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74 lines
1.6 KiB
Plaintext
74 lines
1.6 KiB
Plaintext
/*
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* Copyright (c) 2020 Arm Limited or its affiliates. All rights reserved.
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*
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* SPDX-License-Identifier: Apache-2.0
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*
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* Licensed under the Apache License, Version 2.0 (the License); you may
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* not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an AS IS BASIS, WITHOUT
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* WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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*
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* This example reads audio data from the on-board PDM microphones
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* and try to detect a 1kHz sine signal using a SVM predictor.
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*
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* Circuit:
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* - Arduino Nano 33 BLE board
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*/
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import processing.serial.*;
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Serial myPort;
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// Color opacity for the test display
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int n = 0;
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// Decay of color opacity
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int decay = 5;
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void setup()
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{
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size(380, 150);
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myPort = new Serial(this, "COM6", 115200);
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textSize(72); // set text size
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myPort.clear();
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}
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void draw() {
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// If some data is available on the serial port then some signal was detected.
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if (myPort.available() > 0)
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{
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// Opacity is set to maximum.
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n=255;
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myPort.clear();
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}
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background(255);
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textAlign(CENTER);
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// Define a green color with some oapcity
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fill(0, 255, 0, n);
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// Decrease the opacity until it is 0.
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if (n >= decay)
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{
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n = n - decay;
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}
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else
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{
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n = 0;
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}
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// Display the word "Detected"
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text("DETECTED", 190, 95);
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}
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