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by PhatFil
Fri Feb 15, 2019 12:48 pm
Forum: Beginners
Topic: how to get the cable out of the case
Replies: 2
Views: 63

Re: how to get the cable out of the case

use the header cable while you develop your project and get all the 'wrinkles ironed out'. Once done and you have pinned down which gpio pins you are using, you can solder connecting wires to the underside of the header so you can fit the project into your case. if new to soldering its a basic skill...
by PhatFil
Fri Feb 15, 2019 8:57 am
Forum: Python
Topic: Need help modifying a Gmail message retrieval script
Replies: 10
Views: 129

Re: Need help modifying a Gmail message retrieval script

Thanks, yes I know this one, but I am not proficient enough in Python to figure this out. IMAP4.search(charset, criterion[, ...]) Search mailbox for matching messages. charset may be None, in which case no CHARSET will be specified in the request to the server. The IMAP protocol requires that at le...
by PhatFil
Wed Feb 13, 2019 5:50 pm
Forum: Troubleshooting
Topic: Problems installing node-red
Replies: 3
Views: 68

Re: Problems installing node-red

Back to Square 1 AGAIN! After installing via Pete Scargils 'The Script' which takes about 2 hours to run due to all the bloody nodes it installs, attempting both the 'new' and 'old' node red installs. Exactly the same error on attempting to install a node that uses B/tooth BLE the bluetooth-hci-sock...
by PhatFil
Tue Feb 12, 2019 11:52 pm
Forum: Troubleshooting
Topic: Problems installing node-red
Replies: 3
Views: 68

Re: Problems installing node-red

Cheers @Andyroo, i will check both out.. i am currently attempting to replicate the system i have running by installing npm node.js and the nodes manually specifying the versions i am running successfully on the backup sd card, (backup sd card is old slow 8gb job, and its system wasnt working well w...
by PhatFil
Tue Feb 12, 2019 10:26 pm
Forum: Troubleshooting
Topic: Problems installing node-red
Replies: 3
Views: 68

Problems installing node-red

I want to set up a brand new clean minimal system to run headless on a raspberry pi. i have a full desktop raspbian system currently running on a Pi-zero-w hosting all i need but its also full of junk i have installed to try and forgotten about .. Im sure you all know.. I have downloaded and confirm...
by PhatFil
Tue Feb 12, 2019 4:50 pm
Forum: Other projects
Topic: Smart screen
Replies: 2
Views: 56

Re: Smart screen

for a faster response and perhaps easier development path, may i suggest you consider storing the pics on your pi linked to a corresponding rfid tag my the tags key code in a simple db table or even a text file.
by PhatFil
Mon Feb 11, 2019 10:42 pm
Forum: Other projects
Topic: Force sensor program problem
Replies: 8
Views: 211

Re: Force sensor program problem

I wonder about main difference between 'a = datetime.datetime(100,1,1,11,34,59) b = a + datetime.timedelta(0,3)' and just give 'time.sleep(3) ' The main difference is if you use the sleep function your code stops executing for the duration of the sleep period and will ignore any events that you may...
by PhatFil
Mon Feb 11, 2019 4:00 am
Forum: Other projects
Topic: Force sensor program problem
Replies: 8
Views: 211

Re: Force sensor program problem

you have most of the ammunition needed ;) for the simplest implementation to follow I would suggest checking out the basic arduino example sketches 'Blink' and Blink without delay' https://www.arduino.cc/en/Tutorial/Blink And https://www.arduino.cc/en/tutorial/BlinkWithoutDelay while its not python ...
by PhatFil
Sun Feb 10, 2019 1:02 am
Forum: Other projects
Topic: Force sensor program problem
Replies: 8
Views: 211

Re: Force sensor program problem

which method? using time elapsed since last video played ? or checking if the media file player is running or not? from what you have described i would suggest the time elapsed approach if your user has no control over pause /rewind etc of the vid which would nullify the use of time elapsed signific...
by PhatFil
Sat Feb 09, 2019 7:58 pm
Forum: General discussion
Topic: Store python data on internet and present it
Replies: 2
Views: 70

Re: Store python data on internet and present it

Lots of IOT(internet of things) platforms about, What you desribe is exactly what an IOT platform will provide. I have used both thingspeak and ubidots both of which host extensive learning resources including example projects. After the 'honeymoon' however my needs are best served with pi hosted se...
by PhatFil
Sat Feb 09, 2019 1:46 am
Forum: Troubleshooting
Topic: Can't ssh into pi
Replies: 2
Views: 67

Re: Can't ssh into pi

have you enabled SSH with either the raspi-config utility or by dropping an empty file named "SSH" into the boot partition of the pi sd card, (on a mac you will probably see all the partitions on your raspberry pi system sd card unlike a windows box where only the fat32 boot partition is visible (no...
by PhatFil
Sat Feb 09, 2019 1:42 am
Forum: General discussion
Topic: How to turn Pi into a wifi router/extender/access point?
Replies: 2
Views: 91

Re: How to turn Pi into a wifi router/extender/access point?

If you have on old router perhaps from an earlier isp contract, you may find that it can provide you with a hub/access point solution with only a few changes to its setup/config (disable dhcp and point it to your current router/gateway)
by PhatFil
Wed Feb 06, 2019 5:49 pm
Forum: Raspbian
Topic: [Solved] etcher validate failed on stretch images (2018-11-13 versions)
Replies: 5
Views: 173

Re: etcher validate failed on stretch images (2018-11-13 versions)

FYI I recently flashed 2 sd cards using the latest belina labeled version of etcher- No validation problems. I have had validation problems before however when using fake sandisk 8 and 16gb C10 sd cards. my fake cards also wrote at a significantly slower rate, if your sd card isnt writing @20mb/s or...
by PhatFil
Wed Feb 06, 2019 5:39 pm
Forum: Graphics, sound and multimedia
Topic: Need help to trigger alerts by RFID
Replies: 2
Views: 76

Re: Hi, I'm new. Please help!

Hi, Sounds like a fun project and very do-able with a pi and a few other bits n bobs. Just my thoughts... Python scripts would probably be the best way to control your outputs to leds etc based on inputs. https://thepihut.com/blogs/raspberry-pi-tutorials/27968772-turning-on-an-led-with-your-raspberr...
by PhatFil
Wed Feb 06, 2019 5:50 am
Forum: Beginners
Topic: Raspbian cutting corners making it unusable for me
Replies: 4
Views: 173

Re: Raspbian cutting corners making it unusable for me

I can understand the OP's frustration when reading about his boot woes. That does indeed sound like a SD card issue and and or low power psu i suspect that it has had a cascade of knock on effects which have also tarred the gui experience too. rectify the power/ SD card issues and perhaps the gui ex...
by PhatFil
Wed Feb 06, 2019 1:50 am
Forum: Troubleshooting
Topic: RPi GPIO Activates on Hard Shutdown/Power On
Replies: 8
Views: 220

Re: RPi GPIO Activates on Hard Shutdown/Power On

Have a quick google along the lines of "Pi Gpio startup or boot state" Most sbc's including the pi will boot up with some gpio pins in a known state either High or Low, while others will remain floating. the 'floaters' can be pulled to a high or Low state with a resistor, the others will need accomo...
by PhatFil
Tue Feb 05, 2019 4:48 pm
Forum: Raspbian
Topic: New HELP ideas
Replies: 18
Views: 449

Re: New HELP ideas

Kirk Fraser wrote:
Mon Feb 04, 2019 9:47 pm

I have mastered the Bible book Revelation enough to predict Revelation 8 happens in 2020 but it took years of truth seeking and God's inspiration to learn. Is it the same for RPi?
Alarm bells anyone??
by PhatFil
Tue Feb 05, 2019 4:18 pm
Forum: Other projects
Topic: Force sensor program problem
Replies: 8
Views: 211

Re: Force sensor program problem

my python is probably at a similar level to yours but i have had the advantage of using other languages. There are a number of approaches you can employ if the subprocess lib provides info on the pid (process id) of the process it kicks off with the Popen command you could use that to query if the p...
by PhatFil
Tue Feb 05, 2019 3:26 pm
Forum: Beginners
Topic: Battery pack
Replies: 5
Views: 195

Re: Battery pack

Yes, But if a single cell its output will be 3.4-4.2v depending on charge insufficient voltage for a pi without a booster circuit to provide 5V. If 2 x or more cells the voltage will be multiples of the single cell voltage and then require some step down circuitry to reduce the excess voltage.
by PhatFil
Tue Feb 05, 2019 3:09 pm
Forum: Automation, sensing and robotics
Topic: turn on desktop power supply
Replies: 6
Views: 225

Re: turn on desktop power supply

Perhaps using a smart switch/socket to plug the main a/c power feed into might be a much simpler and cheaper approach. and use significantly less power to maintain 24/7/365 than maintaining power to the PC psu all day/week/year. Also quieter with no fans running 24/7. select a switch you can reprogr...
by PhatFil
Tue Feb 05, 2019 12:50 am
Forum: Beginners
Topic: Multi output power source options
Replies: 5
Views: 161

Re: Multi output power source options

for a development and experimental work bench get a bench psu, but for finishing off a project you will probably have to judge each project on its own merits, h/w used and if mains or battery powered generally dictate the best psu option on a project by project basis.
by PhatFil
Mon Feb 04, 2019 8:56 pm
Forum: HATs and other add-ons
Topic: Official Raspberry Pi power supply -- adding power switch
Replies: 8
Views: 721

Re: Official Raspberry Pi power supply -- adding power switch

I too suspect this is a symptom of power backfeeding from the tv hdmi connection. If it were coming from the a/c switch i would replace the switch asap as a switch is intended to isolate power.
by PhatFil
Sun Feb 03, 2019 8:57 pm
Forum: Troubleshooting
Topic: Raspberry Pi 3B+ not turning on after shutdown.
Replies: 10
Views: 322

Re: Raspberry Pi 3B+ not turning on after shutdown.

get a new sd card asap, its certainly not a good indication if it fails after a single boot and correct shutdown.
by PhatFil
Sun Feb 03, 2019 8:36 pm
Forum: Python
Topic: if statements and raw input
Replies: 11
Views: 315

Re: if statements and raw input

by PhatFil
Sun Feb 03, 2019 3:15 pm
Forum: Off topic discussion
Topic: Why I love my PIs
Replies: 32
Views: 1068

Re: Why I love my PIs

IT guys tend to be quite conservative - they know a Windows tower works, they know the users know how to use it, and when things go wrong they know how to fix it quickly, even if that means spending money on a new tower. Shirley you mean Guys, (and Gals) with budgets and who know less about IT than...

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