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Create rs485_rele_esplan.ino

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Konstantin Láska 2025-04-04 11:24:08 +02:00
parent b58ad1e954
commit 1fbd84ea65
1 changed files with 59 additions and 0 deletions
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SW/rs485_rele_esplan/rs485_rele_esplan.ino Executable file
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// ESPLan + https://www.laskakit.cz/8-kanalu-12v-rele-modul-250vac-10a--rs485--din/
byte open1ch[] = {0x01, 0x06, 0x00, 0x01, 0x01, 0x00};
byte close1ch[] = {0x01, 0x06, 0x00, 0x01, 0x02, 0x00};
byte openAll[] = {0x01, 0x06, 0x00, 0x00, 0x07, 0x00};
byte closeAll[] = {0x01, 0x06, 0x00, 0x00, 0x08, 0x00};
void setup(){
Serial.begin(115200);
Serial1.begin(9600, SERIAL_8N1, 36, 4); //ESP32 RX1 IO36, TX1 IO4
// sendData(openAll, sizeof(openAll)); // Sepne vsechny rele
// delay(1000);
// sendData(closeAll, sizeof(closeAll)); // Rozepne vsechny rele
// delay(1000);
sendData(open1ch, sizeof(open1ch)); // Sepne rele 1
delay(1000);
sendData(close1ch, sizeof(close1ch)); // Rozepne rele 1
}
void loop(){
}
void sendData(byte d[], int i){
byte crc[2];
uint16_t crcc = calcCRC(d, i);
uint8_t crc_l = (uint8_t)(crcc >> 8);
uint8_t crc_h = (uint8_t)crcc;
d[6] = crc_h;
d[7] = crc_l;
Serial1.write(d, i+2);
}
unsigned short calcCRC(const unsigned char *indata, int len){
unsigned short crc=0xffff;
unsigned char temp;
int n;
while(len--){
crc=*indata^crc;
for(n=0;n<8;n++){
char TT;
TT=crc&1;
crc=crc>>1;
crc=crc&0x7fff;
if (TT==1){
crc=crc^0xa001;
crc=crc&0xffff;
}
}
indata++;
}
return crc;
}