC to upgrade firmware? ==
1774 1774  
1775 1775  
... ... @@ -1791,7 +1791,7 @@
1791 1791  [[image:image-20220623113959-5.png||height="528" width="397"]]
1792 1792  
1793 1793  (% _msthash="506146" _msttexthash="52173160" %)
1794 -Connect A8 and GND with Dupont wire for a while and then separate,enter reset mode
1749 +Press and hold the start key to restart and enter  (% _mstvisible="1" %)bootlaod(%%) mode.
1795 1795  
1796 1796  
1797 1797  
... ... @@ -1808,9 +1808,10 @@
1808 1808  [[image:image-20220620160723-8.png]]
1809 1809  
1810 1810  
1811 -Finally,Disconnect 3.3v,Connect A8 and GND with Dupont wire for a while and then separate,exit reset mode
1766 +Finally,restart reset device again
1812 1812  
1813 1813  
1769 +
1814 1814  = 7. Order Info =
1815 1815  
1816 1816  
... ... @@ -1843,7 +1843,7 @@
1843 1843  
1844 1844  **Dimension and weight**:
1845 1845  
1846 -* Device Size:  10 x 10 x 3.5 mm
1802 +* Device Size:  10 x 10 x 3.5 cm
1847 1847  * Device Weight: 120.5g
1848 1848  
1849 1849