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1		-{{box cssClass="floatinginfobox" title="**Contents**"}}
	1	+
	2	+
	3	+**Table of Contents:**
	4	+
2	2	{{toc/}}
3		-{{/box}}
4	4
5		-= LA66 LoRaWAN Module =
6	6
7		-== What is LA66 LoRaWAN Module ==
8	8
9		-**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 LoRa 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 program, create and connect your things everywhere.
	9	+= 1.  LA66 LoRaWAN Module =
10	10
11		-**LA66 **is a ready-to-use module which includes the LoRaWAN v1.0.4 protocol. External MCU can use AT command to call LA66 and start to transmit data via the LoRaWAN protocol.
12	12
13		-**Each LA66 **module includes a world unique OTAA key for LoRaWAN registration.
	12	+== 1.1  What is LA66 LoRaWAN Module ==
14	14
15	15
	15	+(((
	16	+(((
	17	+[[image:image-20220719093358-2.png||height="145" width="220"]](% style="color:blue" %)** **
	18	+)))
16	16
17		-== Specification ==
	20	+(((
	21	+
	22	+)))
18	18
19		-[[image:image-20220517072526-1.png]]
	24	+(((
	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.
	26	+)))
	27	+)))
20	20
21		-Input Power Range: 1.8v ~~ 3.7v
	29	+(((
	30	+(((
	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.
	32	+)))
	33	+)))
22	22
23		-Power Consumption: < 4uA.
	35	+(((
	36	+(((
	37	+Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	38	+)))
24	24
25		-Frequency Range: 150 MHz ~~ 960 MHz
	40	+(((
	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.
	42	+)))
	43	+)))
26	26
27		-Maximum Power +22 dBm constant RF output
	45	+(((
	46	+(((
	47	+LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	48	+)))
	49	+)))
28	28
29		-High sensitivity: -148 dBm
30	30
31		-Temperature:
32	32
33		-* Storage: -55 ~~ +125℃
34		-* Operating: -40 ~~ +85℃
	53	+== 1.2  Features ==
35	35
36		-Humidity:
	55	+* Support LoRaWAN v1.0.4 protocol
	56	+* Support peer-to-peer protocol
	57	+* TCXO crystal to ensure RF performance on low temperature
	58	+* SMD Antenna pad and i-pex antenna connector
	59	+* Available in different frequency LoRaWAN frequency bands.
	60	+* World-wide unique OTAA keys.
	61	+* AT Command via UART-TTL interface
	62	+* Firmware upgradable via UART interface
	63	+* Ultra-long RF range
37	37
38		-* Storage: 5 ~~ 95% (Non-Condensing)
39		-* Operating: 10 ~~ 95% (Non-Condensing)
40	40
41		-LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
42	42
43		-LoRa Rx current: <9 mA
	67	+== 1.3  Specification ==
44	44
45		-I/O Voltage: 3.3v
	69	+* CPU: 32-bit 48 MHz
	70	+* Flash: 256KB
	71	+* RAM: 64KB
	72	+* Input Power Range: 1.8v ~~ 3.7v
	73	+* Power Consumption: < 4uA.
	74	+* Frequency Range: 150 MHz ~~ 960 MHz
	75	+* Maximum Power +22 dBm constant RF output
	76	+* High sensitivity: -148 dBm
	77	+* Temperature:
	78	+** Storage: -55 ~~ +125℃
	79	+** Operating: -40 ~~ +85℃
	80	+* Humidity:
	81	+** Storage: 5 ~~ 95% (Non-Condensing)
	82	+** Operating: 10 ~~ 95% (Non-Condensing)
	83	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	84	+* LoRa Rx current: <9 mA
	85	+* I/O Voltage: 3.3v
46	46
47	47
48		-== AT Command ==
49	49
	89	+== 1.4  AT Command ==
	90	+
	91	+
50	50	AT Command is valid over Main TXD and Main RXD. Serial Baud Rate is 9600. AT commands can be found in AT Command documents.
51	51
52	52
53		-== Pin Mapping ==
54	54
55		-[[image:image-20220523101537-1.png]]
	96	+== 1.5  Dimension ==
56	56
57		-== Land Pattern ==
	98	+[[image:image-20220718094750-3.png]]
58	58
	100	+
	101	+
	102	+== 1.6  Pin Mapping ==
	103	+
	104	+[[image:image-20220720111850-1.png]]
	105	+
	106	+
	107	+
	108	+== 1.7  Land Pattern ==
	109	+
59	59	[[image:image-20220517072821-2.png]]
60	60
61	61
62		-== Part Number ==
63	63
64		-Part Number: **LA66-XXX**
	114	+= 2.  LA66 LoRaWAN Shield =
65	65
66		-**XX**: The default frequency band
67	67
68		-* **AS923**: LoRaWAN AS923 band
69		-* **AU915**: LoRaWAN AU915 band
70		-* **EU433**: LoRaWAN EU433 band
71		-* **EU868**: LoRaWAN EU868 band
72		-* **KR920**: LoRaWAN KR920 band
73		-* **US915**: LoRaWAN US915 band
74		-* **IN865**: LoRaWAN IN865 band
75		-* **CN470**: LoRaWAN CN470 band
	117	+== 2.1  Overview ==
76	76
77		-= LA66 LoRaWAN Shield =
78	78
79		-LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN.
	120	+(((
	121	+[[image:image-20220715000826-2.png||height="145" width="220"]]
	122	+)))
80	80
81		-== Pin Mapping & LED ==
	124	+(((
	125	+
	126	+)))
82	82
83		-== Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
	128	+(((
	129	+(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%) is the Arduino shield base on LA66. Users can use LA66 LoRaWAN Shield to rapidly add LoRaWAN or peer-to-peer LoRa wireless function to  Arduino projects.
	130	+)))
84	84
85		-== Example: Join TTN network and send an uplink message, get downlink message. ==
	132	+(((
	133	+(((
	134	+(% 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.
	135	+)))
	136	+)))
86	86
87		-== Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
	138	+(((
	139	+(((
	140	+Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	141	+)))
	142	+)))
88	88
89		-== Upgrade Firmware of LA66 LoRaWAN Shield ==
	144	+(((
	145	+(((
	146	+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.
	147	+)))
	148	+)))
90	90
91		-=== what needs to be used ===
	150	+(((
	151	+(((
	152	+LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	153	+)))
	154	+)))
92	92
93		-1.LA66 LoRaWAN Shield that needs to be upgraded
94	94
95		-2.Arduino
96	96
97		-3.USB TO TTL
	158	+== 2.2  Features ==
98	98
99		-[[image:image-20220602100052-2.png]]
	160	+* Arduino Shield base on LA66 LoRaWAN module
	161	+* Support LoRaWAN v1.0.4 protocol
	162	+* Support peer-to-peer protocol
	163	+* TCXO crystal to ensure RF performance on low temperature
	164	+* SMA connector
	165	+* Available in different frequency LoRaWAN frequency bands.
	166	+* World-wide unique OTAA keys.
	167	+* AT Command via UART-TTL interface
	168	+* Firmware upgradable via UART interface
	169	+* Ultra-long RF range
100	100
101		-=== Wiring Schematic ===
102	102
103		-[[image:image-20220602101311-3.png]]
104	104
105		-LA66 LoRaWAN Shield  >>>>>>>>>>>>USB TTL
	173	+== 2.3  Specification ==
106	106
107		-GND  >>>>>>>>>>>>GND
	175	+* CPU: 32-bit 48 MHz
	176	+* Flash: 256KB
	177	+* RAM: 64KB
	178	+* Input Power Range: 1.8v ~~ 3.7v
	179	+* Power Consumption: < 4uA.
	180	+* Frequency Range: 150 MHz ~~ 960 MHz
	181	+* Maximum Power +22 dBm constant RF output
	182	+* High sensitivity: -148 dBm
	183	+* Temperature:
	184	+** Storage: -55 ~~ +125℃
	185	+** Operating: -40 ~~ +85℃
	186	+* Humidity:
	187	+** Storage: 5 ~~ 95% (Non-Condensing)
	188	+** Operating: 10 ~~ 95% (Non-Condensing)
	189	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	190	+* LoRa Rx current: <9 mA
	191	+* I/O Voltage: 3.3v
108	108
109		-TXD  >>>>>>>>>>>>TXD
110	110
111		-RXD  >>>>>>>>>>>>RXD
112	112
113		-JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap
	195	+== 2.4  Pin Mapping & LED ==
114	114
115		-Connect to the PC after connecting the wires
116	116
117		-[[image:image-20220602102240-4.png]]
118	118
119		-=== Upgrade steps ===
	199	+== 2.5  Example: Use AT Command to communicate with LA66 module via Arduino UNO. ==
120	120
121		-==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ====
122	122
123		-[[image:image-20220602102824-5.png]]
124	124
125		-==== Press the RST switch on the LA66 LoRaWAN Shield once ====
	203	+== 2.6  Example: Join TTN network and send an uplink message, get downlink message. ==
126	126
127		-[[image:image-20220602104701-12.png]]
128	128
129		-==== Open the upgrade application software ====
130	130
131		-Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]
	207	+== 2.7  Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. ==
132	132
	209	+
	210	+
	211	+== 2.8  Upgrade Firmware of LA66 LoRaWAN Shield ==
	212	+
	213	+
	214	+=== 2.8.1  Items needed for update ===
	215	+
	216	+1. LA66 LoRaWAN Shield
	217	+1. Arduino
	218	+1. USB TO TTL Adapter
	219	+
	220	+[[image:image-20220602100052-2.png||height="385" width="600"]]
	221	+
	222	+
	223	+=== 2.8.2  Connection ===
	224	+
	225	+
	226	+[[image:image-20220602101311-3.png||height="276" width="600"]]
	227	+
	228	+
	229	+(((
	230	+(% style="color:blue" %)**LA66 LoRaWAN Shield**(%%)  **<->** (% style="color:blue" %)**USB TTL**
	231	+)))
	232	+
	233	+(((
	234	+(% style="background-color:yellow" %)**GND  <-> GND
	235	+TXD  <->  TXD
	236	+RXD  <->  RXD**
	237	+)))
	238	+
	239	+
	240	+Put a jumper cap on JP6 of LA66 LoRaWAN Shield. ( the jumper is to power on LA66 module)
	241	+
	242	+Connect USB TTL Adapter to PC after connecting the wires
	243	+
	244	+
	245	+[[image:image-20220602102240-4.png||height="304" width="600"]]
	246	+
	247	+
	248	+=== 2.8.3  Upgrade steps ===
	249	+
	250	+
	251	+==== 1.  Switch SW1 to put in ISP position ====
	252	+
	253	+
	254	+[[image:image-20220602102824-5.png||height="306" width="600"]]
	255	+
	256	+
	257	+
	258	+==== 2.  Press the RST switch once ====
	259	+
	260	+
	261	+[[image:image-20220602104701-12.png||height="285" width="600"]]
	262	+
	263	+
	264	+
	265	+==== 3.  Open the Upgrade tool (Tremo Programmer) in PC and Upgrade ====
	266	+
	267	+
	268	+(((
	269	+(% style="color:blue" %)**1. Software download link:  [[https:~~/~~/www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/>>https://www.dragino.com/downloads/index.php?dir=LSN50-LoRaST/Utility/LSN50N/]]**
	270	+)))
	271	+
	272	+
133	133	[[image:image-20220602103227-6.png]]
134	134
	275	+
135	135	[[image:image-20220602103357-7.png]]
136	136
137		-===== Select the COM port corresponding to USB TTL =====
138	138
	279	+
	280	+(% class="wikigeneratedid" id="HSelecttheCOMportcorrespondingtoUSBTTL" %)
	281	+(% style="color:blue" %)**2. Select the COM port corresponding to USB TTL**
	282	+
	283	+
139	139	[[image:image-20220602103844-8.png]]
140	140
141		-===== Select the bin file to burn =====
142	142
	287	+
	288	+(% class="wikigeneratedid" id="HSelectthebinfiletoburn" %)
	289	+(% style="color:blue" %)**3. Select the bin file to burn**
	290	+
	291	+
143	143	[[image:image-20220602104144-9.png]]
144	144
	294	+
145	145	[[image:image-20220602104251-10.png]]
146	146
	297	+
147	147	[[image:image-20220602104402-11.png]]
148	148
149		-===== Click to start the download =====
150	150
	301	+
	302	+(% class="wikigeneratedid" id="HClicktostartthedownload" %)
	303	+(% style="color:blue" %)**4. Click to start the download**
	304	+
151	151	[[image:image-20220602104923-13.png]]
152	152
153		-===== The following figure appears to prove that the burning is in progress =====
154	154
	308	+
	309	+(% class="wikigeneratedid" id="HThefollowingfigureappearstoprovethattheburningisinprogress" %)
	310	+(% style="color:blue" %)**5. Check update process**
	311	+
	312	+
155	155	[[image:image-20220602104948-14.png]]
156	156
157		-===== The following picture appears to prove that the burning is successful =====
158	158
	316	+
	317	+(% class="wikigeneratedid" id="HThefollowingpictureappearstoprovethattheburningissuccessful" %)
	318	+(% style="color:blue" %)**The following picture shows that the burning is successful**
	319	+
159	159	[[image:image-20220602105251-15.png]]
160	160
161		-= LA66 USB LoRaWAN Adapter =
162	162
163		-LA66 USB LoRaWAN Adapter is the USB Adapter for LA66, it combines a USB TTL Chip and LA66 module which can easy to test the LoRaWAN feature by using PC or embedded device which has USB Interface.
164	164
165		-Before use, please make sure that the computer has installed the CP2102 driver
	324	+= 3.  LA66 USB LoRaWAN Adapter =
166	166
167		-== Pin Mapping & LED ==
168	168
169		-== Example Send & Get Messages via LoRaWAN in PC ==
	327	+== 3.1  Overview ==
170	170
171		-Connect the LA66 LoRa Shield to the PC
172	172
173		-[[image:image-20220602171217-1.png||height="615" width="915"]]
	330	+[[image:image-20220715001142-3.png||height="145" width="220"]]
174	174
	332	+
	333	+(((
	334	+(% style="color:blue" %)**LA66 USB LoRaWAN Adapter**(%%) is designed to fast turn USB devices to support LoRaWAN wireless features. It combines a CP2101 USB TTL Chip and LA66 LoRaWAN module which can easy to add LoRaWAN wireless feature to PC / Mobile phone or an embedded device that has USB Interface.
	335	+)))
	336	+
	337	+(((
	338	+(% 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.
	339	+)))
	340	+
	341	+(((
	342	+Each LA66 module includes a (% style="color:blue" %)**world-unique OTAA key**(%%) for LoRaWAN registration.
	343	+)))
	344	+
	345	+(((
	346	+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.
	347	+)))
	348	+
	349	+(((
	350	+LA66 is equipped with (% style="color:blue" %)**TCXO crystal**(%%) which ensures the module can achieve stable performance in extreme temperatures.
	351	+)))
	352	+
	353	+
	354	+
	355	+== 3.2  Features ==
	356	+
	357	+* LoRaWAN USB adapter base on LA66 LoRaWAN module
	358	+* Ultra-long RF range
	359	+* Support LoRaWAN v1.0.4 protocol
	360	+* Support peer-to-peer protocol
	361	+* TCXO crystal to ensure RF performance on low temperature
	362	+* Spring RF antenna
	363	+* Available in different frequency LoRaWAN frequency bands.
	364	+* World-wide unique OTAA keys.
	365	+* AT Command via UART-TTL interface
	366	+* Firmware upgradable via UART interface
	367	+* Open Source Mobile App for LoRaWAN signal detect and GPS tracking.
	368	+
	369	+
	370	+
	371	+== 3.3  Specification ==
	372	+
	373	+* CPU: 32-bit 48 MHz
	374	+* Flash: 256KB
	375	+* RAM: 64KB
	376	+* Input Power Range: 5v
	377	+* Frequency Range: 150 MHz ~~ 960 MHz
	378	+* Maximum Power +22 dBm constant RF output
	379	+* High sensitivity: -148 dBm
	380	+* Temperature:
	381	+** Storage: -55 ~~ +125℃
	382	+** Operating: -40 ~~ +85℃
	383	+* Humidity:
	384	+** Storage: 5 ~~ 95% (Non-Condensing)
	385	+** Operating: 10 ~~ 95% (Non-Condensing)
	386	+* LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm
	387	+* LoRa Rx current: <9 mA
	388	+
	389	+
	390	+
	391	+== 3.4  Pin Mapping & LED ==
	392	+
	393	+
	394	+
	395	+== 3.5  Example: Send & Get Messages via LoRaWAN in PC ==
	396	+
	397	+
	398	+(((
	399	+Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
	400	+)))
	401	+
	402	+
	403	+(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN adapter to PC**
	404	+
	405	+
	406	+[[image:image-20220602171217-1.png||height="538" width="800"]]
	407	+
	408	+
175	175	Open the serial port tool
176	176
177	177	[[image:image-20220602161617-8.png]]
178	178
179		-[[image:image-20220602161718-9.png||height="529" width="927"]]
	413	+[[image:image-20220602161718-9.png||height="457" width="800"]]
180	180
181		-Press the reset switch RST on the LA66 LoRa Shield.
182	182
183		-The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
184	184
185		-[[image:image-20220602161935-10.png]]
	417	+(% style="color:blue" %)**2. Press the reset switch RST on the LA66 USB LoRaWAN Adapter to reset it.**
186	186
187		-send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
	419	+The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully Join the LoRaWAN network
188	188
	421	+
	422	+[[image:image-20220602161935-10.png||height="498" width="800"]]
	423	+
	424	+
	425	+
	426	+(% style="color:blue" %)**3. See Uplink Command**
	427	+
	428	+Command format: (% style="color:#4472c4" %)** AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
	429	+
189	189	example: AT+SENDB=01,02,8,05820802581ea0a5
190	190
191		-[[image:image-20220602162157-11.png]]
	432	+[[image:image-20220602162157-11.png||height="497" width="800"]]
192	192
193		-Check to see if TTN received the message
194	194
195		-[[image:image-20220602162331-12.png||height="547" width="1044"]]
196	196
197		-== Example Send & Get Messages via LoRaWAN in RPi ==
	436	+(% style="color:blue" %)**4. Check to see if TTN received the message**
198	198
199		-Connect the LA66 LoRa Shield to the RPI
	438	+[[image:image-20220602162331-12.png||height="420" width="800"]]
200	200
201		-[[image:image-20220602171233-2.png||height="592" width="881"]]
202	202
203		-Log in to the RPI's terminal and connect to the serial port
204	204
205		-[[image:image-20220602153146-3.png]]
	442	+== 3.6  Example: Send PC's CPU/RAM usage to TTN via python ==
206	206
207		-Press the reset switch RST on the LA66 LoRa Shield.
208		-The following picture appears to prove that the LA66 LoRa Shield successfully entered the network
209	209
210		-[[image:image-20220602154928-5.png]]
	445	+**Use python as an example：**[[https:~~/~~/github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py>>https://github.com/dragino/LA66/blob/main/Send_information_to_TTN_WindosPC.py]]
211	211
212		-send instructions: AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>
213	213
214		-example: AT+SENDB=01,02,8,05820802581ea0a5
	448	+(% style="color:red" %)**Preconditions:**
215	215
216		-[[image:image-20220602160339-6.png]]
	450	+(% style="color:red" %)**1. LA66 USB LoRaWAN Adapter works fine**
217	217
218		-Check to see if TTN received the message
	452	+(% style="color:red" %)**2. LA66 USB LoRaWAN Adapter  is registered with TTN**
219	219
220		-[[image:image-20220602160627-7.png||height="468" width="1013"]]
221	221
222		-=== Install Minicom ===
223	223
224		-Enter the following command in the RPI terminal
	456	+(% style="color:blue" %)**Steps for usage:**
225	225
226		-apt update
	458	+(% style="color:blue" %)**1.**(%%) Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
227	227
228		-[[image:image-20220602143155-1.png]]
	460	+(% style="color:blue" %)**2.**(%%) Run the python script in PC and see the TTN
229	229
230		-apt install minicom
	462	+[[image:image-20220602115852-3.png||height="450" width="1187"]]
231	231
232		-[[image:image-20220602143744-2.png]]
233	233
234		-=== Send PC's CPU/RAM usage to TTN via script. ===
235	235
236		-==== Take python as an example： ====
	466	+== 3.7  Example: Send & Get Messages via LoRaWAN in RPi ==
237	237
238		-===== Preconditions: =====
239	239
240		-1.LA66 USB LoRaWAN Adapter works fine
	469	+Assume user already input the LA66 USB LoRaWAN Adapter OTAA Keys in TTN and there is already TTN network coverage.
241	241
242		-2.LA66 USB LoRaWAN Adapter  is registered with TTN
243	243
244		-===== Steps for usage =====
	472	+(% style="color:blue" %)**1. Connect the LA66 USB LoRaWAN Adapter to the Raspberry Pi**
245	245
246		-1.Press the reset switch RESET on the LA66 USB LoRaWAN Adapter
	474	+[[image:image-20220602171233-2.png||height="538" width="800"]]
247	247
248		-2.Run the script and see the TTN
249	249
250		-[[image:image-20220602115852-3.png]]
251	251
	478	+(% style="color:blue" %)**2. Install Minicom in RPi.**
252	252
	480	+(% id="cke_bm_509388S" style="display:none" %) (%%)Enter the following command in the RPi terminal
253	253
254		-== Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
	482	+ (% style="background-color:yellow" %)**apt update**
255	255
	484	+ (% style="background-color:yellow" %)**apt install minicom**
256	256
257		-== Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
258	258
259		-
	487	+Use minicom to connect to the RPI's terminal
	488	+
	489	+[[image:image-20220602153146-3.png||height="439" width="500"]]
	490	+
	491	+
	492	+
	493	+(% style="color:blue" %)**3. Press the reset switch RST on the LA66 USB LoRaWAN Adapter.**
	494	+
	495	+The following picture appears to prove that the LA66 USB LoRaWAN Adapter successfully entered the network.
	496	+
	497	+
	498	+[[image:image-20220602154928-5.png||height="436" width="500"]]
	499	+
	500	+
	501	+
	502	+(% style="color:blue" %)**4. Send Uplink message**
	503	+
	504	+Format: (% style="color:#4472c4" %)**AT+SENDB=<confirn_status>,<Fport>,<data_len>,<data>**
	505	+
	506	+example: AT+SENDB=01,02,8,05820802581ea0a5
	507	+
	508	+
	509	+[[image:image-20220602160339-6.png||height="517" width="600"]]
	510	+
	511	+
	512	+
	513	+Check to see if TTN received the message
	514	+
	515	+[[image:image-20220602160627-7.png||height="369" width="800"]]
	516	+
	517	+
	518	+
	519	+== 3.8  Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. ==
	520	+
	521	+
	522	+
	523	+== 3.9  Upgrade Firmware of LA66 USB LoRaWAN Adapter ==
	524	+
	525	+
	526	+
	527	+
	528	+= 4.  Order Info =
	529	+
	530	+
	531	+**Part Number:**  (% style="color:blue" %)**LA66-XXX**(%%), (% style="color:blue" %)**LA66-LoRaWAN-Shield-XXX** (%%) **or**  (% style="color:blue" %)**LA66-USB-LoRaWAN-Adapter-XXX**
	532	+
	533	+
	534	+(% style="color:blue" %)**XXX**(%%): The default frequency band
	535	+
	536	+* (% style="color:red" %)**AS923**(%%):  LoRaWAN AS923 band
	537	+* (% style="color:red" %)**AU915**(%%):  LoRaWAN AU915 band
	538	+* (% style="color:red" %)**EU433**(%%):  LoRaWAN EU433 band
	539	+* (% style="color:red" %)**EU868**(%%):  LoRaWAN EU868 band
	540	+* (% style="color:red" %)**KR920**(%%):  LoRaWAN KR920 band
	541	+* (% style="color:red" %)**US915**(%%):  LoRaWAN US915 band
	542	+* (% style="color:red" %)**IN865**(%%):  LoRaWAN IN865 band
	543	+* (% style="color:red" %)**CN470**(%%): LoRaWAN CN470 band
	544	+* (% style="color:red" %)**PP**(%%):  Peer to Peer LoRa Protocol
	545	+
	546	+= 5.  Reference =
	547	+
	548	+* Hardware Design File for LA66 LoRaWAN Shield, LA66 USB LoRaWAN Adapter : [[Download>>https://www.dropbox.com/sh/a3wbmdcvqjxaqw5/AADZfvAiykJTK624RgMquH86a?dl=0]]

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