modify src folder in piplot folder

piplot/main.py

@@ -0,0 +1,93 @@
+#!/usr/bin/env python3
+
+import os
+import sys
+import time
+import RPi.GPIO as GPIO
+from RPLCD.gpio import CharLCD
+from src.config import *
+from src.menu import menu
+
+###################################################################
+
+GPIO.setwarnings(False)
+lcd = CharLCD(pin_rs=LCD_RS, 
+            pin_e=LCD_E, 
+            pin_rw=None, 
+            pins_data=[LCD_DATA4, LCD_DATA5, LCD_DATA6, LCD_DATA7], 
+            pin_backlight=None, 
+            numbering_mode=GPIO.BCM, 
+            cols=NUM_COLS, 
+            rows=NUM_ROWS, 
+            dotsize=8, 
+            charmap='A00')
+
+arrow = (
+    0b00000,
+    0b10000,
+    0b11000,
+    0b11100,
+    0b11110,
+    0b11100,
+    0b11000,
+    0b10000,
+)
+tilde = (
+    0b00000,
+    0b00000,
+    0b00000,
+    0b01101,
+    0b10101,
+    0b10110,
+    0b00000,
+    0b00000,
+)
+lcd.create_char(0, arrow)
+lcd.create_char(1, tilde)
+menu = menu(lcd,
+            cols=NUM_COLS, 
+            rows=NUM_ROWS,
+            pycnc=PYCNC_EXEC,
+            gcode_path=GCODE_REPO)
+
+def pg_up_cb(channel):
+    ''' page up button callback '''
+    if GPIO.input(channel) == GPIO.HIGH:
+        menu.set_up()
+
+def pg_down_cb(channel):
+    ''' page down button callback '''
+    if GPIO.input(channel) == GPIO.HIGH:
+        menu.set_down()
+
+def pg_ok_cb(channel):
+    ''' page ok button callback '''
+    if GPIO.input(channel) == GPIO.HIGH:
+        menu.set_ok()
+
+def init():
+    ''' init pins and display main menu '''
+    try:
+        GPIO.setup(PG_UP, GPIO.IN)
+        GPIO.setup(PG_DOWN, GPIO.IN)
+        GPIO.setup(PG_OK, GPIO.IN)
+        GPIO.add_event_detect(PG_UP, GPIO.RISING, callback=pg_up_cb, bouncetime=50)
+        GPIO.add_event_detect(PG_DOWN, GPIO.RISING, callback=pg_down_cb, bouncetime=50)
+        GPIO.add_event_detect(PG_OK, GPIO.RISING, callback=pg_ok_cb, bouncetime=50)
+    except:
+        e = sys.exc_info()[1]
+        print("Error : {}".format(e))
+        sys.exit(1)
+    menu.init_menu()
+
+def main():
+    init()
+    while True:
+        time.sleep(1)
+    lcd.close()
+
+###################################################################
+
+if __name__ == '__main__':
+    main()
+