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+--- Forum: KC868-A6 (https://www.kincony.com/forum/forumdisplay.php?fid=22)
+--- Thread: Troubles using I2C/IIC bus (/showthread.php?tid=8204)
RE: Troubles using I2C/IIC bus - admin - 06-25-2025
you just need to install PCF8574 library.
PCF8574_library.zip (Size: 23.8 MB / Downloads: 269)
RE: Troubles using I2C/IIC bus - ksarz - 06-26-2025
Hi. There are of the my IDE code:
include <PCF8574.h>
#include <Wire.h>
#define SDA_PIN 4 // GPIO номер SDA
#define SCL_PIN 15 // GPIO номер SCL
void setup() {
Wire.begin(SDA_PIN, SCL_PIN); // Задали новые контакты для I²C
// Инициализируем I²C
Serial.begin(115200); // Инициализируем последовательный порт
while (!Serial); // Ждем открытия порта
Serial.println("\n\n--- I²C Scanner ---");
}
void loop() {
byte error, address;
int nDevicesFound = 0;
Serial.println("Scaning...");
for (address = 1; address < 127; address++ ) {
Wire.beginTransmission(address);
error = Wire.endTransmission();
if (error == 0) {
Serial.print("Device found at address: 0x");
if (address < 16) {
Serial.print("0");
}
Serial.println(address, HEX);
nDevicesFound++;
}
else if (error == 4) {
Serial.print("Unknown error at address: 0x");
if (address < 16) {
Serial.print("0");
}
Serial.println(address, HEX);
}
}
if (nDevicesFound == 0) {
Serial.println("No I²C devices found.\n");
} else {
Serial.println("Scan complete.\n");
}
delay(5000); // Повторяем проверку каждые 5 секунд
}
Where it any mistake?
RE: Troubles using I2C/IIC bus - ksarz - 06-30-2025
What does the problem at yours demo Relays code?
May be the KC-868-A6 Board is defective?
RE: Troubles using I2C/IIC bus - admin - 06-30-2025
please download KCS v2 firmware to test your board firstly.
if KCS v2 firmware work well, that means hardware is well, you need to check your software system.
RE: Troubles using I2C/IIC bus - ksarz - 07-02-2025
(06-30-2025, 11:20 PM)admin Wrote: please download KCS v2 firmware to test your board firstly.
if KCS v2 firmware work well, that means hardware is well, you need to check your software system.
Dear Admin!
I have already installed the KSV firmware on my board several times.The version of the my Firmware is KC868_A6-v2.2.14.bin.
See you the attachment.
After installation this firmware I2C and relays does not wort on my Board too!
RE: Troubles using I2C/IIC bus - admin - 07-02-2025
after you downloaded KCS v2 firmware, login by web browser, click "monitor" webpage, turn on/off relay button ico, relay can't work , right?
RE: Troubles using I2C/IIC bus - ksarz - 07-02-2025
Dear,Admin!
This is incredible!!
The KC 868 Board worked. But in the Monitor Menu there is NO RELAY, Please see screenshot
RE: Troubles using I2C/IIC bus - admin - 07-02-2025
take a photo of your PCB board.
RE: Troubles using I2C/IIC bus - ksarz - 07-03-2025
(07-02-2025, 10:44 AM)admin Wrote: take a photo of your PCB board.
There is of Photo my Board
RE: Troubles using I2C/IIC bus - admin - 07-03-2025
what power supply you are using? suggest use DC12V 2A. suggest you change a new power supply for a testing.