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Content import display import light_sensor import utime import buttons import os TRANSMISSION_RECEIVED_TXT = "blinki-received.txt" TRANSMISSION_CALIBRATE = [1, 0, 1, 0, 1, 0, 1, 0] TRANSMISSION_START_SIGNATURE = [0, 0, 0, 0, 0, 1, 0, 1] TRANSMISSION_END_SIGNATURE = [0, 0, 0, 0, 0, 0, 0, 0] TRANSMISSION_TIMING_SIGNATURE = [1, 0, 1, 1] TIMING = 75 SCROLLSPEED = 20 def init(): if TRANSMISSION_RECEIVED_TXT not in os.listdir("/"): with open("/" + TRANSMISSION_RECEIVED_TXT, "w") as f: f.write("blinki transmissions") def triangle(disp, x, y, left): yf = 1 if left else -1 scale = 6 disp.line(x - scale * yf, int(y + scale / 2), x, y) disp.line(x, y, x, y + scale) disp.line(x, y + scale, x - scale * yf, y + int(scale / 2)) def save_transmission(): with open(TRANSMISSION_RECEIVED_TXT, "a") as myfile: myfile.write("\n" + decoded_string) def transmission_to_list(length=0): global read_values_list global read_values_current read_values_current = light_sensor.read() if length != 0: while len(read_values_list) >= length: read_values_list.pop(0) read_values_list.append(read_values_current) def transmission_list_to_byte_list(): global read_values_list_binary global read_values_list_copy global read_values_list if read_values_list[0] <= read_values_mean: read_values_list_binary.append(0) read_values_list_copy.append(0) else: read_values_list_binary.append(1) read_values_list_copy.append(1) del read_values_list[:1] if len(read_values_list_binary) == 2: if read_values_list_binary[:2] == [0, 0]: read_values_list_binary_filtered.append(0) del read_values_list_binary[:2] if read_values_list_binary[:2] == [1, 1]: read_values_list_binary_filtered.append(1) del read_values_list_binary[:2] if read_values_list_binary[:2] == [0, 1]: read_values_list_binary_filtered.append(0) del read_values_list_binary[:1] if read_values_list_binary[:2] == [1, 0]: read_values_list_binary_filtered.append(1) del read_values_list_binary[:1] def get_transmission_mean(): global read_values_mean transmission_to_list(8) read_values_mean = sum(read_values_list) / len(read_values_list) def detect_transmission_start(): global read_values_list_binary_filtered global transmission_started #print(read_values_list_binary_filtered) if read_values_list_binary_filtered[-8:] == TRANSMISSION_START_SIGNATURE: transmission_started = 1 def detect_transmission_end(): global transmission_ended if read_values_list_binary_filtered[-8:] == TRANSMISSION_END_SIGNATURE: transmission_ended = 1 def strip_timecode(): global read_values_list_binary_filtered if read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)] == TRANSMISSION_TIMING_SIGNATURE: del read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)] elif read_values_list_binary_filtered[1:len(TRANSMISSION_TIMING_SIGNATURE)+1] == TRANSMISSION_TIMING_SIGNATURE: del read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)+1] elif read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)-1] == TRANSMISSION_TIMING_SIGNATURE[1:len(TRANSMISSION_TIMING_SIGNATURE)]: del read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)-1] else: del read_values_list_binary_filtered[:len(TRANSMISSION_TIMING_SIGNATURE)-1] if read_values_list_binary_filtered[0] == 1: del read_values_list_binary_filtered[:1] def decode_byte(): global read_values_list_binary_filtered global decoded_string byte_string = "" for item in read_values_list_binary_filtered[:8]: byte_string += str(item) del read_values_list_binary_filtered[:8] decoded_string += chr(int(byte_string, 2)) def decode_transmission(): global decoded_string del read_values_list_binary_filtered[0] while len(read_values_list_binary_filtered) >= 8+len(TRANSMISSION_TIMING_SIGNATURE): decode_byte() strip_timecode() def menu(): if app_state == 0: disp.print("start", posy=0, fg=[255, 255, 255]) disp.print("receive", posy=20, fg=[255, 255, 255]) disp.print("calibration", posy=40, fg=[255, 255, 255]) disp.print("hold", posx=85, posy=60, fg=[0, 255, 255]) triangle(disp, 150, 66, False) if app_state == 2: disp.print("calibrating", posy=0, fg=[0, 255, 255]) disp.print(str(min(read_values_list)), posx=0, posy=20, fg=[255, 0, 0]) #disp.print(str(round(read_values_mean, 2)), posx=46, posy=40, fg=[0, 255, 255]) disp.print(str(max(read_values_list)), posx=50, posy=20, fg=[0, 255, 0]) disp.print("release", posx=36, posy=40, fg=[255, 255, 255]) disp.print("first", posx=36, posy=60, fg=[255, 255, 255]) triangle(disp, 150, 66, False) if app_state == 1: disp.print("waiting for", posy=0, fg=[255, 255, 255]) disp.print("transmission", posy=20, fg=[255, 255, 255]) printlist = ''.join(str(e) for e in read_values_list_binary_filtered[-22:]) disp.print(printlist, posx=0, posy=40, fg=[0, 255, 0]) disp.print("reset", posx=12, posy=60, fg=[255, 0, 0]) triangle(disp, 10, 66, True) if app_state == 3: disp.print("transmission", posy=0, fg=[255, 255, 255]) disp.print("started", posy=20, fg=[255, 255, 255]) printlist = ''.join(str(e) for e in read_values_list_binary_filtered[-22:]) disp.print(printlist, posx=0, posy=40, fg=[0, 255, 0]) if app_state == 5: global offset_counter linelength = len(decoded_string) maxchars = 11 if linelength > maxchars: offset = offset_counter//SCROLLSPEED #print(offset) #print(offset_counter) disp.print(decoded_string[offset:maxchars+offset], posx=0, posy=20, fg=[0, 255, 0]) offset_counter += 1 if maxchars + offset > linelength: offset_counter = 0 else: disp.print(decoded_string, posx=0, posy=20, fg=[0, 255, 0]) disp.print("ended", posy=0, fg=[255, 255, 255]) disp.print("save", posx=85, posy=60, fg=[255, 255, 255]) disp.print("back", posx=15, posy=60, fg=[255, 255, 255]) triangle(disp, 10, 66, True) triangle(disp, 150, 66, False) def reset(): global app_state global offset_counter global read_values_current global read_values_list global read_values_list_binary global read_values_list_binary_filtered global read_values_list_binary_copy global read_values_list_copy global cycle_start_time global cycle_time global transmission_decoded global transmission_started global transmission_ended global mean_calculation_started global counter global decoded_string global synchronized app_state = 0 offset_counter = 0 read_values_current = 0 read_values_list = [0] read_values_list_binary = [0] read_values_list_binary_filtered = [] read_values_list_binary_copy = [] read_values_list_copy = [] cycle_start_time = 0 cycle_time = 0 transmission_decoded = "" transmission_started = 0 transmission_ended = 0 mean_calculation_started = 0 counter = 0 decoded_string = "" synchronized = 0 app_state = 0 offset_counter = 0 read_values_current = 0 read_values_list = [0] read_values_list_binary = [0] read_values_list_binary_filtered = [] read_values_list_binary_copy = [] read_values_list_copy = [] cycle_start_time = 0 cycle_time = 0 transmission_decoded = "" read_values_mean = sum(read_values_list) / len(read_values_list) transmission_started = 0 transmission_ended = 0 mean_calculation_started = 0 button_pressed = False disp = display.open() counter = 0 decoded_string = "" synchronized = 0 init() while True: v = buttons.read(buttons.BOTTOM_LEFT | buttons.BOTTOM_RIGHT | buttons.TOP_RIGHT) if v == 0: button_pressed = False disp.clear() if app_state == 0: if v == 4: mean_calculation_started = 1 app_state = 2 cycle_start_time = utime.time_ms() decoded_string = "" if app_state == 2: get_transmission_mean() if v == 0 and mean_calculation_started == 1: app_state = 1 if app_state == 1: mean_calculation_started = 0 transmission_to_list() transmission_list_to_byte_list() detect_transmission_start() if not button_pressed and v & buttons.BOTTOM_LEFT != 0: button_pressed = True reset() #print(read_values_list) #print(read_values_list_binary) #print(read_values_list_binary_filtered) if transmission_started == 1: read_values_list = [] read_values_list_copy = [] read_values_list_binary_copy = [] read_values_list_binary = [] read_values_list_binary_filtered = [] app_state = 3 if app_state == 3: transmission_to_list() transmission_list_to_byte_list() #filter_binary_list() detect_transmission_end() if transmission_ended == 1: app_state = 4 if app_state == 4: decode_transmission() app_state = 5 if app_state == 5: if not button_pressed and v & buttons.BOTTOM_RIGHT != 0: button_pressed = True print(decoded_string) save_transmission() reset() if not button_pressed and v & buttons.BOTTOM_LEFT != 0: button_pressed = True reset() menu() disp.update() if app_state == 1 or app_state == 2 or app_state == 3: while utime.time_ms() - cycle_start_time <= cycle_time: wait = True #print("wait") #print(utime.time_ms()) #print(cycle_start_time) #print(cycle_time) #print("wait-end") cycle_time += TIMING