Add ability to set realtime value

Adafruit_DRV2605.cpp

@@ -85,6 +85,9 @@ void Adafruit_DRV2605::setMode(uint8_t mode) {
   writeRegister8(DRV2605_REG_MODE, mode);
 }
 
+void Adafruit_DRV2605::setRealtimeValue(uint8_t rtp) {
+  writeRegister8(DRV2605_REG_RTPIN, rtp);
+}
 
 /********************************************************************/
 

Adafruit_DRV2605.h

@@ -81,6 +81,7 @@ class Adafruit_DRV2605 {
   void selectLibrary(uint8_t lib);
   void go(void);
   void setMode(uint8_t mode);
+  void setRealtimeValue(uint8_t rtp);
   // Select ERM (Eccentric Rotating Mass) or LRA (Linear Resonant Actuator) vibration motor
   // The default is ERM, which is more common
   void useERM();

examples/realtime/realtime.ino

@@ -0,0 +1,39 @@
+#include <Wire.h>
+#include "Adafruit_DRV2605.h"
+
+Adafruit_DRV2605 drv;
+
+void setup() {
+  Serial.begin(9600);
+  Serial.println("DRV test");
+  drv.begin();
+
+  // Set Real-Time Playback mode
+  drv.setMode(DRV2605_MODE_REALTIME);
+}
+
+uint8_t rtp_index = 0;
+uint8_t rtp[] = {
+  0x30, 100, 0x32, 100, 
+  0x34, 100, 0x36, 100, 
+  0x38, 100, 0x3A, 100,
+  0x00, 100,
+  0x40, 200, 0x00, 100, 
+  0x40, 200, 0x00, 100, 
+  0x40, 200, 0x00, 100
+};
+
+void loop() {
+
+  if (rtp_index < sizeof(rtp)/sizeof(rtp[0])) {
+    drv.setRealtimeValue(rtp[rtp_index]);
+    rtp_index++;
+    delay(rtp[rtp_index]);
+    rtp_index++;
+  } else {
+    drv.setRealtimeValue(0x00);
+    delay(1000);
+    rtp_index = 0;
+  }
+
+}