RGB Pixel seems to work

Author: hathach

libraries/BLEAdafruitService/src/services/BLEAdafruitRgbPixel.cpp

@@ -103,8 +103,36 @@ err_t BLEAdafruitRgbPixel::begin(uint8_t pin, uint8_t type)
   Data.setPermission(SECMODE_NO_ACCESS, SECMODE_OPEN);
   // Change to use VLOC STACK to USER due to lack of memroy
   // Data.setMaxLen(Bluefruit.getMaxMtu(BLE_GAP_ROLE_PERIPH));
-  Data.setMaxLen(20);
+  Data.setMaxLen(BLE_GATTS_VAR_ATTR_LEN_MAX);
   VERIFY_STATUS( Data.begin() );
 
+  Data.setWriteCallback(pixel_data_write_cb, true);
+
   return ERROR_NONE;
 }
+
+//--------------------------------------------------------------------+
+// Static callbacks
+//--------------------------------------------------------------------+
+void BLEAdafruitRgbPixel::pixel_data_write_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len)
+{
+  (void) conn_hdl;
+
+  if (len < 3) return;
+
+  BLEAdafruitRgbPixel& svc = (BLEAdafruitRgbPixel&) chr->parentService();
+
+  uint16_t index;
+  memcpy(&index, data, 2);
+  uint8_t flag = data[2];
+
+  uint8_t* buffer = svc._neo->getPixels();
+
+  memcpy(buffer, data+3, len-3);
+
+  // show flag
+  if ( flag & 0x01 )
+  {
+    svc._neo->show();
+  }
+}

libraries/BLEAdafruitService/src/services/BLEAdafruitRgbPixel.h

@@ -57,6 +57,8 @@ class BLEAdafruitRgbPixel : public BLEService
     Adafruit_NeoPixel_Type* _neo;
 
     err_t begin(uint8_t pin, uint8_t type);
+
+    static void pixel_data_write_cb(uint16_t conn_hdl, BLECharacteristic* chr, uint8_t* data, uint16_t len);
 };
 
 

libraries/Bluefruit52Lib/examples/Peripheral/cplay_ble/cplay_ble.ino

@@ -11,11 +11,11 @@
  All text above, and the splash screen below must be included in
  any redistribution
 *********************************************************************/
-#include <bluefruit.h>
+#include <Adafruit_CircuitPlayground.h>
 #include <Adafruit_LittleFS.h>
 #include <InternalFileSystem.h>
+#include <bluefruit.h>
 #include <BLEAdafruitService.h>
-#include <Adafruit_CircuitPlayground.h>
 
 // BLE Service
 BLEDfu  bledfu;  // OTA DFU service
@@ -32,6 +32,8 @@ BLEAdafruitTone         bleTone;
 
 BLEAdafruitRgbPixel     blePixel;
 
+Adafruit_NeoPixel strip = Adafruit_NeoPixel(10, CPLAY_NEOPIXELPIN, NEO_GRB + NEO_KHZ800);
+
 uint16_t measure_button(uint8_t* buf, uint16_t bufsize)
 {
   uint32_t button = 0;
@@ -127,7 +129,8 @@ void setup()
 
   bleTone.begin(CPLAY_BUZZER);
 
-  blePixel.begin();
+  strip.begin();
+  blePixel.begin(&strip);
 
   // Set up and start advertising
   startAdv();