chaos/NTP-Timeturner
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Update timeturner.py

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Chris Frankland-Wright 2025-07-07 21:23:23 +01:00 • committed by GitHub
parent 38c15897ae
commit c9d0bf0937
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1 changed files with 41 additions and 20 deletions
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61
timeturner.py
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@ -4,12 +4,23 @@ import serial
import subprocess
import time
import re
import glob
import os
SERIAL_PORT = "/dev/ttyUSB0"
BAUD_RATE = 115200
line_regex = re.compile(r"\[(LOCK|FREE)\]\s+(\d{2}:\d{2}:\d{2}[:;]\d{2})\s+\|\s+([\d.]+)fps")
def find_serial_port():
candidates = sorted(glob.glob('/dev/ttyACM*') + glob.glob('/dev/ttyUSB*'))
for port in candidates:
try:
s = serial.Serial(port, BAUD_RATE, timeout=1)
s.close()
return port
except serial.SerialException:
continue
return None
def parse_ltc_line(line):
match = line_regex.match(line.strip())
if not match:
@ -32,12 +43,26 @@ def run_curses(stdscr):
curses.start_color()
curses.use_default_colors()
curses.init_pair(1, curses.COLOR_GREEN, -1) # LOCK
curses.init_pair(2, curses.COLOR_YELLOW, -1) # FREE
curses.init_pair(3, curses.COLOR_RED, -1) # LOST
curses.init_pair(4, curses.COLOR_CYAN, -1) # Offset
curses.init_pair(1, curses.COLOR_GREEN, -1)
curses.init_pair(2, curses.COLOR_YELLOW, -1)
curses.init_pair(3, curses.COLOR_RED, -1)
curses.init_pair(4, curses.COLOR_CYAN, -1)
serial_port = find_serial_port()
if not serial_port:
stdscr.addstr(0, 0, "❌ Could not find Teensy serial port (ACM/USB).")
stdscr.refresh()
time.sleep(3)
return
try:
ser = serial.Serial(serial_port, BAUD_RATE, timeout=1)
except Exception as e:
stdscr.addstr(0, 0, f"❌ Failed to open {serial_port}: {e}")
stdscr.refresh()
time.sleep(3)
return
ser = serial.Serial(SERIAL_PORT, BAUD_RATE, timeout=1)
lock_count = 0
free_count = 0
last_ltc_dt = None
@ -64,7 +89,6 @@ def run_curses(stdscr):
if sync_requested and not syncing:
syncing = True
# Snap to this LTC frame's HH:MM:SS (no frames)
new_time = last_ltc_dt.strftime("%H:%M:%S")
try:
subprocess.run(["sudo", "date", "-s", new_time], check=True)
@ -74,7 +98,6 @@ def run_curses(stdscr):
sync_requested = False
syncing = False
# Calculate offset
if last_ltc_dt:
sys_time = now.replace(microsecond=0)
offset = (sys_time - last_ltc_dt).total_seconds()
@ -84,11 +107,10 @@ def run_curses(stdscr):
else:
offset_str = "n/a"
# Draw UI
stdscr.erase()
stdscr.addstr(0, 0, "NTP Timeturner v0.5")
stdscr.addstr(2, 0, "LTC Status : ")
stdscr.addstr(1, 0, f"Using Serial Port: {serial_port}")
stdscr.addstr(3, 0, "LTC Status : ")
if last_status == "LOCK":
stdscr.addstr("LOCK", curses.color_pair(1))
elif last_status == "FREE":
@ -96,21 +118,20 @@ def run_curses(stdscr):
else:
stdscr.addstr("LOST", curses.color_pair(3))
stdscr.addstr(3, 0, f"LTC Timecode : {last_ltc_dt.strftime('%H:%M:%S') if last_ltc_dt else 'n/a'}")
stdscr.addstr(4, 0, f"Frame Rate : {frame_rate:.2f}fps")
stdscr.addstr(5, 0, f"System Clock : {now.strftime('%H:%M:%S.%f')[:-3]}")
stdscr.addstr(6, 0, "Sync Offset : ")
stdscr.addstr(4, 0, f"LTC Timecode : {last_ltc_dt.strftime('%H:%M:%S') if last_ltc_dt else 'n/a'}")
stdscr.addstr(5, 0, f"Frame Rate : {frame_rate:.2f}fps")
stdscr.addstr(6, 0, f"System Clock : {now.strftime('%H:%M:%S.%f')[:-3]}")
stdscr.addstr(7, 0, "Sync Offset : ")
stdscr.addstr(offset_str, curses.color_pair(4))
stdscr.addstr(7, 0, f"Lock Ratio : {lock_count} LOCK / {free_count} FREE")
stdscr.addstr(9, 0, "[S] Set system clock to LTC [Ctrl+C] Quit")
stdscr.addstr(8, 0, f"Lock Ratio : {lock_count} LOCK / {free_count} FREE")
stdscr.addstr(10, 0, "[S] Set system clock to LTC [Ctrl+C] Quit")
if 'sync_feedback' in locals():
stdscr.addstr(11, 0, sync_feedback[:curses.COLS - 1])
stdscr.addstr(12, 0, sync_feedback[:curses.COLS - 1])
del sync_feedback
stdscr.refresh()
# Handle input
stdscr.nodelay(True)
try:
key = stdscr.getch()