Tagged Questions

0
votes
2answers
1k views

GPIO remote switching PC on/off

I saw a post on raspberry official forum. It's about GPIO remote switching PC on/off, but it is not very detailed. I am pretty interested in it and i have this relay. I am wondering if anyone here has ...
6
votes
4answers
1k views

Shutdown Controller for Raspberry Pi in a car

Following on from my previous question I'm trying to create a shutdown controller for my Raspberry Pi. The Raspberry Pi needs to be powered from the battery, but should power-down after the Pi ...
3
votes
2answers
965 views

Building a relay circuit for the Raspberry Pi

To start I have only a cursory knowledge of electronics... I "know" what all the basic components do, but I have not figured out how to use that knowledge to design anything (much less evaluate ...
3
votes
2answers
208 views

How can i drive a 5v 120VAC 80mA with 15A contacts with a raspberry pi?

I don't have a very good knowledge of electrical engineering yet but I'm working on it. I will like to know as simple as possible, how can i drive a latching relay that needs about 70-90mA if the ...
1
vote
1answer
477 views

GPIO and relay quesiton

I have a question about the YouTube video Raspberry Pi Controls Relay. It's about controlling a SainSmart 4-Channel 5V Relay Module. Is it driven directly off the 3.3V GPIO?
1
vote
2answers
1k views

Driving a single-relay board with Raspberry Pi

I have one of these single-relay boards and I am trying to control it with my RasPi's GPIO. (I'm a complete noob). I am using WiringPi and in this particular case I'm using pin 1 (aka BCM pin 18) as ...