72 lines
3.4 KiB
TypeScript
72 lines
3.4 KiB
TypeScript
/**
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* Regression: Relay-Controlled LED example (examples-circuits.ts
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* `relay-led-switch`). Covers two historical bugs:
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* 1) relay mapper returned null when NC was unwired → no relay cards
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* emitted at all, LED stuck off regardless of coil drive.
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* 2) coil was R || L instead of R — L — in series; at .op the L shorted
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* the R, V(COIL+) ≡ V(COIL-), switch control was 0, NO never closed.
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*
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* Circuit:
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* pin 9 → Rb(1k) → Q1(2N2222).B
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* 5V → relay.COIL+ ; relay.COIL- → Q1.C ; Q1.E → GND
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* 5V → relay.NO ; relay.COM → Rl(220) → LED.A ; LED.C → GND
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* relay.NC left unconnected (normal pattern)
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*/
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import { describe, it, expect } from 'vitest';
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import { buildNetlist } from '../simulation/spice/NetlistBuilder';
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import { runNetlist } from '../simulation/spice/SpiceEngine';
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import type { BuildNetlistInput, PinSourceState } from '../simulation/spice/types';
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function relayWires() {
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return [
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{ id: 'w1', start: { componentId: 'arduino-uno', pinName: '9' }, end: { componentId: 'rb', pinName: '1' } },
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{ id: 'w2', start: { componentId: 'rb', pinName: '2' }, end: { componentId: 'q1', pinName: 'B' } },
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{ id: 'w3', start: { componentId: 'arduino-uno', pinName: '5V' }, end: { componentId: 'rly', pinName: 'COIL+' } },
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{ id: 'w4', start: { componentId: 'rly', pinName: 'COIL-' }, end: { componentId: 'q1', pinName: 'C' } },
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{ id: 'w5', start: { componentId: 'q1', pinName: 'E' }, end: { componentId: 'arduino-uno', pinName: 'GND' } },
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{ id: 'w6', start: { componentId: 'arduino-uno', pinName: '5V' }, end: { componentId: 'rly', pinName: 'NO' } },
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{ id: 'w7', start: { componentId: 'rly', pinName: 'COM' }, end: { componentId: 'rl', pinName: '1' } },
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{ id: 'w8', start: { componentId: 'rl', pinName: '2' }, end: { componentId: 'led1', pinName: 'A' } },
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{ id: 'w9', start: { componentId: 'led1', pinName: 'C' }, end: { componentId: 'arduino-uno', pinName: 'GND' } },
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];
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}
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function relayInput(pinStates: Record<string, PinSourceState>): BuildNetlistInput {
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return {
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components: [
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{ id: 'rb', metadataId: 'resistor', properties: { value: '1000' } },
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{ id: 'q1', metadataId: 'bjt-2n2222', properties: {} },
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{ id: 'rly', metadataId: 'relay', properties: { coil_voltage: 5 } },
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{ id: 'rl', metadataId: 'resistor', properties: { value: '220' } },
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{ id: 'led1', metadataId: 'led', properties: { color: 'red' } },
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],
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wires: relayWires(),
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boards: [{
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id: 'arduino-uno',
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vcc: 5,
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pins: pinStates,
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groundPinNames: ['GND'],
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vccPinNames: ['5V'],
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}],
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analysis: { kind: 'op' },
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};
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}
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describe('Relay-Controlled LED — SPICE integration', () => {
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it('coil energised when pin 9 HIGH → NO closes → LED lights', { timeout: 60_000 }, async () => {
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const { netlist } = buildNetlist(relayInput({ '9': { type: 'digital', v: 5 } }));
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expect(netlist).toMatch(/R_rly_coil\b/);
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expect(netlist).toMatch(/S_rly_no\b/);
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const cooked = await runNetlist(netlist);
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const iLed = Math.abs(cooked.dcValue('i(v_led1_sense)'));
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expect(iLed).toBeGreaterThan(5e-3);
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});
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it('coil idle when pin 9 LOW → NO open → LED dark', { timeout: 60_000 }, async () => {
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const { netlist } = buildNetlist(relayInput({}));
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const cooked = await runNetlist(netlist);
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const iLed = Math.abs(cooked.dcValue('i(v_led1_sense)'));
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expect(iLed).toBeLessThan(1e-6);
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});
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});
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