RadioHead Mesh网络通讯

Question

我正在使用 LilyGO TTGO T-beam with ESP32 to create a LoRa mesh network with RadioHead Library。我遇到了一个问题，即我的网状客户端能够连接到网状服务器，但服务器从客户端接收到 0 个字节。有什么建议吗？谢谢。 Current Outcome Picture

设置：

#define SCK     5   // GPIO5  -- SX1278's SCK
#define MISO    19  // GPIO19 -- SX1278's MISnO
#define MOSI    27  // GPIO27 -- SX1278's MOSI
#define SS      18  // GPIO18 -- SX1278's CS
#define RST     23  // GPIO14 -- SX1278's RESET --- I tried both of them, none of them works.
#define DI0     26  // GPIO26 -- SX1278's IRQ(Interrupt Request)
#define SELF_ID 1
#define SERVER_ID 254

RHSoftwareSPI spi;
RH_RF95 rf95(SS, DI0, spi);
RHMesh loraMesh(rf95, SELF_ID);  // Server would be SERVER_ID

发送代码：

int MeshSend(String message) {
  int msgLen = message.length() + 1;
  uint8_t byteData[msgLen] = {'[=11=]'};

  message.getBytes(byteData, message.length());

  if (DEBUG) {
    Serial.print("Sending \'");
    Serial.print((char*)byteData);
    Serial.println("\' to rf95_server, length is " + String(msgLen) + ".");
  }
  sleep(50);  // Stop whole process for cleaning buff
  counter += 50;

  return loraMesh.sendtoWait(byteData, msgLen, SERVER);
}

接收码：

void loop() {
    uint8_t len = RH_MESH_MAX_MESSAGE_LEN;  // 250
    uint8_t from;
    driver.setModeRx();
    if (manager.recvfromAck(buf, &len, &from)) {
      if (DEBUG) {
        Serial.print("Got ");
        Serial.print(len);
        Serial.print(" bytes of message from ");
        Serial.print(from, HEX);
        Serial.print(": ");
      }
      Serial.println((char*) buf);
    }
}

Answer 1

的，问题解决了，我需要用manager.available()查看状态，去掉manager.setModeRx()。

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