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fix(examples): add series resistor to ESP32 Blink LED example 

The esp32-blink-led example wired the external red LED straight from GPIO4
to the anode with no current-limiting resistor. Add a 220 Ohm resistor in
series (GPIO4 -> R -> LED anode -> GND) so the example models correct
practice and matches the other LED examples.
This commit is contained in:
David Montero 2026-07-02 22:38:17 +02:00
parent a1137f1929
commit 1fa43b380d
1 changed files with 13 additions and 3 deletions
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16
frontend/src/data/examples.ts
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@ -4316,13 +4316,23 @@ void loop() {
delay(500);
}`,
components: [
{ type: 'wokwi-led', id: 'led-ext', x: 460, y: 190, properties: { color: 'red' } },
// 220 Ohm current-limiting resistor in series with the external LED —
// never drive an LED straight off a GPIO. (3.3V - ~2V)/220R ~= 6 mA,
// well under the LED's 20 mA rating.
{ type: 'wokwi-resistor', id: 'r-led', x: 320, y: 205, properties: { value: '220' } },
{ type: 'wokwi-led', id: 'led-ext', x: 470, y: 190, properties: { color: 'red' } },
],
wires: [
// GPIO4 → LED anode
// GPIO4 → resistor → LED anode
{
id: 'w-gpio4-led',
id: 'w-gpio4-r',
start: { componentId: 'arduino-uno', pinName: '4' },
end: { componentId: 'r-led', pinName: '1' },
color: '#e74c3c',
},
{
id: 'w-r-led',
start: { componentId: 'r-led', pinName: '2' },
end: { componentId: 'led-ext', pinName: 'A' },
color: '#e74c3c',
},