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by alphanumeric
Thu Sep 19, 2019 7:45 pm
Forum: HATs and other add-ons
Topic: 3B+ & Hifiberry & Display & DVB-T
Replies: 1
Views: 222

Re: 3B+ & Hifiberry & Display & DVB-T

First step is to figure out what pins are used by each Hat. Then figure out if you have conflicts. i2c can be shared, but just about everything else can't.
by alphanumeric
Thu Sep 19, 2019 7:19 pm
Forum: Troubleshooting
Topic: Pi rejects to reboot and always needs 3-30s cooldown
Replies: 6
Views: 277

Re: Pi rejects to reboot and always needs 3-30s cooldown

I've updated my eeprom, sudo reboot and selecting reboot from the shutdown menu works for me. Just a FYI post EDIT: If I shut down, and unplug my power supply, I have to wait for the Pi's Power LED to fade to black, before plugging it back in. If I don't it won't boot up. It does take a couple of se...
by alphanumeric
Thu Sep 19, 2019 11:32 am
Forum: Troubleshooting
Topic: Pi rejects to reboot and always needs 3-30s cooldown
Replies: 6
Views: 277

Re: Pi rejects to reboot and always needs 3-30s cooldown

Reboot from the shut down menu? I'm not 100% sure what you mean by soft and hard reboot. With the factory shipped firmware, grounding GPIO 3 will not make a Pi 4 boot up after doing a shut down from Raspbian. You have to power cycle it. With the updated eeprom boot firmware that functionality will w...
by alphanumeric
Tue Sep 17, 2019 7:11 pm
Forum: HATs and other add-ons
Topic: Raspberry Pi 4B, tvhat & fan shim?
Replies: 11
Views: 1025

Re: Raspberry Pi 4B, tvhat & fan shim?

I stopped and then disabled the service that does the fan control etc of my Fan Shim. The fan just runs continuous now as long as the Pi is powered. My temp hovers right around 40c with the Pi under moderate use. About 35c if its just sitting idle. I'm happy with this setup. The LED now stays off. T...
by alphanumeric
Tue Sep 17, 2019 1:24 pm
Forum: Troubleshooting
Topic: Pi Zero W - Powered over USB data port
Replies: 4
Views: 142

Re: Pi Zero W - Powered over USB data port

What do you have connected to the HUB? If it isn't anything that requires lots of current just unplug the power supply feeding the HUB. Power "should" then come from the Pi Zero. This is what I use with my Pi Zero's, https://shop.pimoroni.com/products/three-port-usb-hub-with-ethernet-and-microb-conn...
by alphanumeric
Tue Sep 17, 2019 1:07 pm
Forum: Troubleshooting
Topic: Pi Zero W - Powered over USB data port
Replies: 4
Views: 142

Re: Pi Zero W - Powered over USB data port

The Pi can be back powered via the DATA port. Thats so you can use it in USB gadget mode. Power coming back from the USB HUB is IMHO not desirable. Not in this instance anyway. I'd either just power the Pi via the HUB, or get a HUB that doesn't back power the Pi. The two power supplies are going to ...
by alphanumeric
Tue Sep 17, 2019 12:58 pm
Forum: Beginners
Topic: Computer monitor & Raspberry Pi 4B
Replies: 5
Views: 251

Re: Computer monitor & Raspberry Pi 4B

Lots of ways to do it. I have a HDMI to DVI adapter on my monitor. I went this way as it lets me swap around the official cables. I usually have my PI 4 B connected, but sometimes hook up a Pi Zero etc. I just swap the Micro HDMI for the Mini HDMI, a normal HDMI if its a 3A or 3B. The HDMI to DVI ad...
by alphanumeric
Sat Sep 14, 2019 7:33 pm
Forum: Beginners
Topic: RPi 4: Booting by shorting GND and GPIO3 (pins 5 and 6) not working
Replies: 6
Views: 614

Re: RPi 4: Booting by shorting GND and GPIO3 (pins 5 and 6) not working

With the new boot loader I can now boot up and shut down with the button on my Fan Shim. Down side is the fan keeps running after the Pi shuts down. I have to unplug the power supply to male it stop. :( With the original boot loader, on shut down the +5V is turned off and the fan stops. Down side is...
by alphanumeric
Sat Sep 14, 2019 8:46 am
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 564
Views: 181089

Re: Raspberry Pi 4 temperature

I switched tactics. I stopped, and then disabled the service that controls the fan. Now it just runs continuously when the Pi is on. My temps are now around ~40c with moderate use. Half what I was getting with just the heat sink. And more constant with no swings up and down. :D But only a 3% change...
by alphanumeric
Fri Sep 13, 2019 11:43 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 564
Views: 181089

Re: Raspberry Pi 4 temperature

I switched tactics. I stopped, and then disabled the service that controls the fan. Now it just runs continuously when the Pi is on. My temps are now around ~40c with moderate use. Half what I was getting with just the heat sink. And more constant with no swings up and down. :D
by alphanumeric
Fri Sep 13, 2019 8:31 pm
Forum: HATs and other add-ons
Topic: Raspberry Pi 4B, tvhat & fan shim?
Replies: 11
Views: 1025

Re: Raspberry Pi 4B, tvhat & fan shim?

Installed my Fan Shim today. Mounted it on a booster header. Only had to make one small modification to its holder to lower it a little. Cut some plastic away so I could skip using the nuts as spacers. With the stock software install the fan turns on at 65c and back off again at 55c. Takes about 20 ...
by alphanumeric
Fri Sep 13, 2019 8:24 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 temperature
Replies: 564
Views: 181089

Re: Raspberry Pi 4 temperature

I have a Pi 4B, 4 gig version in a Pimoroni Pibow Coupe case with the Pimoroni Heatsink made for that case. It would hit 80c with moderate use. Viewing one of my camera feeds in a browser window would do it. It took a while about 30 minutes. I just today installed the Pimoroni Fan Shim. Its on a Boo...
by alphanumeric
Fri Sep 13, 2019 12:14 pm
Forum: Beginners
Topic: What is purpose of powering a breadboard's power rail but not used
Replies: 6
Views: 311

Re: What is purpose of powering a breadboard's power rail but not used

Also, be aware that on some solderless bread boards the power rails are separated into two sections. There is a break right in the middle that separates them into two groups of 25 pins. If I was to wire that circuit up as shown on my breadboard, it wouldn't work because the ground for the LED wouldn...
by alphanumeric
Fri Sep 13, 2019 12:11 pm
Forum: Beginners
Topic: What is purpose of powering a breadboard's power rail but not used
Replies: 6
Views: 311

Re: What is purpose of powering a breadboard's power rail but not used

If its not used you don't need to wire it. For some its just common practice / habit to wire it up. In case you add more components latter on, or wire up a different project etc. Some may have a dedicated testing setup so its advantageous to just leave it hooked up all the time.
by alphanumeric
Fri Sep 13, 2019 10:23 am
Forum: General discussion
Topic: The Power Circuit in Pi Zero vs Pi Zero W
Replies: 23
Views: 823

Re: The Power Circuit in Pi Zero vs Pi Zero W

I only ever solder a header there if I'm going to use the RUN pin. For most people, yes, just leave it as is. Only populate it if your actually going to use it.
by alphanumeric
Fri Sep 13, 2019 9:40 am
Forum: General discussion
Topic: The Power Circuit in Pi Zero vs Pi Zero W
Replies: 23
Views: 823

Re: The Power Circuit in Pi Zero vs Pi Zero W

If the Pi was shut down and left powered up, momentarily grounding the Run pin will boot it up. You don't want to do that while its running though as it will like pushing the reset button on a PC. It will reboot on the spot without shutting down properly first. RUN is actually the SOC Reset pin. It ...
by alphanumeric
Thu Sep 12, 2019 4:08 pm
Forum: Astro Pi
Topic: Physical dimensions don't match on Sense HAT and Pi4
Replies: 2
Views: 1148

Re: Physical dimensions don't match on Sense HAT and Pi4

Forgot to mention, I have a Pi A+ with a Sense Hat attached. No case, but I do have a black difusser mounted in front of the sense hat. I use it to soften the LED matrix display. I have no problem reading my scrolling message through the black difusser. I drilled holes in the difusser and used screw...
by alphanumeric
Thu Sep 12, 2019 4:00 pm
Forum: Astro Pi
Topic: Physical dimensions don't match on Sense HAT and Pi4
Replies: 2
Views: 1148

Re: Physical dimensions don't match on Sense HAT and Pi4

I have the Pimoroni Pibow Coupe case on my Pi 4B. https://shop.pimoroni.com/products/pibow-coupe-4?variant=29210100105299 This case is made to accommodate the Fan Shim. I currently only have a heatsink mounted. My fan Shim should arrive any day now. I have used these black difussers on several of my...
by alphanumeric
Thu Sep 12, 2019 2:32 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

The Pi 4B might actually be powerful enough to run Windows 10 on Arm and not be a PITA to use. I don't see Microsoft being in any big hurry to officially port Windows 10 on Arm to it though. I inquired on the Microsoft Private Yammer group but never got any official replies from any body with Micros...
by alphanumeric
Thu Sep 12, 2019 1:35 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

As a Microsoft MVP, I tried 10s. Way to restrictive for my liking. I do believe its a free upgrade to Pro though, if you want. It was at one time. I've given Windows 10 IoT a few test runs on a Raspberry Pi.. I just don't have the Visual studio skills to do anything productive with it. There isn't a...
by alphanumeric
Thu Sep 12, 2019 1:30 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

I could be wrong, but I do believe Windows 10 on Arm was only officially available to OEM's, via private channels. To be installed on supported devices etc. And they likely pay licensing fees to Microsoft. That may have been the original source of what people are trying to use on the Raspberry Pi. O...
by alphanumeric
Thu Sep 12, 2019 12:32 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

Windows on Arm, on a Raspberry Pi, was a work in progress last time I had a look for it. And it was not anything even remotely official or anything sanctioned by Microsoft. I could at one time legally download Windows 10 on Arm via my My Visual Studio Enterprise subscription. You had to go hunting f...
by alphanumeric
Thu Sep 12, 2019 12:00 pm
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

Windows 10 IoT Core is not yet supported on the RPi 4B, hence my original statement ! This will sound like nit picking but thats not exactly what you said, "There are various Windows 10 Editions and none are Officially Supported by Microsoft on the Raspberry Pi SBC ." Windows 10 Iot is supported on...
by alphanumeric
Thu Sep 12, 2019 11:48 am
Forum: Off topic discussion
Topic: How to Install Microsoft windows 10 operating systems ?
Replies: 26
Views: 3226

Re: How to Install Microsoft windows 10 operating systems ?

Windows IoT will run on a raspberry Pi, and is officialy supported by Microsoft. I'm not sure if the Pi 4B is suported yet though, all I found is a link for a Pi 2 or 3. Just be advised, this is not the Windows 10 you might think it is. Its a very watered down version that bears little to no resemp...
by alphanumeric
Thu Sep 12, 2019 11:40 am
Forum: HATs and other add-ons
Topic: Powering both the pi and a 7 Inches screen with a battery pack
Replies: 1
Views: 193

Re: Powering both the pi and a 7 Inches screen with a battery pack

I have that battery and a Powerboost 1000 c powering a Pi A+, Sense Hat, and a few other odds and ends. I'm likely very close to the 1A out limit of the Powerboost 1000c. I'd be very surprised if you could power a Pi 3 or 4 and the 7 inch display. Even something like this https://www.dfrobot.com/pro...

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