/
tektononethree.py
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/
tektononethree.py
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#!/usr/bin/python
# -*- coding: utf-8 -*-
import time
# LED STRIPS
from dotstar import Adafruit_DotStar
# OLED DISPLAY
import Adafruit_GPIO.SPI as SPI
import Adafruit_SSD1306
import Image
import ImageDraw
import ImageFont
# DRIVE via ARDUINO
import serial
### OLED
oled = Adafruit_SSD1306.SSD1306_128_64(rst=24, dc=23, spi=SPI.SpiDev(0, 0, max_speed_hz=8000000))
oled.begin()
oled.clear()
# Create blank image for drawing.
# Make sure to create image with mode '1' for 1-bit color.
image = Image.new('1', (oled.width, oled.height))
# Get drawing object to draw on image.
draw = ImageDraw.Draw(image)
# Draw a black filled box to clear the image.
draw.rectangle((0,0,oled.width, oled.height), outline=0, fill=0)
# Load default font.
font = ImageFont.load_default()
# Draw something
draw.text((0, 0), 'TEKTON ONE THREE', font=font, fill=255)
oled.image(image)
oled.display()
oled_status1_pos = (0,20)
oled_status1_poz = (oled.width,39)
oled_status2_pos = (0,40)
oled_status2_poz = (oled.width, 59)
### DRIVE via ARDUINO
arduinoSerial = serial.Serial("/dev/ttyAMA0", baudrate=115200, writeTimeout=0)
### LED
numpixels_F = 216 # Number of LEDs in strip
numpixels_R = 90
datapin_R_RGB = 16 # 36 Physical, 16 GPIO
clockpin_R_RGB = 20 # 38 Physical, 20 GPIO
datapin_R_W = 25 # 22 Physical
clockpin_R_W = 12 # 32 Physical
datapin_F_RGB = 22 # 15 Physical
clockpin_F_RGB = 18 # 12 Physical
datapin_F_W = 17 # 11 Physical
clockpin_F_W = 27 # 13 Physical
# Initialise without image buffers, sending data direct for speed
# bytearray order: FF B G R
led_r_rgb = Adafruit_DotStar(0, datapin_R_RGB, clockpin_R_RGB)
led_r_w = Adafruit_DotStar(0, datapin_R_W, clockpin_R_W)
led_f_rgb = Adafruit_DotStar(0, datapin_F_RGB, clockpin_F_RGB)
led_f_w = Adafruit_DotStar(0, datapin_F_W, clockpin_F_W)
# Calculate gamma correction table, makes mid-range colors look 'right'
gamma = bytearray(256)
for i in range(256):
gamma[i] = int(pow(float(i) / 255.0, 2.7) * 255.0 + 0.5)
# Initialise LED strips
for strip in [led_r_rgb, led_r_w, led_f_rgb, led_f_w]:
strip.begin() # Initialize pins for output
strip.setBrightness(64) # Limit brightness to ~1/4 duty cycle
offBytes = bytearray(numpixels_F * 4)
for i in range(0, numpixels_F*4, 4):
offBytes[i] = 0xFF
offBytes[i+1] = 0x0
offBytes[i+2] = 0x0
offBytes[i+3] = 0x0
strip.show(offBytes)
### SEQUENCE FILES
items_command_index = 0
items_unit_index = 1
items_frame_index = 2
items_meta_time_index = 3 # time is in milliseconds
items_meta_vpos_index = 4 # vpos is 0-1
items_led_start_index = 3
sequence_file = open('tekton_sequence.txt')
sequence_line_count = sum(1 for line in sequence_file)
sequence_file.seek(0)
sequence_meta = [None] * sequence_line_count
sequence_led_f_www = [None] * sequence_line_count
sequence_led_f_rgb = [None] * sequence_line_count
sequence_led_r_www = [None] * sequence_line_count
sequence_led_r_rgb = [None] * sequence_line_count
for line in sequence_file:
items = line.rstrip().split(' ')
# Basic test of line validity
if len(items) < 5:
continue
frame_number = int(items[items_frame_index])
frame_index = frame_number - 1 # assumes 1 is starting frame
if items[items_command_index] == "/meta":
sequence_meta[frame_index] = ( frame_number , int(items[items_meta_time_index]) , float(items[items_meta_vpos_index]) )
elif items[items_command_index] == "/led_f":
pixel_count = (len(items) - items_led_start_index) / 3
pixel_index = 0
sequence_led_f_www[frame_index] = bytearray(pixel_count * 4)
sequence_led_f_rgb[frame_index] = bytearray(pixel_count * 4)
for i in range(items_led_start_index, len(items), 3):
red = int(items[i])
blue = int(items[i+1])
green = int(items[i+2])
if red == blue == green:
sequence_led_f_www[frame_index][pixel_index] = 0xFF
sequence_led_f_www[frame_index][pixel_index+1] = gamma[blue]
sequence_led_f_www[frame_index][pixel_index+2] = gamma[green]
sequence_led_f_www[frame_index][pixel_index+3] = gamma[red]
sequence_led_f_rgb[frame_index][pixel_index] = 0xFF
sequence_led_f_rgb[frame_index][pixel_index+1] = 0x0
sequence_led_f_rgb[frame_index][pixel_index+2] = 0x0
sequence_led_f_rgb[frame_index][pixel_index+3] = 0x0
else:
sequence_led_f_www[frame_index][pixel_index] = 0xFF
sequence_led_f_www[frame_index][pixel_index+1] = 0x0
sequence_led_f_www[frame_index][pixel_index+2] = 0x0
sequence_led_f_www[frame_index][pixel_index+3] = 0x0
sequence_led_f_rgb[frame_index][pixel_index] = 0xFF
sequence_led_f_rgb[frame_index][pixel_index+1] = gamma[blue]
sequence_led_f_rgb[frame_index][pixel_index+2] = gamma[green]
sequence_led_f_rgb[frame_index][pixel_index+3] = gamma[red]
pixel_index += 4
elif items[items_command_index] == "/led_r":
pixel_count = (len(items) - items_led_start_index) / 3
pixel_index = 0
sequence_led_r_www[frame_index] = bytearray(pixel_count * 4)
sequence_led_r_rgb[frame_index] = bytearray(pixel_count * 4)
for i in range(items_led_start_index, len(items), 3):
red = int(items[i])
blue = int(items[i+1])
green = int(items[i+2])
if red == blue == green:
sequence_led_r_www[frame_index][pixel_index] = 0xFF
sequence_led_r_www[frame_index][pixel_index+1] = gamma[blue]
sequence_led_r_www[frame_index][pixel_index+2] = gamma[green]
sequence_led_r_www[frame_index][pixel_index+3] = gamma[red]
sequence_led_r_rgb[frame_index][pixel_index] = 0xFF
sequence_led_r_rgb[frame_index][pixel_index+1] = 0x0
sequence_led_r_rgb[frame_index][pixel_index+2] = 0x0
sequence_led_r_rgb[frame_index][pixel_index+3] = 0x0
else:
sequence_led_r_www[frame_index][pixel_index] = 0xFF
sequence_led_r_www[frame_index][pixel_index+1] = 0x0
sequence_led_r_www[frame_index][pixel_index+2] = 0x0
sequence_led_r_www[frame_index][pixel_index+3] = 0x0
sequence_led_r_rgb[frame_index][pixel_index] = 0xFF
sequence_led_r_rgb[frame_index][pixel_index+1] = gamma[blue]
sequence_led_r_rgb[frame_index][pixel_index+2] = gamma[green]
sequence_led_r_rgb[frame_index][pixel_index+3] = gamma[red]
pixel_index += 4
else:
print("Cannot parse line: " + line)
### GO! --------------------------------
arduinoSerial.write('T')
while True:
start_time = int(time.time() * 1000)
for meta in sequence_meta:
if not meta:
continue
presentation_time = meta[1]
while presentation_time > int(time.time() * 1000) - start_time:
time.sleep(0.001)
frame_index = meta[0] - 1
# Set Drive
arduinoSerial.write(chr(int(meta[2]*255.0)))
# Set LED Strips
# print(str(frame_index) + ", " + sequence_led_f_www[frame_index])
led_f_w.show(sequence_led_f_www[frame_index])
led_f_rgb.show(sequence_led_f_rgb[frame_index])
led_r_w.show(sequence_led_r_www[frame_index])
led_r_rgb.show(sequence_led_r_rgb[frame_index])
# draw.rectangle([oled_status1_pos, oled_status1_poz], outline=0, fill=0)
# draw.text(oled_status1_pos, "Frame: " + items[frame_index], font=font, fill=255)
# draw.rectangle([oled_status2_pos, oled_status2_poz], outline=0, fill=0)
# draw.text(oled_status2_pos, "Position: " + items[items_meta_vpos_index], font=font, fill=255)
# oled.image(image)
# oled.display()