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rikunmishra1998
- Posts: 2
- Joined: Fri Jun 16, 2017 5:10 am
Relay Module
I have a Raspberry Pi 3 and a 5 V 10 Amp relay Module. I need to connect it to a submersible aquarium pump which runs on AC power. The relay can be powered using the 5V GPIO pin of the Pi or do I need a 5V DC adaptor?
Re: Relay Module
Can you provide details, or a link, for the relay module ?
Are you hoping to switch the '5v GPIO' or just getting 5v from the Pi ?
Are you hoping to switch the '5v GPIO' or just getting 5v from the Pi ?
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rikunmishra1998
- Posts: 2
- Joined: Fri Jun 16, 2017 5:10 am
Re: Relay Module
http://www.amazon.in/Channel-Module-Opt ... 3e1bf72c76
I bought it from the above link.
No, I wanted to know whether the 5 V GPIO pin will provide power to my relay so that I can use it to connect with high voltage devices.
I bought it from the above link.
No, I wanted to know whether the 5 V GPIO pin will provide power to my relay so that I can use it to connect with high voltage devices.
Re: Relay Module
Hi.
My personal preference is to always not to power the relay board from the GPIO 5v pin.
The reason being if you switch several relays at once you could cause a sudden drop in the voltage on the 5v rail which cause cause your Pi to reboot, or SD card to be corrupted, this is more likely if you have other things connected on the GPIO or have things connected to usb ports which are also drawing power from the Pi.
If you were to operate all the relays on your board you could potentially be drawing 500 - 600mA from the 5V Pin. so if you were to attempt it you would need to be using a good quality 2.5A psu.
My personal preference is to always not to power the relay board from the GPIO 5v pin.
The reason being if you switch several relays at once you could cause a sudden drop in the voltage on the 5v rail which cause cause your Pi to reboot, or SD card to be corrupted, this is more likely if you have other things connected on the GPIO or have things connected to usb ports which are also drawing power from the Pi.
If you were to operate all the relays on your board you could potentially be drawing 500 - 600mA from the 5V Pin. so if you were to attempt it you would need to be using a good quality 2.5A psu.
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The use of crystal balls & mind reading are not supported
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