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by gulliverrr
Wed May 08, 2019 4:32 pm
Forum: Automation, sensing and robotics
Topic: DIY open source smart thermostat
Replies: 17
Views: 22781

Re: DIY open source smart thermostat

As Telegea seems dead I'm living this here for anyone in the future looking for a similar solution. https://www.crowdsupply.com/img/bb65/numbered-boarddiagram_png_project-body.jpg It's called HestiaPi Touch and runs OpenHAB2 on RaspberryPi with a touchscreen in a 3D printed case. https://hestiapi.co...
by gulliverrr
Wed May 08, 2019 4:11 pm
Forum: Automation, sensing and robotics
Topic: HestiaPi Touch - A Pi based Open Smart Thermostat for your home
Replies: 0
Views: 151

HestiaPi Touch - A Pi based Open Smart Thermostat for your home

https://www.crowdsupply.com/img/bb65/numbered-boarddiagram_png_project-body.jpg I am George, the designer and developer of HestiaPi, an open source open hardware smart thermostat for your home. It runs OpenHAB2 on RaspberryPi with a touchscreen in a 3D printed case. We would like to hear your feedb...
by gulliverrr
Sat Feb 02, 2019 2:28 pm
Forum: Troubleshooting
Topic: Got a new Asus (DSL-AC52U) router and Pi W does not connect anymore
Replies: 2
Views: 142

Re: Got a new Asus (DSL-AC52U) router and Pi W does not connect anymore

Thought of that and tried either alone and both together. Nothing changed. I am now on 2.4 only. FYI cat /etc/wpa_supplicant/wpa_supplicant.conf ctrl_interface=DIR=/var/run/wpa_supplicant GROUP=netdev update_config=1 network={ ssid="MYSSID" psk="xxx" # scan_ssid=1 } I have also tried with and withou...
by gulliverrr
Sat Feb 02, 2019 2:12 pm
Forum: Troubleshooting
Topic: Got a new Asus (DSL-AC52U) router and Pi W does not connect anymore
Replies: 2
Views: 142

Got a new Asus (DSL-AC52U) router and Pi W does not connect anymore

I have a few headless Pi 3 B+ and a few headless Pi W that all connect to my home WiFi with no problem. They all have the same image (2018-06-27-raspbian-stretch.img) and some times even the SD cards are swapped between 3B+ and W. I recently upgraded my router to Asus DSL-AC52U. Removed the old one,...
by gulliverrr
Tue Aug 14, 2018 4:42 pm
Forum: Advanced users
Topic: Switching 24V - 220V AC with Triac and Opto (Schematic)
Replies: 4
Views: 667

Re: Switching 24V - 220V AC with Triac and Opto (Schematic)

OPTO22 MP120D4 supports up to 2A and this makes a great difference in the price (and size, although it isn't huge either).
If I set the current to as low as 0.5A I get results for 3-4 USD.
Will keep OPTO22 MP120D4 in mind for future projects. Thanks!
by gulliverrr
Mon Aug 13, 2018 9:38 pm
Forum: Advanced users
Topic: Switching 24V - 220V AC with Triac and Opto (Schematic)
Replies: 4
Views: 667

Re: Switching 24V - 220V AC with Triac and Opto (Schematic)

No :)
I was not aware (of small size SSRs). Another friend pointed to the right direction too.
Thank you!
by gulliverrr
Thu Aug 09, 2018 3:34 pm
Forum: Advanced users
Topic: Switching 24V - 220V AC with Triac and Opto (Schematic)
Replies: 4
Views: 667

Switching 24V - 220V AC with Triac and Opto (Schematic)

I am designing an interface for Raspberry to switch AC voltages from 24V AC up to 220V AC. Simple ON/OFF, nothing fancy. Current will not exceed 0.5A. MOC3063 is used to drive a BT134 like below: https://i.imgur.com/j2feM8Zl.png https://imgur.com/j2feM8Z Would that work? I plan on not using any heat...
by gulliverrr
Fri Jul 14, 2017 9:13 pm
Forum: Networking and servers
Topic: headless wifi setup: easiest approach?
Replies: 24
Views: 15480

Re: headless wifi setup: easiest approach?

Does anyone have a solution that works with recent Raspbians as above solution does not work anymore?
by gulliverrr
Sun Jan 22, 2017 9:37 pm
Forum: Troubleshooting
Topic: LCD Touch rotate issue on ADS7846 for Jessie Lite with RPi0
Replies: 2
Views: 1281

Re: LCD Touch rotate issue on ADS7846 for Jessie Lite with R

Thanks davidcoton!
Kinda did. Slightly different screen/driver but same fix, works here too! I posted there my changes for anyone interested in ADS7846.
by gulliverrr
Sun Jan 22, 2017 9:35 pm
Forum: Troubleshooting
Topic: touchscreen inversion stopped working PIXEL
Replies: 46
Views: 25685

Re: touchscreen inversion stopped working PIXEL

Worked for me for slightly altered as I have ADS7846. My 2 cents: 1. If you are via SSH, xinput list does not work. Run it like that instead DISPLAY=:0.0 xinput list 2. If the above command reports "ADS7846" instead of "FT5406" run this command DISPLAY=:0.0 xinput --set-prop 'ADS7846 Touchscreen' 'C...
by gulliverrr
Sun Jan 22, 2017 4:54 pm
Forum: Troubleshooting
Topic: LCD Touch rotate issue on ADS7846 for Jessie Lite with RPi0
Replies: 2
Views: 1281

LCD Touch rotate issue on ADS7846 for Jessie Lite with RPi0

Hello! For better performance I have to use Jessie Lite with RPi Zero but I also need a Touch LCD attached. The LCD is working fine with the correct rotation but the touch functionality is rotated 90' counterclockwise, so if I slide my finger UP pointer slides LEFT. I have tried too many methods, no...
by gulliverrr
Sat Mar 05, 2016 1:02 am
Forum: Raspbian
Topic: Run script on first boot only
Replies: 2
Views: 3534

Run script on first boot only

Hello and congrats on the 4th year of this great toy! I need to be running a shell script as root on the first boot only automatically without having to logo on to RasPi to run it manually. It is a script that expands the partitions of my SD card to cover the whole area. What is the best method to d...
by gulliverrr
Tue Apr 14, 2015 11:33 am
Forum: Automation, sensing and robotics
Topic: Wifi Internet Boiler
Replies: 66
Views: 19660

Re: Wifi Internet Boiler

There is a small PCB that fits on the Raspberry Pi and controls the relays and the buttons. You will need to do the wiring yourself or get a professional electrician if you are not sure. I will PM you with the info
by gulliverrr
Fri Feb 27, 2015 11:58 pm
Forum: Automation, sensing and robotics
Topic: Raspi Nest: My raspbery pi learning thermostat
Replies: 36
Views: 94066

Re: Raspi Nest: My raspbery pi learning thermostat

Congrats guys!!! We have done something similar but with a less pretty LCD :) Its called HestiaPi and it is also open source and based on a Pi controlling independently heating and hot water. Temperature is read with a DS18B20 and can be connected via WiFi and/or wired to your network or the Interne...
by gulliverrr
Sun Nov 02, 2014 6:39 pm
Forum: Automation, sensing and robotics
Topic: Wifi Internet Boiler
Replies: 66
Views: 19660

Re: Wifi Internet Boiler

What does it do exactly? What do you see on the LCD? What do you see from the terminal?
by gulliverrr
Tue Sep 02, 2014 2:48 pm
Forum: Automation, sensing and robotics
Topic: Wifi Internet Boiler
Replies: 66
Views: 19660

Re: Wifi Internet Boiler

Hi,
does this mean that it works ok in RasPi Model A?
by gulliverrr
Thu May 09, 2013 10:14 pm
Forum: Java
Topic: Broken compilation of good-old code from Rev1 boards to Rev2
Replies: 0
Views: 830

Broken compilation of good-old code from Rev1 boards to Rev2

Hi folks! I had some java code compiling fine in Rev1 boards with oracle jdk in softfloat debian. I now got Rev2 boards and is driving me crazy giving me loads of errors like below ./uk/co/jaynne/gpio/GpioControlPi4J.java:9: error: cannot find symbol import com.pi4j.io.gpio.event.GpioListener; ^ sym...
by gulliverrr
Thu May 09, 2013 10:02 pm
Forum: Troubleshooting
Topic: 1 of 3 rpi won't read same SD card
Replies: 8
Views: 3582

Re: 1 of 3 rpi won't read same SD card

I had a similar problem as I had some cards prepared for older RasPis (Rev 1 or early Rev 2) that didn't work in all 5 new Rev 2 RasPis I got last month. Exactly same diagnosis as yours! In order to understand the difference, check if the "faulty" Raspi has Hynnix (in some funny writing) written on ...
by gulliverrr
Mon Apr 01, 2013 9:24 pm
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

I dont have 2 PSUs. The LCD is powered by the RasPis power via the GPIO header. I believe it is the multisocket although it is a fairly proper one by Legrand. I suspect this as I tried in another room in my house with a different multisocket and the error is gone. The suspicious one also holds my de...
by gulliverrr
Sun Mar 31, 2013 10:40 am
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

The magic a little ceramic 100n cap can do! thechpaul it worked! Thank you so much ;) For the record obcd I could reproduce the error with a simple C8 cable like this one: http://cdn.euroffice.com/eo/item/AAC319/0-Large-0.jpg with nothing on the other end! Weird huh!? Also the power usb cable has no...
by gulliverrr
Sun Mar 31, 2013 4:08 am
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

Thanks techpaul! Will try the caps and grounding the spare GNDs too. Didn't try that. Although Im not sure if RasPi Rev1 boards (mine) have spare GNDs on the unused pins as the Rev2 does. The wiring is as neat as possible. Yes it is something like a cobbler I made myself with a ribbon to get all pin...
by gulliverrr
Sun Mar 31, 2013 12:02 am
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

Here's my update: 1. Tried an adafruit python script to display a clock on the LCD. Tried my plugging test and gibberish appeared. So my code is ruled out 2. Tried another (Rev2 - my original error was on a Rev1) RasPi board. Error reproducible. So my board is ruled out 3. Tried another USB psu. Err...
by gulliverrr
Fri Mar 29, 2013 1:31 am
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

I just want to confirm that I tried the lab power supply and the bug is still reproducible, so its not the power supply causing it :( Is there any I2C initialisation function I could be safely calling often enough without clearing the text so that I could recover in the unfortunate event if I dont f...
by gulliverrr
Fri Mar 29, 2013 12:40 am
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

Re: I2C strange interference by mains

Check for what? What "symptom" of the cable could give anyone a hint towards any assumption?
by gulliverrr
Thu Mar 28, 2013 11:45 pm
Forum: Troubleshooting
Topic: I2C strange interference by mains
Replies: 18
Views: 3472

I2C strange interference by mains

Hello Pi'ers, I have a wheezy setup with a java application talking to an LCD screen (2x16 LED) over I2C. The applications monitors 2 buttons (GPIO 17 & 24 - normally HIGH) and controls 2 LEDs (from GPIO 14 & 15 straight to GND without -incorrectly- a resistor). I have noticed that sometimes after l...

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