Last modified by Bei Jinggeng on 2025/01/10 15:51
<
From version < 74.5 >
edited by Xiaoling
on 2023/08/19 16:07
To version < 66.1 >
edited by Saxer Lin
on 2023/08/17 18:31
>
Change comment: Uploaded new attachment "image-20230817183137-1.png", version {1}

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1 -XWiki.Xiaoling
1 +XWiki.Saxer
Content
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42 42  * 8500mAh Battery for long term use
43 43  
44 44  
45 -
46 46  == 1.3 Specification ==
47 47  
48 48  
... ... @@ -81,7 +81,6 @@
81 81  * LoRa Transmit Mode: 125mA @ 20dBm, 82mA @ 14dBm
82 82  
83 83  
84 -
85 85  == 1.4 Sleep mode and working mode ==
86 86  
87 87  
... ... @@ -110,7 +110,6 @@
110 110  |(% style="width:167px" %)Fast press ACT 5 times.|(% style="width:117px" %)Deactivate Device|(% style="width:225px" %)(% style="color:red" %)**Red led**(%%) will solid on for 5 seconds. Means device is in Deep Sleep Mode.
111 111  
112 112  
113 -
114 114  == 1.6 BLE connection ==
115 115  
116 116  
... ... @@ -587,15 +587,11 @@
587 587  
588 588  ==== 2.3.2.10  MOD~=10 (PWM input capture and output mode，Since firmware v1.2) ====
589 589  
590 -
591 591  In this mode, the uplink can perform PWM input capture, and the downlink can perform PWM output.
592 592  
593 -[[It should be noted when using PWM mode.>>||anchor="H2.3.3.12A0PWMMOD"]]
594 594  
595 -
596 596  ===== 2.3.2.10.a  Uplink, PWM input capture =====
597 597  
598 -
599 599  [[image:image-20230817172209-2.png||height="439" width="683"]]
600 600  
601 601  (% border="1" cellspacing="4" style="background-color:#f2f2f2; width:690px" %)
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617 617  [[image:image-20230817170702-1.png||height="161" width="1044"]]
618 618  
619 619  
620 -When the device detects the following PWM signal ,decoder will converts the pulse period and high-level duration to frequency and duty cycle.
613 +(% style="color:blue" %)**AT+PWMSET=AA（Default is 0）  ==> Corresponding downlink: 0B AA**
621 621  
622 -**Frequency：**
615 +When AA is 0, the unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ. 
623 623  
624 -(% class="MsoNormal" %)
625 -(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=0, **(% lang="EN-US" %)Frequency= 1000000/(%%)Pulse period（HZ）;
617 +When AA is 1, the unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ. 
626 626  
627 -(% class="MsoNormal" %)
628 -(% lang="EN-US" %)If (% style="background-attachment:initial; background-clip:initial; background-image:initial; background-origin:initial; background-position:initial; background-repeat:initial; background-size:initial; color:blue; font-family:Arial,sans-serif" %)**AT+PWMSET**(%%)**=1, **(% lang="EN-US" %)Frequency= 1000/(%%)Pulse period（HZ）;
629 629  
630 -
631 -(% class="MsoNormal" %)
632 -**Duty cycle:**
633 -
634 -Duty cycle= Duration of high level/ Pulse period*100 ~(%).
635 -
636 -[[image:image-20230818092200-1.png||height="344" width="627"]]
637 -
638 -
639 639  ===== 2.3.2.10.b  Downlink, PWM output =====
640 640  
641 -
642 642  [[image:image-20230817173800-3.png||height="412" width="685"]]
643 643  
644 644  Downlink:  (% style="color:#037691" %)**0B xx xx xx yy zz zz**
... ... @@ -883,25 +883,6 @@
883 883  ==== 2.3.3.12  PWM MOD ====
884 884  
885 885  
886 -* (((
887 -The maximum voltage that the SDA pin of SN50v3 can withstand is 3.6V, and it cannot exceed this voltage value, otherwise the chip may be burned.
888 -)))
889 -* (((
890 -If the PWM pin connected to the SDA pin cannot maintain a high level when it is not working, you need to remove the resistor R2 or replace it with a resistor with a larger resistance, otherwise a sleep current of about 360uA will be generated. The position of the resistor is shown in the figure below:
891 -)))
892 -
893 - [[image:image-20230817183249-3.png||height="320" width="417"]]
894 -
895 -* (((
896 -The signal captured by the input should preferably be processed by hardware filtering and then connected in. The software processing method is to capture four values, discard the first captured value, and then take the middle value of the second, third, and fourth captured values.
897 -)))
898 -* (((
899 -Since the device can only detect a pulse period of 50ms when [[AT+PWMSET=0>>||anchor="H3.3.8PWMsetting"]] (counting in microseconds), it is necessary to change the value of PWMSET according to the frequency of input capture.
900 -
901 -
902 -
903 -)))
904 -
905 905  ==== 2.3.3.13  Working MOD ====
906 906  
907 907  
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923 923  * 9: MOD10
924 924  
925 925  
926 -
927 927  == 2.4 Payload Decoder file ==
928 928  
929 929  
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954 954  * LoRaWAN Downlink.  Instruction for different platforms: See [[IoT LoRaWAN Server>>http://wiki.dragino.com/xwiki/bin/view/Main/]] section.
955 955  
956 956  
957 -
958 958  == 3.2 General Commands ==
959 959  
960 960  
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1003 1003  * Example 2: Downlink Payload: 0100003C  ~/~/  Set Transmit Interval (TDC) = 60 seconds
1004 1004  
1005 1005  
1006 -
1007 1007  === 3.3.2 Get Device Status ===
1008 1008  
1009 1009  
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1053 1053  * Example 4: Downlink Payload: 06000201  **~-~-->**  AT+INTMOD3=1
1054 1054  
1055 1055  
1056 -
1057 1057  === 3.3.4 Set Power Output Duration ===
1058 1058  
1059 1059  
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1087 1087  * Example 2: Downlink Payload: 0701F4  **~-~-->**  AT+5VT=500
1088 1088  
1089 1089  
1090 -
1091 1091  === 3.3.5 Set Weighing parameters ===
1092 1092  
1093 1093  
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1114 1114  * Example 3: Downlink Payload: 08020FA0  **~-~-->**  AT+WEIGAP=400.0
1115 1115  
1116 1116  
1117 -
1118 1118  === 3.3.6 Set Digital pulse count value ===
1119 1119  
1120 1120  
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1139 1139  * Example 2: Downlink Payload: 0902000003E8  **~-~-->**  AT+SETCNT=2,1000
1140 1140  
1141 1141  
1142 -
1143 1143  === 3.3.7 Set Workmode ===
1144 1144  
1145 1145  
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1165 1165  * Example 2: Downlink Payload: 0A04  **~-~-->**  AT+MOD=4
1166 1166  
1167 1167  
1168 -
1169 -=== 3.3.8 PWM setting ===
1170 -
1171 -
1172 -Feature: Set the time acquisition unit for PWM input capture.
1173 -
1174 -(% style="color:blue" %)**AT Command: AT+PWMSET**
1175 -
1176 -(% border="1" cellspacing="4" style="background-color:#f2f2f2; width:510px" %)
1177 -|=(% style="width: 155px;background-color:#D9E2F3;color:#0070C0" %)**Command Example**|=(% style="width: 197px;background-color:#D9E2F3;color:#0070C0" %)**Function**|=(% style="width: 158px;background-color:#D9E2F3;color:#0070C0" %)**Response**
1178 -|(% style="width:154px" %)AT+PWMSET=?|(% style="width:196px" %)0|(% style="width:157px" %)(((
1179 -0(default)
1180 -
1181 -OK
1182 -)))
1183 -|(% style="width:154px" %)AT+PWMSET=0|(% style="width:196px" %)The unit of PWM capture time is microsecond. The capture frequency range is between 20HZ and 100000HZ.   |(% style="width:157px" %)(((
1184 -OK
1185 -
1186 -)))
1187 -|(% style="width:154px" %)AT+PWMSET=1|(% style="width:196px" %)The unit of PWM capture time is millisecond.  The capture frequency range is between 5HZ and 250HZ. |(% style="width:157px" %)OK
1188 -
1189 -(% style="color:blue" %)**Downlink Command: 0x0C**
1190 -
1191 -Format: Command Code (0x0C) followed by 1 bytes.
1192 -
1193 -* Example 1: Downlink Payload: 0C00  **~-~-->**  AT+PWMSET=0
1194 -* Example 2: Downlink Payload: 0C01  **~-~-->**  AT+PWMSET=1
1195 -
1196 -
1197 -
1198 1198  = 4. Battery & Power Consumption =
1199 1199  
1200 1200  
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1221 1221  * Update through UART TTL interface: **[[Instruction>>url:http://wiki.dragino.com/xwiki/bin/view/Main/UART%20Access%20for%20LoRa%20ST%20v4%20base%20model/#H1.LoRaSTv4baseHardware]]**.
1222 1222  
1223 1223  
1224 -
1225 1225  = 6. FAQ =
1226 1226  
1227 1227  == 6.1 Where can i find source code of SN50v3-LB? ==
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1231 1231  * **[[Software Source Code & Compile instruction>>https://github.com/dragino/SN50v3]].**
1232 1232  
1233 1233  
1234 -
1235 1235  == 6.2 How to generate PWM Output in SN50v3-LB? ==
1236 1236  
1237 1237  
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1272 1272  * (% style="color:red" %)**NH**(%%): No Hole
1273 1273  
1274 1274  
1275 -
1276 1276  = 8. ​Packing Info =
1277 1277  
1278 1278  
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1288 1288  * Weight / pcs : g
1289 1289  
1290 1290  
1291 -
1292 1292  = 9. Support =
1293 1293  
1294 1294  
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