WEEK4 Electronics production

WEEK4 Electronics production

Group Assignment

characterize the design rules for your in-house PCB production process send a PCB out to a board house
Group assignment Page

Indivisual Assignment

make and test a microcontroller development board
extra credit: personalize the board

Data

Traces data

Drills data

Interior data

Generate G-code from PNG

I generate G-code from PNG files using mods CE.

gSender (Send g-code to CNC milling machine)

Start milling

This is my fourth try using the V-bit on the milling machine, but I still can't cut properly.

Leveling

Because the base is not level, We level it. During the leveling process, we use the vacuum suction to suck up wood chips that may fly around.

Finally

After the fifth failed try with the V-Bit, We gave up on it and switched to a 1/64 bit. On the sixth try, We finally succeeded.

Deburring

Using the water stone sharpening sheet

Finished

Soldering

Tools

・Soldering iron
・Solder
・Flux
・Solder sucker
・Nipper
・Tweezer

Components Amount
SEEED STUDIO XIAO RP2040 1
CONN HEADER SMD 10POS 1.27MM 1
CONN HEADER SMD R/A 6POS 2.54MM 1
Tactile Switch SPST-NO Top Actuated Surface Mount 1
LED BLUE CLEAR 1206 SMD 3
RES 1K OHM 1% 1/4W 1206 4
RES 499 OHM 1% 1/4W 1206 1
CONN HDR 7POS 0.1 TIN SMD* 2

Soldering

Apply a small amount of flux to the solder pads where the component leads will be soldered.
Single-Point Soldering:
・Use a soldering iron to melt solder onto one pad of the PCB, creating a small solder blob.
・Accurately position the component
・Reheat the solder blob with the soldering iron, allowing the component's terminal to come into contact and melt the solder.

Ready to run test program.

Install Arudino IDE

open the Arduino Program

Open up the Arduino IDE and go to File->Preferences.
In the dialog that pops up, enter the following URL in the "Additional Boards Manager URLs" field:
https://github.com/earlephilhower/arduino-pico/releases/download/global/package_rp2040_index.json

boards manager

Go to Tools->Boards->Board Manager in the IDE
Type "pico" in the search box and select "Add":

configure the Arduino IDE for the Seeed Studio XIAO RP2040.

Load the Blink program.

const int buttonPin = 27;
const int ledPin = 26;
const int ledPin1 = 1;
const int ledPin2 = 0;

int buttonState = 0;

// the setup function runs once when you press reset or power the board
void setup() {
  // initialize digital pin LED_BUILTIN as an output.
  pinMode(ledPin, OUTPUT);
  pinMode(ledPin1, OUTPUT);
  pinMode(ledPin2, OUTPUT);
  pinMode(buttonPin, INPUT);
}

// the loop function runs over and over again forever
void loop() {

  buttonState = digitalRead(buttonPin);

  if (buttonState == HIGH) {
    digitalWrite(ledPin, HIGH);  // turn the LED on (HIGH is the voltage level)
    digitalWrite(ledPin1, HIGH);  // turn the LED on (HIGH is the voltage level)
    digitalWrite(ledPin2, HIGH);  // turn the LED on (HIGH is the voltage level)
  } else {
    digitalWrite(ledPin, LOW);  // turn the LED on (HIGH is the voltage level)    
    digitalWrite(ledPin1, LOW);  // turn the LED on (HIGH is the voltage level)    
    digitalWrite(ledPin2, LOW);  // turn the LED on (HIGH is the voltage level)    
  }
}

Run successfully