RE: [beagleboard] Control 5V relay with my BeagleBone Black GPIO
You should be able to just the replace the resistors. On second thought, the LED across the coil was a bad idea. Maybe someone else has a suggestion on that one. No one could make a greater mistake than he who did nothing because he could do only a little. All that is necessary for the triumph of evil is that good men do nothing Edmond Burke (1729 - 1797) http://www.packtpub.com/building-a-home-security-system-with-beaglebone/book http://ca.linkedin.com/pub/bill-pretty/2b/b07/602 From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of cmct...@gmail.com Sent: Wednesday, February 11, 2015 3:53 AM To: beagleboard@googlegroups.com Subject: Re: [beagleboard] Control 5V relay with my BeagleBone Black GPIO Hi bill, Thanks for your help, so i just have to replace the resistors by new ones, for Leds what is your idea to connect them to relay coil? segunda-feira, 9 de Fevereiro de 2015 às 20:57:06 UTC, William Pretty Security escreveu: Hi; I took a look at both circuits. There’s uses an opto-isolator, so shorting the LED should work. In your case, the 1K resistor on the base will load the GPIO too much. I used a 10K base resistor with a 100K pull down. Basically multiply both of your values by 10 and you8 should be fine. I would hook the LED in parallel with the relay coil. Good Luck Bill From: beagl...@googlegroups.com javascript: [mailto:beagl...@googlegroups.com javascript: ] On Behalf Of cmc...@gmail.com javascript: Sent: Monday, February 09, 2015 8:57 AM To: beagl...@googlegroups.com javascript: Subject: [beagleboard] Control 5V relay with my BeagleBone Black GPIO Hi, I have a 5V Relay shield to control with my BBB, i know the GPIO work with 3.3V, i see an instructable that i can shunt the leds in my relay shield and it will work, it is safe for my bbb to do that? Modifications for Driving a 5V relay module from a 3.3V Arduino board http://www.instructables.com/id/Home-Automation-How-to-Add-Relays-to-Arduino/step6/Modifications-for-Driving-a-5V-relay-module-from-a/ My relay board: Relay Board http://wiki.iteadstudio.com/4_Channels_5V_Relay_Module Thanks, -- 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 beagleboard...@googlegroups.com javascript: . For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. _ No virus found in this message. Checked by AVG - www.avg.com Version: 2015.0.5646 / Virus Database: 4284/9094 - Release Date: 02/11/15 -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
Re: [beagleboard] Control 5V relay with my BeagleBone Black GPIO
Hi bill, Thanks for your help, so i just have to replace the resistors by new ones, for Leds what is your idea to connect them to relay coil? segunda-feira, 9 de Fevereiro de 2015 às 20:57:06 UTC, William Pretty Security escreveu: Hi; I took a look at both circuits. There’s uses an opto-isolator, so shorting the LED should work. In your case, the 1K resistor on the base will load the GPIO too much. I used a 10K base resistor with a 100K pull down. Basically multiply both of your values by 10 and you8 should be fine. I would hook the LED in parallel with the relay coil. Good Luck Bill *From:* beagl...@googlegroups.com javascript: [mailto: beagl...@googlegroups.com javascript:] *On Behalf Of *cmc...@gmail.com javascript: *Sent:* Monday, February 09, 2015 8:57 AM *To:* beagl...@googlegroups.com javascript: *Subject:* [beagleboard] Control 5V relay with my BeagleBone Black GPIO Hi, I have a 5V Relay shield to control with my BBB, i know the GPIO work with 3.3V, i see an instructable that i can shunt the leds in my relay shield and it will work, it is safe for my bbb to do that? Modifications for Driving a 5V relay module from a 3.3V Arduino board http://www.instructables.com/id/Home-Automation-How-to-Add-Relays-to-Arduino/step6/Modifications-for-Driving-a-5V-relay-module-from-a/ My relay board: Relay Board http://wiki.iteadstudio.com/4_Channels_5V_Relay_Module Thanks, -- 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 beagleboard...@googlegroups.com javascript:. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
[beagleboard] Control 5V relay with my BeagleBone Black GPIO
Hi, I have a 5V Relay shield to control with my BBB, i know the GPIO work with 3.3V, i see an instructable that i can shunt the leds in my relay shield and it will work, it is safe for my bbb to do that? Modifications for Driving a 5V relay module from a 3.3V Arduino board http://www.instructables.com/id/Home-Automation-How-to-Add-Relays-to-Arduino/step6/Modifications-for-Driving-a-5V-relay-module-from-a/ My relay board: Relay Board http://wiki.iteadstudio.com/4_Channels_5V_Relay_Module Thanks, -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
RE: [beagleboard] Control 5V relay with my BeagleBone Black GPIO
Hi; I took a look at both circuits. There’s uses an opto-isolator, so shorting the LED should work. In your case, the 1K resistor on the base will load the GPIO too much. I used a 10K base resistor with a 100K pull down. Basically multiply both of your values by 10 and you8 should be fine. I would hook the LED in parallel with the relay coil. Good Luck Bill From: beagleboard@googlegroups.com [mailto:beagleboard@googlegroups.com] On Behalf Of cmct...@gmail.com Sent: Monday, February 09, 2015 8:57 AM To: beagleboard@googlegroups.com Subject: [beagleboard] Control 5V relay with my BeagleBone Black GPIO Hi, I have a 5V Relay shield to control with my BBB, i know the GPIO work with 3.3V, i see an instructable that i can shunt the leds in my relay shield and it will work, it is safe for my bbb to do that? Modifications for Driving a 5V relay module from a 3.3V Arduino board http://www.instructables.com/id/Home-Automation-How-to-Add-Relays-to-Arduino/step6/Modifications-for-Driving-a-5V-relay-module-from-a/ My relay board: Relay Board http://wiki.iteadstudio.com/4_Channels_5V_Relay_Module Thanks, -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout. -- 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 beagleboard+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.
