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kkyeap 12-07-2020 03:15 PM

Raspberry pi 4
 
Just setup a RP4B looks cool. Like to make this as PC replacement and some programming hobby. Any bro or sis here into Raspberry Pi project? Interested to know. Anyone use RP to install windows or Android OS?

SplitDiscount 12-07-2020 10:34 PM

I use it for side projects, check out retropie if you like old games

SplitDiscount 12-07-2020 10:35 PM

oh and I'm thinking of using it to stream some cloud gaming service to my tv on an android box, fun stuff

davidktw 13-07-2020 02:37 AM

Been using since RPI 1A.
Depending on your expectation, it may or may not be a desktop replacement :)

I mainly use it for VPN endpoints, DNS and DHCP server, surveillance camera display with an external HDMI display panel, surveillance camera via RPI camera, Google Home assistant, aircon remote controller via IR hat, telephone answering modem(for fun), Mumble server and client, DIY stuffs like driving motor, driving e-ink display, Retropie game console, and even something more specialised like a programmable headless bluetooth keyboard using RPI Zero W.

Basically tinkering stuffs. :)

If you are searching for a mini desktop replacement, maybe this might serve you better ?
https://www.indiegogo.com/projects/c...est-4k-mini-pc

ComicBook 20-07-2020 02:38 PM

5V3A Power Supply?
 
Hi everyone,

Just bought a RPi4 and failed to power up using an iPad 2.5A charger.

Can anyone recommend me a cheap and good power supply for my RPi4?

davidktw 20-07-2020 02:46 PM

Quote:

Originally Posted by ComicBook (Post 128591342)
Hi everyone,

Just bought a RPi4 and failed to power up using an iPad 2.5A charger.

Can anyone recommend me a cheap and good power supply for my RPi4?

This should be the problem you are facing :)
https://www.theverge.com/2019/7/10/2...ssory-charging

ComicBook 20-07-2020 02:58 PM

Hey David, thanks! But I have the V1.2 board..... so it's not the V1.1 buggy USB-C port issue....

I was thinking I could cheat a little with a good 2.5A charger, but it doesn't boot up at all! Blank screen!

Any other tips or suggestions?

davidktw 20-07-2020 04:28 PM

Quote:

Originally Posted by ComicBook (Post 128591742)
Hey David, thanks! But I have the V1.2 board..... so it's not the V1.1 buggy USB-C port issue....

I was thinking I could cheat a little with a good 2.5A charger, but it doesn't boot up at all! Blank screen!

Any other tips or suggestions?

How do you confirm your raspberry pi is not booting up ? Is the red led not lit up, and/or the green led not blinking ? The green led will blink when it is reading the MicroSD card.

Next is are you using the right HDMI output to determine if the boot up is showing ?

Also are you sure the MicroSD card is imaged properly with the OS (assuming Raspbian) to boot successfully ?

ComicBook 20-07-2020 04:57 PM

Red light is constant, green light blinking inconstantly, fan is running, indicating it is running. But screen remains blackout all the time.

I tried port 0 (and sometimes port 1) with two separate HDMI cables. Screen remains blackout all the time.

I also have two SD cards and tried loading them with NOOBS and NOOBS Lite. Screen remains blackout all the time.

davidktw 20-07-2020 05:01 PM

Quote:

Originally Posted by ComicBook (Post 128594004)
Red light is constant, green light blinking inconstantly, fan is running, indicating it is running. But screen remains blackout all the time.

I tried port 0 (and sometimes port 1) with two separate HDMI cables. Screen remains blackout all the time.

I also have two SD cards and tried loading them with NOOBS and NOOBS Lite. Screen remains blackout all the time.

The blinking lights do seems to indicate properly powered hardware. If the red light doesn't blink occasionally, then it should not be a boot loop situation.

Connect the raspberry pi to the network using ethernet, then type "ping raspberrypi", or "ping raspberrypi.local", repeat for a couple of times, see if there is any response.

Try download the latest Raspbian, from https://www.raspberrypi.org/downloads/raspberry-pi-os/, and image to your SD card. From your description, we can't be sure the SDcard OS image is working, unless you have any PI to test out.

It would be good to find out if the HDMI ports are having problem too with these tests. Idea is if it does boot up, it should at least reply with network ping.

ComicBook 20-07-2020 06:08 PM

Thank you David!!!

I followed your recommendation and have successfully pinged to my RPi4!
I am now updating and upgrading it headless and wireless. :s13:

So the pi is working, only the screen/mouse/keyboard might not be working for the pi... :s22:


Quote:

Originally Posted by davidktw (Post 128594069)
The blinking lights do seems to indicate properly powered hardware. If the red light doesn't blink occasionally, then it should not be a boot loop situation.

Connect the raspberry pi to the network using ethernet, then type "ping raspberrypi", or "ping raspberrypi.local", repeat for a couple of times, see if there is any response.

Try download the latest Raspbian, from https://www.raspberrypi.org/downloads/raspberry-pi-os/, and image to your SD card. From your description, we can't be sure the SDcard OS image is working, unless you have any PI to test out.

It would be good to find out if the HDMI ports are having problem too with these tests. Idea is if it does boot up, it should at least reply with network ping.


davidktw 20-07-2020 06:34 PM

Quote:

Originally Posted by ComicBook (Post 128595289)
Thank you David!!!

I followed your recommendation and have successfully pinged to my RPi4!
I am now updating and upgrading it headless and wireless. :s13:

So the pi is working, only the screen/mouse/keyboard might not be working for the pi... :s22:

Glad it helps :) screen mouse or keyboard not working is pretty rare. Modern monitor and HDMI should be rather stable to at least get picture.

You try image a new copy of raspbian and see if helps with ur problem. :)
Since you can at least go headless, enable SSH by simply touching a /boot/ssh file (google for more information), then SSH in and see what could be the problem :)


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