Wiki source code of LHT65N-DC Connection Instruction
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| 5 | (% class="wikigeneratedid" %) | ||
| 6 | **Table of Contents:** | ||
| 7 | |||
| 8 | {{toc/}} | ||
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| 12 | |||
| 13 | = 1.Door sensor = | ||
| 14 | |||
| 15 | |||
| 16 | Application: Connect to Door Sensor detect door open / close and send to IoT server | ||
| 17 | |||
| 18 | Sensor Type: Normal Close Type Door Sensor as below | ||
| 19 | |||
| 20 | [[image:image-20240424100239-8.png||height="227" width="946"]] | ||
| 21 | |||
| 22 | |||
| 23 | == 1.1 Hardware Connection == | ||
| 24 | |||
| 25 | * ((( | ||
| 26 | LHT65N VDD <~-~-> one wire of Door Sensor | ||
| 27 | ))) | ||
| 28 | * ((( | ||
| 29 | LHT65N Interrupt Pin <~-~-> one wire of Door Sensor | ||
| 30 | ))) | ||
| 31 | |||
| 32 | [[image:image-20240424100415-9.png||height="355" width="796"]] | ||
| 33 | |||
| 34 | == 1.2 Software Configuration == | ||
| 35 | |||
| 36 | Set LHT65N to Interrupt Mode so device will uplink when there is open/close event | ||
| 37 | |||
| 38 | * ((( | ||
| 39 | AT Command : AT+EXT=4,1 | ||
| 40 | ))) | ||
| 41 | * ((( | ||
| 42 | Downlink Command: 0xA20401 : Same as AT+EXT=4,1 | ||
| 43 | ))) | ||
| 44 | |||
| 45 | Enlarge the TDC time so LHT65N will send Keep Alive message every 24 hours so to save battery life. | ||
| 46 | |||
| 47 | * ((( | ||
| 48 | AT Command :AT+TDC=86400000 | ||
| 49 | ))) | ||
| 50 | * ((( | ||
| 51 | Downlink Command: 0x01015180 Same as AT+TDC=86400000 | ||
| 52 | ))) | ||
| 53 | |||
| 54 | == 1.3 Test Result == | ||
| 55 | |||
| 56 | Move the magnet part to generate Open / Close event and check the uplink packet in the platform. | ||
| 57 | |||
| 58 | [[image:image-20240424100951-10.jpeg||height="333" width="741"]] | ||
| 59 | |||
| 60 | [[image:image-20240424100951-11.png||height="280" width="1247"]] | ||
| 61 | |||
| 62 | |||
| 63 | == 1.4 Power Consumption Notice == | ||
| 64 | |||
| 65 | |||
| 66 | Connect a Normal Close Door Sensor won't increase sleep current (~~6uA). The power consumption mainly depends on the how many open/close event happen every day. | ||
| 67 | |||
| 68 | |||
| 69 | |||
| 70 | |||
| 71 | = 2. Water Sensor = | ||
| 72 | |||
| 73 | |||
| 74 | Application: Connect to Water leakage Sensor detect door open / close and send to IoT server | ||
| 75 | |||
| 76 | |||
| 77 | == 2.1 Hardware Connection == | ||
| 78 | |||
| 79 | * LHT65N VDD <~-~-> one wire of water leakage Sensor | ||
| 80 | * LHT65N Interrupt Pin <~-~-> one wire of water leakage Sensor | ||
| 81 | |||
| 82 | == 2.2 Software Configuration == | ||
| 83 | |||
| 84 | Set LHT65N to Interrupt Mode so device will uplink when there is open/close event | ||
| 85 | |||
| 86 | * AT Command : AT+EXT=4,1 | ||
| 87 | * Downlink Command: 0xA20401 : Same as AT+EXT=4,1 | ||
| 88 | |||
| 89 | Enlarge the TDC time so LHT65N will send Keep Alive message every 24 hours so to save battery life. | ||
| 90 | |||
| 91 | * AT Command :AT+TDC=86400000 | ||
| 92 | * Downlink Command: 01015180 Same as AT+TDC=86400000 | ||
| 93 | |||
| 94 | == 2.3 Test Result: == | ||
| 95 | |||
| 96 | |||
| 97 | Partial contact of the sensor probe with water generates open/close events and checks for upstream packets in the platform. | ||
| 98 | |||
| 99 | [[image:image-20240424101908-12.png||height="331" width="435"]] | ||
| 100 | |||
| 101 | [[image:image-20240424101927-13.png||height="303" width="766"]] | ||
| 102 | |||
| 103 | |||
| 104 | == 2.4 Power Consumption Notice: == | ||
| 105 | |||
| 106 | * Connecting the water leak sensor increases the sleep current (~~40uA). When using a water leak sensor, the battery life will be reduced. | ||
| 107 | |||
| 108 | [[image:image-20240424102048-14.png||height="495" width="926"]] | ||
| 109 | |||
| 110 | When the probe comes into contact with water, it will increase the low power consumption by about 300uA. Then when it is out of contact with water, the power consumption will slowly drop. The reason for the slow drop is that there are water beads hanging on the surface of the probe. When it dries, It will reduce power consumption. | ||
| 111 | |||
| 112 |