Changes for page LHT65N -- Manual do sensor de temperatura e umidade LoRaWAN
Last modified by Xiaoling on 2023/07/18 10:12
From version 215.1
edited by Edwin Chen
on 2022/11/03 23:50
on 2022/11/03 23:50
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... ... @@ -1,1 +1,1 @@ 1 -XWiki. Edwin1 +XWiki.Xiaoling - Content
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... ... @@ -16,7 +16,6 @@ 16 16 17 17 = 1. Introduction = 18 18 19 - 20 20 == 1.1 What is LHT65N Temperature & Humidity Sensor == 21 21 22 22 ... ... @@ -45,7 +45,6 @@ 45 45 ))) 46 46 47 47 48 - 49 49 == 1.2 Features == 50 50 51 51 ... ... @@ -61,6 +61,8 @@ 61 61 * Tri-color LED to indicate working status 62 62 * Datalog feature (Max 3328 records) 63 63 62 + 63 + 64 64 == 1.3 Specification == 65 65 66 66 ... ... @@ -85,9 +85,10 @@ 85 85 * ±2°C accuracy from -55°C to +125°C 86 86 * Operating Range: -55 °C ~~ 125 °C 87 87 88 -= 2. Connect LHT65N to IoT Server = 89 89 90 90 90 += 2. Connect LHT65N to IoT Server = 91 + 91 91 == 2.1 How does LHT65N work? == 92 92 93 93 ... ... @@ -100,7 +100,6 @@ 100 100 ))) 101 101 102 102 103 - 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.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. 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. ... ... @@ -125,7 +125,6 @@ 125 125 [[image:image-20220525110604-2.png||_mstalt="427531" _mstvisible="3"]] 126 126 127 127 128 - 129 129 == 2.3 Example to join LoRaWAN network == 130 130 131 131 ... ... @@ -142,7 +142,6 @@ 142 142 ))) 143 143 144 144 145 - 146 146 === 2.3.1 Step 1: Create Device n TTN === 147 147 148 148 ... ... @@ -183,8 +183,6 @@ 183 183 [[image:image-20220522233118-7.png||_mstalt="430430" _mstvisible="3"]] 184 184 185 185 186 - 187 - 188 188 === 2.3.2 Step 2: Activate LHT65N by pressing the ACT button for more than 5 seconds. === 189 189 190 190 ... ... @@ -195,7 +195,6 @@ 195 195 [[image:image-20220522233300-8.png||_mstalt="428389" _mstvisible="3" height="219" width="722"]] 196 196 197 197 198 - 199 199 == 2.4 Uplink Payload ( Fport~=2) == 200 200 201 201 ... ... @@ -243,6 +243,8 @@ 243 243 * The 7th byte (EXT #): defines the external sensor model. 244 244 * 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.) 245 245 241 + 242 + 246 246 === 2.4.1 Decoder in TTN V3 === 247 247 248 248 ... ... @@ -254,7 +254,6 @@ 254 254 [[image:image-20220522234118-10.png||_mstalt="451464" _mstvisible="3" height="353" width="729"]] 255 255 256 256 257 - 258 258 === 2.4.2 BAT-Battery Info === 259 259 260 260 ... ... @@ -271,6 +271,8 @@ 271 271 * BAT status=(0Xcba4>>14)&0xFF=11(B),very good 272 272 * Battery Voltage =0xCBF6&0x3FFF=0x0BA4=2980mV 273 273 270 + 271 + 274 274 === 2.4.3 Built-in Temperature === 275 275 276 276 ... ... @@ -282,6 +282,8 @@ 282 282 283 283 * Temperature: (0xF5C6-65536)/100=-26.18℃ 284 284 283 + 284 + 285 285 === 2.4.4 Built-in Humidity === 286 286 287 287 ... ... @@ -289,6 +289,8 @@ 289 289 290 290 * Humidity: 0x025C/10=60.4% 291 291 292 + 293 + 292 292 === 2.4.5 Ext # === 293 293 294 294 ... ... @@ -297,10 +297,8 @@ 297 297 [[image:image-20220523152822-17.png||_mstalt="454545" _mstvisible="3"]] 298 298 299 299 300 - 301 301 === 2.4.6 Ext value === 302 302 303 - 304 304 ==== 2.4.6.1 Ext~=1, E3 Temperature Sensor ==== 305 305 306 306 ... ... @@ -323,7 +323,6 @@ 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℃ 324 324 325 325 326 - 327 327 ==== 2.4.6.2 Ext~=9, E3 sensor with Unix Timestamp ==== 328 328 329 329 ... ... @@ -387,6 +387,8 @@ 387 387 * (% style="color:blue" %)**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. 388 388 * (% style="color:blue" %)**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) 389 389 389 + 390 + 390 390 ==== 2.4.6.3 Ext~=6, ADC Sensor (use with E2 Cable) ==== 391 391 392 392 ... ... @@ -435,7 +435,6 @@ 435 435 [[image:image-20220628151143-7.png]] 436 436 437 437 438 - 439 439 ==== 2.4.6.4 Ext~=2 TMP117 Sensor (Since Firmware v1.3) ==== 440 440 441 441 ... ... @@ -452,7 +452,6 @@ 452 452 The external cable NE2 can be use for MOD4 and MOD8 453 453 454 454 455 - 456 456 ==== 2.4.6.5 Ext~=4 Interrupt Mode (Since Firmware v1.3) ==== 457 457 458 458 ... ... @@ -499,7 +499,6 @@ 499 499 [[image:image-20220906101145-3.png]] 500 500 501 501 502 - 503 503 ==== 2.4.6.6 Ext~=8 Counting Mode(Since Firmware v1.3) ==== 504 504 505 505 ... ... @@ -551,7 +551,6 @@ 551 551 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) 552 552 553 553 554 - 555 555 == 2.5 Show data on Datacake == 556 556 557 557 ... ... @@ -599,7 +599,6 @@ 599 599 [[image:image-20220523000825-10.png||_mstalt="450619" _mstvisible="3" height="413" width="728"]] 600 600 601 601 602 - 603 603 == 2.6 Datalog Feature == 604 604 605 605 ... ... @@ -608,7 +608,6 @@ 608 608 ))) 609 609 610 610 611 - 612 612 === 2.6.1 Ways to get datalog via LoRaWAN === 613 613 614 614 ... ... @@ -631,7 +631,6 @@ 631 631 [[image:image-20220703111700-2.png||height="381" width="1119"]] 632 632 633 633 634 - 635 635 === 2.6.2 Unix TimeStamp === 636 636 637 637 ... ... @@ -648,10 +648,10 @@ 648 648 649 649 [[image:image-20220523001219-12.png||_mstalt="450827" _mstvisible="3" height="298" width="720"]] 650 650 645 + 651 651 So, we can use AT+TIMESTAMP=1611889405 or downlink 3060137afd00 to set the current time 2021 – Jan ~-~- 29 Friday 03:03:25 652 652 653 653 654 - 655 655 === 2.6.3 Set Device Time === 656 656 657 657 ... ... @@ -675,10 +675,8 @@ 675 675 (% 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.** 676 676 ))) 677 677 678 -((( 679 - 680 -))) 681 681 673 + 682 682 ((( 683 683 **2. Manually Set Time** 684 684 ))) ... ... @@ -688,7 +688,6 @@ 688 688 ))) 689 689 690 690 691 - 692 692 === 2.6.4 Poll sensor value === 693 693 694 694 ... ... @@ -706,7 +706,6 @@ 706 706 Uplink Internal =5s,means LHT65N will send one packet every 5s. range 5~~255s. 707 707 708 708 709 - 710 710 === 2.6.5 Datalog Uplink payload === 711 711 712 712 ... ... @@ -781,7 +781,6 @@ 781 781 Unix time is 0x60066009=1611030423s=21/1/19 04:27:03 782 782 783 783 784 - 785 785 == 2.7 Alarm Mode & Feature "Multi sampling, one uplink" == 786 786 787 787 ... ... @@ -793,11 +793,10 @@ 793 793 (% style="color:red" %)**Note: alarm mode adds a little power consumption, and we recommend extending the normal read time when this feature is enabled.** 794 794 795 795 796 - 797 797 === 2.7.1 ALARM MODE ( Since v1.3.1 firmware) === 798 798 799 799 800 -**Internal GXHT30 temperature alarm** 788 +**Internal GXHT30 temperature alarm(Acquisition time: fixed at one minute)** 801 801 802 802 ((( 803 803 (% class="box infomessage" %) ... ... @@ -861,7 +861,7 @@ 861 861 TEMPhigh=0014 862 862 863 863 864 -**Fluctuation alarm for DS18B20 and TMP117** 852 +**Fluctuation alarm for DS18B20 and TMP117(Acquisition time: minimum 1s)** 865 865 866 866 **AT+WMOD=2,60,5** 867 867 ... ... @@ -878,8 +878,16 @@ 878 878 879 879 ==== **Sampling multiple times and uplink together** ==== 880 880 881 -**AT+WMOD=3,1,60,20,-16,32,1** ~/~/ Mode 3, the collection interval is 60s, the total number of collection is 20 times, and the data of these 20 times will be sent to the 20th time, with a maximum of 60 groups, the normal working temperature range is -10 to 32°C, 1 is to open the temperature alarm, 0 is to close the temperature alarm, and the temperature is turned on. After the alarm, if the temperature collected at the current time exceeds the normal working temperature, a data will be sent immediately.869 +**AT+WMOD=3,1,60,20,-16,32,1** 882 882 871 +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 + 883 883 (% style="color:#4f81bd" %)**Downlink Command:** 884 884 885 885 **Example: **A50301003C14FFF0002001 ... ... @@ -901,7 +901,7 @@ 901 901 902 902 **Uplink payload( Fport=3)** 903 903 904 -**Example: **CBEA0109920A4109C4900 +**Example: CBEA**01**0992**//0A41//**09C4** 905 905 906 906 BatV=CBEA 907 907 ... ... @@ -917,16 +917,11 @@ 917 917 (% style="color:red" %)**Note: This uplink will automatically select the appropriate DR according to the data length** 918 918 919 919 (% style="color:red" %)** In this mode, the temperature resolution of ds18b20 is 0.25℃ to save power consumption** 920 - 921 - 922 - 923 923 ))) 924 924 925 - (((918 + 926 926 === 2.7.2 ALARM MODE ( Before v1.3.1 firmware) === 927 927 928 - 929 -))) 930 930 931 931 (% _mstvisible="1" class="box infomessage" %) 932 932 ((( ... ... @@ -966,7 +966,6 @@ 966 966 TEMPhigh=003C 967 967 968 968 969 - 970 970 == 2.8 LED Indicator == 971 971 972 972 ... ... @@ -981,6 +981,8 @@ 981 981 * RED LED when external sensor is not connected 982 982 * For each success downlink, the PURPLE LED will blink once 983 983 974 + 975 + 984 984 == 2.9 installation == 985 985 986 986 ... ... @@ -988,10 +988,8 @@ 988 988 [[image:image-20220516231650-1.png||_mstalt="428597" _mstvisible="3" height="436" width="428"]] 989 989 990 990 991 - 992 992 = 3. Sensors and Accessories = 993 993 994 - 995 995 == 3.1 E2 Extension Cable == 996 996 997 997 ... ... @@ -1022,8 +1022,6 @@ 1022 1022 [[image:image-20220619092421-3.png||height="371" width="529"]] 1023 1023 1024 1024 1025 - 1026 - 1027 1027 == 3.2 E3 Temperature Probe == 1028 1028 1029 1029 ... ... @@ -1038,6 +1038,8 @@ 1038 1038 * Operating Range: -40 ~~ 125 °C 1039 1039 * Working voltage 2.35v ~~ 5v 1040 1040 1029 + 1030 + 1041 1041 = 4. Configure LHT65N via AT command or LoRaWAN downlink = 1042 1042 1043 1043 ... ... @@ -1085,7 +1085,6 @@ 1085 1085 ))) 1086 1086 1087 1087 1088 - 1089 1089 == 4.1 Set Transmit Interval Time == 1090 1090 1091 1091 ... ... @@ -1107,6 +1107,8 @@ 1107 1107 1108 1108 * **Example 2**: Downlink Payload: 0100003C ~/~/ Set Transmit Interval (TDC) = 60 seconds 1109 1109 1099 + 1100 + 1110 1110 == 4.2 Set External Sensor Mode == 1111 1111 1112 1112 ... ... @@ -1130,6 +1130,8 @@ 1130 1130 1131 1131 * 0xA20702003c: Same as AT+SETCNT=60 1132 1132 1124 + 1125 + 1133 1133 == 4.3 Enable/Disable uplink Temperature probe ID == 1134 1134 1135 1135 ... ... @@ -1160,6 +1160,8 @@ 1160 1160 * **0xA800** **~-~->** AT+PID=0 1161 1161 * **0xA801** **~-~->** AT+PID=1 1162 1162 1156 + 1157 + 1163 1163 == 4.4 Set Password == 1164 1164 1165 1165 ... ... @@ -1176,7 +1176,6 @@ 1176 1176 No downlink command for this feature. 1177 1177 1178 1178 1179 - 1180 1180 == 4.5 Quit AT Command == 1181 1181 1182 1182 ... ... @@ -1193,7 +1193,6 @@ 1193 1193 No downlink command for this feature. 1194 1194 1195 1195 1196 - 1197 1197 == 4.6 Set to sleep mode == 1198 1198 1199 1199 ... ... @@ -1211,6 +1211,8 @@ 1211 1211 1212 1212 * There is no downlink command to set to Sleep mode. 1213 1213 1207 + 1208 + 1214 1214 == 4.7 Set system time == 1215 1215 1216 1216 ... ... @@ -1227,7 +1227,6 @@ 1227 1227 0x306007806000 ~/~/ Set timestamp to 0x(6007806000),Same as AT+TIMESTAMP=1611104352 1228 1228 1229 1229 1230 - 1231 1231 == 4.8 Set Time Sync Mode == 1232 1232 1233 1233 ... ... @@ -1252,7 +1252,6 @@ 1252 1252 0x28 00 ~/~/ Same As AT+SYNCMOD=0 1253 1253 1254 1254 1255 - 1256 1256 == 4.9 Set Time Sync Interval == 1257 1257 1258 1258 ... ... @@ -1269,7 +1269,6 @@ 1269 1269 **0x29 0A** ~/~/ Same as AT+SYNCTDC=0x0A 1270 1270 1271 1271 1272 - 1273 1273 == 4.10 Print data entries base on page. == 1274 1274 1275 1275 ... ... @@ -1286,7 +1286,6 @@ 1286 1286 No downlink commands for feature 1287 1287 1288 1288 1289 - 1290 1290 == 4.11 Print last few data entries. == 1291 1291 1292 1292 ... ... @@ -1303,7 +1303,6 @@ 1303 1303 No downlink commands for feature 1304 1304 1305 1305 1306 - 1307 1307 == 4.12 Clear Flash Record == 1308 1308 1309 1309 ... ... @@ -1319,6 +1319,8 @@ 1319 1319 1320 1320 * Example: 0xA301 ~/~/ Same as AT+CLRDTA 1321 1321 1312 + 1313 + 1322 1322 == 4.13 Auto Send None-ACK messages == 1323 1323 1324 1324 ... ... @@ -1337,9 +1337,11 @@ 1337 1337 1338 1338 * Example: 0x3401 ~/~/ Same as AT+PNACKMD=1 1339 1339 1340 -== 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm == 1341 1341 1342 1342 1334 +== 4.14 Modified WMOD command for external sensor TMP117 or DS18B20 temperature alarm(Since firmware 1.3.0) == 1335 + 1336 + 1343 1343 Feature: Set internal and external temperature sensor alarms. 1344 1344 1345 1345 (% border="1" cellspacing="4" style="background-color:#ffffcc; color:green; width:500px" %) ... ... @@ -1382,39 +1382,32 @@ 1382 1382 1383 1383 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 ) 1384 1384 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 + 1385 1385 0xA5 02 0A 02 ~-~- AT+WMOD=2,10,2 (AT+WMOD = second byte, third byte, fourth byte) 1386 1386 1387 1387 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. 1388 1388 1389 1389 1390 - 1391 1391 = 5. Battery & How to replace = 1392 1392 1393 - 1394 1394 == 5.1 Battery Type == 1395 1395 1396 1396 1397 1397 ((( 1398 -((( 1399 1399 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. 1400 1400 ))) 1401 -))) 1402 1402 1403 1403 ((( 1404 - 1405 -))) 1406 - 1407 -((( 1408 -((( 1409 1409 The discharge curve is not linear so can't simply use percentage to show the battery level. Below is the battery performance. 1397 + 1398 + 1410 1410 [[image:image-20220515075034-1.png||_mstalt="428961" _mstvisible="4" height="208" width="644"]] 1411 1411 ))) 1412 -))) 1413 1413 1414 1414 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. 1415 1415 1416 1416 1417 - 1418 1418 == 5.2 Replace Battery == 1419 1419 1420 1420 ... ... @@ -1423,7 +1423,6 @@ 1423 1423 [[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"]] 1424 1424 1425 1425 1426 - 1427 1427 == 5.3 Battery Life Analyze == 1428 1428 1429 1429 ... ... @@ -1432,9 +1432,6 @@ 1432 1432 [[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]] 1433 1433 ))) 1434 1434 1435 -((( 1436 - 1437 -))) 1438 1438 1439 1439 ((( 1440 1440 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]] ... ... @@ -1441,10 +1441,8 @@ 1441 1441 ))) 1442 1442 1443 1443 1444 - 1445 1445 = 6. FAQ = 1446 1446 1447 - 1448 1448 == 6.1 How to use AT Command? == 1449 1449 1450 1450 ... ... @@ -1665,7 +1665,6 @@ 1665 1665 AT+PID: Get or set the PID 1666 1666 1667 1667 1668 - 1669 1669 == 6.2 Where to use AT commands and Downlink commands == 1670 1670 1671 1671 ... ... @@ -1705,7 +1705,6 @@ 1705 1705 [[image:image-20220615092939-4.png||_mstalt="434460" height="448" width="894"]] 1706 1706 1707 1707 1708 - 1709 1709 == 6.3 How to change the uplink interval? == 1710 1710 1711 1711 ... ... @@ -1712,7 +1712,6 @@ 1712 1712 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);"]] 1713 1713 1714 1714 1715 - 1716 1716 == 6.4 How to use TTL-USB to connect a PC to input AT commands? == 1717 1717 1718 1718 ... ... @@ -1731,7 +1731,6 @@ 1731 1731 [[image:image-20220615154519-3.png||height="672" width="807"]] 1732 1732 1733 1733 1734 - 1735 1735 == 6.5 How to use TTL-USB to connect PC to upgrade firmware? == 1736 1736 1737 1737 ... ... @@ -1774,7 +1774,6 @@ 1774 1774 Finally, unplug the DuPont cable on port4, and then use the DuPont cable to short circuit port3 and port1 to reset the device. 1775 1775 1776 1776 1777 - 1778 1778 == 6.6 Using USB-TYPE-C to connect to the computer using the AT command == 1779 1779 1780 1780 ... ... @@ -1794,7 +1794,6 @@ 1794 1794 [[image:image-20220615154519-3.png||height="672" width="807"]] 1795 1795 1796 1796 1797 - 1798 1798 == 6.7 How to use USB-TYPE-C to connect PC to upgrade firmware? == 1799 1799 1800 1800 ... ... @@ -1816,7 +1816,7 @@ 1816 1816 [[image:image-20220623113959-5.png||height="528" width="397"]] 1817 1817 1818 1818 (% _msthash="506146" _msttexthash="52173160" %) 1819 - Pressandholdthestartkeytoestartand enter(% _mstvisible="1" %)bootlaod(%%)mode.1794 +Connect A8 and GND with Dupont wire for a while and then separate,enter reset mode 1820 1820 1821 1821 1822 1822 ... ... @@ -1833,10 +1833,9 @@ 1833 1833 [[image:image-20220620160723-8.png]] 1834 1834 1835 1835 1836 -Finally, restart resetdeviceagain1811 +Finally,Disconnect 3.3v,Connect A8 and GND with Dupont wire for a while and then separate,exit reset mode 1837 1837 1838 1838 1839 - 1840 1840 = 7. Order Info = 1841 1841 1842 1842 ... ... @@ -1857,6 +1857,7 @@ 1857 1857 1858 1858 * (% style="color:red" %)**E3**(%%): External Temperature Probe 1859 1859 1834 + 1860 1860 = 8. Packing Info = 1861 1861 1862 1862 ... ... @@ -1867,14 +1867,16 @@ 1867 1867 1868 1868 **Dimension and weight**: 1869 1869 1870 -* Device Size: 10 x 10 x 3.5 cm1845 +* Device Size: 10 x 10 x 3.5 mm 1871 1871 * Device Weight: 120.5g 1872 1872 1848 + 1873 1873 = 9. Reference material = 1874 1874 1875 1875 1876 1876 * [[Datasheet, photos, decoder, firmware>>https://www.dropbox.com/sh/una19zsni308dme/AACOKp6J2RF5TMlKWT5zU3RTa?dl=0||_msthash="504975" _msttexthash="51420512"]] 1877 1877 1854 + 1878 1878 = 10. FCC Warning = 1879 1879 1880 1880