The D1 R2 is a WiFi capable ESP8266EX based development board in the form of the common Arduino UNO board format. This board is compatible with the Arduino IDE and with NodeMCU. The D1 R2 also features an on-board switching power supply which allows you to power the board from a power supply up to 12V.
Handy battery powered ESP8266 ESP12 module test board. Includes on board LEDs, RGB LED and light sensor. Can be setup and controlled without programming using the demo android application.
4 Channel RF Remote Transmitter and Receiver allows to remotely control four appliances. RF Remote Control provides 4 momentary outputs that can be wired to relays and control home appliances, lights, motors, light dimmers, robotic devices, RC cars, computer, etc.
This ESP8266 IC based ESP-01 variant is a WiFi module which can give your Arduino or other electronic projects WiFi capabilities and can even be used on its own by reprogramming the ESP8266 MCU!