Hello, Yes...I know. I read earlier from a book that the op amp is a goto source for handling this device, i.e. the LDR/photoresistor.
Seth P.S. Thank you for the heads up. On Sunday, November 10, 2019 at 7:03:26 PM UTC-6, evilwulfie wrote: > > On 11/10/2019 5:52 PM, Dennis Lee Bieber wrote: > > On Sat, 9 Nov 2019 21:19:35 -0800 (PST), in > > gmane.comp.hardware.beagleboard.user Mala Dies > > <[email protected] <javascript:>> wrote: > > > > >from LDRII import MCP3008 #I found this source online and I cannot > figure > >> out what site I found it at currently. Anyway...if this is your source, > say > >> so! I will give you credit. > >> > > Based on Google, the MCP3008 is a multichannel ADC. The > Raspberry Pi > > examples require it because the R-Pi only has binary GPIO. > > > > The BBB has internal ADC (though limited to 1.8V peak, so one > often > > needs a voltage divider to reduce 3.3V (or 5V) data to fit into 0..1.8V) > > (for safety, one might want to limit the peak to 1.7V, and adjust the > > conversion equation somewhat). > > > > https://www.linux.com/tutorials/how-get-analog-input-beaglebone-black/ > > > https://learn.adafruit.com/setting-up-io-python-library-on-beaglebone-black/adc > > > > > >from LDRII import MCP3008 #I found this source online and I cannot > figure > >> out what site I found it at currently. Anyway...if this is your source, > say > >> so! I will give you credit. > >> > > Based on Google, the MCP3008 is a multichannel ADC. The > Raspberry Pi > > examples require it because the R-Pi only has binary GPIO. > > > > The BBB has internal ADC (though limited to 1.8V peak, so one > often > > needs a voltage divider to reduce 3.3V (or 5V) data to fit into 0..1.8V) > > (for safety, one might want to limit the peak to 1.7V, and adjust the > > conversion equation somewhat). > Using an opamp is much safer > > > https://www.linux.com/tutorials/how-get-analog-input-beaglebone-black/ > > > https://learn.adafruit.com/setting-up-io-python-library-on-beaglebone-black/adc > > > -- For more options, visit http://beagleboard.org/discuss --- You received this message because you are subscribed to the Google Groups "BeagleBoard" group. To unsubscribe from this group and stop receiving emails from it, send an email to [email protected]. To view this discussion on the web visit https://groups.google.com/d/msgid/beagleboard/cbfffbe7-c42c-408b-bfc9-9a1634400a87%40googlegroups.com.
