| commit | author | age | ||
| b08ee1 | 1 | /* There was a help from these two pages: |
| SP | 2 | https://forum.arduino.cc/t/connect-nrf24l01-to-esp32/678710/4 |
| 3 | https://electropeak.com/learn/wireless-communication-w-arduino-and-nrf24l01/ | |
| 4 | */ | |
| 5 | ||
| 6 | #include <RF24_config.h> | |
| 7 | #include <nRF24L01.h> | |
| 8 | #include <RF24.h> | |
| 9 | #include <printf.h> | |
| 10 | ||
| c6fcd5 | 11 | #include<WiFi.h> |
| SP | 12 | |
| b08ee1 | 13 | #define IN_TRIGGER 17 |
| SP | 14 | #define OUT_TRIGGER 16 |
| c6fcd5 | 15 | |
| b08ee1 | 16 | |
| SP | 17 | RF24 radio(22, 21); // CE, CSN |
| 18 | ||
| 19 | const byte address[6] = {'R','E','C','V', '1'}; | |
| 20 | char dataToSend[4] = "TRG"; | |
| c6fcd5 | 21 | |
| SP | 22 | void IRAM_ATTR isr() { |
| e0a3ca | 23 | // detachInterrupt(digitalPinToInterrupt(IN_TRIGGER)); |
| SP | 24 | digitalWrite(OUT_TRIGGER, LOW); |
| 25 | long time=micros(); | |
| 26 | while(micros()-time<4000); | |
| 27 | digitalWrite(OUT_TRIGGER,HIGH); | |
| 28 | // radio.write( &dataToSend, sizeof(dataToSend) ); | |
| 29 | ||
| 30 | // attachInterrupt(digitalPinToInterrupt(IN_TRIGGER), isr, RISING); | |
| 31 | ||
| c6fcd5 | 32 | } |
| b08ee1 | 33 | |
| SP | 34 | |
| c6fcd5 | 35 | |
| SP | 36 | void setup() { |
| 37 | // put your setup code here, to run once: | |
| 38 | ||
| 39 | WiFi.mode(WIFI_OFF); | |
| 40 | btStop(); | |
| 41 | ||
| b08ee1 | 42 | |
| SP | 43 | radio.begin(); |
| 44 | radio.openWritingPipe(address); | |
| d6fc89 | 45 | radio.setPALevel(RF24_PA_MAX); |
| e0a3ca | 46 | radio.setDataRate( RF24_250KBPS ); |
| b08ee1 | 47 | |
| e0a3ca | 48 | //pinMode(IN_TRIGGER, INPUT_PULLUP); |
| c6fcd5 | 49 | pinMode(OUT_TRIGGER, OUTPUT); |
| e0a3ca | 50 | digitalWrite(OUT_TRIGGER,HIGH); |
| SP | 51 | attachInterrupt(digitalPinToInterrupt(IN_TRIGGER), isr, FALLING); |
| 52 | Serial.begin(115200); | |
| c6fcd5 | 53 | |
| SP | 54 | } |
| 55 | ||
| 56 | void loop() { | |
| 57 | // put your main code here, to run repeatedly: | |
| e0a3ca | 58 | Serial.print(micros()); |
| SP | 59 | Serial.println(": ---> TRG"); |
| 60 | radio.write( &dataToSend, sizeof(dataToSend) ); | |
| 61 | Serial.print(micros()); | |
| 62 | Serial.println(": TRG--->"); | |
| 63 | delay(5000); | |
| 64 | ||
| c6fcd5 | 65 | } |
