Harvey
Harvey
Thanks ! I used this , but nothing printed in serial....
I see, I used "make monitor". When I open a serial tool, I set the "baud_rate = 921600", it was wrong, it's not as below uart_write_bytes(UART_NUM_1, (char *)tx_buffer, 7); uart_write_bytes(UART_NUM_1,...
I set the pin as below: uart_set_pin(UART_NUM_0, 13, 12, UART_PIN_NO_CHANGE, UART_PIN_NO_CHANGE); It can send the data from serial, but it can't read the data from serial. emmm...
佐助: Yes, qr requires the memory. But when I open the wifi(AP), the qr task can't be open. IF I close the wifi, it works fine. It's wired ！ :D