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Last modified by Edwin Chen on 2025/06/26 11:53
From version 8.1
edited by Edwin Chen
on 2022/12/17 16:55
Change comment: There is no comment for this version
To version 4.1
edited by Edwin Chen
on 2022/12/17 16:45
Change comment: There is no comment for this version

Summary

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1 -**~ Table of Contents：**
1 +~= Overview =
2 2  
3 -{{toc/}}
4 -
5 -= Overview =
6 -
7 7  This URL introduce different methods to detect the water / liquid level.
8 8  
9 9  
10 -= Flow switch =
6 +~= Use a flow switch =
11 11  
12 -== How it works ==
13 -
14 14  Below is an example of flow switch. and product link:
15 15  
16 16  [[https:~~/~~/www.amazon.com/Float-Switch-Septic-System-Sump/dp/B0064BHEVM/ref=sr_1_5?crid=2PCMSD63FBP42&keywords=float%2Bswitch&qid=1671230997&refinements=p_72%3A1248909011&rnid=1248907011&s=hi&sprefix=float%2Bswitch%2Caps%2C155&sr=1-5&th=1 >>https://www.amazon.com/Float-Switch-Septic-System-Sump/dp/B0064BHEVM/ref=sr_1_5?crid=2PCMSD63FBP42&keywords=float%2Bswitch&qid=1671230997&refinements=p_72%3A1248909011&rnid=1248907011&s=hi&sprefix=float%2Bswitch%2Caps%2C155&sr=1-5&th=1]]
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17 17  
18 18  [[image:image-20221217164157-1.png||height="329" width="486"]]
19 19  
20 -[[image:image-20221217164432-3.png||height="282" width="501"]][[image:image-20221217164337-2.png||height="279" width="431"]]
14 +[[image:image-20221217164432-3.png||height="282" width="501"]][[image:image-20221217164337-2.png||height="327" width="505"]]
21 21  
22 -The switch will switch on/off to show if the water / liquid has dedicate level.
23 23  
24 -
25 -To use such switch with Dragino Products, use can connect it to LSN50v2 use the same way as a door switch. See reference link:
26 -
27 -[[http:~~/~~/wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#H2.4.5DigitalInterrupt >>http://wiki.dragino.com/xwiki/bin/view/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LSN50%20%26%20LSN50-V2%20-%20LoRaWAN%20Sensor%20Node%20User%20Manual/#H2.4.5DigitalInterrupt]]
28 -
29 -
30 -== Advantage & Disadvantage ==
31 -
32 -**Advantage** : Reliable , Easy to install & Immue to different environment.
33 -
34 -**Disadvantage**: Only be able to detect one speicify level. Not able to detect full range of water.
35 -
36 -
37 -
38 -
39 -
17 +Such switch has NC and NO which will action when