This is the joystick we have in our laboratory, as you can see has his own board
I would like to use this board for my final project, so I used an atmega 328p that is compatible with arduino libraries, in addition to having more memory than attiny

Thanks to the atmega, I have several analog pins that will serve me for the joystick, since this has 2 pins, one for the X axis and the Y axis, as I found on the internet the joystick is based on 2 potentiometers, so at the moment of program I will take into account the values of a normal potentiometer, to design the board I used a 3x2 pinheader to burn the bootloader of the microcontroller, a 20Mhz oscillator, a reset button, some resistors 0 to be able to skip the tracks, a led to indicate that the plate is energized and capacitors to filter the noise

This would be my plate after several attempts

Outline

I exported my board as png and used fab modules to perform CAM, as in the week of electronic design, I use 0.1 of diameter of milling cutter, for this reason I can pass 2 tracks below the resistances

I soldered with flux and a heat gun as electronics production

I connected with my ISP to burn bootloader

I soldered with flux and a heat gun as electronics production

Once the bootloader is burned, I proceed to program, as I mentioned before the joystick acts as 2 potentiometers so I divided the values, if it is less than 400 on the x axis the program will interpret it as a left position, greater than 490 on the right x axis, in the axis and the same, then a message will be displayed on the serial monitor. To achieve this communication, I will use the FTDI that has the Tx and Rx pins characteristic of this protocol, it should be noted that I took this into account in the design of the board

int xVal; //X values from joystick
int yVal; //Y values from joystick
void setup() {
Serial.begin(9600); //Starts serial at 9600 baud
pinMode(A0, INPUT); //Sets the analog ports used to an input
pinMode(A1, INPUT);
}
void loop() {
xVal = analogRead(A0); //sets the X value
yVal = analogRead(A1); //sets the Y value
//valores centrales
if (xVal>490&& xVal<550 ){
Serial.println("centro x");}
//derecha
if (xVal>700){
Serial.println("derecha");}
//izquierda
if(xVal<490){
Serial.println("izquierda");}
//arriba //valores centrales eje y
if (yVal>490&& yVal<550 ){
Serial.println("centro y");}
//derecha
if (yVal>700){
Serial.println("abajo");}
//abajo
if(yVal<490){
Serial.println("arriba");}
//arriba
delay(5000);
}

These are the connections I made, the FTDI to communicate the data captured by the joystick (analog signal), the X and Y axis of the joystick to pins A0 and A1 of the atmega, that is to say 25 and 26 and VCC and GND of the joystick to the plate

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