46 lines
936 B
Python
46 lines
936 B
Python
|
#!/bin/env python
|
||
|
|
|
||
|
|
import serial
|
||
|
|
import pygame
|
||
|
|
|
||
|
|
ser = serial.Serial("/dev/ttyACM0", 115200)
|
||
|
|
pygame.init()
|
||
|
|
|
||
|
|
size = width, height = 640, 480
|
||
|
|
black = 0, 0, 0
|
||
|
|
screen = pygame.display.set_mode(size)
|
||
|
|
background = pygame.Surface(screen.get_size())
|
||
|
|
background = background.convert()
|
||
|
|
background.fill(black)
|
||
|
|
|
||
|
|
try:
|
||
|
|
ser.open()
|
||
|
|
except Exception, e:
|
||
|
|
print("Error while opening serial port : "+str(e))
|
||
|
|
|
||
|
|
if ser.isOpen():
|
||
|
|
ser.flushInput()
|
||
|
|
ser.flushOutput()
|
||
|
|
|
||
|
|
maximum = -1.
|
||
|
|
minimum = -1.
|
||
|
|
print("Calibration")
|
||
|
|
screen.blit(background, (0,0))
|
||
|
|
pygame.display.flip()
|
||
|
|
for i in range(50) :
|
||
|
|
line = float(ser.readline())
|
||
|
|
|
||
|
|
if line < minimum or minimum < 0:
|
||
|
|
minimum = line
|
||
|
|
if line > maximum:
|
||
|
|
maximum = line
|
||
|
|
|
||
|
|
print("Go")
|
||
|
|
while True:
|
||
|
|
line = float(ser.readline())
|
||
|
|
background.fill((int(255.*(line-minimum)/(maximum-minimum)), 0, 0))
|
||
|
|
screen.blit(background, (0,0))
|
||
|
|
pygame.display.flip()
|
||
|
|
|
||
|
|
ser.close()
|