PCB Controller

PCB controller based on an arduino made with a milling machine designed for a radio controlled bot

The final look of the controller:

video_2023-06-23_14-38-05.cut.mp4

Сomponents:

• NRF+

• Arduino Pro Micro

• x2 joystick

• potentiometer

• powerbank

Work plan:

• In EasyEDA add the required electronic components and connect them
• Trace and correct the tracks for the PCB, 1 mm indentation and 0.8 mm track thickness
• Download a .dxf file and remove unnecessary vectors with the Rhino program
• Correct vectors in Rhino or ArtCAM and mirror the whole schematic
• Make milling on CNC machine, prepare file and paths in ArtCAM
• We mill the holes for the pins through, mill 0.5mm, mill the tracks 0.2mm deep, mill 0.3mm tapered
• Since the PCB is double sided and the second layer is not needed, we remove it completely with the 6mm mill
• Solder the pins to the board according to the holes and install the components
• The design can be absolutely whatever you want
• In this case I painted the front part before soldering and cut out a transparent cover plate from acrylic on a laser machine, it is fastened with screws

Scematics:

PCB:

ArtCAM:

Milling:

Painting:

Soldering:

Acrylic panel:

PCB Controller code:

#include <SPI.h>
#include <nRF24L01.h>
#include <RF24.h>

RF24 radio(8, 10);
int data[3];

#define PIN_VRX A2
#define PIN_VRY A3

void setup() {
  Serial.begin(9600);

  radio.begin();
  radio.setChannel(1);
  radio.setDataRate(RF24_1MBPS);
  radio.setPALevel(RF24_PA_HIGH);
  radio.openWritingPipe(0x2234567890LL);
  radio.stopListening();

  pinMode(A1, INPUT);
}

void loop() {
  int potval = analogRead(A1);

  radio.write(&data, sizeof(data));
  delay(50);

  Serial.println(potval);
     
  int valX = analogRead(PIN_VRX);
  int valY = analogRead(PIN_VRY);

  Serial.print("X = ");
  Serial.println(analogRead(PIN_VRX));

  Serial.print("Y = ");
  Serial.println(analogRead(PIN_VRY));

  data[0] = potval;
  data[1] = valX;
  data[2] = valY;
}