Amazon.com: KeeYees 3pcs ESP8266 ESP-12E Development Board WiFi WLAN Wireless Module CP2102 for NodeMCU for ESP-12E for Arduino : Electronics
Amazon.com: ACEIRMC 6pcs ESP8266 D1 Mini WiFi Dev Board ESP-12 ESP-12F NodeMcu Mini Module for WeMos Lua 4M Bytes WLAN WiFi Internet Development Board Base on ESP8266 ESP-12F for Arduino : Electronics
Amazon.com: Songhe ESP8266 ESP-12F D1 Mini Module Mini NodeMcu Lua 4M Bytes WLAN WiFi Internet Development Board for Arduino Compatible with WeMos D1 Mini NodeMcu 5pcs : Electronics
Amazon.com: 6pcs ESP8266 NodeMCU LUA CH340 ESP-12E WiFi Internet Development Board 4M Flash Serial Wireless Module for Arduino IDE/Micropython New Version : Electronics
Amazon.com: HiLetgo 1PC ESP8266 NodeMCU CP2102 ESP-12E Development Board Open Source Serial Module Works Great for Arduino IDE/Micropython (Small) : Electronics
Stemedu 2PCS ESP01 ESP8266 Programmer Serial Adapter, USB to ESP-01 Wireless Programming Debug WiFi Module
Amazon.com: DIYmall ESP8266 ESP-01S WiFi Serial Transceiver Module with 4MB Flash : Electronics
Amazon.com: 4Pcs ESP8266 Serial Wifi Module ESP-01 Updated Wireless Transceiver Board 3.3V for Arduino : Electronics
Amazon.com: KEYESTUDIO 3.3V 2Pcs ESP8266 ESP-01 ESP01 WiFi Wireless Serial Transceiver Receiver Module Starter Kit for Arduino R3 Raspberry Pi Project : Electronics
Amazon.com: Wishiot ESP8266 ESP-01S WiFi Wireless Serial Transceiver Module 4MB Flash 3.3V Wi-Fi Module Compatible with Ar-duino IDE (5) : Electronics
Amazon.com: Dorhea 4PCS ESP8266 ESP-12E WiFi Serial Wireless Transceiver Module ESP12E Remote Port Development Board Support STA/AP/STA+AP Working Mode for NodeMCU : Electronics
HiLetgo ESP8266 5V WiFi Relay Module TOI APP Control for Smart Home Automation System: Amazon.com: Tools & Home Improvement
Stemedu ESP8266 ESP-01S Adapter WiFi Module Wireless Serial Transceiver with 4MB Flash DIP-8 3-6V for Arduino (Pack of 5PCS)
Amazon.com: Hosyond 5Pcs D1 Mini NodeMcu ESP8266 ESP-12F Wireless WiFi Module Internet of Things Development Board Compatible with Arduino/WeMos : Electronics