Posted by jpluimers on 2021/12/16
So you do not have to do a tear-down yourself: [Wayback] BHACP021 Chime Pro (2nd Generation) Teardown Internal Photos EMC TEST REPORT Ring
Chime Pro (2nd Generation) Internal Photos details for FCC ID 2AEUPBHACP021 made by Ring LLC. Document Includes Internal Photos EMC TEST REPORT
–jeroen
Posted in Development, Hardware Development, IoT Internet of Things, Network-and-equipment, Power User, Ring Doorbell/Chime (Amazon) | Leave a Comment »
Posted by jpluimers on 2021/12/13
I wanted access to a supposedly reset a MikroTik [WayBack] MikroTik CRS109-8G-1S-2HnD-IN, but the default credentials did not work. Somehow, keeping the reset button pushed for almost 20 seconds also did not reset+reboot it.
Luckily, the default PIN code was still 1234 ([WayBack] Manual:LCD TouchScreen: PIN code – MikroTik Wiki) so I could reset it ([WayBack] Manual:LCD TouchScreen: Reboot and Reset Configuration – MikroTik Wiki).
After this, I changed credentials and PIN, documented configuration and credentials, and ensured there is a back-up of that documentation available.
Note: fiddling with power and reset button might have worked, though it is odd the CRS109 documentation does not mention this. PIN code worked faster, so that’s what solved my issue first.
Related:
–jeroen
Posted in Hardware, Internet, MikroTik, Network-and-equipment, Power User, routers | Leave a Comment »
Posted by jpluimers on 2021/12/10
Only recently, I learned this works on just about any web-browser:
Ctrl-9 (macOS: Command-9) goes to LAST tabCtrl-1 (macOS: Command-1) goes go FIRST tabVia: [WayBack] Switch Between Tabs in Any Browser Using Shortcut Keys
For those keyboard ninjas who hate using the mouse, switching between tabs in your browser window is essential since most people probably have a bunch of tabs open at once. […]
…
If you want to go to a specific tab, you can press CTRL + N, where N is a number between 1 and 8. Unfortunately, you can’t go past 8, so if you have more than eight tabs, you’ll have to use a different keyboard shortcut or just click on it. CTRL + 9 will take you to the last tab, even if there are more than 8!
–jeroen
Posted in Chrome, Firefox, Internet Explorer, Keyboards and Keyboard Shortcuts, Opera, Power User, Safari, Web Browsers | Leave a Comment »
Posted by jpluimers on 2021/12/09
Cool tool that shows the asymmetric timing character of networks (usually because the send and receive paths are different): [Wayback] Splitting the ping
split-ping is a tool that can tell you what direction packet latency or loss is on. This is handy for network debugging and locating congestion.
The blog above explains the reason and details in great depth. Recommended reading.
Source code: [Archive.is] benjojo/sping: Split ping, see what direction the loss or latency is on
It is supposed to work better than [Wayback] cmds/isoping.cc – vendor/google/platform – Git at Google
* Like ping, but sends packets isochronously (equally spaced in time) in * each direction. By being clever, we can use the known timing of each * packet to determine, on a noisy network, which direction is dropping or * delaying packets and by how much. * * Also unlike ping, this requires a server (ie. another copy of this * program) to be running on the remote end.
Via:
–jeroen
Posted in Development, Go (golang), Network-and-equipment, Power User, Software Development | Leave a Comment »
Posted by jpluimers on 2021/12/01
Wanting a simple way on the console to convert a .pcap file to a .wav file, I searched for [Wayback] console convert pcap to wav – Google Search.
The reason is that [Wayback] fritzcap (written in Python) sometimes crashes while doing the conversion of a phone recording, so then only the .pcap file is available. I still want to figure this out, but given my health situation, I might not be able to in time.
Posted in *nix, *nix-tools, Audio, Development, ffmpeg, Fritz!, Fritz!Box, fritzcap, Hardware, Media, Network-and-equipment, Power User, Python, Scripting, Software Development, Wireshark | Leave a Comment »
Posted by jpluimers on 2021/11/26
[WayBack] 75 Funny Wifi Names (as I already run “Disconnected” and “Access Denied”).
Related blog posts:
–jeroen
Posted in Fun, Network-and-equipment, Power User, WiFi | Leave a Comment »
Posted by jpluimers on 2021/11/22
Oh cool: should arrive during the holiday season:
~500pc have been shipped to the backers in the USA and CanadaWe are planning to ship ALL pledges that don’t contain the case by Nov, 19.We are planning to ship ALL pledges that include the case by Dec, 3.Depending on your location it might take from a couple of days to a couple of weeks to actually receive the shipments.Important: we send a notification with a tracking number for every shipment. Please check your Spam folder from time to time.
Source: [Wayback/Archive] PiKVM v3 HAT by Maxim Devaev » Shipping in progress — Kickstarter
Documentation is at [Wayback/Archive] PiKVM v3 HAT guide – PiKVM Handbook via [Wayback/Archive] Thank you for buying PiKVM v3 HAT! showing that the ATX case bracket needs to be 3D-printed separately:
Posted in Hardware, KVM keyboard/video/mouse, PiKVM / Pi-KVM, Power User | 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.
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).
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:
It works with these and younger phones as long as they can do pulse-dialing:
The small regular and debug boxes under the PTT/KPN phone connector box:
Both boards with electronics soldered:
The non-debug board with components to be soldered:
The small cleanup and modification steps (shorting the microphone) for the T65 phone:
Schematics:
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 € 20,82Voor de compacte pcb kun je de switch, een led, een weerstand van 2k7 Ohm en de twee weerstanden van 4k7 Ohm weglaten.
The inside of the non-debug box:
Note that the most recent Wonderfoon products got more versatile allowing more songs, warnings for taking pills, and ring-reminders based on morse code.
. De Wonderfoon-Centrale
–jeroen
Posted in Arduino, Arduino, Development, ESP32, ESP8266, ESP8266X, Hardware, Hardware Development, Hardware Interfacing, Raspberry Pi, Software Development | Leave a Comment »
Posted by jpluimers on 2021/11/12
Wireguard seems more light-weignt and secure than OpenVPN and IPsec. So I’m anxious to know how it is supposed to work for road warriors that often depend on receiving DHCP addresses into the network of the VPN server.
Some links that hopefully get me started to install a Wireguard VPN server and provide services to road warrior clients.
First the Twitter thread that got me investigating:
Then some links I found:
–jeroen
Posted in Hardware, Network-and-equipment, Power User, Tailscale, VPN, Wireguard | Leave a Comment »
Posted by jpluimers on 2021/11/02
Some links in case I ever need to jail-break a Mikrotik device:
–jeroen
Posted in Development, Internet, MikroTik, Power User, routers, Software Development | Leave a Comment »
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The Wiert Corner - irregular stream of stuff 