I have find way to solve it. #include <inttypes.h> #include "nvs_flash.h" #include "nvs.h" void write_to_EEPROM(char *p,char *value, uint32_t size) { char *saveId; uint32_t sizeSave = (size); saveId = malloc(sizeSave); strcpy(saveId,value); nvs_handle_t my_handle; nvs_open("storage", NVS_READWRITE, ...

Thanks allot for your answer. Can you help save string data into flash in custom AT command? I couldn't find command for this operation.

Hi! How can I call other AT command from self-defined AT command? For, example at_custom_cmd.c static uint8_t at_test_cmd_test(uint8_t *cmd_name) { uint8_t buffer[64] = {0}; snprintf((char *)buffer, 64, "test command: <AT%s=?> is executed\r\n", cmd_name); esp_at_port_write_data(buffer, strlen((char ...