| commit | author | age | ||
| 652221 | 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 | ||
| 11 | #include<WiFi.h> | |
| 12 | ||
| 13 | #define IN_TRIGGER 17 | |
| 14 | #define OUT_TRIGGER 16 | |
| 15 | ||
| 16 | ||
| 5e844b | 17 | //RF24 radio(2, 4); // CE, CSN // This is for alternative wiring. |
| 652221 | 18 | RF24 radio(22, 21); // CE, CSN |
| SP | 19 | |
| 5e844b | 20 | const byte address[6] = {'R','E','C','V', '1'}; // Do not change this address. |
| 652221 | 21 | char dataToSend[4] = "TRG"; |
| SP | 22 | |
| 23 | void IRAM_ATTR isr() { | |
| 24 | digitalWrite(OUT_TRIGGER, LOW); | |
| 5e844b | 25 | radio.write( &dataToSend, 4 ); |
| 652221 | 26 | long time=micros(); |
| 5e844b | 27 | while(micros()-time<5000); |
| SP | 28 | digitalWrite(OUT_TRIGGER,HIGH); |
| 652221 | 29 | } |
| SP | 30 | |
| 31 | ||
| 32 | ||
| 33 | void setup() { | |
| 34 | // put your setup code here, to run once: | |
| 35 | WiFi.mode(WIFI_OFF); | |
| 36 | btStop(); | |
| 37 | radio.begin(); | |
| 38 | radio.openWritingPipe(address); | |
| 39 | radio.setPALevel(RF24_PA_MAX); | |
| 40 | radio.setDataRate( RF24_1MBPS ); | |
| 41 | radio.setRetries(1,0); // delay, count | |
| 42 | pinMode(OUT_TRIGGER, OUTPUT); | |
| 43 | digitalWrite(OUT_TRIGGER,HIGH); | |
| 44 | attachInterrupt(digitalPinToInterrupt(IN_TRIGGER), isr, FALLING); | |
| 45 | Serial.begin(115200); | |
| 46 | } | |
| 47 | ||
| 48 | void loop() { | |
| 49 | // put your main code here, to run repeatedly: | |
| 5e844b | 50 | //To send the code every 5--6 ms, uncomment this code |
| SP | 51 | /* |
| 652221 | 52 | radio.write( &dataToSend, 4 ); |
| SP | 53 | long time=micros(); |
| 54 | while(micros()-time<5000); | |
| 55 | */ | |
| 56 | } | |
