/* * EBYTE LoRa E220 * send a structured message to the device that have ADDH ADDL CHAN -> 0 DESTINATION_ADDL 23 * * write the int humidity value on serial (or reset device that send default message) * * You must configure 2 device: one as SENDER (with FIXED SENDER config) and uncomment the relative * define with the correct DESTINATION_ADDL, and one as RECEIVER (with FIXED RECEIVER config) * and uncomment the relative define with the correct DESTINATION_ADDL. * * Write a string on serial monitor or reset to resend default value. * * 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 and set the correct AUX_PIN define. * * by Renzo Mischianti * * 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 * */ // With FIXED SENDER configuration #define DESTINATION_ADDL 3 #define ROOM "Kitchen" // With FIXED RECEIVER configuration //#define DESTINATION_ADDL 2 //#define ROOM "Bath" // If you want use RSSI uncomment //#define ENABLE_RSSI true // and use relative configuration with RSSI enabled // #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 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 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 // ------------------------------------------------- struct Message { char type[5]; char message[8]; float temperature; }; void setup() { Serial.begin(9600); delay(500); // Startup all pins and UART e220ttl.begin(); Serial.println("Hi, I'm going to send message!"); struct Message message = {"TEMP", ROOM, 19.2}; // Send message ResponseStatus rs = e220ttl.sendFixedMessage(0, DESTINATION_ADDL, 23, &message, sizeof(Message)); // Check If there is some problem of succesfully send Serial.println(rs.getResponseDescription()); } void loop() { // If something available if (e220ttl.available()>1) { // read the String message #ifdef ENABLE_RSSI ResponseStructContainer rsc = e220ttl.receiveMessageRSSI(sizeof(Message)); #else ResponseStructContainer rsc = e220ttl.receiveMessage(sizeof(Message)); #endif // Is something goes wrong print error if (rsc.status.code!=1){ Serial.println(rsc.status.getResponseDescription()); }else{ // Print the data received Serial.println(rsc.status.getResponseDescription()); struct Message message = *(Message*) rsc.data; Serial.println(message.type); Serial.println(message.message); Serial.println(message.temperature); #ifdef ENABLE_RSSI Serial.print("RSSI: "); Serial.println(rsc.rssi, DEC); #endif } } if (Serial.available()) { struct Message message = { "TEMP", ROOM, 0 }; message.temperature = Serial.parseFloat(); // Send message ResponseStatus rs = e220ttl.sendFixedMessage(0, DESTINATION_ADDL, 23, &message, sizeof(Message)); // Check If there is some problem of succesfully send Serial.println(rs.getResponseDescription()); } }