D1 Mini - compatible ESP8266 board, v2.0

D1 Mini - compatible ESP8266 development board D1 Mini compatible board with 4 MB flash memory and ESP8266 chipset. The board can be programmed with

Getting Started with ESP8266 NodeMCU Development Board

How to resolve “Board generic (platform esp8266, package esp8266) is unknown” error? — ESP8266 Arduino Core 3.1.2-21-ga348833 documentation

Wemos D1 mini V4.0.0 Type-C USB ESP8266 development board based on 4MB MicroPython - ขาย Arduino อุปกรณ์ฯ ,ESR meter 18650 : Inspired by LnwShop.com

Wemos D1 Mini V3.0.0 4MB WiFi Iot Development Board Based on Esp8266 Compatible WiFi Internet Development Board with Nodemcu - China D1 Mini V3.0.0 4MB, Board

ESP8266 - Wikipedia

Programming the ESP8266 WeMos-D1R2 Using Arduino Software/IDE : 15 Steps - Instructables

Wemos Lolin D1 Mini Pro V2 (HCWEMO0018)

ESP8266 D1 Mini V2 ESP-12F WiFi Module - ProtoSupplies

D1 Mini ESP8266 ESP-12 ESP-12F CH340G V2 USB WeMos D1 Mini WIFI Development Board D1 Mini NodeMCU Lua IOT Board 3.3V With Pins - AliExpress