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by jesxs
Mon Jul 06, 2020 4:52 pm
Forum: Beginners
Topic: How to toggle on/off a usb device on rpi 3b+
Replies: 7
Views: 159

Re: How to toggle on/off a usb device on rpi 3b+

How will you hook a fan to GPIO? Will you use some sort of transistor? That was what I was planning, but maybe I can use 4 of those raspberry small 5V fans and that will be enough. If you connect even the smallest fan to a GPIO pin, the Pi will cease to work. It is possible to connect fans to the 5...
by jesxs
Mon Jul 06, 2020 4:43 pm
Forum: Beginners
Topic: How to toggle on/off a usb device on rpi 3b+
Replies: 7
Views: 159

Re: How to toggle on/off a usb device on rpi 3b+

The Pi can only toggle power to all 4 ports together. You can't control individual ports so any other USB device plugged in will also be turned off. If that is okay then you can use uhubctl. Well I plan on hooking up some fans to allow for airflow inside the chamber, but I guess I can do that with ...
by jesxs
Mon Jul 06, 2020 4:31 pm
Forum: Beginners
Topic: How to toggle on/off a usb device on rpi 3b+
Replies: 7
Views: 159

Re: How to toggle on/off a usb device on rpi 3b+

The Pi can only toggle power to all 4 ports together. You can't control individual ports so any other USB device plugged in will also be turned off. If that is okay then you can use uhubctl. Well I plan on hooking up some fans to allow for airflow inside the chamber, but I guess I can do that with ...
by jesxs
Mon Jul 06, 2020 4:17 pm
Forum: Beginners
Topic: How to toggle on/off a usb device on rpi 3b+
Replies: 7
Views: 159

How to toggle on/off a usb device on rpi 3b+

I want to make an irrigation system (more like a mist-sprayer) for a little terrarium I have, and I'm planning everything I'll need. So I've found a little usb water pump. As this would be automated with a humidity sensor, I need to be able to turn on/off the water pump. I've seen online that usb po...
by jesxs
Mon Jul 06, 2020 10:19 am
Forum: Beginners
Topic: Mist irrigation system
Replies: 1
Views: 154

Mist irrigation system

So I want to make a mist irrigation system which will keep the humidity in a little terrarium. I've searched online but I can't find anything about mist, there are lots of tuts about normal irrigation systems. So what I'd like to know if the mist is produced by another component or if it is like a s...
by jesxs
Wed Jun 10, 2020 10:37 pm
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Re: Best way to power a raspberry pi 3b+

davidcoton wrote:
Wed Jun 10, 2020 10:34 pm
The maximum total current output of the USB sockets of a Pi3B+ is 1A2. The maximum current required with that USB load is 2A5.
Ahh I didn't got it. I feel stupid, sorry again if these questions are really dumb.
Thank you :D
by jesxs
Wed Jun 10, 2020 10:13 pm
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Re: Best way to power a raspberry pi 3b+

Thank you everyone for your responses. For what I've read, the safest thing is to power it via usb, and about 5A (with the usb dongles I mentioned) I think would be enough. Correct me if I'm wrong. I've looked into these https://www.amazon.es/dp/B00ISTGQSU/ref=cm_sw_r_cp_apa_i_2Ov4EbYQ0M1M9 Plus an ...
by jesxs
Wed Jun 10, 2020 9:27 am
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Re: Best way to power a raspberry pi 3b+

that battery bank looks very suspect indeed, problem with most affordable USB powerbanks are only built to handle normal USB use which is nearly always under 2A. If your peak current surge won't be over 2A I think you can easily get away with a good quality 2A rated powerbank. For one of my battery...
by jesxs
Wed Jun 10, 2020 8:27 am
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Re: Best way to power a raspberry pi 3b+

that battery bank looks very suspect indeed, problem with most affordable USB powerbanks are only built to handle normal USB use which is nearly always under 2A. If your peak current surge won't be over 2A I think you can easily get away with a good quality 2A rated powerbank. For one of my battery...
by jesxs
Tue Jun 09, 2020 2:26 pm
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Re: Best way to power a raspberry pi 3b+

Your power back says 1A output and 2A input. It might not be able to give the power you need. Do you have a picture of where it says 2A out? https://imgur.com/hm0XjkO Its not a really high quality battery or anything so I wouldn't really trust that, but anyway, it would be nice if I could use what ...
by jesxs
Tue Jun 09, 2020 2:11 pm
Forum: Beginners
Topic: Best way to power a raspberry pi 3b+
Replies: 13
Views: 631

Best way to power a raspberry pi 3b+

So I'm making a little wardriving device with a raspberry pi 3b+. I will be carrying an Alpha network antenna and a gps receiver, as well as a 3.5" screen. I have a 12000mAh external battery; https://imgur.com/WFl9yy5 I connected the raspberry to the usb which says '2A OUT' on the battery, but ...
by jesxs
Tue Jun 09, 2020 8:11 am
Forum: Other
Topic: GPS receiver wrong location gpsd [KALI]
Replies: 4
Views: 576

Re: GPS receiver wrong location gpsd

Is the GPS outdoors with a clear view of the majority of the sky? Mostly. Is outside of my window, and I live in a rural area so there are no tall buildings nearby. Today it picks up the same location as yesterday, in the middle of the ocean. Is there something that I need to configure or something...
by jesxs
Mon Jun 08, 2020 10:58 pm
Forum: Other
Topic: GPS receiver wrong location gpsd [KALI]
Replies: 4
Views: 576

GPS receiver wrong location gpsd [KALI]

I'm on a raspberry 3 b+ running latest version of kali linux. I got this gps receiver; https://www.google.com/url?sa=t&source=web&rct=j&url=https://www.amazon.es/GlobalSat-BU-353-S4-Receptor-SiRF-Star/dp/B008200LHW&ved=2ahUKEwj2l7-0p_PpAhWN2hQKHV43AIgQFjAAegQIAxAB&usg=AOvVaw2Nt5f...
by jesxs
Sat May 18, 2019 12:25 pm
Forum: Beginners
Topic: How to connect to my pi on-the-go?
Replies: 3
Views: 437

How to connect to my pi on-the-go?

Well, I don't really know if this is possible but I wanted to see what you guys think. A few days ago I got my first raspberry pi 3 b+. I'm an IT student so I thought about making a "sniffing" device. My thinking is like this: -->Carry the raspberry around, when I find open wifi or somethi...

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