基于ESP8266的dmx接收器和发送器疑问求解

嗨，
所以我有一个带有两个 max485 屏蔽的 esp 来接收（改变）和发送 dmx 数据。然而，首先我只想接收并通过 DMX 信号，这样当我让它工作时，我就可以开始做我的 if 和 else。
然而，阅读 dmx 似乎并没有以我的经验开始工作。我基于此处找到的 espdmx 库发送（实际上已经有效）：
我当前正在运行的代码：
代码：全选#include

#include   //ticker Library
#include "espDMX2/espDMX.h"

#define NUMBER_OF_CHANNELS 512
unsigned int dmxaddress = 1;

#define DEpinTX D5
#define DEpinRX D6
#define btnPin 7

DMXESPSerial dmx;


#define RX_PIN 3   // serial receive pin, which takes the incoming data from the MAX485.
#define TX_PIN 2   // serial transmission pin


/******************************* DMX variable declarations ********************************/

volatile byte i = 0;              //dummy variable for dmxvalue[]
volatile byte dmxreceived = 0;    //the latest received value
volatile unsigned int dmxcurrent = 0;     //counter variable that is incremented every time we receive a value.
volatile int currentBit = 0;
volatile byte dmxvalue[NUMBER_OF_CHANNELS];
volatile int zeroCounter = 0;
volatile int dmxnewvalue = 0;


void setup() {
  //pinMode(RX_PIN, FUNCTION_3);
  WiFi.mode( WIFI_OFF );
  WiFi.forceSleepBegin();
  /******************************* Max485 configuration ***********************************/
  Serial.begin(250000);
  pinMode(DEpinTX, OUTPUT);
  pinMode(DEpinRX, OUTPUT);
  digitalWrite(DEpinRX, LOW);
  digitalWrite(DEpinTX, HIGH);
  dmx.init(512);

  pinMode(RX_PIN, INPUT);  //sets serial pin to receive data
  pinMode(TX_PIN, OUTPUT);
  timer1_attachInterrupt(onTimerISR); //function to call at 4us
  timer1_enable(TIM_DIV16, TIM_EDGE, TIM_LOOP); // 80 Mhz / 16 = 5 Mhz, 5 ticks / us -> 20 ticks = 4us,
  timer1_write(20); //4 us
  delay(2000);

}  //end setup()

void loop()  {
  // the processor gets parked here while the ISRs are doing their thing.
  if (dmxnewvalue == 1) {    //when a new set of values are received, jump to action loop...
    for (int y = 0; y < NUMBER_OF_CHANNELS; y++) {
      dmx.write(y, interestingBytes[y]);
    }
    dmx.update();
    dmxnewvalue = 0;
    zeroCounter = 0;      //and then when finished reset variables and enable timer2 interrupt
    i = 0;
   
  }

} //end loop()

void onTimerISR() {
  

  if (digitalRead(RX_PIN)) {
    zeroCounter = 0;
  } else {
    zeroCounter++;
    if (zeroCounter == 20) {
      //80 us break (20 zero's in a row)
      attachInterrupt(digitalPinToInterrupt(RX_PIN), receptionISR, CHANGE);
    }
  }
}


void receptionISR() {
  dmxreceived = Serial.read();
  dmxcurrent++;                        //increment address counter
  if (dmxcurrent > dmxaddress) {        //check if the current address is the one we want.
    dmxvalue = dmxreceived;
    i++;
    if (i == NUMBER_OF_CHANNELS) {
      detachInterrupt(digitalPinToInterrupt(RX_PIN));
      dmxnewvalue = 1;                        //set newvalue, so that the main code can be executed.
    }
  }
}

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