Every time I upload the code this pops out as error and “language server is not running” this will also pops out, at last the code doesn’t execute and nothing prints on ili9341 tft display

I am working on code that reads from a keycard scanner. I am reading from 2 data pins and storing their value in an array once the pulse drops. The time between pulses is 1 mS. When i print out my array to the serial monitor I receive: �������������64888. I don’t want it to print these garbage characters because it wont let me transfeer this data over UART to my Raspberry Pi 5. Here is my code:

For this Arduino project, I am struggling to figure out what might be the solution to this problem and would appreciate your help. I am trying to achieve the following:

I am currently testing out my HMC 5883L sensor but there is a problem with my Arduino Uno , I unplugged the HMC 5883L sensor and my Arduino’s serial monitor kept on spilling out the same data which has the same heading and X , Y , Z position but when I plugged the sensor back to the correct port , the serial monitor stopped spilling out the data

I need some help with some Arduino IDE. I want to make a usb handbrake for my pc racing simulator using an old Logitech pedal that I had laying around which is basically a potentiometer. Now there is a tutorial by AM-Studio which I’ve followed, however the code has a big flaw as I was informed by another arduino user on ebay and also realised myself as i’m on my 4th arduino pro micro… From what I understand the code makes the arduino unrecognisable from windows after it is uploaded, therefore I’m not able to upload any other sketches onto it. I tried putting the code here but for some reason it wont allow me to. Here is the link to the creators github page: https://github.com/AM-STUDIO/Analog-E-Brake

So I’ve never used an Arduino before. I’m trying to learn how to measure Heart Rate and Oxygen Saturation using it.

`Can’t I check if I can get the value of api from the serial monitor?