Files
python-editor/src/static/bundled-demos/pin_demo.py
Jimmy 76129469a1 Add 'Reset demos' button to refresh canonical demo files
Existing accounts (including admin) seeded before new demos shipped
had no easy way to pull in the latest copies — the registration-time
seeder is intentionally non-destructive. The new badge action fetches
src/static/bundled-demos/manifest.json, confirms the overwrite, and
re-copies each canonical demo into code/. Open tabs of those files are
refreshed in place so the user sees the new content immediately.

src/static/bundled-demos/ ships the six canonical files plus the
manifest so this works in local mode and on a static-only host. The
Dockerfile now mirrors workspace/code/<demo>.py into bundled-demos/
during the image build, keeping the two locations in sync.

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-10 06:35:03 +12:00

55 lines
1.2 KiB
Python

"""Pin features demo.
A "Pins" panel appears below the editor while this script runs:
* Pin 2 (OUT) — blinks every 200 ms; the indicator follows along.
* Pin 4 (OUT) — chases through .on() / .off() / .toggle().
* Pin 0 (IN) — click the toggle button in the panel to flip its value.
When it goes 0 -> 1 we register an IRQ that toggles pin 2.
* Pin 13 (PWM) — duty sweeps up and down; the bar shows the live duty cycle.
"""
import time
from machine import Pin, PWM
led_a = Pin(2, Pin.OUT)
led_b = Pin(4, Pin.OUT)
button = Pin(0, Pin.IN, Pin.PULL_UP)
fader = PWM(Pin(13), freq=1000, duty_u16=0)
def on_button(pin):
print("[irq] button rising edge -> toggling pin 2")
led_a.toggle()
button.irq(handler=on_button, trigger=Pin.IRQ_RISING)
tick = 0
duty = 0
direction = 1024
while True:
led_a.value(tick % 2)
if tick % 4 == 0:
led_b.on()
elif tick % 4 == 2:
led_b.off()
duty += direction
if duty >= 65535:
duty = 65535
direction = -1024
elif duty <= 0:
duty = 0
direction = 1024
fader.duty_u16(duty)
button.value()
tick += 1
time.sleep(0.1)