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add example for LORA
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LiHuashen
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+60
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@@ -43,14 +43,68 @@ account the distance, anti-interference and power consumption
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- **[LoRa Info](http://wiki.ai-thinker.com/lora) (LoRa)**
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?> **Note** If your board LCD can't display or has some other problem, we suggest
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you to add the two statements code followed by ``m5.begin();`` as shown
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below
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?> If your board LCD can't display or has some other problem, we suggest you to add the two statements code followed by ``m5.begin();`` as shown below. Because GPIO5 who has connected NSS pin of LoRa module need be pull-up at the moment your board(or system) power on to prevent system's LCD can't display.
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```arduino
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pinMode(5,OUTPUT);
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digitalWrite(5,HIGH);
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m5.begin();
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```
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?> **Note** Because GPIO5 who has connected NSS pin of LoRa module need be pull-up
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at the moment your board(or system) power on to prevent system's LCD
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can't display.
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## Example
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### Arduino IDE
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This is point-to-point communication example between two LORA modules. One is transmitter, another is receiver.
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*If you want the complete code, please click [here](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/LORA/Arduino)*
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```arduino
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#include <M5Stack.h>
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#include <M5LoRa.h>
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// declaration
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static uint32_t counter;
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// initialization
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// override the default CS, reset, and IRQ pins (optional)
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LoRa.setPins(); // default set CS, reset, IRQ pin
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M5.Lcd.println("LoRa Sender");
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// frequency in Hz (433E6, 866E6, 915E6)
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LoRa.begin(433E6);
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// send data
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LoRa.beginPacket();
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LoRa.print("hello ");
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LoRa.print(counter);// lora send data
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LoRa.endPacket();
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```
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```arduino
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/*
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LoRaReceiver.ino
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*/
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#include <M5Stack.h>
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#include <M5LoRa.h>
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// initialization
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M5.begin();
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// override the default CS, reset, and IRQ pins (optional)
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LoRa.setPins();// default set CS, reset, IRQ pin
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// frequency in Hz (433E6, 866E6, 915E6)
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LoRa.begin(433E6);
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// try to parse packet
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int packetSize = LoRa.parsePacket();
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if (packetSize) {
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// read packet
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while (LoRa.available()) {
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char ch = (char)LoRa.read();
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M5.Lcd.print(ch);
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}
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// print RSSI of packet
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M5.Lcd.print("\" with RSSI ");
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M5.Lcd.println(LoRa.packetRssi());
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}
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```
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<img src="assets/img/product_pics/module/module_example/LORA/example_module_lora_01.png">
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+1
-3
@@ -24,9 +24,7 @@
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**Communication Modules**
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<!-- [](en/module/gps) -->
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[](en/module/lora) [](en/module/lorawan) [](en/module/sim800)
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[](en/module/gps) [](en/module/lora) [](en/module/lorawan) [](en/module/sim800)
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[](en/module/commu)
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@@ -45,4 +45,9 @@
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https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_diff_between_m5cores.md
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- Q. USB插入Core之后，识别不到串口号？
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- A. 这些Core主要区别在内部硬件配置和套件搭配上，从基础版到升级版，分别是增加了运动传感器和加大了RAM和FLASH，具体区别请访问这个链接
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https://github.com/m5stack/M5-Schematic/blob/master/Core/hardware_diff_between_m5cores.md
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--- -->
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@@ -47,10 +47,63 @@ M5Stack LoRa模块适用于长距离通信，结合多个LoRa模块，能组成
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m5.begin();
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```
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<!-- ## 例程
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## 例程
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### Arduino IDE -->
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### Arduino IDE
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这是两个LORA模块点对点通信的例程，一个作为信号发射节点，一个作为信号接收节点。
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*以下仅为用法示意，并不完整。如果需要完整例程请点击[这里](https://github.com/m5stack/M5-ProductExampleCodes/tree/master/Module/LORA/Arduino)*
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```arduino
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#include <M5Stack.h>
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#include <M5LoRa.h>
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// declaration
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static uint32_t counter;
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// initialization
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// override the default CS, reset, and IRQ pins (optional)
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LoRa.setPins(); // default set CS, reset, IRQ pin
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M5.Lcd.println("LoRa Sender");
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// frequency in Hz (433E6, 866E6, 915E6)
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LoRa.begin(433E6);
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// send data
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LoRa.beginPacket();
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LoRa.print("hello ");
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LoRa.print(counter);// lora send data
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LoRa.endPacket();
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```
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```arduino
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/*
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LoRaReceiver.ino
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*/
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#include <M5Stack.h>
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#include <M5LoRa.h>
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// initialization
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M5.begin();
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// override the default CS, reset, and IRQ pins (optional)
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LoRa.setPins();// default set CS, reset, IRQ pin
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// frequency in Hz (433E6, 866E6, 915E6)
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LoRa.begin(433E6);
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// try to parse packet
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int packetSize = LoRa.parsePacket();
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if (packetSize) {
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// read packet
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while (LoRa.available()) {
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char ch = (char)LoRa.read();
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M5.Lcd.print(ch);
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}
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// print RSSI of packet
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M5.Lcd.print("\" with RSSI ");
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M5.Lcd.println(LoRa.packetRssi());
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}
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```
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<img src="assets/img/product_pics/module/module_example/LORA/example_module_lora_01.png">
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<!-- ## 原理图 -->
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@@ -18,6 +18,10 @@
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- 设置指纹识别比对等级
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## 例程
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### 1. Arduino IDE
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## 原理图
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<img src="assets/img/product_pics/unit/finger_sch.JPG">
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@@ -29,6 +33,10 @@
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<tr><td>FINGER指纹识别Unit</td><td>TXD</td><td>RXD</td><td>5V</td><td>GND</td></tr>
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</table>
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<iframe width="560" height="315" src="http://player.youku.com/embed/XMzk5NjU4NjM3Ng==" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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## 相关视频
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- **FINGER的演示**
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<iframe height=498 width=510 src="http://player.youku.com/embed/XMzk5NjU4NjM3Ng==" frameborder="0" allow="accelerometer; autoplay; encrypted-media; gyroscope; picture-in-picture" allowfullscreen></iframe>
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<!-- <iframe height=498 width=510 src='http://player.youku.com/embed/XMzk5NjU4NjM3Ng==' frameborder=0 'allowfullscreen'></iframe> -->
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