Just purchased an Arduino Uno R3 board not too long ago but having a lot of compatibility issues when setting up.
I have Arduino code prepared and all the necessary parts for the project being built but experiencing compatibility issues with the main Arduino board.
Even when the board is connected as a third party device and the device is recognized, other forms of compatibility issues arises and modules do not sync.
Assistance would be appreciated.
Hi @fabiyij2. The Uno is not compatible with Arduino IoT Cloud, so this is the normal and expected result.
These are the boards listed as compatible with Arduino IoT Cloud:
- Arduino NANO 33 IoT
- Arduino MKR WiFi 1010
- Arduino MKR WAN 1310
- Arduino MKR NB 1500
- Arduino MKR GSM 1400
- Arduino MKR1000
- Arduino Portenta H7 (M7 core)
- Arduino Nano RP2040 Connect
- ESP8266
- ESP32
- Pelion
- Generic LoRa
You can use the Uno with Arduino Web Editor if you like:
Or you can use it with the desktop Arduino IDE:
I am still having server issue when using the web editor, also modules connecting to the Arduino board are not responding even with the lights on the board indicating it is connected
I can see from your screenshot that there was at least one successful compilation. So I think this was maybe an intermittent issue. Please try it again now to see whether the problem has already been resolved.
Please post your full sketch.
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/*
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
#define LED_G 5 //define green LED pin
#define LED_R 4 //define red LED
#define RELAY 3 //relay pin
#define BUZZER 2 //buzzer pin
#define ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
pinMode(LED_G, OUTPUT);
pinMode(LED_R, OUTPUT);
pinMode(RELAY, OUTPUT);
pinMode(BUZZER, OUTPUT);
noTone(BUZZER);
digitalWrite(RELAY, LOW);
Serial.println("Put your card to the reader...");
Serial.println();
}
void loop()
{
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if (content.substring(1) == "83 23 38 BB") //change here the UID of the card/cards that you want to give access
{
Serial.println("Authorized access");
Serial.println();
delay(500);
digitalWrite(RELAY, HIGH);
digitalWrite(LED_G, HIGH);
delay(ACCESS_DELAY);
digitalWrite(RELAY, LOW);
digitalWrite(LED_G, LOW);
}
else {
Serial.println(" Access denied");
digitalWrite(LED_R, HIGH);
tone(BUZZER, 300);
delay(DENIED_DELAY);
digitalWrite(LED_R, LOW);
noTone(BUZZER);
}
}
*/
void setup() {
}
/*
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
#define LED_G 5 //define green LED pin
#define LED_R 4 //define red LED
#define RELAY 3 //relay pin
#define BUZZER 2 //buzzer pin
#define ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
pinMode(LED_G, OUTPUT);
pinMode(LED_R, OUTPUT);
pinMode(RELAY, OUTPUT);
pinMode(BUZZER, OUTPUT);
noTone(BUZZER);
digitalWrite(RELAY, LOW);
Serial.println("Put your card to the reader...");
Serial.println();
}
void loop()
{
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if (content.substring(1) == "83 23 38 BB") //change here the UID of the card/cards that you want to give access
{
Serial.println("Authorized access");
Serial.println();
delay(500);
digitalWrite(RELAY, HIGH);
digitalWrite(LED_G, HIGH);
delay(ACCESS_DELAY);
digitalWrite(RELAY, LOW);
digitalWrite(LED_G, LOW);
}
else {
Serial.println(" Access denied");
digitalWrite(LED_R, HIGH);
tone(BUZZER, 300);
delay(DENIED_DELAY);
digitalWrite(LED_R, LOW);
noTone(BUZZER);
}
}
*/
void setup() {
}
void loop() {
}
void loop() {
}
**type or paste code here**
Everything between this: /* and this */ is a comment, and thus ignored by the compiler. There is a large amount of code in the sketch you posted that is commented out in this manner. After removing the commented code, we can see that the actual code of the sketch looks like this:
void setup() {
}
void setup() {
}
void loop() {
}
void loop() {
}
This code will not compile. If if did compile, it would not do anything. So the description of its behavior:
is normal and expected.
You can learn how to use the MFRC522 library by studying its example sketches.
/*
#include <SPI.h>
#include <MFRC522.h>
#define SS_PIN 10
#define RST_PIN 9
#define LED_G 5 //define green LED pin
#define LED_R 4 //define red LED
#define RELAY 3 //relay pin
#define BUZZER 2 //buzzer pin
#define ACCESS_DELAY 2000
#define DENIED_DELAY 1000
MFRC522 mfrc522(SS_PIN, RST_PIN); // Create MFRC522 instance.
void setup()
{
Serial.begin(9600); // Initiate a serial communication
SPI.begin(); // Initiate SPI bus
mfrc522.PCD_Init(); // Initiate MFRC522
pinMode(LED_G, OUTPUT);
pinMode(LED_R, OUTPUT);
pinMode(RELAY, OUTPUT);
pinMode(BUZZER, OUTPUT);
noTone(BUZZER);
digitalWrite(RELAY, LOW);
Serial.println("Put your card to the reader...");
Serial.println();
}
void loop()
{
// Look for new cards
if ( ! mfrc522.PICC_IsNewCardPresent())
{
return;
}
// Select one of the cards
if ( ! mfrc522.PICC_ReadCardSerial())
{
return;
}
//Show UID on serial monitor
Serial.print("UID tag :");
String content= "";
byte letter;
for (byte i = 0; i < mfrc522.uid.size; i++)
{
Serial.print(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " ");
Serial.print(mfrc522.uid.uidByte[i], HEX);
content.concat(String(mfrc522.uid.uidByte[i] < 0x10 ? " 0" : " "));
content.concat(String(mfrc522.uid.uidByte[i], HEX));
}
Serial.println();
Serial.print("Message : ");
content.toUpperCase();
if (content.substring(1) == "83 23 38 BB") //change here the UID of the card/cards that you want to give access
{
Serial.println("Authorized access");
Serial.println();
delay(500);
digitalWrite(RELAY, HIGH);
digitalWrite(LED_G, HIGH);
delay(ACCESS_DELAY);
digitalWrite(RELAY, LOW);
digitalWrite(LED_G, LOW);
}
else {
Serial.println(" Access denied");
digitalWrite(LED_R, HIGH);
tone(BUZZER, 300);
delay(DENIED_DELAY);
digitalWrite(LED_R, LOW);
noTone(BUZZER);
}
}
*/
void setup() {
}
void loop() {
}
type or paste code here
I should have spotted that really.
Thank you for your assistance.
You're welcome. Best wishes for success with your Arduino endeavors!
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