ESP32でwifiに接続できない

; PlatformIO Project Configuration File
;
;   Build options: build flags, source filter
;   Upload options: custom upload port, speed and extra flags
;   Library options: dependencies, extra library storages
;   Advanced options: extra scripting
;
; Please visit documentation for the other options and examples
; https://docs.platformio.org/page/projectconf.html

[env:esp32dev]
platform = espressif32
board = esp32dev
framework = arduino

#include <Arduino.h>
#include <WiFi.h>

const char * SSID = "{接続先wifiのSSID}";
const char * PASSWORD = "{接続先wifiのパスワード}";

void setup() {
    Serial.begin(9600);
    // wifi接続の流れを最初から追えるようにするため、キーボード入力を待つ
    while (!Serial.available()) {
        Serial.println("put some char...");
        delay(500);
    }
    Serial.readString();
    // 接続開始
    Serial.printf("Connecting to %s\n", SSID);
    WiFi.disconnect(true, true);
    WiFi.mode(WIFI_STA);
    WiFi.begin(SSID, PASSWORD);
    wl_status_t status = WiFi.begin(SSID, PASSWORD);
    while (status != WL_CONNECTED) {
        status = WiFi.status();
        Serial.println(
            status == WL_NO_SHIELD       ? "no shield" :
            status == WL_IDLE_STATUS     ? "idle" :
            status == WL_NO_SSID_AVAIL   ? "no ssid available" :
            status == WL_SCAN_COMPLETED  ? "scan completed" :
            status == WL_CONNECT_FAILED  ? "connect failed" :
            status == WL_CONNECTION_LOST ? "connection lost" :
            status == WL_DISCONNECTED    ? "disconnected" :
        /** status == WL_CONNECTED      */ "connected"
        );
        if (status == WL_NO_SSID_AVAIL) {
            WiFi.disconnect(true, true);
            WiFi.begin(SSID, PASSWORD);
            ESP.restart();
        }
        delay(500);
    }
    Serial.println("Connected.");
    Serial.printf("IP address: %s\n", WiFi.localIPv6().toString().c_str());
}

void loop() {}

--- Available filters and text transformations: colorize, debug, default, direct, esp32_exception_decoder, hexlify, log2file, nocontrol, printable, send_on_enter, time
--- More details at https://bit.ly/pio-monitor-filters
--- Miniterm on /dev/ttyUSB0  9600,8,N,1 ---
--- Quit: Ctrl+C | Menu: Ctrl+T | Help: Ctrl+T followed by Ctrl+H ---
put some char...
put some char...
put some char...
put some char...
put some char... # ここで1文字入力
Connecting to {ssid}
disconnected
disconnected
disconnected
disconnected
disconnected
no ssid available
# ESP.restart()が呼ばれる
!�
��ܠ��J��1��1!���!�J�put some char... # 振り出しに戻る
put some char...
... # 何度やっても同じ流れ