my $spi_channel = 0; my $adc = RPi::ADC::MCP3008->new($spi_channel); my $adc_channel = 0; # 0-7 single ended, 8-15 differential my $raw = $adc->raw($adc_channel); my $percent = $adc->percent($adc_channel); print "input value: $raw, $percent\n"; __END__ input value: 776, 78.49