I undertook a project to develop a wireless keypad system communicating with a router, a task that demanded a comprehensive embedded system design. Utilizing NRF24l01 for wireless communication, I orchestrated the integration of an ESP8266 as the controller for the keypad, seamlessly collecting data from pushbutton inputs and transmitting it through NRF to the designated server. Beyond the embedded system architecture, I undertook the meticulous design of the PCB layout and executed the electronic design, ensuring the keypad's functionality as a standalone unit. This involved a multi-faceted approach encompassing hardware integration, wireless protocol proficiency, and electronic design finesse, resulting in a fully operational wireless keypad solution with enhanced functionality and standalone capabilities