Amazon.com: HiLetgo 1PC ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Small) : Electronics
Cheap ESP8266 Microcontroller Development Board Module WiFi Function Open Source Hardware – MakerFocus
D403 New Wireless Module Nodemcu Lua Wifi Internet Of Things Development Board Based Esp8266 With Pcb Antenna And Usb Port 10pcs - Integrated Circuits - AliExpress
ESP-PROG, Flexible ESP8266 and ESP32 Programmer - PCB Artists
Adafruit HUZZAH ESP8266 Breakout : ID 2471 : $9.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Relay Shield for ESP8266 ESP-01
MicroPython for ESP8266 Development Workshop eBook by Agus Kurniawan - EPUB Book | Rakuten Kobo United States
Amazon.com: JacobsParts ESP8266 ESP-12F WiFi Microcontroller USB Development Board NodeMCU MicroPython : Electronics
OSOYOO ESP8266 WiFi Module, ESP-12S WiFi Serial Module Board for Ardui – OSOYOO.Store
Assembled Adafruit Feather HUZZAH with ESP8266 With Headers : ID 3046 : $18.95 : Adafruit Industries, Unique & fun DIY electronics and kits