V1.1.0 release

Author: Heltec-Aaron-Lee

examples/LoRa/SerialsetLoRaFrequency/SerialsetLoRaFrequency.ino

@@ -0,0 +1,141 @@
+/* Heltec Automation send communication test example
+ *
+ * Function:
+ * 1. Send data from a CubeCell device over hardware 
+ * 2. LoRa sending set frequency via serial
+ * 
+ * this example must work with Heltec ESP32 LoRaWAN library:
+ * https://github.com/HelTecAutomation/ESP32_LoRaWAN
+ * */
+
+#include <ESP32_LoRaWAN.h>
+#include "Arduino.h"
+
+uint32_t  license[4] = {0x947025A9, 0x7E6C7FE4, 0x943C2CDA, 0xE04CD68B};
+
+#define RF_FREQUENCY                                868000000 // Hz
+
+#define TX_OUTPUT_POWER                             14        // dBm
+
+#define LORA_BANDWIDTH                              0         // [0: 125 kHz,
+                                                              //  1: 250 kHz,
+                                                              //  2: 500 kHz,
+                                                              //  3: Reserved]
+#define LORA_SPREADING_FACTOR                       7         // [SF7..SF12]
+#define LORA_CODINGRATE                             1         // [1: 4/5,
+                                                              //  2: 4/6,
+                                                              //  3: 4/7,
+                                                              //  4: 4/8]
+#define LORA_PREAMBLE_LENGTH                        8         // Same for Tx and Rx
+#define LORA_SYMBOL_TIMEOUT                         0         // Symbols
+#define LORA_FIX_LENGTH_PAYLOAD_ON                  false
+#define LORA_IQ_INVERSION_ON                        false
+
+
+#define RX_TIMEOUT_VALUE                            1000
+#define BUFFER_SIZE                                 30 // Define the payload size here
+
+char txpacket[BUFFER_SIZE];
+char rxpacket[BUFFER_SIZE];
+
+static RadioEvents_t RadioEvents;
+
+double txNumber;
+
+int16_t rssi,rxSize;
+void  DoubleToString( char *str, double double_num,unsigned int len);
+
+void setup() {
+    Serial.begin(115200);
+    while (!Serial);
+    
+    SPI.begin(SCK,MISO,MOSI,SS);
+    Mcu.init(SS,RST_LoRa,DIO0,DIO1,license);
+    txNumber=0;
+    rssi=0;
+
+    Radio.Init( &RadioEvents );
+    Radio.SetChannel( RF_FREQUENCY );
+    Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
+                                   LORA_SPREADING_FACTOR, LORA_CODINGRATE,
+                                   LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
+                                   true, 0, 0, LORA_IQ_INVERSION_ON, 3000 ); 
+   }
+
+
+uint32_t starttime = 0;
+uint8_t data[128];
+uint8_t dataIndex = 0;
+
+uint32_t freq = 868000000;
+void loop()
+{
+  starttime = millis();
+  while( (millis() - starttime ) < 6000 )
+  {
+    if(Serial.available())
+    {
+      dataIndex = 0;
+      while(Serial.available())
+      {
+        data[dataIndex++]=Serial.read();
+        if(dataIndex == 128)
+        {
+          break;
+        }
+      }
+
+      if(dataIndex == 5 && data[3] == '.')
+      {
+        if( data[0] <= '9' && data[0] >= '0' && data[1] <= '9' && data[1] >= '0' && data[2] <= '9' && data[2] >= '0' && data[4] <= '9' && data[4] >= '0' )
+        {
+          uint32_t freq = (data[0]-'0')*100*1000000 + (data[1]-'0')*10*1000000+(data[2]-'0')*1000000+(data[4]-'0')*100000;
+          Serial.print("Freq set to ");
+//          Serial.println(freq);
+          Serial.write(data,dataIndex);
+          Serial.println("MHz");
+          Radio.Sleep();
+           Radio.SetChannel( freq );
+           Radio.SetTxConfig( MODEM_LORA, TX_OUTPUT_POWER, 0, LORA_BANDWIDTH,
+                                   LORA_SPREADING_FACTOR, LORA_CODINGRATE,
+                                   LORA_PREAMBLE_LENGTH, LORA_FIX_LENGTH_PAYLOAD_ON,
+                                   true, 0, 0, LORA_IQ_INVERSION_ON, 3000 ); 
+        }
+        else
+        {
+          Serial.println("Input Error. Input example : 868.1");
+        }
+      }
+      else
+      {
+        Serial.println("Input Error. Input example : 868.1");
+      }
+    }
+  }
+  
+	txNumber += 0.01;
+	sprintf(txpacket,"%s","Hello world number");  //start a package
+//	sprintf(txpacket+strlen(txpacket),"%d",txNumber); //add to the end of package
+	
+//	DoubleToString(txpacket,txNumber,3);	   //add to the end of package
+
+//	Serial.printf("\r\nsending packet \"%s\" , length %d\r\n",txpacket, strlen(txpacket));
+
+//  Serial.println( Radio.TimeOnAir(MODEM_LORA, strlen(txpacket)) );
+	Radio.Send( (uint8_t *)txpacket, strlen(txpacket) ); //send the package out	
+}
+
+/**
+  * @brief  Double To String
+  * @param  str: Array or pointer for storing strings
+  * @param  double_num: Number to be converted
+  * @param  len: Fractional length to keep
+  * @retval None
+  */
+void  DoubleToString( char *str, double double_num,unsigned int len) { 
+  double fractpart, intpart;
+  fractpart = modf(double_num, &intpart);
+  fractpart = fractpart * (pow(10,len));
+  sprintf(str + strlen(str),"%d", (int)(intpart)); //Integer part
+  sprintf(str + strlen(str), ".%d", (int)(fractpart)); //Decimal part
+}

library.json

@@ -10,7 +10,7 @@
         "name": "Heltec Automation(TM)",
         "email": "support@heltec.cn"
    },
-  "version": "1.0.9",
+  "version": "1.1.0",
   "frameworks": "arduino",
   "platforms": "espressif32"
 }

library.properties

@@ -1,5 +1,5 @@
 name=Heltec ESP32 Dev-Boards
-version=1.0.9
+version=1.1.0
 author= Heltec Automation
 maintainer=HelTec <support@heltec.cn>
 sentence=Library for Heltec ESP32 (or ESP32+LoRa) based boards