Wiki source code of LA66 LoRaWAN Module
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| author | version | line-number | content |
|---|---|---|---|
| 1 | {{box cssClass="floatinginfobox" title="**Contents**"}} | ||
| 2 | {{toc/}} | ||
| 3 | {{/box}} | ||
| 4 | |||
| 5 | = LA66 LoRaWAN Module = | ||
| 6 | |||
| 7 | == What is LA66 LoRaWAN Module == | ||
| 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. | ||
| 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 | |||
| 13 | **Each LA66 **module includes a world unique OTAA key for LoRaWAN registration. | ||
| 14 | |||
| 15 | |||
| 16 | |||
| 17 | == Specification == | ||
| 18 | |||
| 19 | [[image:image-20220517072526-1.png]] | ||
| 20 | |||
| 21 | Input Power Range: 1.8v ~~ 3.7v | ||
| 22 | |||
| 23 | Power Consumption: < 4uA. | ||
| 24 | |||
| 25 | Frequency Range: 150 MHz ~~ 960 MHz | ||
| 26 | |||
| 27 | Maximum Power +22 dBm constant RF output | ||
| 28 | |||
| 29 | High sensitivity: -148 dBm | ||
| 30 | |||
| 31 | Temperature: | ||
| 32 | |||
| 33 | * Storage: -55 ~~ +125℃ | ||
| 34 | * Operating: -40 ~~ +85℃ | ||
| 35 | |||
| 36 | Humidity: | ||
| 37 | |||
| 38 | * Storage: 5 ~~ 95% (Non-Condensing) | ||
| 39 | * Operating: 10 ~~ 95% (Non-Condensing) | ||
| 40 | |||
| 41 | LoRa Tx Current: <90 mA at +17 dBm, 108 mA at +22 dBm | ||
| 42 | |||
| 43 | LoRa Rx current: <9 mA | ||
| 44 | |||
| 45 | I/O Voltage: 3.3v | ||
| 46 | |||
| 47 | |||
| 48 | == AT Command == | ||
| 49 | |||
| 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 | |||
| 52 | |||
| 53 | == Pin Mapping == | ||
| 54 | |||
| 55 | [[image:image-20220523101537-1.png]] | ||
| 56 | |||
| 57 | == Land Pattern == | ||
| 58 | |||
| 59 | [[image:image-20220517072821-2.png]] | ||
| 60 | |||
| 61 | |||
| 62 | == Part Number == | ||
| 63 | |||
| 64 | Part Number: **LA66-XXX** | ||
| 65 | |||
| 66 | **XX**: The default frequency band | ||
| 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 | ||
| 76 | |||
| 77 | = LA66 LoRaWAN Shield = | ||
| 78 | |||
| 79 | LA66 LoRaWAN Shield is the Arduino Breakout PCB to fast test the features of LA66 module and turn Arduino to support LoRaWAN. | ||
| 80 | |||
| 81 | == Pin Mapping & LED == | ||
| 82 | |||
| 83 | == Example: Use AT Command to communicate with LA66 module via Arduino UNO. == | ||
| 84 | |||
| 85 | == Example: Join TTN network and send an uplink message, get downlink message. == | ||
| 86 | |||
| 87 | == Example: Log Temperature Sensor(DHT11) and send data to TTN, show it in DataCake. == | ||
| 88 | |||
| 89 | == Upgrade Firmware of LA66 LoRaWAN Shield == | ||
| 90 | |||
| 91 | === what needs to be used === | ||
| 92 | |||
| 93 | 1.LA66 LoRaWAN Shield that needs to be upgraded | ||
| 94 | |||
| 95 | 2.Arduino | ||
| 96 | |||
| 97 | 3.USB TO TTL | ||
| 98 | |||
| 99 | [[image:image-20220602100052-2.png]] | ||
| 100 | |||
| 101 | === Wiring Schematic === | ||
| 102 | |||
| 103 | [[image:image-20220602101311-3.png]] | ||
| 104 | |||
| 105 | LA66 LoRaWAN Shield >>>>>>>>>>>>USB TTL | ||
| 106 | |||
| 107 | GND >>>>>>>>>>>>GND | ||
| 108 | |||
| 109 | TXD >>>>>>>>>>>>TXD | ||
| 110 | |||
| 111 | RXD >>>>>>>>>>>>RXD | ||
| 112 | |||
| 113 | JP6 of LA66 LoRaWAN Shield needs to be connected with yellow jumper cap | ||
| 114 | |||
| 115 | Connect to the PC after connecting the wires | ||
| 116 | |||
| 117 | [[image:image-20220602102240-4.png]] | ||
| 118 | |||
| 119 | === Upgrade steps === | ||
| 120 | |||
| 121 | ==== Dial the SW1 of the LA66 LoRaWAN Shield to the ISP's location as shown in the figure below ==== | ||
| 122 | |||
| 123 | [[image:image-20220602102824-5.png]] | ||
| 124 | |||
| 125 | ==== Press the RST switch on the LA66 LoRaWAN Shield once ==== | ||
| 126 | |||
| 127 | [[image:image-20220602104701-12.png]] | ||
| 128 | |||
| 129 | ==== Open the upgrade application software ==== | ||
| 130 | |||
| 131 | Software download link：[[click here>>attach:TremoProgrammer_v0.8.rar]] | ||
| 132 | |||
| 133 | [[image:image-20220602103227-6.png]] | ||
| 134 | |||
| 135 | [[image:image-20220602103357-7.png]] | ||
| 136 | |||
| 137 | ===== Select the COM port corresponding to USB TTL ===== | ||
| 138 | |||
| 139 | [[image:image-20220602103844-8.png]] | ||
| 140 | |||
| 141 | ===== Select the bin file to burn ===== | ||
| 142 | |||
| 143 | [[image:image-20220602104144-9.png]] | ||
| 144 | |||
| 145 | [[image:image-20220602104251-10.png]] | ||
| 146 | |||
| 147 | [[image:image-20220602104402-11.png]] | ||
| 148 | |||
| 149 | ===== Click to start the download ===== | ||
| 150 | |||
| 151 | [[image:image-20220602104923-13.png]] | ||
| 152 | |||
| 153 | ===== The following figure appears to prove that the burning is in progress ===== | ||
| 154 | |||
| 155 | [[image:image-20220602104948-14.png]] | ||
| 156 | |||
| 157 | ===== The following picture appears to prove that the burning is successful ===== | ||
| 158 | |||
| 159 | [[image:image-20220602105251-15.png]] | ||
| 160 | |||
| 161 | = LA66 USB LoRaWAN Adapter = | ||
| 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 | |||
| 165 | == Pin Mapping & LED == | ||
| 166 | |||
| 167 | == Example Send & Get Messages via LoRaWAN in PC == | ||
| 168 | |||
| 169 | == Example Send & Get Messages via LoRaWAN in RPi == | ||
| 170 | |||
| 171 | === Install USB Driver === | ||
| 172 | |||
| 173 | === Install Minicom === | ||
| 174 | |||
| 175 | === Use AT Command to send an uplink message. === | ||
| 176 | |||
| 177 | === Send PC's CPU/RAM usage to TTN via script. === | ||
| 178 | |||
| 179 | ==== Take python as an example： ==== | ||
| 180 | |||
| 181 | ===== Preconditions: ===== | ||
| 182 | |||
| 183 | 1.LA66 LoRa Shield works fine | ||
| 184 | |||
| 185 | 2.LA66 LoRa Shield is registered with TTN | ||
| 186 | |||
| 187 | ===== Steps for usage ===== | ||
| 188 | |||
| 189 | 1.After connecting the line, connect it to the PC, turn SW1 to FLASH, and press the RST switch. As shown in the figure below | ||
| 190 | |||
| 191 | [[image:image-20220602114148-1.png]] | ||
| 192 | |||
| 193 | 2.Run the script and see the TTN | ||
| 194 | |||
| 195 | [[image:image-20220602115852-3.png]] | ||
| 196 | |||
| 197 | |||
| 198 | |||
| 199 | == Example: LA66 USB Module got a message from LA66 LoRa Shield and send the sensor data to NodeRed. == | ||
| 200 | |||
| 201 | |||
| 202 | == Upgrade Firmware of LA66 USB LoRaWAN Adapter == |