Thanks for the advice skimask, however, I still wanted to make this system separate or independent from the main control system so that the main control will have no codes about the A/D conversion and Serial transmit of the voltages that I will be monitoring. Accuracy is really not a problem but the number of available A-D pins available on a 16F877, I will be needing at least 10 available pins to do this completely. The following components are going to be monitored by this system.
*Lights Voltage Supply (6V)
*Servo Voltage Supply (5V)
*Main Voltage Supply (12V)
*Receiver Voltage Supply (9V)
*Transmitter Voltage Supply (9V)
*Drive Motor Voltage Supply (7.2V)
*Water Pump Voltage Supply (7.2V)
*Microcontroller (Main) Voltage Supply (5V)
*Sensors Voltage Supply (5V)
*Wireless RF Camera (9V)
Each component will depend on the Main Supply which is 12V and then converted to specific voltage using fixed voltage regulators except for the drive motors, pump, receiver/transmitter and camera.
If you have any idea on how to do this I would greatly appreciate your time and concerns.
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