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by mahjongg
Thu Jun 27, 2019 11:03 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: LCD gibberish woes :(
Replies: 2
Views: 116

Re: LCD gibberish woes :(

moved this post, and deleted the duplicate, next time flag a moderator to move a post/thread.
by mahjongg
Thu Jun 27, 2019 10:56 am
Forum: Troubleshooting
Topic: blank screen in VNC and RDP
Replies: 19
Views: 18743

Re: blank screen in VNC and RDP

locking, will delete these last two posts shortly
by mahjongg
Wed Jun 26, 2019 8:06 pm
Forum: General discussion
Topic: Monitor
Replies: 8
Views: 125

Re: Monitor

You can use any DVI-D monitor with a (micro)HDMI to DVI-D cable, no "converter box needed" just a cable ! With the VGA666 HAT you can connect any VGA monitor directly, or you can use a (micro)HDMI to VGA converter box. The PI can power such a box without the need for an external supply, directly fro...
by mahjongg
Wed Jun 26, 2019 3:20 pm
Forum: Beginners
Topic: Solder a RJ Connector on a raspberry pi zero?
Replies: 4
Views: 112

Re: Solder a RJ Connector on a raspberry pi zero?

An Ethernet interface doesn't exist of just a connector! :geek: :mrgreen: You need a whole lot of electronics in-between the zero and the RJ-jack. the easiest solution, in hardware, would probably be an USB-to-Ethernet adapter. Another solution would be a smart Ethernet adapter with an SPI interface...
by mahjongg
Wed Jun 26, 2019 11:42 am
Forum: General discussion
Topic: How is 3.5 mm analog audio out on PI4?
Replies: 15
Views: 601

Re: How is 3.5 mm analog audio out on PI4?

The PI4, like all previous PI's has some GPIO pins dedicated to a high quality serial audio interface called I2S, this offers even better sound quality than HDMI, and only needs a simple CODEX chip to convert to stereo audio. Various HATs exist that offer this function, an they will work with a PI4....
by mahjongg
Wed Jun 26, 2019 11:33 am
Forum: Beginners
Topic: Stepper Motors : error with testNema.py
Replies: 2
Views: 31

Re: Stepper Motors : error with testNema.py

hijacked thread split and renamed.
by mahjongg
Tue Jun 25, 2019 10:42 pm
Forum: Troubleshooting
Topic: Pi 4 Installation Issues (Solved)
Replies: 17
Views: 480

Re: Pi 4 Installation Issues

With its new BOOTROM (EEPROM) regular flashing of the green ACT LED will occur if the RPI doesn't detect start.elf, so only if the ACT LED flashes in an irregular pattern, the PI is booting! you can check this by removing the SD-card (and all other potential boot media) and turn the PI on, the ACT L...
by mahjongg
Tue Jun 25, 2019 9:39 pm
Forum: Troubleshooting
Topic: STICKY: Is your Pi not booting? (The Boot Problems Sticky)
Replies: 3
Views: 1176879

Re: STICKY: Is your Pi not booting? (The Boot Problems Sticky)

This information is written especially for the RPI 4B . Unlike previous Raspberry PI's the RPI4B boots with the use of code from a built in EEPROM, that means it can use more complex boot code with more flexibility, and the ability to add new features. consequently when the new bootcode doesn't det...
by mahjongg
Tue Jun 25, 2019 8:20 pm
Forum: Wanted
Topic: Looking for MonkMakes Amplified Speaker
Replies: 4
Views: 119

Re: Looking for MonkMakes Amplified Speaker

Resellers are on their home (front) page, for the US its amazon, and eduporium, website is here: https://www.eduporium.com/store/catalog ... =monkmakes
by mahjongg
Tue Jun 25, 2019 7:45 pm
Forum: Beginners
Topic: How do I add "time shifting" to Raspberry Pi TV HAT
Replies: 12
Views: 212

Re: How do I add "time shifting" to Raspberry Pi TV HAT

What is the difference? You mean it records in three circular buffers all having 24H capacity? while also streaming the same three video channels to Ethernet... sound like a tall order indeed. what storage device can accept three video streams (unencoded) in real time? is the TV hat even capable of ...
by mahjongg
Tue Jun 25, 2019 5:54 pm
Forum: Beginners
Topic: How do I add "time shifting" to Raspberry Pi TV HAT
Replies: 12
Views: 212

Re: How do I add "time shifting" to Raspberry Pi TV HAT

analyser wrote:
Tue Jun 25, 2019 5:39 pm

Same places call it "time shifting" and same "catch up"
I call it "recording a television program".
by mahjongg
Tue Jun 25, 2019 11:18 am
Forum: Gaming
Topic: Help choosing a proper display for emulation.
Replies: 2
Views: 92

Re: Help choosing a proper display for emulation.

For best performance you should use a display that doesn't need its own RPI driver, that is either HDMI or use the official 7" LCD. If you use a small display that uses an SPI interface you need a "framebuffer driver", that constantly copies the framebuffer (video RAM) to the display using a serial ...
by mahjongg
Mon Jun 24, 2019 6:17 pm
Forum: General discussion
Topic: I don't understand the point of still using USB 2.0
Replies: 12
Views: 514

Re: I don't understand the point of still using USB 2.0

Most often two USB ports are only used to connect a keyboard and a mouse anyway.
by mahjongg
Mon Jun 24, 2019 1:08 pm
Forum: Beginners
Topic: STICKY: Using a Gert VGA 666 adapter - [HOWTO]
Replies: 165
Views: 184829

Re: STICKY: Using a Gert VGA 666 adapter - [HOWTO]

FreZeeN wrote:
Mon Jun 24, 2019 10:25 am
a simple question:

is the new pi4 compatible with vga666?
Yes!
by mahjongg
Mon Jun 24, 2019 1:06 pm
Forum: Raspbian
Topic: Raspbian 'Buster' 2019-06-20
Replies: 77
Views: 4027

Re: Raspbian 'Buster' 2019-06-20

bubu_pl wrote:
Mon Jun 24, 2019 12:48 pm
when will raspbian be 64 bits?
Raspbian Is 32-BIT so its compatible with previous PI's.

If you MUST have a 64-bit OS (although its slower, and uses more memory) use another OS, there are several that support 64-bit
by mahjongg
Mon Jun 24, 2019 7:30 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 470
Views: 25513

Re: Raspberry Pi 4 Thread - general discussion

endera wrote:
Mon Jun 24, 2019 7:20 am
hi,

Will this new(Rpi4) product support Windows 10?
Windows 10 ARM? that is up to microsoft.
by mahjongg
Mon Jun 24, 2019 7:20 am
Forum: General discussion
Topic: Raspberry Pi 4 Thread - general discussion
Replies: 470
Views: 25513

Re: Pi4 Thread - general discussion

Thank you for solving (I guess) the Scratch 3 problem I asked about Scratch for the RPI4, and got this comment: The online Scratch 3 runs pretty well. The faster ARM processor and increased RAM really help the HTML5 editor. The default display environment is FKMS so 3D acceleration works. You might...
by mahjongg
Sun Jun 23, 2019 5:32 pm
Forum: Advanced users
Topic: timing the input high time
Replies: 4
Views: 140

Re: timing the input high time

both copies were flagged, that often happens.
by mahjongg
Sun Jun 23, 2019 5:12 pm
Forum: Other
Topic: Can I use Pi-Top OS without Pi-top Hardware
Replies: 17
Views: 998

Re: Can I use Pi-Top OS without Pi-top Hardware

Lincy96 wrote this.
lincy96 wrote:
Sun Jun 23, 2019 12:15 pm
Yes you can use Pi-Top OS without Pi-Top hardware.
alas, the also was a spammer, so I deleted his/her post, and banned him/her. :roll:
by mahjongg
Sun Jun 23, 2019 1:42 pm
Forum: Advanced users
Topic: timing the input high time
Replies: 4
Views: 140

Re: timing the input high time

by mahjongg
Sat Jun 22, 2019 3:17 pm
Forum: General programming discussion
Topic: Chart with multiple variables. How?
Replies: 4
Views: 277

Re: Chart with multiple variables. How?

duplicate copy removed
by mahjongg
Fri Jun 21, 2019 12:16 pm
Forum: Beginners
Topic: How to turn on a LED
Replies: 8
Views: 729

Re: How to turn on a LED

Interrupted power strips are indeed in my "common pitfalls sticky", viewtopic.php?f=91&t=83372&p=589714#p635787
by mahjongg
Fri Jun 21, 2019 9:50 am
Forum: Troubleshooting
Topic: USB Auto mount - Raspbian Stretch Lite [Solved]
Replies: 20
Views: 50458

Re: USB Auto mount - Raspbian Stretch Lite [Solved]

This thread deserves locking....
by mahjongg
Thu Jun 20, 2019 9:55 pm
Forum: Beginners
Topic: How to turn on a LED
Replies: 8
Views: 729

Re: How to turn on a LED

a rookie mistake would be to insert the flatcable connector on the other (invisible in this picture) side, rotated 180 degrees. the brown-red wire pair should be near the pin-1 (left in most pictures of a PI) side, not on the right hand side (near the USB connectors). another rookie mistake would be...
by mahjongg
Tue Jun 18, 2019 9:07 pm
Forum: General discussion
Topic: QR code reader
Replies: 5
Views: 285

Re: QR code reader

Thats not a QR code, QR codes are easily recognizable by the three alignment squares in three corners of the square.
not every two dimensional barcodes are QR (Quick Recognition) codes.

see wikipedia https://en.wikipedia.org/wiki/QR_code

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