Battery voltage indicator
 

I'm interested in building something to allow me to monitor the backup
battery voltage on our local repeater. I was thinking of using some CAT-1000
user input leads to be activated depending on the battery voltage. I could
probably use some comparators and logic to allow only one lead to be active,
depending on the battery voltage and then use that to activate a macro to
'say' the actual voltage. Anyway, I was wondering if anyone had any
thoughts on the idea and if maybe someone already created such an animal.

Joe AG4QC

"Joel" wrote in message
...
I'm interested in building something to allow me to monitor the backup
battery voltage on our local repeater. I was thinking of using some
CAT-1000
user input leads to be activated depending on the battery voltage. I could
probably use some comparators and logic to allow only one lead to be
active,
depending on the battery voltage and then use that to activate a macro to
'say' the actual voltage. Anyway, I was wondering if anyone had any
thoughts on the idea and if maybe someone already created such an animal.

A microcontroller with an ADC would be the best way. I'd use the PIC 12F675
and output the voltage in Morse.

73, Leon