electronically controlled automated security access gate : LAP Lambert Academic Publishing : 9786200310439 : 6200310432 : 12 Sep 2019 : The control of access to a property or building that uses a gate is better done using electronic devices. The electronically controlled automated security access gate achieves this by using an RF transmitter-receiver pair. A microcontroller is programmed to decode a given sequence of charaters that is entered on a keypad and command a transmitter module to send out this code as signal at a given radio frequency. Upon reception of this RF signal by the receiver module, another microcontroller activates a driver circuitry to operate the gate by opening or closing it automatically. The codes for the microcontrollers were written in C language and were debugged and compiled using the KEIL Microvision 4 integrated development environment. The resultant Hex files were programmed into the memory of the microcontrollers with the aid of a universal programmer.