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Some measurements with a logic analyzer and the Raspberry Pi 2 sleep: 0.001500, measured avg: 0.0015357, measured 0.95 perc.: 0.0015573 sleep: 0.0185, measured avg: 0.0186177, measured 0.95 perc.: 0.0186345 servo_pulse_oversleep was set to account for the (expected) overhead of waking up and toggling the pin with help from the numbers above.
35 lines
845 B
Plaintext
35 lines
845 B
Plaintext
import processing.io.*;
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// see setup.png in the sketch folder for wiring details
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// for more reliable operation it is recommended to power
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// the servo from an external power source, see setup_better.png
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SoftwareServo servo1;
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SoftwareServo servo2;
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void setup() {
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size(400, 300);
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servo1 = new SoftwareServo(this);
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servo1.attach(17);
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servo2 = new SoftwareServo(this);
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servo2.attach(4);
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}
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void draw() {
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background(0);
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stroke(255);
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strokeWeight(3);
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// we don't go right to the edge to prevent
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// making the servo unhappy
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float angle = 90 + sin(frameCount / 100.0)*85;
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servo1.write(angle);
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float y = map(angle, 0, 180, 0, height);
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line(0, y, width/2, y);
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angle = 90 + cos(frameCount / 100.0)*85;
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servo2.write(90 + cos(frameCount / 100.0)*85);
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y = map(angle, 0, 180, 0, height);
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line(width/2, y, width, y);
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}
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