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by hippy
Tue Aug 14, 2018 6:28 pm
Forum: Troubleshooting
Topic: RPi 3 b+ won't boot after installing software update.
Replies: 3
Views: 61

Re: RPi 3 b+ won't boot after installing software update.

I had the same issue. I have brand new pi 3b+, install dietpi n first boot was fine. Updating the system then reboot. Can't boot up after reboot. Tried flashing SD, and many others. The none actually work Tested 3v3 getting no voltage Not sure what else I could do Same advice as above; contact your...
by hippy
Tue Aug 14, 2018 3:40 pm
Forum: Beginners
Topic: Reading a few sensors in the same time (Python)
Replies: 2
Views: 60

Re: Reading a few sensors in the same time (Python)

What is the best solution for this? New threads for all sensors? Every sensor in separate Python script? I would have thought threads but you could write each as separate programs. Then write another master program which can import those programs and run them as threads of itself. Then you have bot...
by hippy
Tue Aug 14, 2018 3:32 pm
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Issues with I2C AC Dimmers and DHT-Sensors
Replies: 6
Views: 129

Re: Issues with I2C AC Dimmers and DHT-Sensors

If I only run the program, the sensors do measure the temperature and the humidity very reliable. But when I start to switch lights on/off and dimm them, some of the sensors stop working after some time. The only way to make them work again is to completely power down the whole thing and start agai...
by hippy
Tue Aug 14, 2018 2:47 pm
Forum: General discussion
Topic: Can I connect my raspberry Pi to my laptop to increase performance?
Replies: 11
Views: 252

Re: Can I connect my raspberry Pi to my laptop to increase performance?

Totally ludicrous idea, the RPi is a Small Board Computer, not an add-on. It's not totally ludicrous. The Pi is both a small computer in its own right and an add-on, particularly when used as a USB gadget, or even networked. The OP might not achieve exactly what they were hoping for but there are p...
by hippy
Tue Aug 14, 2018 1:53 pm
Forum: Troubleshooting
Topic: How to make a warrany claim?
Replies: 12
Views: 245

Re: How to make a warrany claim?

I killed a 3B+ by accidentally shorting 3V3 pin 1 to the metal chip cover with RPi logo (GND). The RPi instantly went off. The 3V3 reads 0V and also reads as as shorted to GND using Ohm meter. The PMIC is totally shut down so no 1V8 output either. Don't know if fault is internal or external to the ...
by hippy
Tue Aug 14, 2018 11:47 am
Forum: Other projects
Topic: Pi 3b+ No 4 on the way - ideas
Replies: 1
Views: 83

Re: Pi 3b+ No 4 on the way - ideas

Roken wrote:
Mon Aug 13, 2018 8:02 pm
So looking for ideas for Pi no.4. I'm toying with the idea of taking some load of Pi 1, but if there are better ideas?
What is your criteria for better ?
by hippy
Tue Aug 14, 2018 11:31 am
Forum: Beginners
Topic: I need help to send time stamp to PC
Replies: 7
Views: 172

Re: I need help to send time stamp to PC

I imagine MQTT or similar could be used so there's no need to mess about with low-level stuff like UDP datagrams and sockets.
by hippy
Tue Aug 14, 2018 11:20 am
Forum: Troubleshooting
Topic: First working, then Dead 3B+
Replies: 7
Views: 221

Re: First working, then Dead 3B+

Also @drgeoff about the bottom of the board or the pins of the GPIO header touching anything metallic, i'm pretty sure they didn't. Is there any way to check for something like that? Not easily and that can cause problems when it's not clear whether a product failure was caused by the customer or w...
by hippy
Tue Aug 14, 2018 10:59 am
Forum: General discussion
Topic: pi zero w in quantities of 10...50
Replies: 72
Views: 7190

Re: pi zero w in quantities of 10...50

Fyi, it is still 1 per customer. Use a different vendor. That doesn't solve the problem, it merely ignores it. I'm not sure it is a problem as such. One retailer may be unwilling to sell more than one board but others do. My local car dealer doesn't sell a particular make of car but the one next do...
by hippy
Tue Aug 14, 2018 10:51 am
Forum: Other projects
Topic: RPI-Z as compass feedback
Replies: 8
Views: 130

Re: RPI-Z as compass feedback

I believe you are correct in that you can't get the direction one is facing from GPS data alone. You would need a vector like drgeoff mentioned. But *I* might be mistaken. No; you are both correct AIUI. From sequential GPS locations you could determine direction of its travel but not the direction ...
by hippy
Tue Aug 14, 2018 10:40 am
Forum: Off topic discussion
Topic: Definition of ironic
Replies: 32
Views: 843

Re: Definition of ironic

Why do they always use "food names" for naming a new tech/improved tech?! Some of the early and home computers were given names of food; Apple, Apricot, Tangerine. I guess most, including the Foundation, are paying homage to that and keeping that 'tradition' alive. From fairly early on Google descr...
by hippy
Tue Aug 14, 2018 10:18 am
Forum: Advanced users
Topic: (solved) Disable red power led on 3B+
Replies: 8
Views: 246

Re: Disable red power led on 3B+

Superpi wrote:
Mon Aug 13, 2018 9:57 pm
Thanks, hippy, for a knowledgable and quick answer. I take that as "No, not with a few hours of work and certainly not using Ruby".
I wouldn't be that absolute. If the LED can be controlled through the mailbox interface then it should be possible to control it from Ruby or anything else.
by hippy
Mon Aug 13, 2018 8:44 pm
Forum: Advanced users
Topic: (solved) Disable red power led on 3B+
Replies: 8
Views: 246

Re: Disable red power led on 3B+

The power LED on the Pi 3B+ is connected across 5V and 0V so lights up whenever power is supplied, whether through the micro-USB connector, GPIO or test points. The LED can however be shorted out and turned off by using the STATUS_LED_R control line. Unfortunately the full Pi 3B+ circuit diagrams ar...
by hippy
Mon Aug 13, 2018 6:52 pm
Forum: Beginners
Topic: swapping sd cards with another??
Replies: 1
Views: 48

Re: swapping sd cards with another??

Yes it's a simple as that; remove one card, use another. It's like swapping one hard disk in a PC for another but much easier. One of the great advantages of the Pi using SD Cards. Always remember to properly shut down your system before turning power off and removing your card. If you find you are ...
by hippy
Mon Aug 13, 2018 4:22 pm
Forum: General discussion
Topic: Raspberry Pi 3 Dead While trying to install NOOBS, what could have caused it?
Replies: 5
Views: 184

Re: Raspberry Pi 3 Dead While trying to install NOOBS, what could have caused it?

I suggest you start by installing Raspbian from the raspberrypi.org download pages. Follow the simple instructions there. NOOBS causes more problems and confusion than a newbie should have to deal with. I would suggest the OP starts by getting power to the board. That we try to help them achieve th...
by hippy
Mon Aug 13, 2018 4:09 pm
Forum: General discussion
Topic: Raspberry Pi 3 Dead While trying to install NOOBS, what could have caused it?
Replies: 5
Views: 184

Re: Raspberry Pi 3 Dead While trying to install NOOBS, what could have caused it?

And I waited between 1-2 minutes and then my raspberry pi 3 stopped displaying anything to my monitor and i noticed that the red light that indicates that power is provided had gone out. It could be a power supply issue. If you unplug the supply, remove the SD card, plug the supply back in, does it...
by hippy
Mon Aug 13, 2018 4:02 pm
Forum: Troubleshooting
Topic: How to make a warrany claim?
Replies: 12
Views: 245

Re: How to make a warrany claim?

It's a new Pi3 b+ Model. No prizes for guessing what I was guessing. Tried the "Secret method" to check if my Pi was Dead... When plugged in, it did not "Ding" on windows That won't work with a Pi 3B+ but if you have the skills and tools you can check to see if 3V3 is present on the GPIO power pins...
by hippy
Mon Aug 13, 2018 2:35 pm
Forum: Troubleshooting
Topic: How to make a warrany claim?
Replies: 12
Views: 245

Re: How to make a warrany claim?

It depends on where you are, what jurisdiction you are in, what the laws, rules and regulations say, but it is usually the retailer or seller who is responsible for resolving disputes on product which may appear to be faulty; repairing, replacing or refunding as may be required. That is because your...
by hippy
Mon Aug 13, 2018 1:27 pm
Forum: Advanced users
Topic: Fan Power Source
Replies: 2
Views: 65

Re: Fan Power Source

I am looking for a power source OTHER that the GPIO pins as I need them for my 40pin cable assembly to my breadboard. You could run wires back from the power points on the breadboard for your fan, or use another mains PSU wallwart for supplying the fan's power, which might be the best recommendatio...
by hippy
Mon Aug 13, 2018 1:10 pm
Forum: Assistive technology and accessibility
Topic: Dementia Book Player
Replies: 3
Views: 170

Re: Dementia Book Player

It might be worth looking at MP3/WAV player modules which can be controlled by a simple and cheap microcontroller. Some of those include amplifiers for attaching a speaker. That would also better suit small size and minimal power consumption than a Raspberry Pi, even a Zero. Something which can run ...
by hippy
Mon Aug 13, 2018 12:53 pm
Forum: Troubleshooting
Topic: RPi 3 b+ won't boot after installing software update.
Replies: 3
Views: 61

Re: RPi 3 b+ won't boot after installing software update.

my Pi simply can't read from the SD Card anymore (the ACT light doesn't come on at all, only the PWR light stays on solid). There is a growing number of Pi 3B+ boards which appear to have mysteriously died though there's no sign those are related beyond being mysterious and unexplained, and the num...
by hippy
Mon Aug 13, 2018 12:16 pm
Forum: General discussion
Topic: (Solved)Which models of USB HDD work when connected directly to the PI?
Replies: 13
Views: 330

Re: Which models of USB HDD work when connected directly to the PI?

I just connected my 320GB CORE by CnM (TM) portable HDD and that worked fine when powered from a Pi 3B's USB port. Plugged it in, used File Manager to check expected files were there, ejected it, so not an exhaustive test. Don't know how old that is or if still available but does prove at least one ...
by hippy
Mon Aug 13, 2018 11:35 am
Forum: Python
Topic: Update to "pip v18" breaks the other 'pip/pip3'
Replies: 2
Views: 83

Re: Update to "pip v18" breaks the other 'pip/pip3'

PIP and PIP3 have become a complete mess and nightmare and I don't think anyone but the PIP team can take the blame for that. I have always steered clear of both whenever I could but sometimes I am forced to use them. When I last needed to do so I found PIP was broken but PIP3 was fine. It doesn't h...
by hippy
Sun Aug 12, 2018 4:51 pm
Forum: Troubleshooting
Topic: Fried Raspberry
Replies: 4
Views: 115

Re: Fried Raspberry

Another 3B+ which appears to have mysteriously died though there's no sign those are related beyond being mysterious and unexplained, and the number would still appear to be minimal compared to the number sold. Red power LED on but no 3V3 does seem to me to be a common theme with those Pi 3B+'s whic...
by hippy
Sun Aug 12, 2018 4:44 pm
Forum: Troubleshooting
Topic: First working, then Dead 3B+
Replies: 7
Views: 221

Re: First working, then Dead 3B+

Another 3B+ which appears to have mysteriously died though there's no sign those are related beyond being mysterious and unexplained, and the number would still appear to be minimal compared to the number sold. There is a Boot Sticky which is well worth reading but I would guess you have done that a...

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