Amazon.com: ESP8266 ESP-12 ESP-12F NodeMcu Mini D1 Module WeMos Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino,Compatible with WeMos D1 Mini (Type-C) : Electronics
Virtual Keyboard Esp8266 Esp-12f Esp-12e Atmega32u4 Wifi Development Board Usb Tf Micro Sd Card Slot For Arduino - Integrated Circuits - AliExpress
WiFi Module - ESP8266 - RobotShop
Prototyping boards for my ESP32 based wireless keyboard firmware : r/MechanicalKeyboards
Wifi Keyboard ESP8266 - Apps on Google Play
How to Generate Crackable Wi-Fi Handshakes with an ESP8266-Based Test Network « Null Byte :: WonderHowTo