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Now-a-days, the sales centres are using Digital Weighing Machines (DWM) for precision measurement of weight, acquisition of rate from keypad and computation of cost. The weight, rate and cost are shown on 7-segment bright display devices. The implementation of a DWM can be carried out using various types of hardware topologies and accordingly the cost varies. The FPGA based DWM is the most competitive...
The Electricity Company implements the ‘Prepaid Electrical Energy Meter (PEM)’ scheme among the electricity consumers to meet the objectives of: (i) collecting advance money and (ii) motivating the customers to make conservative use of electricity. The 2nd objective can be effectively achieved with an indoor type PEM fitted with 7-segment bright display unit. The meter designer aims, using appropriate...
At present times, the Electricity Company supplies LCD-type Electrical Energy Meters (LCDEM), and mount them on the outdoor panels. The users cannot time-to-time monitor the consumed energy units to asses that the consumption is exceeding their budget, and they should be aware to shut off the unnecessary loads. A ‘Bright Display Energy Meter (BDEM)’, when fitted indoor, will aware the consumers for...
The 89S52 microcontroller (MCU) is very popular among the students, teachers, amateurs, engineers, scientists, and hobbyists for building electronics projects and consumer products. Successful realization of MCU based products depends on the sound understanding of architecture, instruction and interfacing of the MCU, which can be effectively acquired with the help of a ‘Microcontroller Learning System...
For the period 1971–1975, the industrial design engineers primarily studied the 4004, 8008 and 8080 microprocessors for the purposes of building control circuits and consumer products. The introduction of the superior 8-bit 8085 microprocessor in 1976 drew the attention of the academicians who were charmed at the architecture and functionality of this chip and they shortly included it as a course...
ABSTRACT The 89S52 microcontroller (MCU) is very popular among the students, teachers, engineers, scientists and amateurs to build small and cost effective projects for learning purposes and or to incorporate it in a bigger project. In these projects, the chip remains in the system and occasionally need arises to change the program bytes of the code memory (flash) without removing the MCU from the...
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