Muhammad ArslanZubair Hameed KhanShabahat Khan Naizi2012-06-182012-06-182012https://escholar.umt.edu.pk/handle/123456789/528Project Advisor: Muhammad Basit ShahabTechnique has been proposed to modernize the existing billing procedure. In this project, 8051 microcontroller have been used to control the main operation which is being performed in this system. Electromechanical meter has been installed in this project to measure the consumption of power in kilo – watt hours. To get benefits of GSM techniques a GSM module has been implemented in this system. Module has been interfaced with microcontroller, and microcontroller communicates with module through AT Command. External memory has been interfaced with microcontroller to store the units which will be charged by suppliers. Opto coupler sensor which is hybrid of photo diode and infrared light emitting diode, have been used to detect the motion of metallic which continues its motion to show the consumption of power. This sensor has also been interfaced with microcontroller to receive the pulse on the completion on one revolution of a disc. Triac has been used to work as a switch it also receive signal from microcontroller to control the switching of power supply. In this way both suppliers and consumers get benefits of this technique.enBS-ThesisElectromechanical MeterGSM TechniquesThesis