Diff: main.cpp

Revision:

1:1a59b4810261

Parent:

0:8d7583961274

Child:

2:e400fd4f501b

--- a/main.cpp	Mon Aug 11 11:17:56 2014 +0000
+++ b/main.cpp	Wed Aug 20 09:49:41 2014 +0000
@@ -1,17 +1,8 @@
 /**
- * Copyright 2014 Nordic Semiconductor
- *
- * Licensed under the Apache License, Version 2.0 (the "License");
- * you may not use this file except in compliance with the License.
- * You may obtain a copy of the License at
- *
- *  http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing, software
- * distributed under the License is distributed on an "AS IS" BASIS,
- * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
- * See the License for the specific language governing permissions and
- * limitations under the License
+Scoring Device - for generic game scoring
+Using Puck BLE MBED library from Nordic
+Copyright (C) Nodule.io 2014
+
  */
 
 #define LOG_LEVEL_INFO
@@ -19,26 +10,70 @@
 
 Puck* puck = &Puck::getPuck();
 
-// Sample Gatt characteristic and service UUIDs
-const UUID SAMPLE_GATT_SERVICE = stringToUUID("bftj sample     ");
-const UUID SAMPLE_GATT_CHARACTERISTIC = stringToUUID("bftj sample char");
+// Gatt characteristic and service UUIDs
+const UUID SCORING_GATT_SERVICE =           stringToUUID("nodule.scoring  ");
+const UUID SAMPLES_GATT_CHARACTERISTIC =    stringToUUID("nodule.samples  ");
+
+const int SAMPLES_LEN = 20;
+uint8_t SAMPLES_BUF[SAMPLES_LEN];
+const int SAMPLE_THRESHOLD = 800;
+
+// Setup ADC
+AnalogIn ain(P0_1);
 
-int main(void) {
-    // Add the Gatt characteristic
-    int characteristicValueLength = 1;
+// Timer to avoid repeat sampling
+Timer antiRepeatTimer;
+int lastSampleTime = 0;
+const int MIN_MS_BETWEEN_SAMPLES = 2000;
+
+int main(void) 
+{
+    
+    // Set baud rate
+    logger.baud(115200);
+    
+    // Add the Gatt characteristic for samples
     puck->addCharacteristic(
-            SAMPLE_GATT_SERVICE,
-            SAMPLE_GATT_CHARACTERISTIC,
-            characteristicValueLength,
+            SCORING_GATT_SERVICE,
+            SAMPLES_GATT_CHARACTERISTIC,
+            SAMPLES_LEN,
             GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_READ | GattCharacteristic::BLE_GATT_CHAR_PROPERTIES_NOTIFY);
 
     // Initialize the puck
-    puck->init(0xFEED);
+    puck->init(0xCD01);
+    
+    // Start timer
+    antiRepeatTimer.start();
 
-    // Set the initial value of the characteristic
-    uint8_t new_value = 42;
-    puck->updateCharacteristicValue(SAMPLE_GATT_CHARACTERISTIC, &new_value, characteristicValueLength);
-
-    // Let the puck do it's thing
-    while(puck->drive());
-}
\ No newline at end of file
+    // Wait for something to be found
+    while(puck->drive())
+    {
+        int curTimerVal = antiRepeatTimer.read_ms();
+        if ((lastSampleTime < curTimerVal) || (curTimerVal - lastSampleTime > MIN_MS_BETWEEN_SAMPLES))
+        {
+            // Check threshold
+            unsigned short val = ain.read_u16();
+            if(val > SAMPLE_THRESHOLD)
+            {
+                for (int i = 0; i < SAMPLES_LEN; i++) 
+                {
+                    SAMPLES_BUF[i] = ain.read_u16() - 760;
+                    wait_ms(10);
+                }
+                    
+                // Set the value of the characteristic
+                puck->updateCharacteristicValue(SAMPLES_GATT_CHARACTERISTIC, SAMPLES_BUF, SAMPLES_LEN);
+                
+                // Display readings
+                for (int j = 0; j < SAMPLES_LEN; j++)
+                {
+                    LOG_INFO("%d ", SAMPLES_BUF[j]);
+                }
+                LOG_INFO("\n");
+                
+                // Set timer to disallow repeated readings
+                lastSampleTime = curTimerVal;
+            }
+        }                
+    }
+}