Might be good to read the data from the buffer and store it in your own "buffer" so the FIFO buffer doesn't get fulled. [Codebox] l_count = 0; l_length = 0; get_us = esp_timer_get_time(); stop_us = INTERBYTE_MS*1000; while((l_count==0) && (l_size < reply_limit)) { l_length = uart_read_bytes(s_port,l...