For carputer fanatics (but not only) a serial voltmeter to monitor the battery voltage.
Features
uC Pic12F675
voltage range 9-20v
resolution 100mV
Com. port 2400baud , N , 8 , 1
sampling rate ~1Sec.
Attached SerVolt.zip (Pbp source code, hex file, schematic)
Regards
Gianni
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