I am trying to set up a simple video-call device for a senior that has absolutely no idea of technology.
The plan:
An old Laptop connected to a monitor and a USB keypad. The laptop boots up (win 7 or 10) and starts skype or zoom ( some form of Kiosk). The senior can only accept a call with on big green button. The senior can call people with a push of a button.
The Problem:
I could not find any way to make a call (zoom or skype... this would be widely accepted from other not very tech-friendly relatives) with just a key combination/ shortcut that does not include a mouse.
The solution so far (not the road I want to continue):
I made a video call device with a pi, an old monitor, just one button, and a jitsi-meet (browser)
my current setup does not enable the senior in question to actively make calls and is generally too unreliable
I am looking forward to someone pointing me in the right direction
Related
I have dataQ plugged into a bunch of circuits in the lab that I use to measure Voltage V. Suddenly, I tried to connect to the dataQ in my laptop for the usual testing, but the device did not show up in the "Windaq dashboard" software. The device shows up in the device manager as "COM3". I did some research and I found out that means that the device is in CDC mode and I need it to be in LibUSB mode for it to be detected. to do that the manual says to hold on to the control button after 5s from connecting to the computer until the LED light turns red.
My problem:
I pressed and was holding the button for 1 minute but it never went red. am I misunderstanding the problem ? Any help from experienced people is appreciated.
(Note: I am using DI-4108)
I got the answer from the company itself:
keep pressing the control button as fast as possible and after that press and hold it until the LED is red
I am a bit new here, English is not my native, so I am sorry for any possible misspelling.
I have a very odd problem - my Xiaomi Mi Surface Display 34" (XMMNTWQ34 model) monitor buttons act really strange - instead of calling the monitor OSD, pressing any of 4 present buttons tries to switch to another possible input source (this is even not their function!), but no luck: just 3 seconds of the black screen and it turns back to the initial image. Let me explain how I got into this.
I have a monitor named before, which has 4 input ports: 2 DP and 2 HDMI. There is a PC always connected to the monitor via the DP interface (DP1 to be exact). Today I tried to connect a second PC via HDMI to the HDMI1 port. It went totally good, I was able to switch between PCs using a monitor OSD. But I thought it was too long and complicated to press a dozen buttons on OSD just to change an input source, so started to google any other programmatical methods of doing such thing.
Some fact: there are no drivers for this monitor on the Internet (it actually works at full 3440x1440#144 Hz resolution/refresh rate via DP interface without any trouble, but Windows sees it as "Generic PnP Monitor", so I see no way to fix it without a relevant driver).
I have found that any VESA-compatible monitor has the 0x60 parameter, which means exactly "input source", so altering the value of this parameter switches the input source without the need to call an OSD. I have found that the possible values of this 0x60 parameter for my monitor provided by several utilities are: 0x0F, 0x10, 0x11, and 0x12. But setting any of these values got me no luck - the screen just flashed black and nothing more. Moreover, those utilities showed that the current value of the 0x60 parameter was 0x07 - described as "S-Video 1" input source, and it did not change at any made tries. But my monitor does not even have such input ports!
But I discovered a total disaster a bit later - when I tried to switch the input source via OSD, I was not able to call it - any of the 4 buttons on the monitor was causing a black flash and nothing more! So OSD is now totally unavailable! This is madness. I can't enter the OSD, I can't change the input source without turning off any one of 2 connected PCs, I can't do anything which is supposed to be made via OSD. Rebooting and reattaching of every possible thing has no effect - even with 2 PCs being connected to monitor and waiting to enter a BIOS password (no OS loaded whatsoever): pressing any button on the monitor causes only black flash and nothing more, no OSD called. I guess this is a strictly monitor firmware issue because the OSD worked well until yesterday.
I have absolutely no idea how to solve this, I googled this all day long, but no luck. System restore did not change anything. Please help. Thank you all very much.
Same issue after using ControlMyMonitor App. At the time being, i didn't found any solution to get the OSD back. And I didn't found any solution to factory reset the monitor, I don't know if it's possible.
I strongly discourage users to use any kind of VESA com application on this Xiaomi 34 monitor !
Now, the best solution in order to switch inputs, is to disconnect or shutdown one of the computer connected, ans it will switch automaticaly to the only one remaining. (Or use a VESA script...)
I am trying to set up a basic LAN two player game on UE4, I have been able to do the following:
Host a game
Search for games being hosted
Join the hosted game (partly)
I need help with the following:
Spawning the second players character.
Second player to control the second spawned character.
At the moment when my second game instance joins the hosted instance however the camera stays fixed in the starting spot with no spawned character to move. It has joined the hosted game because I can see the first player moving around from player two's screen.
The picture of the blueprints are below. Let me know if you need more info, thanks for the help!! :)
https://s30.postimg.org/opxn89pgh/2.png
https://s30.postimg.org/km19tiiw1/6.png
I found the error in the game mode. i needed to change default pawn class to thirdpersoncharactor.
I'm quite new to working with Arduino/GSM and have had problems getting basic HTTP functionality working. I am currently facing multiple problems - one being that the 3G shield I am working with (SIMCOM SIM5216A) does not seem to want to connect to a carrier! :(
However, the problem I would like to focus on for this question is that Phone Functionality - designated through the AT+CFUN command - does not seem to be maintained through power cycles. Additionally, sometimes after modifying the CFUN, the modem will run a soft reset.
Here is the command I have been using to modify the phone functionality of the modem:
AT+CFUN=1,0
I am under the impression that the second parameter should stop it from running a soft reset.
I have attempted to save the AT configuration by following advice in this question's accepted answer - here is the output from power on:
START
+STIN: 25
+STIN: 25
+CPIN: READY
SMS DONE
PB DONE
AT+CFUN=1,0
OK
AT&W
OK
However, whenever I next reset, I will get the following:
AT+CFUN?
+CFUN: 4
OK
So, my question is how can I save the CFUN configuration to be consistent between power cycles? (If you happen to be able to offer advice on why I can see medium-strength signal but cannot connect to an operator network, any advice would be welcome there too, however that is not the focus of this question)
With thanks,
BadDevH.
Exactly what that is saved with AT&W is a rather muddled, see this answer for details. However, regardless of that, the AT+CFUN command is controlling such a dynamic behaviour that I cannot imagine any manufacturer ever that has saved this with &W. Think more of CFUN more like setting a fixed cruise control speed while driving a car. There is no way the car will continue with the speed from last time when started.
For normal phones the default behaviour is value 1 - full functionality - because that is the very core functionality of what they do1, but for a GSM module shield, I am guessing that the default behaviour is set to no radio in order to save power, so it stays off until you need it at which point you need to explicitly turn it on.
1
And even in the case of no sim card present, it shall still be able to make emergency calls.
I have some old relays that controlls an hydraulic motor.
I want to control it with my Arduino. Is this possible?
The relays used are:
DIL 00 52 from klockner moeller.
this is the situation:
I have experience with the arduino but not that much about electrical schemas?
Is there someone that can help me?
Is this equipment functional now?
The part you have pictured looks like it is for an engine lathe, not a pump.
The amount of rust in the box and corrosion on the overloads and relay would make me think that it has run either outdoors, or in a corrosive environment for quite a while with the door open. Why would you run it with the door open?
Because you have to continually reset the overload and or adjust the timer, or tap on the contacts to get them to engage. Either way, this thing is a mess.
The relays you have shown will interface easily with your arduino, but I WOULD NOT replace what's in the cabinet with these.
The set up in this cabinet is for three phase power. The one on top is the main contactor, and the two side by side units are for reversing the motor. Something you don't want to do with a pump.
My advice to you is to find an electrician before going any further with the power end of this project.
it is possible but probably that relay won't fit the load.
You have to be sure to use relay that can sustain at least the same load and spike current (and voltage), or you many bad thing may happen, like melting togheder the relay contact or burn your house down.
i can't see the code on the relay in the second picture, neiter you had given the load information, so i can't help you more.