kai — Raspberry Pi 5 simulation

An interactive Raspberry Pi 5 circuit simulation you can run free in your browser on Velxio, by tingop12345.

Components

• Ili9341
• Membrane Keypad
• Pro Pi Camera

Sketch code

import csv 
import os 
import subprocess 
import time 
from datetime import datetime 
from PIL import Image 
import spidev 
import RPi.GPIO as GPIO 
# ============================== 
# CAMERA 
# ============================== 
CAMERA_FILE = "/home/pi/face.jpg" 
ATTENDANCE_FILE = "/home/pi/attendance.csv" 
CAMERA_WIDTH = 320 
CAMERA_HEIGHT = 240 
# ถ้ากล้องไม่ติด ให้ลองถ่ายใหม่อัตโนมัติ 
CAMERA_MAX_TRIES = 8 
CAMERA_RETRY_DELAY = 1.0      
# วินาที 
CAMERA_TIMEOUT = 15           
# วินาทีต่อครั้ง 
# ============================== 
# STUDENT DATA 
# ============================== 
students = { 
"67122519010": "Student 1", 
"67122519031": "Student 2", 
"67122519038": "Student 3", 
"67122519040": "Student 4", 
"67122519046": "Student 5" 
} 
# ============================== 
# TFT ILI9341 (LANDSCAPE) 
# ============================== 
SPI_BUS = 0 
SPI_DEVICE = 0 
SPI_SPEED = 24000000 
TFT_DC = 25 
TFT_RST = 24 
TFT_WIDTH = 320 
TFT_HEIGHT = 240 
# 0x28 = landscape 
# 0xE8 = landscape หมุน 180 องศา 
# 0x68 = landscape กลับซ้าย-ขวา 
# 0xA8 = landscape กลับบน-ล่าง 
TFT_MADCTL = 0x28 
# แก้ปัญหา "รอบแรกจอไม่ขึ้นภาพ" 
TFT_DRAW_REPEAT = 2           
TFT_SETTLE_DELAY = 0.2        
# ส่งภาพซ้ำกี่ครั้งต่อการแสดงหนึ่งครั้ง 
# วินาที รอหลังตั้งค่าจอก่อนส่งภาพ 
# ============================== 
# KEYPAD 4x4 
# ============================== 
KEYPAD_ROWS = [4, 17, 27, 22] 
KEYPAD_COLS = [5, 6, 13, 26] 
KEYPAD_KEYS = [ 
["1", "2", "3", "A"], 
["4", "5", "6", "B"], 
["7", "8", "9", "C"], 
["*", "0", "#", "D"] 
] 
# ============================== 
# TFT CLASS 
# ============================== 
class ILI9341: 
def __init__(self): 
GPIO.setmode(GPIO.BCM) 
 
        GPIO.setup(TFT_DC, GPIO.OUT) 
        GPIO.setup(TFT_RST, GPIO.OUT) 
 
        self.spi = spidev.SpiDev() 
 
        self.spi.open(SPI_BUS, SPI_DEVICE) 
 
        self.spi.max_speed_hz = SPI_SPEED 
        self.spi.mode = 0 
 
        self.reset() 
        self.init_display() 
 
    def reset(self): 
 
        GPIO.output(TFT_RST, GPIO.HIGH) 
        time.sleep(0.05) 
 
        GPIO.output(TFT_RST, GPIO.LOW) 
        time.sleep(0.05) 
 
        GPIO.output(TFT_RST, GPIO.HIGH) 
        time.sleep(0.15) 
 
    def command(self, value): 
 
        GPIO.output(TFT_DC, GPIO.LOW) 
 
        self.spi.writebytes([value]) 
 
    def data(self, data): 
 
        GPIO.output(TFT_DC, GPIO.HIGH) 
 
        for i in range(0, len(data), 4096): 
 
            self.spi.writebytes( 
                data[i:i + 4096] 
            ) 
 
    def init_display(self): 
 
        self.command(0x01) 
        time.sleep(0.15) 
 
        self.command(0x28) 
 
        self.command(0x3A) 
        self.data([0x55]) 
 
        self.command(0x36) 
        self.data([TFT_MADCTL]) 
 
        self.command(0x11) 
        time.sleep(0.12) 
 
        self.command(0x29) 
        time.sleep(0.05) 
 
    def set_window(self, x0, y0, x1, y1): 
 
        self.command(0x2A) 
 
        self.data([ 
            (x0 >> 8) & 0xFF, 
            x0 & 0xFF,