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by gordon77
Tue Jun 25, 2019 8:40 am
Forum: Beginners
Topic: Raspberry pi 4 sold out?
Replies: 19
Views: 850

Re: Raspberry pi 4 sold out?

It is not sold out, there is still 2GB version here https://thepihut.com/products/raspberry-pi-4-model-b If you want specific RAM size only then please rename topic title. BTW, 2GB was my preferrred model so yesterday I ordered that one immediatelly, looks like I am a minority, everyone wants 1 or ...
by gordon77
Mon Jun 24, 2019 8:59 pm
Forum: Raspbian
Topic: Buster and Thonny issue
Replies: 1
Views: 75

Buster and Thonny issue

I've tried Thonny with my python script of 5900 + lines and still waiting for it to load,!!

Anyone else have an issue?

Never previously had an issue with previous Raspbians with IDLE3.
by gordon77
Mon Jun 24, 2019 6:58 pm
Forum: Raspbian
Topic: Raspbian 'Buster' 2019-06-20
Replies: 69
Views: 2989

Re: Raspbian 'Buster' 2019-06-20

As someone who bought a Pi 3B+ yesterday, and brand new to the platform, is there a known reason why IDLE Python IDE was removed? I have begun learning to write Python in exactly this tool. Are there better options? I have had some console output issues with Geany thus far. Apologies for the noob q...
by gordon77
Mon Jun 24, 2019 5:12 pm
Forum: Raspbian
Topic: Upgrade from stretch to buster possible?
Replies: 5
Views: 677

Re: Upgrade from stretch to buster possible?

This is what the Pi4 blog item says about buster.. Some advice for those who are keen to get going with Raspbian Buster right away: we strongly recommend you download a new image, rather than upgrading an existing card. This ensures that you’re starting with a clean, working Buster system. If you re...
by gordon77
Mon Jun 24, 2019 4:57 pm
Forum: Python
Topic: sudo pip3 install opencv-python fails...
Replies: 3
Views: 80

Re: sudo pip3 install opencv-python fails...

Thanks for the explanation.
by gordon77
Mon Jun 24, 2019 2:32 pm
Forum: Python
Topic: sudo pip3 install opencv-python fails...
Replies: 3
Views: 80

sudo pip3 install opencv-python fails...

using latest Raspbian... sudo pip3 install opencv-python Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple Collecting opencv-python Could not find a version that satisfies the requirement opencv-python (from versions: ) No matching distribution found for opencv-python Anyo...
by gordon77
Mon Jun 24, 2019 12:17 pm
Forum: Off topic discussion
Topic: NASA and Raspberry Pi
Replies: 8
Views: 823

Re: NASA and Raspberry Pi

BBC News - Raspberry Pi used to steal data from Nasa lab
https://www.bbc.co.uk/news/technology-48743043
by gordon77
Fri Jun 21, 2019 6:44 pm
Forum: HATs and other add-ons
Topic: gertboard
Replies: 1
Views: 156

Re: gertboard

As far as l know the gertboard will work on all Pi's, it just uses the first 26 pins. https://www.raspberrypi.org/forums/viewtopic.php?t=149781 Hopefully a user can confirm. But note the comment here https://www.element14.com/community/thread/57805/l/connect-pi-v3-to-gertboard-v1?displayFullThread=t...
by gordon77
Fri Jun 21, 2019 6:34 pm
Forum: Beginners
Topic: How to make the GPIO connections more robust
Replies: 10
Views: 924

Re: How to make the GPIO connections more robust

Solder wires to the underside of the board. It is easier than soldering to the long pins on the top side and doesn't "limit any future uses". The GPIOs are electrically fragile and if abused can lead to fatal damage to the whole RPi. You must understand what the restrictions are and abide by them. ...
by gordon77
Fri Jun 21, 2019 4:26 pm
Forum: Beginners
Topic: How to make the GPIO connections more robust
Replies: 10
Views: 924

Re: How to make the GPIO connections more robust

The most secure method would be soldering the connections, but this might limit any future uses. The next would be a good quality 40pin socket and soldered wires. This type of connector https://www.amazon.co.uk/2-54mm-40-Pin-Female-Header-Connector-Black/dp/B00R1LLM1M or maybe one with longer pins t...
by gordon77
Fri Jun 21, 2019 12:57 pm
Forum: Troubleshooting
Topic: Wrong Image Color
Replies: 13
Views: 597

Re: Wrong Image Color

So: I have 6 Rpi's (half zero pi's) there all have the same cam. Do you mean you have only one camera that you swap between the six Pis, or do you have six supposedly identical cameras, one for each Pi? I admit l am a bit confused whether 1 or 6 cameras, and don't know how the output can vary betwe...
by gordon77
Fri Jun 21, 2019 6:44 am
Forum: Troubleshooting
Topic: Wrong Image Color
Replies: 13
Views: 597

Re: Wrong Image Color

If you swap the 'normal' camera with a 'bad' one does the problem move?

I suggest one camera is a normal one or noir
by gordon77
Thu Jun 20, 2019 5:10 pm
Forum: General discussion
Topic: Is my cell phone charger good enough to supply power to my raspberry pi
Replies: 20
Views: 859

Re: Is my cell phone charger good enough to supply power to my raspberry pi

There are three categories of charger: The Good The Bad The Ugly Only chargers in the first category will work properly to power a Pi. Unfortunately it is not always possible to determine the category of a particular charger; some may even vary in category depending on temperature, phase of moon, a...
by gordon77
Thu Jun 20, 2019 12:37 pm
Forum: Troubleshooting
Topic: Wrong Image Color
Replies: 13
Views: 597

Re: Wrong Image Color

Rupiert wrote:
Thu Jun 20, 2019 12:29 pm
I bought the one, one month bevor.
If you mean the camera could it be a normal one, not noir?
by gordon77
Thu Jun 20, 2019 11:47 am
Forum: Troubleshooting
Topic: Wrong Image Color
Replies: 13
Views: 597

Re: Wrong Image Color

Rupiert wrote:
Thu Jun 20, 2019 11:43 am
One of my Rpi's make right pictures. So i do not understand what is the difference. The only one capture green like in a real picture, the other's don't!

Earlier you said


"They all make wrong color on pictures like that" , so what changed?
by gordon77
Thu Jun 20, 2019 9:09 am
Forum: Troubleshooting
Topic: Wrong Image Color
Replies: 13
Views: 597

Re: Wrong Image Color

Indeed, looks like a NOIR camera, which will give strange colour effects in daylight conditions. In English it says... NIGHT VISION - High performance infrared LEDs guarantee optimal night vision. Since the Raspi NOIR camera module does not have an IR filter, the infrared radiation that is invisibl...
by gordon77
Wed Jun 19, 2019 7:15 pm
Forum: Beginners
Topic: Assigning fixed USB ports
Replies: 9
Views: 595

Re: Assigning fixed USB ports

by gordon77
Wed Jun 19, 2019 8:35 am
Forum: Beginners
Topic: Assigning fixed USB ports
Replies: 9
Views: 595

Re: Assigning fixed USB ports

CUL ( C C1101 U SB L ite) is a RF device in the form factor of a USB dongle with an external antenna

FHEM ( R ) is a Perl-written GPL v2 licensed server for home automation.
by gordon77
Tue Jun 18, 2019 5:24 pm
Forum: Python
Topic: Picamera take several photos issue
Replies: 5
Views: 214

Re: Picamera take several photos issue

filepath = "/mnt/usb/" + now + ".jpg"

I would have expected the USB at

/media/pi/ followed by the USB stick name

Eg /media/pi/usb1/
by gordon77
Tue Jun 18, 2019 8:53 am
Forum: Camera board
Topic: Text overlay over split screen live preview
Replies: 3
Views: 213

Re: Text overlay over split screen live preview

I tried the OPs script and firstly it says.. Traceback (most recent call last): File "/home/pi/split1.py", line 37, in <module> topOverlayImage = textOverlayCanvas.copy() NameError: name 'textOverlayCanvas' is not defined so I added.. # Create empty images to store text overlays textOverlayCanvas = ...
by gordon77
Mon Jun 17, 2019 11:27 am
Forum: Staffroom, classroom and projects
Topic: art project with a traffic light
Replies: 4
Views: 256

Re: art project with a traffic light

This may get you started. https://www.raspberrypi.org/forums/viewtopic.php?t=223659 Change the buttons to pirs, they may need inverting try this... from gpiozero import LED from gpiozero import Button from time import sleep red1 = LED(23) # RED set 1 amber1 = LED(24) # AMBER set 1 green1 = LED(25) #...
by gordon77
Mon Jun 17, 2019 11:10 am
Forum: Beginners
Topic: controlling traffic light with PI
Replies: 2
Views: 127

Re: controlling traffic light with PI

This may get you started.
viewtopic.php?t=223659
by gordon77
Sun Jun 16, 2019 7:47 pm
Forum: Advanced users
Topic: I2S and I2C on GPIO-Pins
Replies: 6
Views: 488

Re: I2S and I2C on GPIO-Pins

I have never used i2s but searching the Internet it appears on gpios 18,19,20 and 21, these don't appear to be used by i2c

https://learn.adafruit.com/adafruit-i2s ... pi/pinouts
by gordon77
Sun Jun 16, 2019 6:46 pm
Forum: Off topic discussion
Topic: Arduino connection to the PI (with 12C)
Replies: 18
Views: 2268

Re: Arduino connection to the PI (with 12C)

Both voltages need to go to the level shifter, otherwise the level shifter will not work. Edit: The voltages are used to provide power to the level shifter itself. Without that connected it will not work properly. I could give you a detailed explanation why. Hi! Can you explain me pls? Take a look ...

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