Which IC Component is this? - components

I seem to have burned out this chip on my Hobby King ESC (See picture). I am not able to read the component Part number. The ESC is no longer available to buy. Could someone please name the part number so that I may fix it? Thanks in advance.
HobbyKing 40A (2~6S) ESC w/UBEC 4A

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can I be keylogged at pc lock-in?

I was opening my pc with a password and noticed that the letters of the keystrokes did not appear in the password-field. It made me suspicious if a key-logger 'snatched' my password.
Opening the pc with a password is a spine reaction, so I went back to check how much would be needed to miss a proper lock-in .. I'm sure enough to proceed to question you here.
Would I in the first place notice, if someone used a keylogger on me? Is letters not appearing in the text-field symptomatic for the use of a key-logger against me? If yes, do I have any chance of finding the key-logger to delete it from my pc?
I've written plenty of appropriate code (opengl + glfw) to suggest, that the keylogger would have to work as a service (added with administrator-credintials?) and be turned on at pc-start to do it's job, but I don't have a clue more than that.
letters of the keystrokes did not appear in the password-field
It could be a scenario; maybe the textbox was out of focus while you were trying to login. Because I beleive that keylogger won't hinder the keypress of a textbox.
According to my experience of getting hardware-input it would seem to be a slim case not to reveal it in a stelthy situation - you must be right.

Applesoft Basic, how to hide the flashing cursor?

I’ve finally decided to build a monthly budget program for an Apple //e, coming along nicely. Right now I’m using the AppleWin emulator.
Anyone know how to hide the cursor in Applesoft Basic? I was thinking of either hiding it using a Poke or change the cursor character to a blank space?
I know that VisiCalc does this, when you load the program, there is no flashing cursor until you begin editing. I want to do this same feature in my program.
Note: I don’t want to do it through the emulator as I will eventually move this to Apple hardware.
I found a solution for this here. Terminal control/Hiding the cursor.
I was able to hide the cursor using the WAIT command, then grab the next character with GET.
WAIT 49152, 128
GET I$
More examples here: Applesoft Basic Examples
VisiCalc is written in assembly language, and so is Applesoft BASIC - and so is the firmware routine that Applesoft calls to get a key while flashing the cursor. You can read the keyboard without flashing the cursor from Applesoft or assembly language, but you need to learn the underlying soft-switches used to do this.
Name Hex Decimal Negative
KBD $C000 49152 -16384
KBDSTRB $C010 49168 -16368
In summary, you read KBD to get the value of the last key pressed. Bit 8 of that value (the 'strobe') will be set if it's a new key - in which case you need to subtract 128 to get the key value. You then access KBDSTRB to clear the strobe bit of KBD. For more details I refer you to page 5 of the Apple II Reference Manual or page 12 of the Apple IIe Technical Reference Manual.
Another good book which talks about this and many other things is The New Apple II User's Guide.
Here's a simple example of how to use these soft-switches:
10 KEY = PEEK (-16384) : REM READ KEY
20 IF KEY >= 128 THEN PRINT PEEK (-16368) : REM CLEAR STROBE
30 GOTO 10
Finally, consider visiting Retrocomputing for these kinds of questions.
Original answer:
There is a undocumented way to do this on Apple IIe
POKE 2043, ASC(" ") + 128
More info: https://www.atarimagazines.com/compute/issue90/Feedback_Custom_Cursor.php
Update
As #Nick Westgate said. This works for Apple IIc and not for Apple IIe.
More info: https://github.com/AppleWin/AppleWin/issues/135

Codeacademy: Move to next lesson with keyboard

I know that when you want to enter your code, you can press command(or windows) + Enter. But after that, you have to click the arrow at the bottom of the screen to go forward. Does anyone know if there's a keyboard shortcut to get past this? I can't figure it out.
The reason I ask is I'm using an external keyboard, since the keys on my laptop are getting sticky. So I'm a good distance away from the track pad when I'm working. Thanks.
I don't found also this.
But i check a few card with lession and all the forward button have same id = id="discovery-next".
I think there is way to make a macro for using this ;P

Change Keyboard Mapping

Hello and thank you in advance,
I am wondering if there is a way to change the layout of my keyboard (software-wise).
The problem is that, on my laptop's keyboard, the Page Up and Page Down keys are combined with the Home and End keys respectively (i.e. to use Home, I have to use the command fn+PgUp/Home).
Is there a way for me to switch what my keyboard receives in Windows 8? If I press the PgUp/Home key I would like the Home command to be entered, and if I entered fn+PgUp/Home I would like the PgUp command to be entered.
I have tried googling for this using several different keywords, but haven't been able to find anything.
Any help is appreciated,
Zach
This is a duplicate question.
You can find an answer here:
https://superuser.com/questions/694465/remapping-a-keyboard-key-in-windows-8-1
Keep in mind this does require registry edits which can be dangerous and can lead to critical failures if not done correctly. Always create a restore point before making any registry edits.

How to simulate HOLDING a keystroke in Keyboard Maestro?

Using Keyboard Maestro 5, I want to be able to simulate holding a specific key for a specific amount of time for one of my macros. I am not sure if this is currently possible, and I have yet to find a work around. Any help would be appreciated in how this may be done.
An old post, but a common question about Keyboard Maestro.
Good news and bad news.
Bad news first:
The developer of Keyboard Maestro (currently version 7) says,
"No, Keyboard Maestro cannot press and hold any button or key."
Now the good news.
Another poster on that forum says:
Karabiner is perfect ... Define a key combo in Karabiner and map this to your KM macro.
Here is the link to that topic on the Keyboard Maestro forum.

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