Concept code to convert Flipper Zero RAW SubGHZ recording into Arduino compatable playback code

raw_playback.cpp

#include <Arduino.h>
#define TRANSMIT_PIN 5

void transmit_raw(String raw_data);

String raw_data = "4569 -9174 97 -800 99 -99 -324 ...";   // add your data here.

void setup() {
  Serial.begin(9600);
  pinMode(TRANSMIT_PIN, OUTPUT);

  //  Get ready to transmit
  digitalWrite(TRANSMIT_PIN, LOW);
  delay(1000);
}

void loop() {
  transmit_raw(raw_data);
  delay(1000);
}

void transmit_raw(String raw_data) {
  int16_t time;
  bool value;
  unsigned int data_start = 0;
  unsigned int data_end = 0;
  
  // Converting String into char array
  char raw_data_array[raw_data.length() + 1];
  raw_data.toCharArray(raw_data_array, raw_data.length() + 1);

  //  Tokenizing and sending a bit at a time.
  char* token = strtok(raw_data_array, " ");
  while (token != NULL) {
    time = atoi(token);
    //  getting the high or low value of the bit.
    value = time > 0 ? HIGH : LOW;

    //  making time positive if it is not
    time = abs(time);

    //  sending a single bit and keeping it active for 'time' microseconds
    digitalWrite(TRANSMIT_PIN, value);
    delayMicroseconds(time);

    //  getting the next bit data.
    token = strtok(NULL, " ");
  }
}