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Here I have a function that's called within a while loop. I'm pretty sure the code could be optimised with a switch statement but I just can't figure it out? Please help me tidy this code.

I'm new to coding using the ConsoleApp so I was just making a basic program that records your keys, which I was later going to use to create a GUI, navigated via arrow keys.

All but the last else statements were made for a specific key such as Escape, Enter and Spacebar. This is because these special keys along with many others are not recognised within 'KeyChar'. All numbers and letters fall under 'KeyChar'.

How can i set min and max values so the model only predicts Y output between them?

I ran into a situation where I am generating random data packets to be transmitted over the uart of a Raspberry PI 3b+ with the Raspbian OS. I found that after 240 or so calls to rand() that an extra character is being generated in my data packet that could possible cause a 1 byte buffer overrun. So if the data length of my packet is 48 bytes, 49 bytes will be seen on the wire by the receiving devices but not by the transmitting device. I have verified that 1 extra byte is being sent on the wire via memory analysis on my receiving device.

Has anyone run into a situation where if the write() syscall is interrupted while writing to the /dev/serial0 device socket, the raspberry pi will send an incorrect byte?

My best guess is that when the pseudorandom number pool in Linux is being refreshed via the kernel during that system call. When I transmit an array of data of 48 bytes of fixed data, I don't get that spurious byte transmission, but I get that spurious byte if I auto generate .

The program I wrote has 2 pthreads. One for generating the packets and another for transmitting them. The transmitting thread at t=0 sleeps automatically because there is no data to send. The data generating thread will wake up the transmitting thread after 4 packets have been produced. I can regularly recreate this issue even if I sleep my transmitting thread for 1s after every transmission.

I tried to cut down on the unused code, but its still over 300 lines. It was a regular issue now its playing cat & mouse with me.

I am having trouble figuring out how to disable then re-enable (upon a triggering event) the hw (esp32-hal-timer) timer from the esp-arduino library, here for a stepper motor controller application with my esp32 development board. It will count down and trigger the ISR as desired as many times as I want, but when I disable it (so that the ISR is not unnecessarily called), it will not start when I try to start it again. The weird thing is that it is started the same way it was the first time, so I'm not sure if it is an issue with my code or the way that that particular library handles garbage collection. This is also my first time trying to work with interrupts at all. My code is below.

To avoid having to wade through too much, the general process is to initialize the timer (called motorTimer) in the setup method, then connect to wifi, within the callback method for mqtt any message with the payload of an integer will trigger the 'moveTo' method in the motor.h class, and then the update method in that same class will be triggered when the ISR timer is triggered. The timer will then change its time with each iteration, for acceleration compensation. This works great, until it comes time to kill the timer and then restart it later - then the ISR is not called at all, like the timer wasn't stopped properly. And that is where my issue lies.

I have a map fragment that has expand and collapse functionality. So when I expand the map I would like to hide the LinearLayout and when I collapse I wanna show that layout.

But the is setVisibility(View.INVISIBLE); not working. When I was debugging the app I can see that compiler reading that line but still not working.

Here is my XML file

I am having an issue when trying to train my model in Keras 2.0.8, Python 3.6.1, and a Tensorflow Backend.

Error Message: Error when checking target: expected dense_2 to have shape (9,) but got array with shape (30,) I am providing the shape of the input as well.