eSAT Publishing House
In this paper, the authors present the simulation and test result of a project for wireless data transmission through UART port using ARM and RF transceiver in license free band of frequencies 2.4GHz to 2.4835GHz. It uses ARM7 and MRF24J40 for wireless data transmission through UART port for short-range up to 500 meters. The speed of data transmission is of 250KBps. The output power of source module for 500 meters is 0dBm to 22dBm. The receiver sensitivity of the receiver module is 95dBm.