Go to advanced search

by PhatFil
Wed Dec 04, 2019 11:42 pm
Forum: General discussion
Topic: Pi 4 Case Question
Replies: 3
Views: 171

Re: Pi 4 Case Question

the case or enclosure of all my diy projects is generally the hardest aspect to get right. 3dprinting has opened up both access to the design tools and designers via sites like thingiverse. and you can get jobs printed to order. it took me 5-10 minutes of watching a child orientated utube on tinkerc...
by PhatFil
Tue Dec 03, 2019 2:41 pm
Forum: Python
Topic: Help with TSL2591
Replies: 2
Views: 63

Re: Help with TSL2591

this should get you started with the light sensor, copy the code/example and get it working and then step through it and try to follow whats going on.. the penny may not drop instantly, have a coffee and return to something else and keep it on the back burner for a while.. https://learn.adafruit.com...
by PhatFil
Tue Dec 03, 2019 2:20 pm
Forum: Beginners
Topic: Power consumption: BT vs USB
Replies: 6
Views: 248

Re: Power consumption: BT vs USB

Bluetooth covers a number of protocols, afaik most devices that make and maintain a consistent connection during a session use the more power hungry aspects of Bluetooth. BLE the low power variant of bluetooth isnt used for connecting to devices for a maintained connection more of a connect communic...
by PhatFil
Mon Dec 02, 2019 4:11 pm
Forum: General discussion
Topic: Can this be done with a pi
Replies: 3
Views: 205

Re: Can this be done with a pi

Yes any Pi could do what you want. however there are alternative options which could easier and cheaper to implement. For example check out the stc1000p+ project over on github, its a reflash firmware solution to overwrite the stock firmware in the very common and dirt cheap stc1000 temperature cont...
by PhatFil
Sat Nov 30, 2019 9:51 pm
Forum: Automation, sensing and robotics
Topic: Barcode Scanner and Dispenser
Replies: 2
Views: 105

Re: Barcode Scanner and Dispenser

as suggested above python is a good scripting choice on a pi to stitch your system together. you should be able to fine example scripts accessing the output from a usb bar scanner, for the coin acceptor?? a search based on make/model may provide similar examples.. Start by getting the examples up an...
by PhatFil
Wed Nov 27, 2019 11:00 pm
Forum: Automation, sensing and robotics
Topic: Detecting an appliance is in use
Replies: 30
Views: 652

Re: Detecting an appliance is in use

if you go the route of smart plug with montioring, make sure the plug can handle the amperage of the device. most are only 10A loads. and of the 15A - I'm not so happy about the reviews - seems quite a few like to catch fire! - so now I need a smart fire detector also? will have to keep an eye on t...
by PhatFil
Mon Nov 25, 2019 6:40 pm
Forum: Automation, sensing and robotics
Topic: Detecting an appliance is in use
Replies: 30
Views: 652

Re: Detecting an appliance is in use

If supplied by mains electricity may i suggest a more out of the box solution, a £10-20 smart socket that monitors power usage can be reprogrammed with your own or a public project like Tasmota https://github.com/arendst/Tasmota/wiki.. Many smart devices use the same core h/w :) Any Adds that mentio...
by PhatFil
Fri Nov 22, 2019 7:49 pm
Forum: Automation, sensing and robotics
Topic: what is the Alexa to smart plug message path
Replies: 10
Views: 282

Re: what is the Alexa to smart plug message path

I did install some software that would decode the signals from my three channel wall plate. The software will not decode 300 MHz however. Maybe the tasmota software has more options. ?? think about it.. you have h/w tuned to receive signals at one frequency is it surprising it wont pick up signals ...
by PhatFil
Fri Nov 22, 2019 1:07 am
Forum: Automation, sensing and robotics
Topic: what is the Alexa to smart plug message path
Replies: 10
Views: 282

Re: what is the Alexa to smart plug message path

to paraphrase "I consider it unfortunate that you spent all that money before you posted" Granted when you buy a product like ring you do get a joined up solution Today. The diy approach would be to automate sending an email or sms message with a link to the live stream from the motioneyes server ho...
by PhatFil
Thu Nov 21, 2019 10:00 pm
Forum: Automation, sensing and robotics
Topic: what is the Alexa to smart plug message path
Replies: 10
Views: 282

Re: what is the Alexa to smart plug message path

wish you had posted a couple of hundred quid ago,, OUCH! for diy voice control and custom recorded replies https://www.youtube.com/watch?v=CAGQ8h8PKX4 for a camera devote a pi to motioneye perhaps? https://github.com/ccrisan/motioneye/wiki for door/window alarms, pir button controllers consider the ...
by PhatFil
Thu Nov 21, 2019 5:55 pm
Forum: Automation, sensing and robotics
Topic: what is the Alexa to smart plug message path
Replies: 10
Views: 282

Re: what is the Alexa to smart plug message path

#1 tasmota is targeted at esp8266/5 soc devices , an esp32 fork of the project was started but if it has been maintained or not needs looking up. to turn on a device with the mqtt Topic (ID) "Light-Switch" publish a cmnd/Light-Switch/Power1 ON, or cmnd/Light-Switch/Power1 TOGGLE mqtt Topic payload m...
by PhatFil
Thu Nov 21, 2019 4:45 am
Forum: Other projects
Topic: Remote GPIO Input
Replies: 8
Views: 338

Re: Remote GPIO Input

you might want to consider using one of the 2 pi puters to host a mqtt broker like mosquitto. then you can use mqtt to publish button press events triggered by your button station (looks like an IR remote btw..) http://www.steves-internet-guide.com/into-mqtt-python-client/ and if your lighting app i...
by PhatFil
Mon Nov 18, 2019 11:24 pm
Forum: General discussion
Topic: Pi zero w Ethernet storage
Replies: 3
Views: 131

Re: Pi zero w Ethernet storage

i think the pi-0-w wifi connection would be the main bottleneck rather than the usb-sata hdd/ssd interface.
by PhatFil
Mon Nov 18, 2019 5:40 am
Forum: Python
Topic: How to read an instance of a button click?
Replies: 4
Views: 155

Re: How to read an instance of a button click?

That depends..

Post your code ;) BUT!! Please do use the code tags in the editor menu

Code: Select all

so your code looks like this and retains its formatting which
     can
         be
             crucial sometimes
by PhatFil
Sun Nov 17, 2019 1:00 pm
Forum: Automation, sensing and robotics
Topic: 12v DC proximity detector for use on truck (2-3 feet range)
Replies: 12
Views: 361

Re: 12v DC proximity detector for use on truck (2-3 feet range)

If you are talking about the cheap Chinese 'radar' modules https://www.ebay.com/itm/RCWL-0516-Switch-Microwave-Radar-Sensor-Module-Induction-Human-Board-Detector-TR/352666551849?hash=item521c908629:g:HWEAAOSws3lc3ln8 , first they are not radar at all but sloppy 3ghz doppler detectors. Second they c...
by PhatFil
Sat Nov 16, 2019 2:55 am
Forum: Beginners
Topic: Very Basic Wiring Question
Replies: 8
Views: 344

Re: Very Basic Wiring Question

use the keyword "DUPONT" along with M/M, M/F, or F/F in your shopping searches for 10, 15, and 20 cm ribbon cables of jumper connecting wires. the male dupont ends will plug into breadboards and the female headers sometimes used on the Pi gpio header, and the female ends accept male ends and can fit...
by PhatFil
Sat Nov 16, 2019 2:19 am
Forum: Beginners
Topic: If I buy RASPBERRY PI 4 Model B - Kit 2 GB, is that all I need?
Replies: 26
Views: 727

Re: If I buy RASPBERRY PI 4 Model B - Kit 2 GB, is that all I need?

Thanks for the info. I understand few of the acronyms mentioned. It seems a lot of stuff for the small embedded project I was thinking of. I need a few days to consider if I want to go down this path, I may stick to the Arduino... Sorry not my intention to baffle or confuse.. SSH Secure SHell https...
by PhatFil
Fri Nov 15, 2019 3:36 pm
Forum: Beginners
Topic: Project advice
Replies: 2
Views: 107

Re: Project advice

If you want a tablet like interface use a tablet and point its browser in kiosk mode at your gui page/site hosted on the pi.
by PhatFil
Fri Nov 15, 2019 2:06 pm
Forum: Beginners
Topic: If I buy RASPBERRY PI 4 Model B - Kit 2 GB, is that all I need?
Replies: 26
Views: 727

Re: If I buy RASPBERRY PI 4 Model B - Kit 2 GB, is that all I need?

SSH and VNC were both mentioned earlier in this post, Has the OP rejected the idea of using an existing pc to take remote control of the pi cli via SSH or the Desktop environment over VNC??? In both cases the Pi once on the local network can be used headless without extra keyboards mice or monitors....
by PhatFil
Fri Nov 15, 2019 1:50 pm
Forum: Other projects
Topic: Remote GPIO Input
Replies: 8
Views: 338

Re: Remote GPIO Input

Remote Gpio is part of the gpiozero lib
https://gpiozero.readthedocs.io/en/stab ... _gpio.html

node red has a gui interface to similar operations
by PhatFil
Thu Nov 14, 2019 8:31 pm
Forum: Automation, sensing and robotics
Topic: 12v DC proximity detector for use on truck (2-3 feet range)
Replies: 12
Views: 361

Re: 12v DC proximity detector for use on truck (2-3 feet range)

testing and tweaking are going to answer a lot of the outstanding questions, HCSR04 modules have a couple of pots you can tweak to limit range of focus and sensitivity iirc you may need to do some juggling with 2 or more inputs and sensor direction to determine that warm objects are within your narr...
by PhatFil
Thu Nov 14, 2019 6:04 pm
Forum: Gentoo
Topic: No internet sites
Replies: 5
Views: 298

Re: No internet sites

sorry missed your post, though i see the big guns are now on board.. Cant ping anything?? here are my last straw clutches ;) Any Router limitations on wifi access set in error, many routers allow you to limit access to unknown (new) devices to the network. double check any ip addresses such as those...
by PhatFil
Thu Nov 14, 2019 5:47 pm
Forum: Beginners
Topic: Operating a 433mhz remote control with a Raspberry
Replies: 8
Views: 276

Re: Operating a 433mhz remote control with a Raspberry

Thanks for answering! If I understand correctly your point, I won't be able to operate this remote with a couple of soldering point (plus a breadboard and jumper cables I already own)? At first sight, it looks rather simpler than capturing and re-emitting codes that the remote's chip can already pr...
by PhatFil
Thu Nov 14, 2019 3:40 pm
Forum: Troubleshooting
Topic: Problem interfacing Nextion display with Raspberry Pi 4
Replies: 1
Views: 70

Re: Problem interfacing Nextion display with Raspberry Pi 4

Nextion touch screens a great idea that must have been implemented by a committee that met on friday afternoons.. I bought one and its a dust catcher, you need to download and include the nextion arduino libs too https://github.com/itead/ITEADLIB_Arduino_Nextion #include Nextion.h then iirc you need...
by PhatFil
Thu Nov 14, 2019 2:28 pm
Forum: Beginners
Topic: Operating a 433mhz remote control with a Raspberry
Replies: 8
Views: 276

Re: Operating a 433mhz remote control with a Raspberry

rather than hack the device, an alternative approach could be to invest a couple of quid or dollars in a pair of 433mhx rf Tx and Rx Pcb modules. https://www.googleadservices.com/pagead/aclk?sa=L&ai=DChcSEwj2ioLL8unlAhVNsO0KHXGUA3AYABARGgJkZw&ohost=www.google.com&cid=CAESQOD2Fj2VR3twbGkgjS0K469S4sbd...

Go to advanced search