Nodemcu/ESP8266 Based IOT Development Board

Our product is designed in developer point of view.It would helpful to the Embedded developers,Hobbyist and student to understand the 

working model of WIFI modules in IOT platforms as well as  user can upload their own program and easily go for new project.

WIFI-IOT development board-geek wave solution

IOT wifi module

wifi relay board

serial wifi arduino esp8266

Add WIFI to any project 

Using UART communication port pin out ,

we can send and receive data from any micro controller or sensors like GPS, etc., having TTL port using webpage (Link-CONSOLE PAGE) 


  • Pre- programmed development board- Ready to go 
  • MUlTI - PROJECT in single module -Home automation|Robotics|Serial to WIFI|ADC
  • On board 4-Channel Relay 
  • Easy network configuration
  • Works in AP mode as well as STA mode
  • Uart to wifi communication(baud rate:9600)
  • Automatically find and connect to the available wifi mode(AP/STA) 
  • LED indicator easy to identify the connected mode
  • pin out for all ports of esp8266 module
  • It's a nodemcu adapter type(compatible with all version)
  • Memory backup Saves the last state of Relays-if power has gone.
  • communication through TCP/IP
  • Secured password connection(WPA2 PSK)
  • Upload any custom firmware to the device using micro usb
  • Monitoring Relay operation,assigned IP .. via serial port
  • All components are through hole type it would helpful to beginners for rework
esp8266 module -AP mode

AP Mode

AP Mode allows smartphone to access our device WIFI directly,therefore  can achieve remote control although there is no need of router connection.

Go to WIFI settings of your Smart phone/Tablet/PC and select the ssid shown below to connect our device.



Default IP: this IP in your browser and go for the control page)

nodemcu arduino development board

Plug and play module

iot wifi module-station mode

STA Mode 

In STATION Mode our device and smart phone both are connected to the router .So user can access our device through router.


Save your Router User name and password in Networking configuration page through AP default IP:


Once saved, our device automatically restart and connected to the STA mode.


To find our device IP, first open your router page


Click, LAN tab on router page-Find assigned IP address for our devicewhich is corresponding to our device MAC address.

using this IP  you can access the control page.

Another and simplest way to find assigned IP through our Android APP 

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esp8266 uart-serial to wifi

3.3V Interface Diagram

uart esp8266 -serail to wifi -geek wave solution

5V Interface Diagram

  • WIFI-Home Automation