Yes, I know, but I asked it because if on Arduino I execute only SPI.begin(); // Init SPI bus mfrc522.PCD_Init(); // Init MFRC522 I already see the signal in MISO pin. On ESP32 the signal is always flat and then I tought that can be a wrong initialization of SPI bus and not a problem into the code. ...

Hi, I'm trying to use MFCRC522 whith this code: https://github.com/blmhemu/ESP32-MFRC522 . It doesn't work, but after a lot of tests without satisfaction, I've tried to analyze the signal with the osccilloscope. The result is that the signals are flat in all SPI configured pins. So, I've wired the M...

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Pardon, I understanding.
The problem is not created from this loop but from another task.

Stefano

Hi, I've a question... Why this code freeze the loop? printf("Start\n"); while(1) //while (!gpio_get_level(CLOSESWITCH)) { printf("%d\n", curServoPos); //curServoPos -= changeDelta; /*ledc_set_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNEL_0, curServoPos); ledc_update_duty(LEDC_HIGH_SPEED_MODE, LEDC_CHANNE...

I didn't want to stop you. It's just that you can find more (esp32) examples written in C instead of C++.

Yes, I know, but I think that to learn C++ maybe is better starting from desktop applications.
I have to learn a lot again.


Stefano

Many thanks for answer.

Btw. embedded programming is not a good start to learn C++.

Infact, now I've decided to develop my project in pure C

Stefano

Hi, many thanks for link. Now I've solved this issue, but I've another problem. When I compile my class, I've these error: $ make LD build/nvs.elf /home/stefano/Programs/ESP32/esempi/WiFiConnect/build/main/libmain.a(wificonn.o):(.literal._ZN8WIFIConn13event_handlerEPvP14system_event_t+0x0): undefine...

Hi, I'm studying C++ and I'm trying to write a class to connect to AP using esp-idf. During compilation, I've these errors: $ make CXX build/main/wificonn.o In file included from /home/stefano/Programs/ESP32/.dev-tools/esp-idf/components/esp32/include/esp_timer.h:44:0, from /home/stefano/Programs/ES...

Many thanks for info

Stefano