The onboard LED is connected to GPIO 2
#define led 2
void setup() {
// put your setup code here, to run once:
pinMode(2, OUTPUT);
}
void loop() {
// put your main code here, to run repeatedly:
digitalWrite(led, 1);
delay(1000);
digitalWrite(led, 0);
delay(200);
}hello
Overview of the Raspberry Pi 3B+ board
Whenever you have to mount a pcb in place. Most of the time it is easier if we use the screws it on/in the enclosures.
There are standards for screws which are already available in the market. Which will reduce the BOM cost.
If you happen to calculate the screw dimensions based on the mechanical stresses. That would be the best. Since it gives you an optimum result in terms of material choice, strength and cost of the screw.
But in when you want to just mount the PCB on a plastic enclosure then you need to know the dimension in order to provide the provisions for the holes.
There are a few websites which will help in finding the appropriate size screw.
https://www.fasteners.eu/standards/ISO/
I have two PC mice one is Belkin which is bought in 2012, and the other one is HP which I bought in 2019. Both the mouse had a similar problem. Everything was working perfectly fine. But suddenly their left button started behaving in a weird manner. When i click on an object and try to hold the object. The button loses the signal and then it tries again. It also does double clicking. Most of the time it double-clicks whenever you try to do a single click.
I opened the mouse and then i opened the switch housing and just rubbed the contact so that any deposit would be removed. After that, I put the mouse back together. And it started working normally.
You can follow the instruction given in the video below.
To write umlauts
ä – a
Ä – A
ü – u
Ü – U
To write ess tset ß
Write umlaut using ALT codes
| Umlaut | Alt + code |
|---|---|
| Ü | Alt + 0220 |
| ü | alt + 0252 |
| ä | alt + 0228 |
| Ä | alt + 0196 |
| Ö | alt + 0214 |
| ö | alt + 0246 |
| ß | alt + 0223 |