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by drgeoff
Sat Mar 02, 2024 8:08 pm
Forum: Beginners
Topic: Best way to make a Zigbee gateway on a RPI 5?
Replies: 7
Views: 94

Re: Best way to make a Zigbee gateway on a RPI 5?

FriedPrinter wrote:
Sat Mar 02, 2024 6:24 pm
Hi !

As the title say, I'm currently looking at the best way to make a Zigbee gateway on a RPI 5.
Why? Do you realise that a ready to go Zigbee gateway on Aliexpress costs less than just the PSU needed for a Pi5.
by drgeoff
Sat Mar 02, 2024 5:11 pm
Forum: Troubleshooting
Topic: Raspberry Pi 5 - 8gb Unable to read partition as FAT
Replies: 8
Views: 163

Re: Raspberry Pi 5 - 8gb Unable to read partition as FAT

Put the card reader with card flashed with OS into a USB socket on your PC. Can Windows detect an added drive and show files on it?
by drgeoff
Sat Mar 02, 2024 3:27 pm
Forum: Troubleshooting
Topic: Raspberry Pi 5 - 8gb Unable to read partition as FAT
Replies: 8
Views: 163

Re: Raspberry Pi 5 - 8gb Unable to read partition as FAT

Remove power. Remove card from socket on Pi5. Put card with OS into your USB card reader. Plug card reader into a USB socket on Pi5. Apply power. Does that boot?
by drgeoff
Sat Mar 02, 2024 1:44 pm
Forum: Troubleshooting
Topic: How do I hook up my speakers?
Replies: 13
Views: 264

Re: How do I hook up my speakers?

i saw those https://a.co/d/9ZxrKmr 6 pic down this might also help https://randomnerdtutorials.com/raspberry-pi-pinout-gpios/ Well then I have a problem. My monitor uses those same pins to "convert the power from the Raspberry Pi to the monitor." how about the 3.3 and the 2 grounds on the...
by drgeoff
Sat Mar 02, 2024 1:08 pm
Forum: Troubleshooting
Topic: How do I hook up my speakers?
Replies: 13
Views: 264

Re: How do I hook up my speakers?

Those appear to be a "raw" speaker in a box. No amplifier. None of the reviews mention Bluetooth. At least one review mentions using them with an amplifier. The blurb includes: "Rated impedance: 4 ohms 8 ohms (Ω);" which is exactly what one would expect a speaker coil to be, not ...
by drgeoff
Sat Mar 02, 2024 9:07 am
Forum: Troubleshooting
Topic: How do I hook up my speakers?
Replies: 13
Views: 264

Re: How do I hook up my speakers?

Hello! This is my first post. I'm trying to hook up 2 speakers, 8Ω 3W to my Raspberry Pi 4 Model B with those pins on the back. I'm having a lot of trouble finding it online, so I have come to here to ask. Please help! ;) No model of RPi has enough audio output power to drive speakers. You need an ...
by drgeoff
Sat Mar 02, 2024 8:53 am
Forum: Graphics, sound and multimedia
Topic: Analog video was improved for RPi5 !!!! THANK YOU
Replies: 7
Views: 439

Re: Analog video was improved for RPi5 !!!! THANK YOU

Oh it is the perfect level of sharpness now! :D I can see why someone would think that the previous Raspberry Pis were sharper, but it was the equivalent of taking an image editor and applying too much sharpness to a photo to the point you see artifacts everywhere. All my CRTs look better with the ...
by drgeoff
Wed Feb 28, 2024 6:19 pm
Forum: Automation, sensing and robotics
Topic: Psu recommendations
Replies: 3
Views: 86

Re: Psu recommendations

I'm using the relay to power a lot of relays, solenoids, and motors with a Pi4. Naturally, a separate power supply will provide the necessary power for those instead of the Pi4. All operations will be conducted at 12 volts, with a maximum of 10 amps per channel. So what 120v to 12v power supply wou...
by drgeoff
Wed Feb 28, 2024 12:53 pm
Forum: Networking and servers
Topic: Connecting to Hotspot on Phone
Replies: 11
Views: 226

Re: Connecting to Hotspot on Phone

1. Have you read and understood the Sticky in this section of the forum? 2. Connecting to a hotspot on a phone is no different than connecting to any other Wi-Fi Access Point such as on a Wi-Fi router. The documentation section of this web site has details of how to do that. Also the internet is awa...
by drgeoff
Wed Feb 28, 2024 9:01 am
Forum: General discussion
Topic: just got a pi5. Which 2 of the 4usb ports are 3.0??? thanks.
Replies: 7
Views: 618

Re: just got a pi5. Which 2 of the 4usb ports are 3.0??? thanks.

A careful look will reveal that a USB3 socket has more contacts than the four in a USB1 or USB2 socket.
by drgeoff
Mon Feb 26, 2024 8:12 pm
Forum: General discussion
Topic: Are all 3B+ the same?
Replies: 7
Views: 398

Re: Are all 3B+ the same?

Which led me to read many posts here related to firmware, with some ambiguity about what is meant by firmware. I see that rpi-update can update (or revert) "firmware", but I can't tell if that means it updates (or reverts) the SD card or if it writes to the hardware outside of the SD card...
by drgeoff
Sun Feb 25, 2024 7:54 pm
Forum: Raspberry Pi OS
Topic: Raspberry Pi updates
Replies: 20
Views: 1049

Re: Raspberry Pi updates

I ran the sudo apt update on my RPI 2b that I loaded using Raspberry Pi Imager v1.1.8.1. It then said "39 packages can be upgraded. Run 'apt list --upgradable' to see them." I did that and saw a long list. However, I don't know how to actually do the upgrades. Read the first reply more ca...
by drgeoff
Sat Feb 24, 2024 1:10 am
Forum: For sale
Topic: CM4 CM4001008 50 pcs for sale
Replies: 4
Views: 269

Re: CM4 CM4001008 50 pcs for sale

You'll be waiting a long time for anyone to contact you. You have not provided a means for anyone to do so.
by drgeoff
Fri Feb 23, 2024 1:03 pm
Forum: Troubleshooting
Topic: Raspberry Pi 4 does not boot, both LEDs do not blink, no outputs
Replies: 6
Views: 154

Re: Raspberry Pi 4 does not boot, both LEDs do not blink, no outputs

And whats worrying is that pin 1 reads 4.8~4.9V. Are you measuring the correct pin? Pin 1 is on the inside row of 20 pins. The pin nearest the board corner is pin 2 and should be 5 Volts nominal. Remove power, remove everything from USB sockets and GPIO header. Remove microSD card. Have HDMI connec...
by drgeoff
Fri Feb 23, 2024 12:32 pm
Forum: Troubleshooting
Topic: RPi 5 solid state red light not booing from SD or new image
Replies: 3
Views: 110

Re: RPi 5 solid state red light not booing from SD or new image

It is unwise to plug anything on to GPIO pins while a RPi is powered up. However, pushing on a vacant 40 pin female connector should not cause any damage. Was it just a single connector or was it a cable with connectors at each end? If the latter, does the cable have 40 wires or 80 wires? Cables wit...
by drgeoff
Thu Feb 22, 2024 12:32 pm
Forum: Troubleshooting
Topic: Raspberry Pi Imager does not launch
Replies: 4
Views: 127

Re: Raspberry Pi Imager does not launch

Hello, I try to run Raspberry Pi Imager 185.dmg on Mac and get the error. Image is not recognized. In Terminal I tried to run: MacBook-JK:~ Jacek$ sudo apt install rpi-imager Password: The operation couldn’t be completed. Unable to locate a Java Runtime that supports apt. Please visit http://www.ja...
by drgeoff
Thu Feb 22, 2024 12:27 pm
Forum: Troubleshooting
Topic: Raspberry Pi Imager does not launch
Replies: 4
Views: 127

Re: Raspberry Pi Imager does not launch

I don’t think that is the way to install it on a Mac (but I don’t have one) The instructions say To install on Raspberry Pi OS , type sudo apt install rpi-imager in a Terminal window. But you don’t have Raspberry Pi OS on your Mac, you have some version of macOS ? @neilgl If you look at https://www...
by drgeoff
Wed Feb 21, 2024 2:55 pm
Forum: Troubleshooting
Topic: RPI 4b not booting from SD Card.
Replies: 14
Views: 346

Re: RPI 4b not booting from SD Card.

are you using an adapter? some adapters do not pass EDID Data back from the monitor to the PI. without this data, the pi does not know what resolutions are supported, so it sets none (no HDMI output) I am under the impression that even without any EDID a 4B booted without storage medium inserted wi...
by drgeoff
Wed Feb 21, 2024 1:57 pm
Forum: Troubleshooting
Topic: RPI 4b not booting from SD Card.
Replies: 14
Views: 346

Re: RPI 4b not booting from SD Card.

Have you done as requested earlier.

check your HDMI cabling and EDID status:
power off your PI
remove the SD card
power on the pi.
- you should get the diagnostic display as shown below. Pay attention to the EDID data status (the last line "display"... below says EDID=OK)
by drgeoff
Wed Feb 21, 2024 12:31 pm
Forum: Troubleshooting
Topic: Verifying write failed.
Replies: 5
Views: 194

Re: Verifying write failed.

Maybe faulty or fake card. Download h2testw (for Windows) and use it to test the card. Good point - I assume people buy from reputable dealers (or they have decent supply chains) too much :oops: Giving the OP is using a Mac or Linux box then F3 (https://fight-flash-fraud.readthedocs.io/en/latest/) ...
by drgeoff
Wed Feb 21, 2024 11:58 am
Forum: Troubleshooting
Topic: Verifying write failed.
Replies: 5
Views: 194

Re: Verifying write failed.

Maybe faulty or fake card. Download h2testw (for Windows) and use it to test the card.
by drgeoff
Wed Feb 21, 2024 11:27 am
Forum: Troubleshooting
Topic: RPI 4b not booting from SD Card.
Replies: 14
Views: 346

Re: RPI 4b not booting from SD Card.

In the other thread you started you wrote that the red LED is flashing. That is not what you stated in the first post here. Flashing red LED usually means power supply trouble. Are you using official PSU?
by drgeoff
Tue Feb 20, 2024 5:35 pm
Forum: Networking and servers
Topic: How to setup static IP address on Raspberry Pi OS 64bit bookworm
Replies: 15
Views: 467

Re: How to setup static IP address on Raspberry Pi OS 64bit bookworm

You may just create a file /etc/network/interfaces.d/eth0 containing something like: allow-hotplug eth0 iface eth0 inet static address 192.168.0.NNN/24 #network 10.0.0.0 netmask 255.255.255.0 gateway 192.168.0.1 Particularly useful if you need to do this in advance (before the first boot) for a hea...

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