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by PhatFil
Sat Mar 14, 2020 6:14 pm
Forum: Beginners
Topic: Rpi zero w not connecting to Wifi Router
Replies: 11
Views: 453

Re: Rpi zero w not connecting to Wifi Router

It wouldnt, i overlooked the 3A success in the OP . :oops:
by PhatFil
Sat Mar 14, 2020 1:22 pm
Forum: Beginners
Topic: Rpi zero w not connecting to Wifi Router
Replies: 11
Views: 453

Re: Rpi zero w not connecting to Wifi Router

if using a windows computer to create the wpa_supplicant.conf file iirc the Notepad editor can use incompatible eol or eof chars that impair the pi reading it. Try using an editor like notepad++ instead to write the file and it should be ok.. cat /etc/wpa_supplicant/wpa_supplicant.conf ctrl_interfac...
by PhatFil
Sat Mar 14, 2020 1:14 pm
Forum: Beginners
Topic: Problem with USB Hub on a Pi Zero
Replies: 6
Views: 283

Re: Problem with USB Hub on a Pi Zero

its a known issue.. viewtopic.php?t=189921

as for the hub to use to avoid the problem? No Offence intended.. You will probably have the best results using a branded hub that conforms to standards rather than a cheaper unbranded option
by PhatFil
Thu Mar 12, 2020 9:48 pm
Forum: Français
Topic: pirate audio
Replies: 4
Views: 332

Re: pirate audio

Google tells me its a pi audio product. https://shop.pimoroni.com/products/pira ... o-line-out

and its s/w is hosted on github. https://github.com/pimoroni/pirate-audio

Perhaps the OP could check for any open issues that mirror their experience? and if not perhaps open a new one?
by PhatFil
Thu Mar 12, 2020 3:58 am
Forum: General discussion
Topic: Control GPIO with screensaver
Replies: 1
Views: 128

Re: Control GPIO with screensaver

so your using the system desktop to provide the screensaver? for a vending machine handling real money in a school? look at writing your own or embelishing an open source example screensaver and include the gpio control you want. http://www.dis.uniroma1.it/~liberato/screensaver/ If not just add the ...
by PhatFil
Wed Mar 11, 2020 4:53 pm
Forum: Troubleshooting
Topic: Pi stops running, why?
Replies: 8
Views: 301

Re: Pi stops running, why?

to filter the logs you look at from the command line you can use the grep tool to search for key messages like :

Code: Select all

$ cat /var/log/syslog | grep "error"
which will filter only entries containing the word error .
by PhatFil
Wed Mar 11, 2020 4:29 pm
Forum: Beginners
Topic: Im looking for raspberry pi4 power button options.
Replies: 7
Views: 591

Re: Im looking for raspberry pi4 power button options.

HaM_ wrote:
Wed Mar 11, 2020 3:04 pm
unit will be in a closet thingy.

If a ventilated closet thingy ignore this..

?? This might be a problem, a well ventilated pi case with a fan in an enclosed space will just end up pulling back in the hot air it expunged ..
by PhatFil
Wed Mar 11, 2020 4:12 pm
Forum: General programming discussion
Topic: Cant do my homework..
Replies: 5
Views: 483

Re: Cant do my homework..

btw I have tried to use python scripts to handle the ble sensor polling and publish mqtt data payloads and the node-red/Xiaomi node method is the most successful and error free approach. my attempts to follow and impliment projects like https://github.com/ThomDietrich/miflora-mqtt-daemon result in a...
by PhatFil
Wed Mar 11, 2020 3:59 pm
Forum: General programming discussion
Topic: Cant do my homework..
Replies: 5
Views: 483

Re: Cant do my homework..

the sensors i am using are Xiaomi-Ble Temperature/humidity sensors and Xiaomi Miflora Plant pot sensors. selected due to cost and ease of use with long battery life. https://www.aliexpress.com/item/4000115888996.html?spm=a2g0o.productlist.0.0.1351756d1UmjQA&algo_pvid=713fa3d5-bfe1-4a50-99c5-fed91260...
by PhatFil
Wed Mar 11, 2020 2:47 pm
Forum: General programming discussion
Topic: Cant do my homework..
Replies: 5
Views: 483

Cant do my homework..

Self assigned homework .. Maths.. -ish. I want to gather as much sensor data as i can from as many sensors as i can. The sensors and mechanisms for reading them dictate limitations. Successful Sensor reading is mutually exclusive, attempts to read 2 or more sensors concurrently will result in data l...
by PhatFil
Wed Mar 11, 2020 1:58 pm
Forum: Beginners
Topic: Im looking for raspberry pi4 power button options.
Replies: 7
Views: 591

Re: Im looking for raspberry pi4 power button options.

other than using dupont connectors to attach wires to the gpio header for fan and button enhancements you can solder the wires to the underside of the pi board gpio header. easier than you may think soldering is 90% practice and 10% confidence.. the single wire dupont socket connectors are less secu...
by PhatFil
Thu Mar 05, 2020 12:55 am
Forum: For sale
Topic: Aluminum case for Raspberry Pi 4
Replies: 6
Views: 2182

Re: Aluminum case for Raspberry Pi 4

Really neat looking, I can only assume that the cost reflects the engineering employed to contain a fierce fresh water fish to stop the users from damaging the sd card. Go Guard Carps.. Aluminum Micro SD Card protection carp to protect the Micro SD from the user; No wonder all my fake sd cards faile...
by PhatFil
Thu Mar 05, 2020 12:39 am
Forum: Beginners
Topic: Multiple i2c usages
Replies: 1
Views: 113

Re: Multiple i2c usages

may i suggest you check out this great little project that uses off the shelf plant pot sensors that collect data and advertise it via bluetooth ble and can consequently run for ages off a small coin cell.. https://github.com/ThomDietrich/miflora-mqtt-daemon the circa $10 per sensor cost isnt that e...
by PhatFil
Wed Mar 04, 2020 4:04 pm
Forum: C/C++
Topic: How do I send digital/binary info over wifi?
Replies: 7
Views: 507

Re: How do I send digital/binary info over wifi?

Depends on where abouts you want to focus your energies, I would opt for Mqtt as suggested above . https://github.com/eclipse/paho.mqtt.c
and https://github.com/knolleary/pubsubclient,
by PhatFil
Wed Mar 04, 2020 12:50 pm
Forum: Camera board
Topic: Flexible camera cable for pi Zero?
Replies: 3
Views: 310

Re: Flexible camera cable for pi Zero?

Image
mine is very flexible, folds double when fitting inside the official pi-0 case
by PhatFil
Wed Mar 04, 2020 12:36 am
Forum: Beginners
Topic: Small quiet fan for Labists case
Replies: 11
Views: 619

Re: Small quiet fan for Labists case

Noctua brand fans are the goto choice for 3d printer upgrades

but they are not cheap https://www.google.com/aclk?sa=L&ai=DC ... BBF&adurl=
by PhatFil
Wed Mar 04, 2020 12:01 am
Forum: Camera board
Topic: Flexible camera cable for pi Zero?
Replies: 3
Views: 310

Re: Flexible camera cable for pi Zero?

by PhatFil
Tue Mar 03, 2020 11:27 pm
Forum: General discussion
Topic: Rasp Berry Pi, Pill Dispenser
Replies: 6
Views: 343

Re: Rasp Berry Pi, Pill Dispenser

+1 for the little 7day pill boxes and (in my case) a dedicated alarm clock.. even with them i will occasionally shake a box at the end of a week and discover a set of forgotten pills arghh!! OP fun sounding starter project as long as the above caveats are taken into account - go for it.. for the boa...
by PhatFil
Tue Mar 03, 2020 2:18 pm
Forum: Other projects
Topic: Adressable RGB connected to GPIO pins on RPI4
Replies: 16
Views: 777

Re: Adressable RGB connected to GPIO pins on RPI4

having used ws2812 leds with 3.3v logic level control for lengths of 5m (300x leds) i would suggest trying your circuits and test code without a logic level converter to begin with as it may be totally unnecessary.
by PhatFil
Mon Mar 02, 2020 7:40 pm
Forum: Off topic discussion
Topic: Launching a Pi based product...
Replies: 3
Views: 930

Re: Launching a Pi based product...

Good luck. It might be easiest to release the project under an open source license free for any one to replicate and open an ebay or amazon store to sell required components and kit bundles. Perhaps hold back a couple of enhanced features hinting on development opportunities Then if it becomes popul...
by PhatFil
Mon Mar 02, 2020 3:38 pm
Forum: Other projects
Topic: Adressable RGB connected to GPIO pins on RPI4
Replies: 16
Views: 777

Re: Adressable RGB connected to GPIO pins on RPI4

look up the data sheet for your leds to check how much power they can draw, iirc each ws2812 led has 3 x 20 ma leds 1 x red 1 x blue and 1 x green so if similar your strip of 9x could draw upto 9 x 60ma at full power 540ma which should be ok for, you to draw from the +5v gpio header, and in my limit...
by PhatFil
Mon Mar 02, 2020 3:41 am
Forum: Python
Topic: Need help with Extracting data from Python script
Replies: 1
Views: 147

Re: Need help with Extracting data from Python script

excel can open remote data sources like odbc compliant databases so if your system uses one already ? If not you could use the good ol comma separated file CSV Use the import data features to open your remote data file on the pi. On the excel side you will probably need a vba script to refresh the s...
by PhatFil
Sat Feb 29, 2020 10:07 pm
Forum: Beginners
Topic: Nodemcu slave to Raspberry pi (via wifi)
Replies: 2
Views: 112

Re: Nodemcu slave to Raspberry pi (via wifi)

I use tasmota firmware on many esp826x devices. Its very handy for interfacing with all sorts of i/o and sensors and hosts its own gui web interface. You just configure whats connected to what gpio pin via the web gui and it will publish all its metrics via mqtt (a broker service you can host on a p...
by PhatFil
Sat Feb 29, 2020 2:08 am
Forum: Interfacing (DSI, CSI, I2C, etc.)
Topic: Stepping down 12V 2A to use on GPIO input
Replies: 2
Views: 234

Re: Stepping down 12V 2A to use on GPIO input

simplest solution afaik would be to use light sensitive resistors, if you can use putty or epoxy to mask off ambient light so the LDR s can only react to your specific light sources it should be pretty straight forward to monitor 10x devices 1st result for a search "LDR Pi circuit" https://pimylifeu...

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