Changes for page LHT52 - LoRaWAN Temperature & Humidity Sensor User Manual
Last modified by Mengting Qiu on 2024/04/30 14:27
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... ... @@ -27,7 +27,7 @@ 27 27 * Frequency Bands: CN470/EU433/KR920/US915/EU868/AS923/AU915 28 28 * AT Commands to change parameters 29 29 * Remote configure parameters via LoRaWAN Downlink 30 -* Firmware upgrad eable via program port30 +* Firmware upgradable via program port 31 31 * Built-in 2400mAh battery for up to 10 years of use. 32 32 * Built-in Temperature & Humidity sensor 33 33 * Optional External Sensors ... ... @@ -57,69 +57,7 @@ 57 57 * ±2°C accuracy from -55°C to +125°C 58 58 * Operating Range: -55 °C ~~ 125 °C 59 59 60 -= Connect LHT65N to IoT Server = 61 61 62 -== How does LHT65N work? == 63 - 64 -LHT65N is configured as LoRaWAN OTAA Class A mode by default. Each LHT65N is shipped with a worldwide unique set of OTAA keys. To use LHT65N in a LoRaWAN network, first, we need to put the OTAA keys in LoRaWAN Network Server and then activate LHT65N. 65 - 66 -If LHT65N is under the coverage of this LoRaWAN network. LHT65N can join the LoRaWAN network automatically. After successfully joining, LHT65N will start to measure environment temperature and humidity, and start to transmit sensor data to the LoRaWAN server. The default period for each uplink is 20 minutes. 67 - 68 - 69 -== How to Activate LHT65N? == 70 - 71 -The LHT65N has two working modes: 72 - 73 -* **Deep Sleep Mode**: LHT65N doesn’t have any LoRaWAN activation. This mode is used for storage and shipping to save battery life. 74 -* **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, LHT65 will be in STOP mode (IDLE mode), in STOP mode, LHT65N has the same power consumption as Deep Sleep mode. 75 - 76 -The LHT65N is set in deep sleep mode by default; The ACT button on the front is to switch to different modes: 77 - 78 -[[image:image-20220515123819-1.png||height="379" width="317"]] 79 - 80 -|**Behavior on ACT**|**Function**|**Action** 81 -|**Pressing ACT between 1s < time < 3s**|Test uplink status|If LHT65N is already Joined to the LoRaWAN network, LHT65N will send an uplink packet, if LHT65N has an external sensor connected, blue led will blink once. If LHT65N has no external sensor, red led will blink once. 82 -|**Pressing ACT for more than 3s**|Active Device|green led will fast blink 5 times, LHT65N will enter working mode and start to JOIN LoRaWAN network. green led will solid turn on for 5 seconds after join in network. 83 -|**Fast press ACT 5 times**|Deactivate Device|red led will solid on for 5 seconds. This means LHT65N is in Deep Sleep Mode. 84 - 85 -== LED Indicator == 86 - 87 -The LHT65N has a triple color LED which for easy shows different stage. 88 - 89 -While pressing ACT button, the LED will work as per LED status with ACT button. 90 - 91 -In a normal working state: 92 - 93 -* For each uplink, the BLUE LED or RED LED will blink once. 94 -* BLUE LED when an external sensor is connected 95 -* RED LED when an external sensor is not connected 96 -* For each success downlink, the PURPLE LED will blink once 97 - 98 - 99 -== Installation == 100 - 101 -[[image:image-20220516231650-1.png||height="632" width="620"]] 102 - 103 - 104 - 105 - 106 -= Sensors & Accessories = 107 - 108 -== E3 Temperature Probe == 109 - 110 -[[image:image-20220515080154-4.png||height="182" width="161"]] [[image:image-20220515080330-5.png||height="201" width="195"]] 111 - 112 - 113 -With Temperature sensor with 2 meters cable long 114 - 115 -* Resolution: 0.0625 °C 116 -* ±0.5°C accuracy from -10°C to +85°C 117 -* ±2°C accuracy from -55°C to +125°C 118 -* Operating Range: -40 ~~ 125 °C 119 -* -55°C to 125°C 120 -* Working voltage 2.35v ~~ 5v 121 - 122 - 123 123 = Battery & How to replace = 124 124 125 125 == Battery Type == ... ... @@ -127,7 +127,7 @@ 127 127 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. 128 128 129 129 The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance. 130 -[[image:image-20220515075034-1.png||height="208" width="644"]] 68 +[[image:image-20220515075034-1.png||height="208" width="644"]] 131 131 132 132 133 133 The minimum Working Voltage for the LHT65N is ~~ 2.5v. When battery is lower than 2.6v, it is time to change the battery. ... ... @@ -148,7 +148,7 @@ 148 148 149 149 = Order Info = 150 150 151 -Part Number: (% class="mark" %)**LHT65 N-XX**89 +Part Number: (% class="mark" %)**LHT65-XX** 152 152 153 153 **XX**: The default frequency band 154 154 ... ... @@ -161,10 +161,6 @@ 161 161 * **IN865**: LoRaWAN IN865 band 162 162 * **CN470**: LoRaWAN CN470 band 163 163 164 -**YY**: Sensor Accessories 165 - 166 -* **E3**: External Temperature Probe 167 - 168 168 = Packing Info = 169 169 170 170 **Package Includes**: ... ... @@ -187,3 +187,6 @@ 187 187 (1) This device may not cause harmful interference, and 188 188 189 189 (2) this device must accept any interference received, including interference that may cause undesired operation 124 + 125 + 126 +
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