ついでに arduino 型 Wemos D1 R32
　https://www.cnx-software.com/2017/09/04/espduino-32-wemos-d1-r32-esp32-boards-support-some-arduino-uno-shields/
こっちは $5.78
　https://www.aliexpress.com/item/For-Wemos-D1-ESP32-WiFi-Bluetooth-4MB-Flash-UNO-D1-R32-Board-Module-CH340-CH340G-Development/32910246554.html