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From version < 29.1 >
edited by Edwin Chen
on 2022/06/08 23:46
To version < 17.1 >
edited by Edwin Chen
on 2022/06/08 23:15
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54 54  [[image:image-20220530002453-3.png||height="262" width="493"]]
55 55  
56 56  
57 -= Use AT Command =
58 58  
59 -== Access AT Commands ==
60 -
61 -GroPoint Air supports AT Command set in the stock firmware. You can use a USB to TTL adapter to connect to GroPoint Air for using AT command, as below.
62 -
63 -[[image:Main.User Manual for LoRaWAN End Nodes.LLMS01-LoRaWAN Leaf Moisture Sensor User Manual.WebHome@1654593668970-604.png||height="297" width="474"]]
64 -
65 -**Connection:**
66 -
67 -(% style="background-color:yellow" %)** USB TTL GND <~-~-~-~-> GND**
68 -
69 -(% style="background-color:yellow" %)** USB TTL TXD <~-~-~-~-> UART_RXD**
70 -
71 -(% style="background-color:yellow" %)** USB TTL RXD <~-~-~-~-> UART_TXD**
72 -
73 -
74 -In the PC, you need to set the serial baud rate to (% style="color:green" %)**9600**(%%) to access the serial console for GroPoint Air. GroPoint Air will output system info once power on as below:
75 -
76 -[[image:Main.User Manual for LoRaWAN End Nodes.LLMS01-LoRaWAN Leaf Moisture Sensor User Manual.WebHome@1654653659449-932.png||height="471" width="674"]]
77 -
78 -Valid AT Command please check [[Configure Device>>||anchor="H3.ConfigureLLMS01viaATCommandorLoRaWANDownlink"]].
79 -
80 -
81 -= Battery & How to replace =
82 -
83 -== Battery Type ==
84 -
85 -GroPoint Air is equipped with a [[8500mAH ER26500 Li-SOCI2 battery>>url:https://www.dragino.com/downloads/index.php?dir=datasheet/Battery/ER26500/]]. The battery is an un-rechargeable battery with a low discharge rate targeting more than 5 years use. This type of battery is commonly used in IoT targets for long-term running, such as water meters.
86 -
87 -The discharge curve is not linear so can’t simply use percentage to show the battery level. Below is the battery performance.
88 -
89 -
90 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/1654593587246-335.png?rev=1.1||alt="1654593587246-335.png" height="408" width="574"]]
91 -
92 -Minimum Working Voltage for the GroPoint Air:
93 -
94 -GroPoint Air:  2.45v ~~ 3.6v
95 -
96 -== ==
97 -
98 -== Power Consumption Analyze ==
99 -
100 -Dragino Battery-powered products are all runs in Low Power mode. We have an updated battery calculator which base on the measurement of the real device. User can use this calculator to check the battery life and calculate the battery life if want to use different transmit intervals.
101 -
102 -Instruction to use as below:
103 -
104 -
105 -**Step 1**: Downlink the up-to-date DRAGINO_Battery_Life_Prediction_Table.xlsx from: [[https:~~/~~/www.dragino.com/downloads/index.pHp?dir=LoRa_End_Node/Battery_Analyze/>>url:https://www.dragino.com/downloads/index.php?dir=LoRa_End_Node/Battery_Analyze/]]
106 -
107 -
108 -**Step 2**: Open it and choose
109 -
110 -* (((
111 -Product Model
112 -)))
113 -* (((
114 -Uplink Interval
115 -)))
116 -* (((
117 -Working Mode
118 -)))
119 -
120 -And the Life expectation in difference case will be shown on the right.
121 -
122 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/1654593605679-189.png?rev=1.1||alt="1654593605679-189.png"]]
123 -
124 -The battery-related documents as below:
125 -
126 -* (((
127 -[[Battery Dimension>>url:http://www.dragino.com/downloads/index.php?dir=datasheet/Battery/&file=LSN50-Battery-Dimension.pdf]],
128 -)))
129 -* (((
130 -[[Lithium-Thionyl Chloride Battery  datasheet>>url:https://www.dragino.com/downloads/downloads/datasheet/Battery/ER26500/ER26500_Datasheet-EN.pdf]],
131 -)))
132 -* (((
133 -[[Lithium-ion Battery-Capacitor datasheet>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC_1520_datasheet.jpg]], [[Tech Spec>>url:http://www.dragino.com/downloads/downloads/datasheet/Battery/SPC1520%20Technical%20Specification20171123.pdf]]
134 -)))
135 -
136 -[[image:http://8.211.40.43/xwiki/bin/download/Main/User%20Manual%20for%20LoRaWAN%20End%20Nodes/LLMS01-LoRaWAN%20Leaf%20Moisture%20Sensor%20User%20Manual/WebHome/image-20220607172042-11.png?rev=1.1||alt="image-20220607172042-11.png"]]
137 -
138 -(% class="wikigeneratedid" %)
139 -=== ===
140 -
141 -=== ​Battery Note ===
142 -
143 -The Li-SICO battery is designed for small current / long period application. It is not good to use a high current, short period transmit method. The recommended minimum period for use of this battery is 5 minutes. If you use a shorter period time to transmit LoRa, then the battery life may be decreased.
144 -
145 -(% class="wikigeneratedid" %)
146 -=== ===
147 -
148 -=== Replace the battery ===
149 -
150 -You can change the battery in the LLMS01.The type of battery is not limited as long as the output is between 3v to 3.6v. On the main board, there is a diode (D1) between the battery and the main circuit. If you need to use a battery with less than 3.3v, please remove the D1 and shortcut the two pads of it so there won’t be voltage drop between battery and main board.
151 -
152 -The default battery pack of LLMS01 includes a ER26500 plus super capacitor. If user can’t find this pack locally, they can find ER26500 or equivalence, which will also work in most case. The SPC can enlarge the battery life for high frequency use (update period below 5 minutes)
153 -
154 -
155 -
156 -
157 -
158 -= FAQ =
159 -
160 -== How to change the LoRa Frequency Bands/Region ==
161 -
162 -You can follow the instruction here: [[how to upgrade image>>doc:Main.Firmware Upgrade Instruction for STM32 base products.WebHome||anchor="H2.HardwareUpgradeMethodSupportList"]].
163 -When downloading the images, choose the required image file for download. ​
164 -
165 -
166 -= Trouble Shooting =
167 -
168 -== AT Commands input doesn’t work ==
169 -
170 -In case if user can see the console output but can’t type input to the device. Please check if you already include the (% style="color:green" %)**ENTER**(%%) while sending out the command. Some serial tool doesn’t send (% style="color:green" %)**ENTER**(%%) while pressing the send key, user need to add ENTER in their string.
171 -
172 -
173 -
174 174  = Order Info =
175 175  
176 176  Part Number: **GROPOINT AIR-M-XX**
... ... @@ -186,6 +186,7 @@
186 186  * **IN865**: LoRaWAN IN865 band
187 187  * **CN470**: LoRaWAN CN470 band
188 188  
73 +
189 189  = ​Packing Info =
190 190  
191 191  **Package Includes:  **
... ... @@ -192,6 +192,7 @@
192 192  
193 193  * GroPoint Air-M x 1
194 194  
80 +
195 195  **Dimension and weight:**
196 196  
197 197  * Device Size: cm
... ... @@ -199,4 +199,5 @@
199 199  * Package Size / pcs : cm
200 200  * Weight / pcs : g
201 201  
88 +
202 202  
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