you use a relay circuit. something thing like this http://www.amazon.com/SainSmart-4-CH-4-Channel-Relay-Module/dp/B0057OC5O8/ref=sr_1_1?ie=UTF8&qid=1384309498&sr=8-1&keywords=sainsmart+relay I'm not sure if that exact one would work, but hope you get the idea. Relays can be switched at small currents depending on the type you select.
On Sunday, November 10, 2013 9:38:23 AM UTC-6, Dacobi wrote: > > Ah yes. I just assumed you meant light bulbs connected to the grid. > Den 10/11/2013 13.57 skrev "Bodo Kaiser" <[email protected] <javascript:> > >: > >> Why does a light bulb run on alternating current? >> >> I remember using a normal battery with light bulbs in school and it did >> work ^^. >> >> However thanks for the hint with the relay! >> >> Am 10.11.2013 um 12:30 schrieb Jacob Ole Juul Kolding >> <[email protected]<javascript:> >> >: >> >> A light bulb runs on alternating current and a transistor only works with >> direct current. But you could use a relay. >> Den 10/11/2013 12.27 skrev "Bodo Kaiser" <[email protected]<javascript:> >> >: >> >>> Isn’t there something easier to do? >>> >>> Wouldn’t a specific transistor work without damaging the Beagleboard? >>> >>> Am 10.11.2013 um 12:24 schrieb Jacob Ole Juul Kolding >>> <[email protected]<javascript:> >>> >: >>> >>> You can use an optically isolated triac >>> Den 10/11/2013 12.14 skrev "Bodo Kaiser" <[email protected]<javascript:> >>> >: >>> >>>> Hey, >>>> >>>> I want to power some good old light bulbs with my BB. As the gpios do >>>> not give enough Amphere I though on powering them with a separate power >>>> source and then using the GPIOs just as a switch. >>>> >>>> How would such a a thing look like? Do I use transistors for such stuff? >>>> >>>> Best, >>>> Bo >>>> >>>> -- >>>> 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] <javascript:>. >>>> For more options, visit https://groups.google.com/groups/opt_out. >>>> >>> >>> -- >>> For more options, visit http://beagleboard.org/discuss >>> --- >>> You received this message because you are subscribed to a topic in the >>> Google Groups "BeagleBoard" group. >>> To unsubscribe from this topic, visit >>> https://groups.google.com/d/topic/beagleboard/r6JGF8Qz5CE/unsubscribe. >>> To unsubscribe from this group and all its topics, send an email to >>> [email protected] <javascript:>. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >>> >>> >>> -- >>> 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] <javascript:>. >>> For more options, visit https://groups.google.com/groups/opt_out. >>> >> >> -- >> For more options, visit http://beagleboard.org/discuss >> --- >> You received this message because you are subscribed to a topic in the >> Google Groups "BeagleBoard" group. >> To unsubscribe from this topic, visit >> https://groups.google.com/d/topic/beagleboard/r6JGF8Qz5CE/unsubscribe. >> To unsubscribe from this group and all its topics, send an email to >> [email protected] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> >> >> -- >> 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] <javascript:>. >> For more options, visit https://groups.google.com/groups/opt_out. >> > -- 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]. For more options, visit https://groups.google.com/groups/opt_out.
