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by barrychapman
Wed Oct 02, 2019 2:43 am
Forum: Advanced users
Topic: Power demands
Replies: 7
Views: 488

Re: Power demands

It should work as long as the ravpower device has one regulator between two ports. If it has one regulator per port then there may be conflicts between the two supplies while they "fight" each other if the voltages are slightly different Sorry just saw this post for some reason. This is exactly my ...
by barrychapman
Wed Oct 02, 2019 2:40 am
Forum: Advanced users
Topic: Power demands
Replies: 7
Views: 488

Re: Power demands

Why do you think you do not want a Y-Cable? The standard use of a Y-Cable is to take the power from 2 USB ports into a single device that requires more power than a single USB3 port can provide. In the past this was often used for 2.5” hard drives although modern ones are less power hungry and thus...
by barrychapman
Wed Oct 02, 2019 2:39 am
Forum: Advanced users
Topic: Power demands
Replies: 7
Views: 488

Re: Power demands

Even the most power hungry Raspberry Pi setup should use less than 20 Watts. So if the RavPower USB power supply gives 20W per port you should only need one port. (Pi4 power adapter is 15.3W https://www.raspberrypi.org/products/type-c-power-supply/). What length and gauge of wire are you using for ...
by barrychapman
Mon Sep 30, 2019 5:34 pm
Forum: Advanced users
Topic: Power demands
Replies: 7
Views: 488

Power demands

I have a power-hungry pi device, and while most of the time it is okay, a surge in usage may result in insufficient power to the device causing it to reboot. I have a RavPower USB power supply that I use in the car, which boasts 40W total output between two ports. My question is - and I know questio...
by barrychapman
Sun Jun 30, 2019 3:42 am
Forum: General discussion
Topic: downloading raspbian: too slow
Replies: 33
Views: 8189

Re: downloading raspbian: too slow

i have gigabit internet, and can download a 5gb iso in less than 5 minutes.

However, the raspbian download times out repeatedly.
by barrychapman
Thu Nov 01, 2018 7:01 pm
Forum: HATs and other add-ons
Topic: Anyone familiar with the Waveshare GSM/Bluetooth Hat?
Replies: 29
Views: 17402

Re: Anyone familiar with the Waveshare GSM/Bluetooth Hat?

Hi, I am using the HAT for a project so would be happy to collaborate on any issues.I am UK-based. Please don't remove the pins until you are certain how you want to communicate with the HAT and can permanently connect the pins.They select how the usb connector is connected to the UART. This is mad...
by barrychapman
Mon Oct 29, 2018 3:33 pm
Forum: Other projects
Topic: Re-emerging Pi user working on a project for a POC at work
Replies: 2
Views: 1285

Re: Re-emerging Pi user working on a project for a POC at work

Does anyone know if one of these devices will work or is better than the other?
by barrychapman
Thu Oct 25, 2018 3:06 am
Forum: Other projects
Topic: Re-emerging Pi user working on a project for a POC at work
Replies: 2
Views: 1285

Re-emerging Pi user working on a project for a POC at work

Hi everyone! new here, but not really new to rpis. I fell out of using them for a while, and recently at work I was tasked with building a Proof of concept for a module for a new car line we are offering. I thought the best way to do this would be to use a rpi with a gsm hat. I am still waiting on s...

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