Skip to Content
Version 148.6 by Xiaoling on 2022/10/10 11:31
Hide last authors
Xiaoling 134.2 1
Xiaoling 87.2 2
Xiaoling 87.13 3 **Table of Contents:**
4
Edwin Chen 1.1 5 {{toc/}}
6
7
Edwin Chen 6.1 8
Xiaoling 87.2 9 = 1.  LA66 LoRaWAN Module =
10
11
12 == 1.1  What is LA66 LoRaWAN Module ==
13
14
Xiaoling 87.15 15 (((
Xiaoling 100.2 16 (((
17 [[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
18 )))
Edwin Chen 88.2 19
Xiaoling 100.2 20 (((
21
22 )))
23
24 (((
Edwin Chen 65.1 25 (% style="color:blue" %)**Dragino LA66**(%%) is a small wireless LoRaWAN module that offers a very compelling mix of long-range, low power consumption, and secure data transmission. It is designed to facilitate developers to quickly deploy industrial-level LoRaWAN and IoT solutions. It helps users to turn the idea into a practical application and make the Internet of Things a reality. It is easy to create and connect your things everywhere.
Xiaoling 87.15 26 )))
Xiaoling 100.2 27 )))
Edwin Chen 1.1 28
Xiaoling 87.15 29 (((
Xiaoling 100.2 30 (((
Xiaoling 101.4 31 (% style="color:blue" %)**LA66**(%%) is a ready-to-use module that includes the (% style="color:blue" %)**LoRaWAN v1.0.3 protocol**(%%). The LoRaWAN stack used in LA66 is used in more than 1 million LoRaWAN End Devices deployed world widely. This mature LoRaWAN stack greatly reduces the risk to make stable LoRaWAN Sensors to support different LoRaWAN servers and different countries' standards. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
Xiaoling 87.15 32 )))
Xiaoling 100.2 33 )))
Edwin Chen 1.1 34
Xiaoling 87.15 35 (((
Xiaoling 100.2 36 (((
Edwin Chen 65.1 37 Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
Xiaoling 87.15 38 )))
Edwin Chen 1.1 39
Xiaoling 87.15 40 (((
Edwin Chen 65.1 41 Besides the support of the LoRaWAN protocol, LA66 also supports (% style="color:blue" %)**open-source peer-to-peer LoRa Protocol**(%%) for the none-LoRaWAN application.
Xiaoling 87.15 42 )))
Xiaoling 100.2 43 )))
Edwin Chen 1.1 44
Xiaoling 87.15 45 (((
Xiaoling 100.2 46 (((
Edwin Chen 65.1 47 LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
Xiaoling 87.15 48 )))
Xiaoling 100.2 49 )))
Edwin Chen 1.1 50
Edwin Chen 67.1 51
Xiaoling 100.2 52
Xiaoling 87.2 53 == 1.2  Features ==
Edwin Chen 64.1 54
Xiaoling 137.6 55
Xiaoling 146.4 56 * Support LoRaWAN v1.0.3 protocol
Edwin Chen 68.1 57 * Support peer-to-peer protocol
58 * TCXO crystal to ensure RF performance on low temperature
59 * SMD Antenna pad and i-pex antenna connector
60 * Available in different frequency LoRaWAN frequency bands.
61 * World-wide unique OTAA keys.
Edwin Chen 69.1 62 * AT Command via UART-TTL interface
63 * Firmware upgradable via UART interface
64 * Ultra-long RF range
Edwin Chen 64.1 65
Xiaoling 146.3 66
Xiaoling 87.2 67 == 1.3  Specification ==
68
Xiaoling 137.6 69
Edwin Chen 68.1 70 * CPU: 32-bit 48 MHz
71 * Flash: 256KB
72 * RAM: 64KB
Edwin Chen 66.1 73 * Input Power Range: 1.8v ~~ 3.7v
74 * Power Consumption: < 4uA.
75 * Frequency Range: 150 MHz ~~ 960 MHz
76 * Maximum Power +22 dBm constant RF output
77 * High sensitivity: -148 dBm
78 * Temperature:
79 ** Storage: -55 ~~ +125℃
80 ** Operating: -40 ~~ +85℃
81 * Humidity:
82 ** Storage: 5 ~~ 95% (Non-Condensing)
83 ** Operating: 10 ~~ 95% (Non-Condensing)
84 * LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
85 * LoRa Rx current: <9 mA
86 * I/O Voltage: 3.3v
Edwin Chen 1.1 87
Xiaoling 146.3 88
Xiaoling 87.2 89 == 1.4  AT Command ==
90
Xiaoling 98.2 91
Edwin Chen 148.1 92 AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in[[ AT Command documents>>https://www.dropbox.com/sh/wtq43za8sykpgta/AABAEE02uEAsRU-JV7bzEhMba?dl=0]].
Edwin Chen 1.1 93
Edwin Chen 3.1 94
Xiaoling 98.4 95
Xiaoling 87.2 96 == 1.5  Dimension ==
Edwin Chen 3.1 97
Xiaoling 146.3 98
Xiaoling 98.2 99 [[image:image-20220718094750-3.png]]
Edwin Chen 3.1 100
101
Edwin Chen 5.1 102
Xiaoling 87.2 103 == 1.6  Pin Mapping ==
104
Xiaoling 101.2 105 [[image:image-20220720111850-1.png]]
Xiaoling 87.2 106
Edwin Chen 5.1 107
108
Xiaoling 87.2 109 == 1.7  Land Pattern ==
110
Xiaoling 137.6 111
Edwin Chen 5.1 112 [[image:image-20220517072821-2.png]]
113
114
115
Xiaoling 146.3 116 = 2.  FAQ =
Edwin Chen 6.1 117
118
Xiaoling 146.3 119 == 2.1  How to Compile Source Code for LA66? ==
Xiaoling 87.2 120
Edwin Chen 90.1 121
Edwin Chen 147.1 122 Compile and Upload Code to ASR6601 Platform：[[Instruction>>Compile and Upload Code to ASR6601 Platform]]
Xiaoling 137.2 123
124
Xiaoling 148.2 125
Edwin Chen 147.1 126 == 2.2 Can i use LA66 module's internal I/O without external MCU, So to save product cost? ==
Xiaoling 137.2 127
Xiaoling 148.2 128
Edwin Chen 147.1 129 Yes, this is possible, user can refer[[ the source code from ASR >>https://github.com/asrlora/asr_lora_6601/tree/master/projects/ASR6601SE-EVAL/examples/lora]]to get examples for how to its I/O Interfaces.
130
131
Xiaoling 148.2 132
Xiaoling 148.4 133 == 2.3  Where to find Peer-to-Peer firmware of LA66? ==
134
135
136 Instruction for LA66 Peer to Peer firmware :[[ Instruction >>doc:Main.User Manual for LoRaWAN End Nodes.LA66 LoRaWAN Shield User Manual.Instruction for LA66 Peer to Peer firmware.WebHome]]
137
138
139
Xiaoling 146.3 140 = 3.  Order Info =
Xiaoling 137.2 141
142
Xiaoling 146.3 143 **Part Number:**  (% style="color:blue" %)**LA66-XXX**
Xiaoling 87.4 144
145
Xiaoling 87.5 146 (% style="color:blue" %)**XXX**(%%): The default frequency band
Edwin Chen 86.1 147
Xiaoling 87.5 148 * (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
149 * (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
150 * (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
151 * (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
152 * (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
153 * (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
154 * (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
155 * (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
156 * (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
Edwin Chen 73.1 157
Xiaoling 148.5 158
Xiaoling 148.6 159
160 = 4.  FCC Statement =
161
162
163 **(% style="color:red" %)FCC Caution:**
164
165
166 Any Changes or modifications not expressly approved by the party responsible for compliance could void the user's authority to operate the equipment.
167
168
169 This device complies with part 15 of the FCC Rules. Operation is subject to the following two conditions: (1) This device may not cause harmful interference, and (2) this device must accept any interference received, including interference that may cause undesired operation.
170
171
172 **(% style="color:red" %)IMPORTANT NOTE: **
173
174
175 Note: This equipment has been tested and found to comply with the limits for a Class B digital device, pursuant to part 15 of the FCC Rules. These limits are designed to provide reasonable protection against harmful interference in a residential installation. This equipment generates, uses and can radiate radio frequency energy and, if not installed and used in accordance with the instructions, may cause harmful interference to radio communications. However, there is no guarantee that interference will not occur in a particular installation. If this equipment does cause harmful interference to radio or television reception, which can be determined by turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of the following measures:
176
177
178 —Reorient or relocate the receiving antenna.
179
180
181 —Increase the separation between the equipment and receiver.
182
183
184 —Connect the equipment into an outlet on a circuit different from that to which the receiver is connected.
185
186
187 —Consult the dealer or an experienced radio/TV technician for help.
188
189
190 **(% style="color:red" %)FCC Radiation Exposure Statement: **
191
192 This equipment complies with FCC radiation exposure limits set forth for an uncontrolled environment.This equipment should be installed and operated with minimum distance 20cm between the radiator& your body.