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2025-03-21 16:04:17 +01:00 · 2025-03-21 16:04:17 +01:00 · a5a0434432
commit a5a0434432
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--- a/Software/Cpp/grove_led_fade.cpp
+++ b/Software/Cpp/grove_led_fade.cpp
@ -0,0 +1,79 @@
+//
+// GrovePi Example for using the Grove LED for LED Fade effect (http://www.seeedstudio.com/wiki/Grove_-_LED_Socket_Kit)
+//
+// The GrovePi connects the Raspberry Pi and Grove sensors.  You can learn more about GrovePi here:  http://www.dexterindustries.com/GrovePi
+//
+// Have a question about this example?  Ask on the forums here:  http://forum.dexterindustries.com/c/grovepi
+//
+
+/*
+## License
+
+   The MIT License (MIT)
+
+   GrovePi for the Raspberry Pi: an open source platform for connecting Grove Sensors to the Raspberry Pi.
+   Copyright (C) 2017  Dexter Industries
+
+   Permission is hereby granted, free of charge, to any person obtaining a copy
+   of this software and associated documentation files (the "Software"), to deal
+   in the Software without restriction, including without limitation the rights
+   to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+   copies of the Software, and to permit persons to whom the Software is
+   furnished to do so, subject to the following conditions:
+
+   The above copyright notice and this permission notice shall be included in
+   all copies or substantial portions of the Software.
+
+   THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+   IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+   FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+   AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+   LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+   OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+   THE SOFTWARE.
+*/
+
+#include "grovepi.h"
+using namespace GrovePi;
+
+// sudo g++ -Wall grovepi.cpp grove_led_fade.cpp -o grove_led_fade.out -> without grovepicpp package installed
+// sudo g++ -Wall -lgrovepicpp grove_led_fade.cpp -o grove_led_fade.out -> with grovepicpp package installed
+
+int main()
+{
+	int LED_pin = 5; // Grove LED is connected to digital port D5 on the GrovePi
+	int brigthness = 0; // initial brigthness of 0 (0 to 255)
+
+	try
+	{
+		initGrovePi();
+		pinMode(LED_pin, OUTPUT); // set the LED pin as OUTPUT
+		delay(1000); // and wait a second
+
+		// do indefinitely
+		while(true)
+		{
+			// reset if above 255
+			// the GrovePi has 8-bit DAC
+			if(brigthness > 255)
+				brigthness = 0;
+
+			// and set the LED brigthness
+			analogWrite(LED_pin, brigthness);
+			float percentage_brightness = 100 * float(brigthness) / 255;
+			printf("[pin %d][led brigthness = %.2f%%]\n", LED_pin, percentage_brightness);
+
+			// increment brigthness for next iteration
+			brigthness += 10;
+			delay(50);
+		}
+	}
+	catch(I2CError &error)
+	{
+		printf(error.detail());
+
+		return -1;
+	}
+
+	return 0;
+}