pinMode Problem

markus_breitenstein · November 24, 2024, 3:31pm

I try to assign pinMode(7, OUTPUT); to a pin. it works with all other pins i use, but for pin 7 i get an error while compiling:

error: expression list treated as compound expression in functional cast [-fpermissive]
PinMode(7, OUTPUT);

The pin is not in use before... so i do not realy understand the Problem.

The Board is an Arduino Giga R1, the includes are as following:

#include <Arduino_GigaDisplay.h>
#include <Arduino_GigaDisplay_GFX.h>
#include <Ethernet.h>
#include <USBHostGiga.h>

on the board is a arduino ethernet 2 shield, and a relais shield with 4 relais....

PaulRB · November 24, 2024, 3:43pm

Please explain what you mean by that. I don't think pinMode() returns any value, and if it did, you can't "assign a value to a pin"...

C/C++ is case sensitive. PinMode() is not the same as pinMode().

markus_breitenstein · November 24, 2024, 4:06pm

Hello Paul

I want to use it as an Output to control HIGH or LOW signal for a relais...

I do somethin similar wit pin 28, there it works without problems...

UKHeliBob · November 24, 2024, 4:13pm

Can you compile this minimal sketch ?

void setup()
{
    pinMode(7, OUTPUT);
}

void loop()
{
}

markus_breitenstein · November 24, 2024, 4:17pm

yes. this did work for about 20 minutes... now there is no LED working anymore on the Giga board... i think it did die... so first get a new one, then look forward

markus_breitenstein · November 24, 2024, 4:22pm

Hello Delta

The pin 7 goes directly to the relais board... so i can not limit the current there... all other circuilt ar limited with resistors. and the external power on vin is 12vdc 1amp...

the code is down there..

/*
  Web client

 This sketch connects to a website (http://www.google.com)
 using an Arduino Wiznet Ethernet shield.

 Circuit:
 * Ethernet shield attached to pins 10, 11, 12, 13

 created 18 Dec 2009
 by David A. Mellis
 modified 9 Apr 2012
 by Tom Igoe, based on work by Adrian McEwen

 */
//#include <WiFi.h>
#include <Arduino_GigaDisplay.h>
#include <Arduino_GigaDisplay_GFX.h>
#include <lvgl.h>
//#include <SPI.h>
#include <Ethernet.h>
#include <USBHostGiga.h>
/* Start Keyboard and Serial Communication */
#define BLACK 0x0000
#define BLUE 0x001F
#define RED 0xF800
#define GREEN 0x07E0
#define CYAN 0x07FF
#define MAGENTA 0xF81F
#define YELLOW 0xFFE0
#define WHITE 0xFFFF
/* Variables needed during processing */
String ku_lock = "True";
String ku_name = "";
String ku_result = "";
String ku_rest = "";
int ku_prg = 0;
unsigned long t_start, t_end;
unsigned long timer_1, timer_2;
/* Start Keyboard and Serial Communication */
Keyboard keyb;            // create the object
HostSerial ser;           // create the object
GigaDisplay_GFX display;  // create the object
// ---------- Ethernet Config ---------- //
byte mac[] = { 0xDE, 0xAD, 0xBE, 0xEF, 0xFE, 0xED };
IPAddress ip(192, 168, 0, 78);
IPAddress myDns(8, 8, 8, 8);
// ---------- WiFi Config -------------- //
//char ssid[] = "Fragilia";        // your network SSID (name)
//char pass[] = "Markus_Barbara1"; // your network password (use for WPA, or use as key for WEP)
//int status = WL_IDLE_STATUS;     // the WiFi radio's status
EthernetClient client;
//WiFiClient wclient;
// ---------- Server Config ---------- //
char server[] = "www.breitenstein.ag";    // name address for Google (using DNS)
unsigned long beginMicros, endMicros;
unsigned long byteCount = 0;
bool printWebData = true;   // set to false for better speed measurement
String rfid;                // string for the RFID
bool rfid_ok = false;       // boolean for RFID validation
int count = 1;              // counter for Keyboard 
int runonce = 0;            // value 0 ist a onetimer inside the loop
String text = "";            // text for print function
/* PIN declaration */
int wash = 6 ;            //Relais 3 Pin
int lift = 7 ;            //Relais 4 Pin
void setup() {
  /* PIN declaration */  
  pinMode(6, OUTPUT);    // Relais Waschen
  pinMode(7, OUTPUT);    // Relais Lift  
  pinMode(22, INPUT);       // Input Programm 1
  pinMode(24, INPUT);       // Input Programm 2
  pinMode(23, INPUT);       // Input Start
  pinMode(25, INPUT);       // Input Stop
  pinMode(28, OUTPUT);      // LED BLAU
  // Open serial communications and wait for port to open:
  Serial.begin(115200);while (!Serial) { ; }  // wait for serial port to connect. Needed for native USB port only
  display.begin();                            // enable display
  display.fillScreen(BLACK);                  // display backcolor 
  display.setRotation(3);                     // display rotation 
  display.setTextSize(4);                     // display text size
  pinMode(PA_15, OUTPUT);                     // enable keyboard on USB A
  keyb.begin();                               // start keyboard scanner
  ser.begin();                                // start serial communication on ethernet shield
  // start th wifi connection
  // if (WiFi.status() == WL_NO_MODULE) { Serial.println("Communication with WiFi module failed!"); display.println("Communication with WiFi module failed!"); while (true); }
  // while (status != WL_CONNECTED) { Serial.print("Attempting to connect SSID: "); Serial.println(ssid); display.print("Attempting to connect SSID: "); display.println(ssid); status = WiFi.begin(ssid, pass); delay(1000);  }
  // start the Ethernet connection:
  Serial.println("Initialize Ethernet with DHCP:");
  if (Ethernet.begin(mac) == 0) {
    Serial.println("Failed to configure Ethernet using DHCP");
    // Check for Ethernet hardware present
    if (Ethernet.hardwareStatus() == EthernetNoHardware) {
      Serial.println("Ethernet shield was not found.  Sorry, can't run without hardware. :(");
      while (true) {
        delay(1); // do nothing, no point running without Ethernet hardware
      }
    }
    if (Ethernet.linkStatus() == LinkOFF) {
      Serial.println("Ethernet cable is not connected.");
    }    
    Ethernet.begin(mac, ip, myDns);           // try to congifure using IP address instead of DHCP:
  } else {
    display.print("DHCP assigned IP ");
    display.println(Ethernet.localIP());
  }
  // give the Ethernet shield a second to initialize:
  delay(1000);
  if (client.connect(server, 80)) {
    Serial.print("connected to ");
    Serial.println(client.remoteIP());
    // Make a HTTP request:
    client.println("GET /search?q=arduino HTTP/1.1");
    client.println("Host: www.google.com");
    client.println("Connection: close");
    client.println();
    Serial.println("connection ok");
  } else {
    // if you didn't get a connection to the server:
    Serial.println("connection failed");
  }
  beginMicros = micros();
  Serial.println("start loop");
  digitalWrite(28, HIGH);
  display.fillScreen(BLACK);
  display.setTextColor(WHITE);
  display.setTextSize(4);
  display.setCursor(30, 200); display.println("Halten Sie bitte die RFID");
  display.setCursor(30, 270); display.println("an den Sensor.");
}

void loop() {
  while (ku_lock == "True"){
    if (rfid.length() <= 8) { 
      if (keyb.available()) {
        for (int count = 1; count < 22; count ++){ 
          auto _key = keyb.read();
          if (keyb.getAscii(_key) != NULL) {
            if (pow(-1,count) <= 0){
              rfid += keyb.getAscii(_key);
              Serial.println(count);
              delay(30);
            }
          }
        }
        rfid=rfid.substring(0,8); Serial.println(rfid); display.println(rfid);
        if (rfid.length()>=8) { RFID_Check(); }
      }
    } 
  }  // Lesen der RFID
  if (digitalRead(22) == HIGH) { ku_prg = 1; PRG_1_START(); }
  if (digitalRead(24) == HIGH) { ku_prg = 2; PRG_2_START(); }
  while (ku_prg != 0 ){
    while ((micros() - 300000) <= timer_1 ){
      for (int i = 1; i <= 11; i ++){
        delay(250);    
        digitalWrite(28, LOW);
        delay(250);
        digitalWrite(28, HIGH);
      }
    }
    ku_prg = 0;
  }
}
void PRG_1_START(){
  display.fillScreen(GREEN);
  display.setTextColor(BLACK);
  display.setTextSize(5);
  display.setCursor(20, 20); display.println("Programm 1 gewählt");
  display.setCursor(20, 200); display.println("Sie haben 10 Minuten Zeit,");
  display.setCursor(20, 260); display.println("den Startknopf zu drücken.");
  timer_1 = micros();
} // Bildschirm Programm 1
void PRG_2_START(){
  display.fillScreen(GREEN);
  display.setTextColor(BLACK);
  display.setTextSize(5);
  display.setCursor(20, 20); display.println("Programm 2 gewählt");
  display.setCursor(20, 200); display.println("Sie haben 10 Minuten Zeit,");
  display.setCursor(20, 260); display.println("den Startknopf zu drücken.");
  timer_1 = micros();
} // Bildschirm Programm 2
void PRG_1(){
  t_start = micros();
  display.fillScreen(GREEN);
  display.setTextColor(BLACK);
  display.setTextSize(5);
  display.setCursor(10, 10); display.println("Programm 1 gestartet");
  if (client.connect(server, 80)) { // if you get a connection, report back via serial:
    String str = "insert into WASCHEN (KU_RFID, WA_DATUM, WA_START) values ('" + rfid +"', GETDATE(), CURRENT_TIMESTAMP)";    //rfid.substring(0,8);
    str.replace(" ", "%20");
    str.replace("'", "%27");
    client.println("GET /SQL.aspx?tell=" + str + " HTTP/1.1");
    client.println("Host: www.breitenstein.ag");
    client.println("Connection: close");
    client.println();
  }
  for (int i = 1; i <= 11; i ++){
    delay(500);    
    digitalWrite(28, LOW);
    delay(500);
    digitalWrite(28, LOW);
  }
  delay(10000);
  display.fillScreen(BLACK);
  display.setTextColor(WHITE);
  display.setTextSize(4);
  display.setCursor(10, 10); display.println("Ich warte auf eine Eingabe");
  ku_lock = "True";
  rfid="";
  if (client.connect(server, 80)) { // if you get a connection, report back via serial:
    String str = "update WASCHEN set WA_ENDE = CURRENT_TIMESTAMP WHERE (WA_ID = (select MAX(WA_ID) from WASCHEN))";    //rfid.substring(0,8);
    str.replace(" ", "%20");
    str.replace("'", "%27");
    client.println("GET /SQL.aspx?tell=" + str + " HTTP/1.1");
    client.println("Host: www.breitenstein.ag");
    client.println("Connection: close");
    client.println();
  }  
  digitalWrite(28, HIGH);
}
void PRG_2(){
  display.fillScreen(GREEN);
  display.setTextColor(BLACK);
  display.setTextSize(5);
  display.setCursor(10, 10); display.println("Programm 2 gestartet");
  for (int i = 1; i <= 11; i ++){
    delay(500);    
    digitalWrite(32, LOW);
    digitalWrite(36, HIGH);
    delay(500);
    digitalWrite(32, HIGH);
    digitalWrite(36, LOW);
  }
  display.fillScreen(BLACK);
  display.setTextColor(WHITE);
  display.setTextSize(4);
  display.setCursor(10, 10); display.println("Ich warte auf eine Eingabe");
  ku_lock = "True";
  rfid="";
  digitalWrite(28, LOW);
  digitalWrite(32, HIGH);
  digitalWrite(36, LOW);
}
void RFID_Check(){
  String readString, readString1;
  int x=0; //for counting line feeds
  char lf=10; //line feed character
  if (client.connect(server, 80)) { // if you get a connection, report back via serial:
    String str = "Select%20*%20from%20KUNDE%20where%20(KU_RFID%20='" + rfid.substring(0,8) +"')";    //rfid.substring(0,8);
    display.fillScreen(BLACK);
    display.setTextColor(WHITE);
    display.setCursor(0, 0);
    display.print("send request to server: "); display.println(client.remoteIP());
    client.println("GET /SQL.aspx?ask=" + str + " HTTP/1.1");
    client.println("Host: www.breitenstein.ag");
    client.println("Connection: close");
    client.println();
    delay(2000);       
  } else {
    // if you didn't get a connection to the server:
    display.println("connection failed");
  }
  if (client.connect(server, 80)) { // if you get a connection, report back via serial:
    display.print("load file server: "); display.println(client.remoteIP());
    client.println("GET /ASK.txt HTTP/1.1");
    client.println("Host: www.breitenstein.ag");
    client.println("Connection: close");
    client.println();
  }
  while(client.connected() && !client.available()) delay(1); //waits for data
  while (client.connected() || client.available()) { //connected or data available
    char c = client.read(); //gets byte from ethernet buffer
    if ( c == lf ) {x=x+1;}
    if ( x >=10 ) {if ( c != lf) {ku_result += c;}} //building readString
   }
  client.stop(); //stop client
  //ku_result to single strings
  ku_lock = ku_result.substring(0, ku_result.indexOf(" "));
  ku_lock.trim();
  ku_name = ku_result.substring(ku_result.indexOf(" ")+1);
  Serial.println(ku_result);   
  Serial.println(ku_lock);
  Serial.println(ku_name);   
  ku_result= "";
  if (ku_lock == "False"){
    display.fillScreen(GREEN);
    display.setTextColor(BLACK);
    display.setTextSize(4);
    display.setCursor(10, 10); display.println("Willkommen");
    display.setCursor(10, 50);  display.println(ku_name);
    display.setCursor(10, 110); display.println("Programme:");
    display.setCursor(10, 170); display.println("1 Nur Waschen");
    display.setCursor(10, 210); display.println("2 Waschen mit Lift");
    digitalWrite(28, HIGH);
  }
  else
  {
    display.fillScreen(YELLOW);
    display.setTextColor(BLACK);
    display.setTextSize(4);
    display.setCursor(10, 10); display.println("Willkommen");
    display.setCursor(10, 50);  display.println(ku_name);
    display.setCursor(10, 110); display.println("Die Karte ist nicht aktiviert.");
    display.setCursor(10, 200); display.println("Melden Sie sich bei unserem");
    display.setCursor(10, 250); display.println("Werkstattpersonal.");    
    digitalWrite(28, HIGH);
    /* 10 sekunden warten, dann wieder auf Startbidlschirm */
    delay(10000);
    display.fillScreen(BLACK);
    display.setTextColor(WHITE);
    display.setTextSize(4);
    display.setCursor(30, 200); display.println("Halten Sie bitte die RFID");
    display.setCursor(30, 270); display.println("an den Sensor.");
    ku_lock = "True";
    rfid="";
  }  
}

markus_breitenstein · November 24, 2024, 4:36pm

It was always for the relais as in the first post. The thing with the LED means, thet the Arduino did past away....

markus_breitenstein · November 24, 2024, 4:54pm

exactly... thats why i have to wait some days to get a new one...

Topic		Replies	Views
Help with dim LED challenge - please help! General Guidance	27	185	August 21, 2026
Low voltage output pin 9 Programming	57	1009	July 18, 2025
A6 A7 problem causes data error Classic Nano	6	153	June 13, 2025
Trouble with blinking an LED Programming	10	213	June 12, 2026
Does switching pinMode from INPUT to OUTPUT produce reliable output LOW? Programming	33	446	November 30, 2025

pinMode Problem

Related topics