Gate

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1with dai.Pipeline() as pipeline:
2    gate  = pipeline.create(dai.node.Gate)

1dai::Pipeline pipeline;
2auto gate = pipeline.create<dai::node::Gate>();

1with dai.Pipeline(device) as pipeline:
2    camera = pipeline.create(dai.node.Camera).build()
3    cameraOut = camera.requestOutput((640, 400), fps=30)
4
5    gate  = pipeline.create(dai.node.Gate)
6    cameraOut.link(gate.input)
7    cameraQueue = gate.output.createOutputQueue()
8    gateControlQueue = gate.inputControl.createInputQueue()
9
10    gateControl = dai.GateControl()
11
12    pipeline.start()
13
14    startTime = time.monotonic()
15    gateOpen = True
16
17    # Open gate every odd second and close every even second
18    while pipeline.isRunning():
19        currentTime = time.monotonic()
20        if (startTime-currentTime) % 2 == 0: 
21            if not gateOpen:
22                gateControlQueue.send(dai.GateControl.openGate())
23                openGate = True
24        else: 
25            if gateOpen:
26                gateControlQueue.send(dai.GateControl.closeGate())
27                gateOpen = False

1while(pipeline.isRunning()) {
2    auto frame = cameraQueue->tryGet<dai::ImgFrame>();
3    if(frame != nullptr) {
4        cv::imshow("camera", frame->getCvFrame());
5    }
6
7    auto currentTime = std::chrono::steady_clock::now();
8    auto elapsedSeconds = std::chrono::duration_cast<std::chrono::seconds>(currentTime - startTime).count();
9    auto oddSecond = (elapsedSeconds % 2) != 0;
10
11    if(oddSecond) {
12        if(!gateOpen) {
13            gateControlQueue->send(dai::GateControl::openGate());
14            gateOpen = true;
15        }
16    } else {
17        if(gateOpen) {
18            gateControlQueue->send(dai::GateControl::closeGate());
19            gateOpen = false;
20        }
21    }
22
23    int key = cv::waitKey(1);
24    if(key == 'q') {
25        pipeline.stop();
26        break;
27    }
28}