Interfacing 7-segment display with PIC12F1822 using CCS PIC C compiler

The easiest way to interface 7-segment display with PIC12F1822 microcontroller is to add a serial-in parallel-out shift register. The adding of the shift register minimizes the number of pins used by the 7-segment display. This topic shows how to make a 3-digit digital counter with multiplexing and 74HC164 shift register using PIC16F877A and CCS PIC C compiler. Interfacing PIC12F1822 with 7-segment display  ...

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Digital logic probe for troubleshooting TTL and CMOS circuits

A logic probe is considered as a stethoscope for engineers and technicians for debugging digital logic circuits that consists of logic gates, memories, registers, etc. A digital multimeter (DVM) can also be used for such analytical purposes but it gives you the numeric value of the voltage at a point instead of the logic state. Depending on whether the circuit is based on TTL or CMOS components, the voltage ...

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