Archive for the ‘Hardware Interfacing’ Category
Posted by jpluimers on 2022/11/01
Want: [Wayback/Archive] SMLIGHT SLZB-06 – A Zigbee 3.0 to Ethernet, USB, and WiFi adapter with PoE support – CNX Software
Startup SMLIGHT has launched the SLZB-06 Zigbee 3.0 to Ethernet, USB, and WiFi adapter with PoE support that works out of the box with open-source software such as Home Assistant and Zigbee2MQTT.
The device combines Texas Instruments’ СС2652Р microcontroller for Zigbee with ESP32 for WiFi, data transfer to Ethernet or USB, and peripheral functions such as LEDs and a button.The design is complemented with Microchip LAN8720 for Ethernet.
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Posted in Development, ESP32, Ethernet, Hardware, Hardware Development, Hardware Interfacing, IoT Internet of Things, Matter, MQ Message Queueing/Queuing, MQTT, Network-and-equipment, PoE - Power over Ethernet, Power User, Software Development, USB, WiFi, Z-Wave, Zigbee | Leave a Comment »
Posted by jpluimers on 2022/10/12
I’ll be following this guideline (or maybe by now already have):
Zelfbouw meetstation voor meten vlieghinder.pdf (Google Drive)
This is what I needed:
If you do not have a Raspberry Pi, then you can get it from them as a package for EUR 115 (including case, preinstalled microSD-card, charger and WiFi adapter):[
Wayback/
Archive.is]
Raspberry Pi Zusatzkit zum Komplettpaket Lärm (with configuration manual at [
Wayback]
Anleitung Raspberry.pdf)
Documentation:
- [Wayback] Do it yourself
- Software versions:
- [Wayback/Archive.is] Low-Cost Technik
Betriebsspannung: 12V
Meßbereich: 30dB(A) … 100dB(A)
Ausgangsspannung: 0V … 2,5V
Der Micro-Controller muss innerhalb des Hauses montiert werden.
Er benötigt Strom (12V =, Stromversorgung im Lieferumfang enthalten).
Vom Micro-Controller aus geht es mit einem normalen seriellen Kabel zum PC/Raspberry.
- [Wayback/Archive.is] Anleitung zum Betrieb einer Fluglärm Messstation
- The above link has two expensive solutions (which are certified for official noise measurements in Germany), and this lower cost solution:
- [Wayback/Archive.is] AK Modul-Bus
- Materialkosten 185,00 € (Sensor und Micro-Controller mit Stromversorgung)
- Der Sensor muss außen am Haus angebracht werden, der Micro-Controller im Haus. Die max. Kabellänge beträgt 7m. Der Micro-Controller braucht eine externe Stromversorgung, d.h. es muss eine Steckdose in der Nähe sein.
- Sie brauchen einen alten PC oder einen Raspberry Pi.
Die Verbindung zwischen Micro-Controller und PC/Raspberry Pi besteht aus einem seriellen Verbindungskabel (max. Kabellänge 50m).
- Der PC/Raspberry Pi braucht einen Internetanschluss.
Je nachdem wie die Internet-Verbindung realisiert wird, muss in der Nähe des PC’s eine freie Netzwerkdose vorhanden sein.
- [Wayback/Archive.is] DFLD
Via:
Related:
–jeroen
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Posted by jpluimers on 2022/09/02
In het kader van “kunnen dingen bij ons nooit eens normaal gaan?” het korte antwoord: nee.
Voorbeeld:
Voor de migratie van XS4ALL naar KPN hadden diverse telefoondoorschakelingen in gebruik (met name vertraagd doorschakelen: individuele nummers in ons huishouden gingen vertraagd door naar de bijbehorende mobiele nummers).
Na de migratie waren die allemaal weg. Het duurde even voor we daarachter waren omdat sinds de corona-periode vrijwel altijd iemand thuis is.
Kort en goed: we kamen er dus achter toen er niemand thuis was en we een opmerking kregen onbereikbaar te zijn (door iemand die ons mobiele nummer niet had).
Herstellen was ingewikkelder dan bedacht, want als je deze voor de hand liggende stappen van XS4ALL en KPN volgt kom je met een kluitje in het riet terecht:
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Posted in Cable TV/Radio, Development, Hardware, Hardware Development, Hardware Interfacing, Home Audio/Video, Power User, Telephony, VoIP | Leave a Comment »
Posted by jpluimers on 2021/12/21
Since most phones still have better cameras than most laptops, this is on my list of things to try:
Android app: [Wayback/Archive] DroidCam – Webcam for PC – Apps on Google Play (there is also an iOS app, but I don’t use iOS devices)
Client software for Windows and Linux: [Wayback/Archive] Dev47Apps
Main Features:
– Chat using “DroidCam Webcam” on your computer, including Sound and Picture.
– Connect over WiFi or USB cable.
– Unlimited free usage at standard definition.
– Keep using your phone with DroidCam in background (Android).
– Simple, safe, efficient, and trusted by millions of people worldwide.
DroidCamX Pro Features:
– Switch to HD Mode for 720p/1080p high definition video.
– Camera controls: toggle light, enable continuous auto focus, zoom in/out.
– Rotate, Flip & Mirror the video to better match your setup.
– Adjust brightness, contrast, add video delay and adjust audio volume (Windows).
– USB-Only mode for extra privacy and security.
– Option to auto-mute phone calls.
– No Ads.
I am really curious how they did this on the software side: developing and signing drivers; low-latency communications protocol, etc.
Via: [Wayback/Archive] Apple deelt workaround die scherm verkleint voor MacBook Pro-notch-problemen – Computer – Nieuws – Tweakers
–jeroen
Posted in Development, Hardware Interfacing, Power User, USB, WebCam | Leave a Comment »
Posted by jpluimers on 2021/11/18
[Wayback/Archive.is] GitHub – JanDerogee/TeleJukebox: A project based on the concepts of the Wonderfoon and Arduinofoon which simplfies the design of the Wonderfoon keeping the most important music playback feature down to
a simple PCB in a small case where you plug the phone in
…
The completed project works very simple:
- Pick up the phone, you hear the “dial tone” MP3, Dial a number, you hear the MP3 0..9 playing (depending on the dialed number), When the song is over, you hear the “disconnected” MP3, You can dial another number and hear another song or hang up the phone.
- Some phones also have a button on the front. When you press this button, the phone randomly playes one of the songe 0..9 and when that song is over, it automatically plays a new song, randomly. This will allow the person on the phone to continuously listen to the music. This may be of help to those who can’t figure out how it works but love to hear the songs over and over again.
- You can configure the music folder from which the MP3s are played, you can use up to 10 different folders
- You can configure the volume of the device
- Configurations are done through the phone itself (dial 738 OR hold the button while picking up the handpiece), you hear a voice that guides you through a menu and all you need to do is dial in your settings value.
You can power this design through a USB port cable. This way the device can be fed using a simple mobilephone charger OR be connected to the PC. When connected to a PC, the TeleJukebox identifies itself like a USB-stick and you can easily modify the file without removing the card from the system. Meaning that you do no even need to open the case in order to change the collection of MP3 files. Keep in mind that when the device is in USB-stick mode, it cannot playback MP3 files meaning that in this mode it will not act like a TeleJukebox.
Music rights
Especially when using this in a professional environment. be sure the music that plays is rights free (there are music therapists for treating people with Alzheimer’s and dementia that can help you with that).
Steps, reasoning, and building instructions
A less in depth Dutch article (with 13 minute explaining video below) explaining most of the steps and all the reasoning is this multi-part one:
- [Wayback] .Build – Bouw een Wonderfoon – Bouw een Wonderfoon voor iemand anders – Achtergrond – Tweakers
It works with these and younger phones as long as they can do pulse-dialing:
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- [Wayback] .Build – Bouw een Wonderfoon – Wat is een Wonderfoon? – Achtergrond – Tweakers
The small regular and debug boxes under the PTT/KPN phone connector box:
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- [Wayback] .Build – Bouw een Wonderfoon – Een goedkopere variant – Achtergrond – Tweakers
- [Wayback] .Build – Bouw een Wonderfoon – Slopen is zonde – Achtergrond – Tweakers
Both boards with electronics soldered:
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The non-debug board with components to be soldered:
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- [Wayback] .Build – Bouw een Wonderfoon – T65 bewerken – Achtergrond – Tweakers
The small cleanup and modification steps (shorting the microphone) for the T65 phone:
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- [Wayback] .Build – Bouw een Wonderfoon – Solderen maar! – Achtergrond – Tweakers
Schematics:
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Shopping list:
– 1x Pcb of perf board (€ 1,01)
– 1x Arduino Pro Micro (€ 7,95)
– 1x DFPlayer mp3-speler(€ 0,73)
– 1x TIL111 optocoupler (€ 0,41)
– 2x Weerstand 4K7 Ohm (€ 0,16)
– 7x Weerstand 2K7 Ohm (€ 0,56)
– 1x Weerstand 560 Ohm (€ 0,08)
– 1x Elco 1000 µF 6.3 V (€ 0,23)
– 1x Condensator 330nF (€ 0,13)
– 1x Condensator 100nF (€ 0,05)
– 2x Led (€ 0,06)
– 1x USB, type B, pcb (€ 0,67)
– 1x Tactile switch (€ 0,09)
– 1x Pinheader, male, 6 breed (€ 0,03)
– 4x Jumper kabel, female (€ 1,95)
– 1x Micro sd-kaart (€ 2,50)
– 1x PTT-wandcontactdoos (€ 2,99)
– 1x Behuizing (€ 1,22)
Totaal € 20,82
Voor de compacte pcb kun je de switch, een led, een weerstand van 2k7 Ohm en de twee weerstanden van 4k7 Ohm weglaten.
- [Wayback] .Build – Bouw een Wonderfoon – Voor wie gaat hij worden? – Achtergrond – Tweakers
The inside of the non-debug box:
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Wonderfoon got more versatile
Note that the most recent Wonderfoon products got more versatile allowing more songs, warnings for taking pills, and ring-reminders based on morse code.
[Wayback] Home | Wonderfoon
. De Wonderfoon-Centrale
–jeroen
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Posted in Arduino, Arduino, Development, ESP32, ESP8266, ESP8266X, Hardware, Hardware Development, Hardware Interfacing, Raspberry Pi, Software Development | Leave a Comment »
Posted by jpluimers on 2021/10/13
[WayBack] Raspberry Pi Turn Tv On/Off CEC – Tim Leland (with some quote fixes) via [Archive.is] Brad Fitzpatrick on Twitter: “lol tear (from )… “:
Install cec-utils
Once everything is installed you should be able to control the tv using the command below:
- Turn tv on:
echo 'on 0' | cec-client -s -d 1
- Turn tv off:
echo 'standby 0' | cec-client -s -d 1
- Set active source:
echo 'as' | cec-client -s -d 1
- Tv status:
echo 'pow 0' | cec-client -s -d 1
Troubleshooting Tips:
- Make sure your tv supports cec and that it is enabled. Tv manufactures call CEC by different names so you may have to do some research depending on your brand.
- Make sure you are using a new hdmi cable that is at least HDMI 1.2a
Different names for HDMI CEC
- Samsung – Anynet+
- Sony – BRAVIA Link or BRAVIA Sync
- Sharp – Aquos Link
- Hitachi – HDMI-CEC
- AOC – E-link
- Pioneer – Kuro Link
- Toshiba – Regza Link or CE-Link
- Onkyo – RIHD (Remote Interactive over HDMI)
- LG – SimpLink
- Panasonic – VIERA Link or HDAVI Control or EZ-Sync
- Philips – EasyLink
- Mitsubishi – NetCommand for HDMI
- Runco International – RuncoLink
Credits: http://raspberrypi.stackexchange.com/questions/7054/cec-wake-up-command
Related:
–jeroen
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Posted in *nix, *nix-tools, Development, Hardware Development, Hardware Interfacing, HDMI, Power User, Raspberry Pi, Software Development | Leave a Comment »
Posted by jpluimers on 2021/07/05
By now it should be able to order them normally, as this link is from early 2019: [WayBack] New version Smart Citizen Kit available | Waag
An improved 2.1 version of the Smart Citizen Kit is now ready for pre-ordering.
…
What does the 2.1 version measure?
The Smart Citizen Kit focuses on the weather, sound, light and air quality. The following overview shows the different sensors in version 2.1:
- Temperature (°C) – Sensirion SHT31
- Relative humidity (% rh) – Sensirion SHT31
- Noise level (dBA) – Invensense ICS4342
- Ambient light (lx) – Rohm BH1721FVC
- Air pressure (barometer, kPa) – NXP MPL3115A2
- Equivalent carbon dioxide (CO2 in ppm) – AMS CCS811
- Volatile organic compounds (ppb) – AMS CCS811
- Particulate matter (PM1/2,5/10 in μg/m3) – Plantower PMS 5003
…
Our findings in 2014 showed that the housing can be an important factor by influencing the sensors; there must be sufficient air flow, but also a watertight environment. And the placement is important (not in full sun for example).
Some relevant links and information:
Via:
–jeroen
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Posted in Development, Hardware Interfacing, Power User, Software Development | Leave a Comment »
![USB-Seriell Breakout-Board [ADAPUSBCOM-BOB]](https://archive.md/9os1f/01bd7829f408405e5365108050f712c29ca71437.gif)
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The Wiert Corner - irregular stream of stuff 