Add multi-panel Pico UDP firmware and Python LED control.

Pico panels get static IPs on 10.1.1.10–14 with per-panel LED counts, Makefile deploy targets, and Python examples for animations, sync tests, and direct Pi SPI control.

Co-authored-by: Cursor <cursoragent@cursor.com>
This commit is contained in:
2026-06-28 22:46:08 +12:00
parent d8323bb9a3
commit d5cab2efdf
52 changed files with 4677 additions and 1 deletions

361
examples/panel_sync_test.py Normal file
View File

@@ -0,0 +1,361 @@
#!/usr/bin/env python3
"""Positioning and sync test for multiple Pico panels.
Runs a sequence of patterns on all panels (or one via --panel-index):
identify - panel index digit on each board (check physical mapping)
corners - red/green/blue/yellow corners (check orientation)
crosshair - center row + column
columns - sweep the same column index on every panel together
rows - sweep rows together
flash - simultaneous white flashes (check sync)
pulse - in-sync brightness pulse on all panels
width - sweep columns near right edge (find 38 vs 39 vs 40)
all - full sequence (default)
"""
from __future__ import annotations
import argparse
import math
import socket
import sys
import time
from leds.panel_udp import (
HeadlessMatrix,
PanelTarget,
add_panel_args,
format_panel_targets,
panel_targets_from_args,
send_frame,
)
from leds.text import draw_text_centered
PANEL_COLORS = (
(255, 80, 80),
(80, 255, 80),
(80, 160, 255),
(255, 200, 80),
(200, 80, 255),
)
CORNER_COLORS = {
"top-left": (255, 0, 0),
"top-right": (0, 255, 0),
"bottom-left": (0, 0, 255),
"bottom-right": (255, 255, 0),
}
def _matrices(targets: list[PanelTarget], brightness: float) -> list[tuple[PanelTarget, HeadlessMatrix]]:
return [(t, HeadlessMatrix(t.width, t.height, brightness=brightness)) for t in targets]
def _push(
sock: socket.socket,
targets: list[PanelTarget],
matrices: list[tuple[PanelTarget, HeadlessMatrix]],
port: int,
panel_id: int | None,
) -> None:
"""Send all panel frames in a tight burst for best sync."""
for target, matrix in matrices:
send_frame(sock, target.host, port, matrix.rgb_bytes(), panel_id)
def _clear_all(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
) -> None:
matrices = _matrices(targets, brightness)
for _, matrix in matrices:
matrix.clear()
_push(sock, targets, matrices, port, panel_id)
def test_identify(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
print("Test: identify — each panel shows its index (04)")
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
matrix.clear()
color = PANEL_COLORS[target.index % len(PANEL_COLORS)]
draw_text_centered(matrix, str(target.index), color)
print(f" panel {target.index} -> {target.host} ({target.width}×{target.height})")
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
def test_corners(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
print("Test: corners — TL=red TR=green BL=blue BR=yellow (all panels)")
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
w, h = target.width, target.height
matrix.clear()
points = {
"top-left": (0, 0),
"top-right": (w - 1, 0),
"bottom-left": (0, h - 1),
"bottom-right": (w - 1, h - 1),
}
for name, (x, y) in points.items():
matrix[x, y] = CORNER_COLORS[name]
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
def test_crosshair(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
print("Test: crosshair — center row + column (white)")
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
w, h = target.width, target.height
matrix.clear()
mid_y = h // 2
mid_x = w // 2
for x in range(w):
matrix[x, mid_y] = (255, 255, 255)
for y in range(h):
matrix[mid_x, y] = (200, 200, 200)
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
def test_columns(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
max_width = max(t.width for t in targets)
print(f"Test: column sweep — x=0..{max_width - 1} on all panels together")
for x in range(max_width):
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
matrix.clear()
if x >= target.width:
continue
hue = int(255 * x / max(max_width - 1, 1))
for y in range(target.height):
matrix[x, y] = (hue, 80, 255 - hue)
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
_clear_all(sock, targets, port, brightness, panel_id)
def test_rows(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
height = targets[0].height if targets else 9
print(f"Test: row sweep — y=0..{height - 1} on all panels together")
for y in range(height):
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
matrix.clear()
for x in range(target.width):
matrix[x, y] = (255, 255, 255)
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
_clear_all(sock, targets, port, brightness, panel_id)
def test_flash(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
count: int,
) -> None:
print(f"Test: sync flash — {count} white flashes on all panels")
for n in range(count):
matrices = _matrices(targets, brightness)
for _, matrix in matrices:
matrix.fill((255, 255, 255))
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
_clear_all(sock, targets, port, brightness, panel_id)
time.sleep(pause / 2)
print(f" flash {n + 1}/{count}")
def test_pulse(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
seconds: float,
fps: float,
) -> None:
print(f"Test: sync pulse — {seconds:.0f}s solid red fade (all panels)")
frames = max(int(seconds * fps), 1)
for frame in range(frames):
t = frame / frames
level = 0.15 + 0.85 * (0.5 - 0.5 * math.cos(t * 6.28318))
color = (int(255 * level), 0, 0)
matrices = _matrices(targets, min(brightness * level, 1.0))
for _, matrix in matrices:
matrix.fill(color)
_push(sock, targets, matrices, port, panel_id)
time.sleep(1.0 / fps)
_clear_all(sock, targets, port, brightness, panel_id)
def test_chain_ends(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
) -> None:
print("Test: chain ends — LED 0=red, last LED=green (per panel)")
matrices = _matrices(targets, brightness)
for target, matrix in matrices:
matrix.clear()
matrix[0, 0] = (255, 0, 0)
last = target.pixels - 1
x = last % target.width
y = last // target.width
matrix[x, y] = (0, 255, 0)
print(f" panel {target.index}: index 0 and {last} ({x},{y})")
_push(sock, targets, matrices, port, panel_id)
time.sleep(pause)
def test_width(
sock: socket.socket,
targets: list[PanelTarget],
port: int,
brightness: float,
panel_id: int | None,
pause: float,
col_start: int,
col_end: int,
) -> None:
probe_w = col_end + 1
probe_leds = probe_w * targets[0].height if targets else probe_w * 9
print("Test: width — one full column at a time (right-edge probe)")
print(f" Probing columns {col_start}{col_end} (sending {probe_w}×9 = {probe_leds} LEDs)")
print(" Flash firmware with at least NUM_LEDS={} first, e.g.:".format(probe_leds))
print(f" make deploy PANEL_ID=<n> NUM_LEDS={probe_leds}")
print(" The last column that lights a real LED → width = column + 1")
print(" (column 37 lit → width 38; column 38 lit → width 39)\n")
for x in range(col_start, col_end + 1):
burst: list[tuple[PanelTarget, HeadlessMatrix]] = []
for target in targets:
matrix = HeadlessMatrix(probe_w, target.height, brightness=brightness)
matrix.clear()
for y in range(target.height):
matrix[x, y] = (255, 255, 255)
probe_target = PanelTarget(target.index, target.host, probe_w, target.height)
burst.append((probe_target, matrix))
for probe_target, matrix in burst:
send_frame(sock, probe_target.host, port, matrix.rgb_bytes(), panel_id)
print(f" column {x} → width {x + 1} if this is the last real column")
time.sleep(pause)
_clear_all(sock, targets, port, brightness, panel_id)
TESTS = {
"identify": test_identify,
"corners": test_corners,
"crosshair": test_crosshair,
"columns": test_columns,
"rows": test_rows,
"flash": test_flash,
"pulse": test_pulse,
"ends": test_chain_ends,
"width": test_width,
}
ALL_ORDER = ("identify", "corners", "ends", "crosshair", "columns", "rows", "flash", "pulse")
def main() -> int:
parser = argparse.ArgumentParser(description="Multi-panel positioning and sync test")
add_panel_args(parser)
parser.add_argument(
"--test",
choices=[*TESTS.keys(), "all"],
default="all",
help="which test to run (default: full sequence)",
)
parser.add_argument("--pause", type=float, default=1.2, help="hold time per static pattern")
parser.add_argument("--column-pause", type=float, default=0.12, help="delay per column in sweep")
parser.add_argument("--row-pause", type=float, default=0.25, help="delay per row in sweep")
parser.add_argument("--flashes", type=int, default=3, help="count for sync flash test")
parser.add_argument("--pulse-seconds", type=float, default=4.0)
parser.add_argument("--fps", type=float, default=30.0)
parser.add_argument("--col-start", type=int, default=32, help="width test: first column")
parser.add_argument("--col-end", type=int, default=42, help="width test: last column")
args = parser.parse_args()
targets = panel_targets_from_args(args)
sock = socket.socket(socket.AF_INET, socket.SOCK_DGRAM)
print(f"Panel sync test -> {format_panel_targets(targets, args.port)}")
print("Ctrl+C to stop\n")
tests = ALL_ORDER if args.test == "all" else (args.test,)
try:
for name in tests:
fn = TESTS[name]
if name == "flash":
fn(sock, targets, args.port, args.brightness, args.panel_id, args.pause, args.flashes)
elif name == "pulse":
fn(sock, targets, args.port, args.brightness, args.panel_id, args.pulse_seconds, args.fps)
elif name == "columns":
fn(sock, targets, args.port, args.brightness, args.panel_id, args.column_pause)
elif name == "rows":
fn(sock, targets, args.port, args.brightness, args.panel_id, args.row_pause)
elif name == "width":
fn(sock, targets, args.port, args.brightness, args.panel_id, args.pause, args.col_start, args.col_end)
else:
fn(sock, targets, args.port, args.brightness, args.panel_id, args.pause)
print()
print("Done.")
except KeyboardInterrupt:
print("\nStopped.")
except OSError as exc:
print(f"Network error: {exc}", file=sys.stderr)
return 1
finally:
_clear_all(sock, targets, args.port, args.brightness, args.panel_id)
sock.close()
return 0
if __name__ == "__main__":
raise SystemExit(main())