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295.5 C LanguageC language or in simple word we call as coding is written in ISP. Then, weneed to connect the ISPprogrammer with computer or laptop by using USB cable.After that, we programmed the coding that we have written earlier inside themicrocontroller. The assembly language is shown at Appendix A.5.6 Circuit DesignThe functionality of this system can be divided into three main parts asshown in the transmitter, the receiver, the microcontroller and the digital display.The transmitter, enabled via the microcontroller, is designed to activate a 555oscillator with a frequency of 40 KHz. The width of the pulse is 0.1 ms, every 40 msa pulse is transmitted.