Hey guys, nice to know you all. im learning the embedded system and have the project below which i don't know how to start and do it. could someone help me on it?
Overall objective of the project: To design and develop a data acquisition system.
Using the features of the PIC18f452/4520 micro-controller and the associated Input/Output board available develop a system to sample and log analogue voltage readings at a specified frequency (in this case - 8 analogue inputs). For example very second.
the system MUST use timer interrupts to ensure accurate and periodic sampling of the analogue voltage. If any of the input voltage exceeds 3.5V, the buzzer should be activated. The sampled data should be stored in memory for later download via RS232 to a PC.
Additionally the data sampling could be made flexible and under user control. For example the sampling rate could be variable rather than fixed, or maybe selectable from a range of values.
The sampling rate must be selectable and under user control.
Design and show how the acquired data can be transferred to a PC and then made available on the screen display. E.g.dumb terminal display.
** Please help me...i'm interested with embedded system, and i wanna do further learning on it. with the help of you sir to help me produce the system, i would greatly appreciate it.