the simple: (not structured)
Esp32 receiver
/*
* EBYTE LoRa E220
*
* Receive messages on CHANNEL 23
* Uncomment #define ENABLE_RSSI true in this sketch
* if the sender send RSSI also
*
* by Renzo Mischianti <https://www.mischianti.org>
*
* https://www.mischianti.org
*
* E220 ----- WeMos D1 mini ----- esp32 ----- Arduino Nano 33 IoT ----- Arduino MKR ----- Raspberry Pi Pico ----- stm32 ----- ArduinoUNO
* M0 ----- D7 (or GND) ----- 19 (or GND) ----- 4 (or GND) ----- 2 (or GND) ----- 10 (or GND) ----- PB0 (or GND) ----- 7 Volt div (or GND)
* M1 ----- D6 (or GND) ----- 21 (or GND) ----- 6 (or GND) ----- 4 (or GND) ----- 11 (or GND) ----- PB10 (or GND) ----- 6 Volt div (or GND)
* TX ----- D3 (PullUP) ----- TX2 (PullUP) ----- TX1 (PullUP) ----- 14 (PullUP) ----- 8 (PullUP) ----- PA2 TX2 (PullUP) ----- 4 (PullUP)
* RX ----- D4 (PullUP) ----- RX2 (PullUP) ----- RX1 (PullUP) ----- 13 (PullUP) ----- 9 (PullUP) ----- PA3 RX2 (PullUP) ----- 5 Volt div (PullUP)
* AUX ----- D5 (PullUP) ----- 18 (PullUP) ----- 2 (PullUP) ----- 0 (PullUP) ----- 2 (PullUP) ----- PA0 (PullUP) ----- 3 (PullUP)
* VCC ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v
* GND ----- GND ----- GND ----- GND ----- GND ----- GND ----- GND ----- GND
*
*/
// If you want use RSSI uncomment
#define ENABLE_RSSI true
#include "Arduino.h"
#include "LoRa_E220.h"
// ---------- esp8266 pins --------------
//LoRa_E220 e220ttl(RX, TX, AUX, M0, M1); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(D3, D4, D5, D7, D6); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX AUX M0 M1
//LoRa_E220 e220ttl(D2, D3); // Config without connect AUX and M0 M1
//#include <SoftwareSerial.h>
//SoftwareSerial mySerial(D2, D3); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(&mySerial, D5, D7, D6); // AUX M0 M1
// -------------------------------------
// ---------- Arduino pins --------------
//LoRa_E220 e220ttl(4, 5, 3, 7, 6); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX AUX M0 M1
//LoRa_E220 e220ttl(4, 5); // Config without connect AUX and M0 M1
//#include <SoftwareSerial.h>
//SoftwareSerial mySerial(4, 5); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(&mySerial, 3, 7, 6); // AUX M0 M1
// -------------------------------------
// ------------- Arduino Nano 33 IoT -------------
// LoRa_E220 e220ttl(&Serial1, 2, 4, 6); // RX AUX M0 M1
// -------------------------------------------------
// ------------- Arduino MKR WiFi 1010 -------------
// LoRa_E220 e220ttl(&Serial1, 0, 2, 4); // RX AUX M0 M1
// -------------------------------------------------
// ---------- esp32 pins --------------
// LoRa_E220 e220ttl(&Serial2, 15, 21, 19); // RX AUX M0 M1
LoRa_E220 e220ttl(&Serial2, 18, 21, 19); // RX AUX M0 M1
//LoRa_E220 e220ttl(&Serial2, 22, 4, 18, 21, 19, UART_BPS_RATE_9600); // esp32 RX <-- e220 TX, esp32 TX --> e220 RX AUX M0 M1
// -------------------------------------
// ---------- Raspberry PI Pico pins --------------
// LoRa_E220 e220ttl(&Serial2, 2, 10, 11); // RX AUX M0 M1
// -------------------------------------
// ---------------- STM32 --------------------
//HardwareSerial Serial2(USART2); // PA3 (RX) PA2 (TX)
//LoRa_E220 e220ttl(&Serial2, PA0, PB0, PB10); // RX AUX M0 M1
// -------------------------------------------------
int period = 5000;
unsigned long time_now = 0;
void setup() {
Serial.begin(9600);
delay(500);
// Startup all pins and UART
e220ttl.begin();
Serial.println("Start receiving!");
}
void loop() {
// If something available
if (e220ttl.available()>1) {
Serial.println("Message received!");
// read the String message
#ifdef ENABLE_RSSI
ResponseContainer rc = e220ttl.receiveMessageRSSI();
ResponseContainer rc2 = e220ttl.receiveMessageRSSI();
ResponseContainer rc3 = e220ttl.receiveMessageRSSI();
#else
ResponseContainer rc = e220ttl.receiveMessage();
ResponseContainer rc2 = e220ttl.receiveMessage();
ResponseContainer rc3 = e220ttl.receiveMessage();
#endif
// Is something goes wrong print error
if (rc.status.code!=1){
Serial.println(rc.status.getResponseDescription());
Serial.println(rc2.status.getResponseDescription());
Serial.println(rc3.status.getResponseDescription());
}else{
// Print the data received
Serial.println(rc.status.getResponseDescription());
Serial.println(rc.data);
Serial.println(rc2.data);
Serial.println(rc3.data);
#ifdef ENABLE_RSSI
Serial.print("RSSI: "); Serial.println(rc.rssi, DEC);
#endif
}
}
}
Arduino UNO Transmitter:
/*
* EBYTE LoRa E220
* send a transparent message, you must check that the transmitter and receiver have the same
* CHANNEL ADDL and ADDH
*
* Pay attention e220 support RSSI, if you want use that functionality you must enable RSSI on configuration
* configuration.TRANSMISSION_MODE.enableRSSI = RSSI_ENABLED;
*
* and uncomment #define ENABLE_RSSI true in this sketch
*
* You must uncommend the correct constructor.
*
* by Renzo Mischianti <https://www.mischianti.org>
*
* https://www.mischianti.org
*
* E220 ----- WeMos D1 mini ----- esp32 ----- Arduino Nano 33 IoT ----- Arduino MKR ----- Raspberry Pi Pico ----- stm32 ----- ArduinoUNO
* M0 ----- D7 (or GND) ----- 19 (or GND) ----- 4 (or GND) ----- 2 (or GND) ----- 10 (or GND) ----- PB0 (or GND) ----- 7 Volt div (or GND)
* M1 ----- D6 (or GND) ----- 21 (or GND) ----- 6 (or GND) ----- 4 (or GND) ----- 11 (or GND) ----- PB10 (or GND) ----- 6 Volt div (or GND)
* TX ----- D3 (PullUP) ----- TX2 (PullUP) ----- TX1 (PullUP) ----- 14 (PullUP) ----- 8 (PullUP) ----- PA2 TX2 (PullUP) ----- 4 (PullUP)
* RX ----- D4 (PullUP) ----- RX2 (PullUP) ----- RX1 (PullUP) ----- 13 (PullUP) ----- 9 (PullUP) ----- PA3 RX2 (PullUP) ----- 5 Volt div (PullUP)
* AUX ----- D5 (PullUP) ----- 18 (PullUP) ----- 2 (PullUP) ----- 0 (PullUP) ----- 2 (PullUP) ----- PA0 (PullUP) ----- 3 (PullUP)
* VCC ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v ----- 3.3v/5v
* GND ----- GND ----- GND ----- GND ----- GND ----- GND ----- GND ----- GND
*
*/
#define ENABLE_RSSI true
#include "Arduino.h"
#include "LoRa_E220.h"
#include "DHT.h"
#define DHTPIN 2
#define DHTTYPE DHT22
DHT dht(DHTPIN, DHTTYPE);
#include <Wire.h>
#include <Adafruit_BMP085.h>
Adafruit_BMP085 bmp;
// ---------- esp8266 pins --------------
//LoRa_E220 e220ttl(RX, TX, AUX, M0, M1); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(D3, D4, D5, D7, D6); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX AUX M0 M1
//LoRa_E220 e220ttl(D2, D3); // Config without connect AUX and M0 M1
//#include <SoftwareSerial.h>
//SoftwareSerial mySerial(D2, D3); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(&mySerial, D5, D7, D6); // AUX M0 M1
// -------------------------------------
// ---------- Arduino pins --------------
LoRa_E220 e220ttl(4, 5, 3, 7, 6); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX AUX M0 M1
//LoRa_E220 e220ttl(4, 5); // Config without connect AUX and M0 M1
//#include <SoftwareSerial.h>
//SoftwareSerial mySerial(4, 5); // Arduino RX <-- e220 TX, Arduino TX --> e220 RX
//LoRa_E220 e220ttl(&mySerial, 3, 7, 6); // AUX M0 M1
// -------------------------------------
// ------------- Arduino Nano 33 IoT -------------
// LoRa_E220 e220ttl(&Serial1, 2, 4, 6); // RX AUX M0 M1
// -------------------------------------------------
// ------------- Arduino MKR WiFi 1010 -------------
// LoRa_E220 e220ttl(&Serial1, 0, 2, 4); // RX AUX M0 M1
// -------------------------------------------------
// ---------- esp32 pins --------------
// LoRa_E220 e220ttl(&Serial2, 15, 21, 19); // RX AUX M0 M1
//LoRa_E220 e220ttl(&Serial2, 22, 4, 18, 21, 19, UART_BPS_RATE_9600); // esp32 RX <-- e220 TX, esp32 TX --> e220 RX AUX M0 M1
// -------------------------------------
// ---------- Raspberry PI Pico pins --------------
// LoRa_E220 e220ttl(&Serial2, 2, 10, 11); // RX AUX M0 M1
// -------------------------------------
// ---------------- STM32 --------------------
//HardwareSerial Serial2(USART2); // PA3 (RX) PA2 (TX)
//LoRa_E220 e220ttl(&Serial2, PA0, PB0, PB10); // RX AUX M0 M1
// -------------------------------------------------
void setup() {
Serial.begin(9600);
delay(500);
dht.begin();
e220ttl.begin();
bmp.begin();
// If you have ever change configuration you must restore It
Serial.println("Hi, I'm going to send message!");
// Send message
}
void loop() {
float t = dht.readTemperature();
float h = dht.readHumidity();
float p = bmp.readPressure() / 100;
String myPre;
String myTemp;
String myHum;
myPre=String(p);
myTemp=String(t);
myHum=String(h);
delay(5000);
ResponseStatus rs = e220ttl.sendMessage(myTemp);
ResponseStatus rs2 = e220ttl.sendMessage(myHum);
ResponseStatus rs3 = e220ttl.sendMessage(myPre);
// Check If there is some problem of succesfully send
Serial.println(rs.getResponseDescription());
if (e220ttl.available()>1) {
// read the String message
#ifdef ENABLE_RSSI
ResponseContainer rc = e220ttl.receiveMessageRSSI();
#else
ResponseContainer rc = e220ttl.receiveMessage();
#endif
// Is something goes wrong print error
if (rc.status.code!=1){
Serial.println(rc.status.getResponseDescription());
}else{
// Print the data received
Serial.println(rc.status.getResponseDescription());
Serial.println(rc.data);
#ifdef ENABLE_RSSI
Serial.print("RSSI: "); Serial.println(rc.rssi, DEC);
#endif
}
}
if (Serial.available()) {
String input = Serial.readString();
e220ttl.sendMessage(input);
}
}
.