Initial upload

2016-10-09 18:40:35 +01:00
parent 74f650a336
commit 5534c9472e
35 changed files with 3239 additions and 0 deletions
--- a/examples/LED/LED.cpp
+++ b/examples/LED/LED.cpp
@@ -0,0 +1,86 @@
+/*
+Provided to you by Emlid Ltd (c) 2014.
+twitter.com/emlidtech || www.emlid.com || info@emlid.com
+
+Example: Control RGB LED with PCA9685 driver onboard of Navio shield for Raspberry Pi.
+
+RGB LED is connected to 0,1,2 channels of PWM controller PCA9685.
+As channels are connected to LED's cathodes the logic is inverted,
+that means that 0 value sets max brightness and 4095 sets min brightness.
+
+To run this example navigate to the directory containing it and run following commands:
+make
+./LED
+*/
+
+#include <Navio/gpio.h>
+#include "Navio/Util.h"
+#include "Navio/PCA9685.h"
+
+using namespace Navio;
+
+int main()
+{
+    static const uint8_t outputEnablePin = RPI_GPIO_27;
+
+    if (check_apm()) {
+        return 1;
+    }
+
+    Pin pin(outputEnablePin);
+
+    if (pin.init()) {
+        pin.setMode(Pin::GpioModeOutput);
+        pin.write(0); /* drive Output Enable low */
+    } else {
+        fprintf(stderr, "Output Enable not set. Are you root?\n");
+        return 1;
+    }
+
+    PCA9685 pwm;
+
+    pwm.initialize();
+
+    uint16_t R = 0, G = 0, B = 4095;
+
+    pwm.setPWM(2, R);
+    pwm.setPWM(1, G);
+    pwm.setPWM(0, B);
+    printf("LED is yellow\n");
+    sleep(1);
+
+    while (true) {
+        for (R = 0; R < 4095; R++)
+            pwm.setPWM(2, R);
+        printf("LED is green\n");
+        sleep(1);
+
+        for (B = 4095; B > 0; B--)
+            pwm.setPWM(0, B);
+        printf("LED is cyan\n");
+        sleep(1);
+
+        for (G = 0; G < 4095; G++)
+            pwm.setPWM(1, G);
+        printf("LED is blue\n");
+        sleep(1);
+
+        for (R = 4095; R > 0; R--)
+            pwm.setPWM(2, R);
+        printf("LED is magneta\n");
+        sleep(1);
+
+        for (B = 0; B < 4095; B++)
+            pwm.setPWM(0, B);
+        printf("LED is red\n");
+        sleep(1);
+
+        for (G = 4095; G > 0; G--)
+            pwm.setPWM(1, G);
+        printf("LED is yellow\n");
+        sleep(1);
+
+    }
+
+    return 0;
+}