Linked Questions

0
votes
0answers
30 views

Voltage troubles with Pins (Relais stays on) [duplicate]

I am having troubles setting a simple Relais to On and Off. My code is quite simple: GPIO.setup(RELAIS_PIN, GPIO.OUT) GPIO.output(RELAIS_PIN, GPIO.HIGH) time.sleep(2) GPIO.output(RELAIS_PIN, GPIO.LOW)...
1
vote
2answers
577 views

Relay status led's are blinking but the relay coil is not activating

Devices I am using are: 1) Songle 2 channel relay module - https://www.electronicscomp.com/2-channel-5v-relay-module-with-optocoupler?gclid=...
4
votes
4answers
79 views

gpio turning on/off relay, seems backwards

I have a Raspberry Pi 3b and wired to a 4 port relay I got from Amazon: https://www.amazon.com/JBtek-Channel-Module-Arduino-Raspberry/dp/B00KTEN3TM/ Everything is working, but it seems backwards to ...
3
votes
2answers
71 views

Should I tear apart USB PSU or get a dedicated switching PSU?

I'm going to be using an Pi-3B+ to switch an AC and a DC device using one of the popular relay modules. This whole project is going to go in a custom screw-together project box that will have AC input ...
1
vote
2answers
141 views

Raspberry Pi power on - enable relay

There are loads of Youtube videos on how to control a relay, but I simply want to be able to power up my Pi and let it activate a relay. Then, when I power it down, it should turn the relay off. No ...
1
vote
2answers
52 views

Relay modules: Can I switch AC in one and DC in another?

I would like to control both 120VAC and 24VDC from my RPi 3B+. To make this easy, I'm looking at one of the various 3ch or 4ch relay modules for an RPi 3B+, like this or this. I'm familiar with using ...
0
votes
1answer
67 views

I think I fried my Raspberry Pi, but I'm not sure

I was making connections from my Raspberry Pi to a relay module. While I was running some sample code, I noticed that after I had terminated the program I was still getting a high CPU usage (around 60%...
0
votes
1answer
38 views

How to connect Relay module to Raspberry Pi

I have a relay module exactly like the one on the next page : https://microcontrollershop.com/product_info.php?products_id=5919 I wanted to consult you about the correct way to use it. I connected ...
1
vote
0answers
41 views

External power supply to a relay controlled by a Raspberry Pi

I am a beginner to relays and Raspberry Pi so please pardon me if my question sounds naive. I am trying to control 4 DC motors using relays and raspberry pi. I have decided to use an external supply ...
0
votes
0answers
18 views

Powering solenoid from batterypack

Im trying to power my 6V solenoid that is connected to my 8 channel 5V relay using my 8 x AA batterypack. The pi is being powered through an adapter and the relay from the VCC to 5V pi. When the LED ...