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by walterqq
Thu Feb 25, 2021 8:24 pm
Forum: General
Topic: Thonny MicroPython program freezes
Replies: 5
Views: 167

Re: Thonny MicroPython program freezes

I also experienced the freeze with minor modifications to the led blink example on a bare pico, but that took an hour or so to freeze. I'm trying to reproduce it that way, but it hasn't happened yet. I know people are going to want to blame the Pimoroni code for this, so I wanted to be clear that I'...
by walterqq
Thu Feb 25, 2021 7:58 pm
Forum: General
Topic: Thonny MicroPython program freezes
Replies: 5
Views: 167

Re: Thonny MicroPython program freezes

I have tried a higher quality cable in case my cable was flakey. I used one from an expensive device that I know works well, but got the same freeze. Here is one of the programs that fails to run. This one requires the Pimoroni pico display and the Pimoroni .uf2 This is actually a modified version o...
by walterqq
Wed Feb 24, 2021 5:09 pm
Forum: General
Topic: Thonny MicroPython program freezes
Replies: 5
Views: 167

Re: Thonny MicroPython program freezes

I have seen this happen from Thonny on a Pi 4 and from Thonny on MacOS.

It has since gotten worse. Now the programs only run for 1 or 2 seconds before they freeze. I have to unplug the pico to get Thonny to talk to it again.
by walterqq
Tue Feb 23, 2021 6:33 pm
Forum: General
Topic: Thonny MicroPython program freezes
Replies: 5
Views: 167

Thonny MicroPython program freezes

I have a MicroPython program that runs for hours drawing stuff on a Pimoroni pico display. It will run for days if the pico has launched the program at boot. If I have run the program from Thonny by hitting the play button, it will only run for an hour or two before freezing. No errors are reported ...
by walterqq
Tue Feb 23, 2021 5:19 pm
Forum: General
Topic: My pico won't show up on Pi4
Replies: 4
Views: 135

Re: My pico won't show up on Pi4

I was able to see and program 2 Picos via an 8gig Pi 4 running the 64bit os. No problem from the Pi.

I did have to sort through my collection of Micro USB cables to find one that was wired for data and not just power. Once I had a good cable it worked on the first try.
by walterqq
Tue Feb 02, 2021 8:13 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: DS18B20 Issue
Replies: 8
Views: 348

Re: DS18B20 Issue

Well, your picture shows them connected to 5v. This is how I wire mine. They _should_ also work connected to 3.3v. I run 4 DS18B20 sensors from one pi every day and they are rock solid for me. You shouldn't have any issue with 3. I would not expect a new Pi to solve the problem, but it is possible. ...
by walterqq
Tue Jan 19, 2021 8:06 pm
Forum: General discussion
Topic: Analog / Digital converter with Node js
Replies: 1
Views: 53

Re: Analog / Digital converter with Node js

I would try reading your ADC via something else like Python to verify you have it connected correctly. You might also see if there is a Node-RED node that reads your ADC.

You need to figure out a way to pin down what part of the setup is failing.
by walterqq
Wed Jan 06, 2021 3:22 pm
Forum: General discussion
Topic: Pi Laptop - pibook!
Replies: 9
Views: 605

Re: Pi Laptop - pibook!

I also eyed the Pi Top 1 and 2.

There is also the Crow Pi 2 to consider, it uses the Pi 4!
https://www.elecrow.com/crowpi2-raspber ... aptop.html
by walterqq
Wed Jan 06, 2021 3:17 pm
Forum: General discussion
Topic: best choice for a RPi completely installed in a notebook housing?
Replies: 13
Views: 494

Re: best choice for a RPi completely installed in a notebook housing?

I too am watching for a Pi based laptop. I want to work on projects while sitting on the couch watching TV.

The one I like the most right now is the CrowPi2:
https://www.elecrow.com/crowpi2-raspber ... aptop.html

It uses a Pi4!
by walterqq
Tue Jan 05, 2021 5:44 pm
Forum: General discussion
Topic: Water tank level monitoring. Skill level required?
Replies: 19
Views: 2356

Re: Water tank level monitoring. Skill level required?

For a no climbing solution, I think you could tap into the water supply line on the ground or in a building and use a pressure sensor. The sensor would have to have enough resolution to give a useful range between full and empty. For a tank that is 4 feet high and 20 feet off the ground for instance...
by walterqq
Tue Oct 06, 2020 3:30 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 667
Views: 144981

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

Do this from sudo raspi-config - instead of in the desktop AHA! I had forgotten that there was a command line version of the config utility and that it was more capable than the GUI version. I thought "raspi-config" was just shorthand for launching Raspberry Pi Configuration. Ha ha. That ...
by walterqq
Mon Oct 05, 2020 7:02 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 667
Views: 144981

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

I feel dumb, but I STILL can't get the VNC server going. I've done: sudo apt update sudo apt full-upgrade sudo reboot twice. Still no VNC server icon in the menu bar and Raspberry Pi Configuration->Interfaces still has the VNC radio boxes greyed out. Hovering the mouse over them says "The VNC s...
by walterqq
Thu Sep 24, 2020 6:48 pm
Forum: General discussion
Topic: STICKY: Raspberry Pi OS (64 bit) beta test version feedback
Replies: 667
Views: 144981

Re: STICKY: Raspberry Pi OS (64 bit) beta test version feedback

I've done:
sudo apt-get update
sudo apt-get dist-upgrade
sudo apt upgrade
rebooted

but still don't have a working RealVNC server. VNC is still greyed out in Raspberry Pi Configuration. Any ideas?
by walterqq
Tue Sep 15, 2020 8:35 pm
Forum: General discussion
Topic: Node RED is taking too much RAM (and growing)
Replies: 3
Views: 222

Re: Node RED is taking too much RAM (and growing)

If you are asking about how to not start Node-RED at startup, try:
sudo systemctl disable nodered.service
sudo systemctl stop nodered.service
by walterqq
Tue Sep 15, 2020 8:30 pm
Forum: General discussion
Topic: How long does a raspberry pi live?
Replies: 13
Views: 830

Re: How long does a raspberry pi live?

My first Pi from 2012 still boots and runs fine. The only Pi I have ever had fail was completely my fault, do not apply 12v to the GPIO pins!
by walterqq
Wed Jul 29, 2020 2:54 pm
Forum: General discussion
Topic: Send data to PC over wifi
Replies: 6
Views: 392

Re: Send data to PC over wifi

Are you looking to move the data once, or stream data to the PC? If you are looking to stream the data MQTT is my favorite way to do that. It is a light weight protocol that allows you to publish data to a broker (that can be running on the Pi or the PC) and subscribe to the data from the PC. Node-R...
by walterqq
Wed Jul 29, 2020 2:48 pm
Forum: General discussion
Topic: Making a smart power bar dumb!
Replies: 19
Views: 981

Re: Making a smart power bar dumb!

They do make commercial products designed to allow you to safely control appliances with the Pi:
https://www.sparkfun.com/products/14236

I think you would need one for each thing to be controlled though.
by walterqq
Wed Apr 29, 2020 7:08 pm
Forum: General discussion
Topic: Using Pi0 as network camera
Replies: 2
Views: 297

Re: Using Pi0 as network camera

Have you looked at this page
https://randomnerdtutorials.com/video-s ... pi-camera/
that describes setting up the pi camera to stream to a web page?

I've tried it and it worked great to show a live image in a web page. I used it on a Pi4, haven't tried it on a pi0.
by walterqq
Tue Mar 24, 2020 3:48 pm
Forum: General discussion
Topic: Raspberry Pi for power monitoring
Replies: 4
Views: 315

Re: Raspberry Pi for power monitoring

To start simple, just set up the pi to update something on your server. If you see the update, the house has power. The pi would have to be set up to run whatever you set up at boot.

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